You have selected one of the finest marine power packages available. It incorporates numerous design features to
ensure operating ease and durability.
With proper care and maintenance, you will enjoy using this product for many boating seasons. To ensure maximum
performance and carefree use, we ask that you thoroughly read this manual.
The Operation and Maintenance Manual contains specific instructions for using and maintaining your product. We
suggest that this manual remain with the product for ready reference whenever you are on the water.
Thank you for purchasing one of our products. We sincerely hope your boating will be pleasant!
Mercury Marine, Fond du Lac, Wisconsin, U.S.A.
Name / function:
John Pfeifer, President,
Mercury Marine
Read This Manual Thoroughly
IMPORTANT: If you do not understand any portion of this manual, contact your dealer. Your dealer can also provide a
demonstration of actual starting and operating procedures.
Notice
Throughout this publication, and on your power package, warnings, cautions, and notices, accompanied by the
8M0145546 518 eng
International Hazard Symbol !, may be used to alert the installer and user to special instructions concerning a
particular service or operation that may be hazardous if performed incorrectly or carelessly. Observe them carefully.
These safety alerts alone cannot eliminate the hazards that they signal. Strict compliance with these special instructions
while performing the service, plus common sense operation, are major accident prevention measures.
WARNING
!
Indicates a hazardous situation which, if not avoided, could result in death or serious injury.
!
CAUTION
Indicates a hazardous situation which, if not avoided, could result in minor or moderate injury.
NOTICE
Indicates a situation which, if not avoided, could result in engine or major component failure.
IMPORTANT: Identifies information essential to the successful completion of the task.
NOTE: Indicates information that helps in the understanding of a particular step or action.
IMPORTANT: The operator (driver) is responsible for the correct and safe operation of the boat, the equipment aboard,
and the safety of all occupants aboard. We strongly recommend that the operator read this Operation and Maintenance
Manual and thoroughly understand the operational instructions for the power package and all related accessories before
the boat is used.
California Proposition 65
WARNING: This product can expose you to chemicals including diesel engine exhaust, which is
known to the State of California to cause cancer and birth defects or other reproductive harm. For
more information go to www.P65Warnings.ca.gov.
TDI 3.0L Diesel Engine Sterndrive Models
The serial numbers are the manufacturer’s keys to numerous engineering details that apply to your Mercury Marine
power package. When contacting Mercury Marine about service, always specify model and serial numbers.
Descriptions and specifications contained herein were in effect at the time this was approved for printing. Mercury
Marine, whose policies are based on continuous improvement, reserves the right to discontinue models at any time or to
change specifications or designs without notice and without incurring obligation.
The product you have purchased comes with a limited warranty from Mercury Marine; the terms of the warranty are set forth
in the Warranty Manual included with the product. The Warranty Manual contains a description of what is covered, what is not
covered, the duration of coverage, how to best obtain warranty coverage, important disclaimers and limitations ofdamages, and other related information. Please review this important information.
Mercury Marine products are designed and manufactured to comply with our own high quality standards, applicable industry
standards and regulations, as well as certain emissions regulations. At Mercury Marine every engine is operated and tested
before it is boxed for shipment to make sure that the product is ready for use. In addition, certain Mercury Marine products are
tested in a controlled and monitored environment, for up to 10 hours of engine run time, in order to verify and make a record of
compliance with applicable standards and regulations. All Mercury Marine product, sold as new, receives the applicable limited
warranty coverage, whether the engine participated in one of the test programs described above or not.
Alpha, Axius, Bravo One, Bravo Two, Bravo Three, GO BOLDLY., Circle M with Waves Logo, K‑planes, Mariner, MerCathode,
MerCruiser, Mercury, Mercury with Waves Logo, Mercury Marine, Mercury Precision Parts, Mercury Propellers, Mercury
Racing, MotorGuide, OptiMax, Quicksilver, SeaCore, Skyhook, SmartCraft, Sport‑Jet, Verado, VesselView, Zero Effort, Zeus,
#1 On the Water and We're Driven to Win are registered trademarks of Brunswick Corporation. Pro XS is a trademark of
Brunswick Corporation. Mercury Product Protection is a registered service mark of Brunswick Corporation.
Identification Records
Please record the following applicable information:
MerCruiser
Engine Model and HorsepowerEngine Serial Number
Transom Assembly Serial Number (Sterndrive)Gear RatioSterndrive Unit Serial Number
Transmission Model (Inboard)Gear RatioTransmission Serial Number
Propeller NumberPitchDiameter
Watercraft Identification Number (WIN) or
Hull Identification Number (HIN)
Boat ManufacturerBoat ModelLength
Exhaust Gas Emissions Certification Number (Europe Only)
After the 20‑Hour Break‑In Period................................ 31
End of First Season Checkup........................................... 31
Fuel Requirements................................................................... 34Nonferrous Metals and the Fuel System............................ 34
90-8M0145546 eng MAY 2018Page i
Diesel Fuel in Cold Weather................................................... 34
a - Gear lubrication monitor
b - Engine control module cover
c - Engine oil dipstick
d - Engine coolant expansion
tank
e - Power steering oil reservoir
f - Charge air cooler
(intercooler)
g - Sacrificial anode
h - Seawater inlet connection
i - Seawater pump
j - Seawater‑cooling system
drain screw
k - Closed‑cooling system drain
screw
l - Heat exchanger
m - Alternator
n - Water‑in‑fuel sensor
o - Fuel filter with water sensor
p - Manual fuel primer
3.0 Liter TDI Starboard View Components
a - Engine control module cover
b - Gear lubrication monitor
c - Manual fuel primer
d - Fuel filter with water sensor
e - Water‑in‑fuel sensor
f - Motor mount
g - Starter
h - Air filter
i - Turbocharger
j - Oil filter
k - Oil fill cap
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a - Oil filter
b - Air filter
c - Turbocharger
d - Exhaust pipe
e - Seawater‑cooling drain screw
f - Power steering/gearbox oil
cooler
g - Motor mount
h - Power steering pump
i - Charge air cooler (intercooler)
j - Oil fill cap
k - Power steering oil reservoir
l - Engine coolant expansion
tank
m - Engine control module cover
Features and Controls
TDI 3.0 Liter Engine Features
The Mercury Diesel 3.0 Liter 6‑cylinder engine has the following features:
•Four‑stroke diesel engine
•Common‑rail direct injection
•6 cylinders (90° V angle)
•3.0 liter displacement (183.1 cid)
•Crankshaft mounted on four bearings
•4 valves per cylinder
•Hydraulically adjusted bucket tappets
•Forced‑feed circulatory engine lubrication with geared oil pump and replaceable oil filter in main flow
•Dry air filter
•Turbocharged with variable turbine geometry
•Two separate cooling circuits
•Seawater‑cooled circuit runs through the oil cooler, the main heat exchanger, and the exhaust manifold.
•Closed‑cooling circuit runs coolant as a closed pressurized system through the engine block, oil cooler, exhaust
collector, and after reaching the operating temperature, through the main heat exchanger.
Refer to Specifications for additional details.
Lanyard Stop Switch
The purpose of a lanyard stop switch is to turn off the engine when the operator moves far enough away from the operator's
position (as in accidental ejection from the operator's position) to activate the switch. Tiller handle outboards and some remote
control units are equipped with a lanyard stop switch. A lanyard stop switch can be installed as an accessory ‑ generally on the
dashboard or side adjacent to the operator's position.
A decal near the lanyard stop switch is a visual reminder for the operator to attach the lanyard to their personal flotation device
(PFD) or wrist.
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Section 1 - Getting to Know Your Power Package
The lanyard cord is usually 122–152 cm (4–5 feet) in length when stretched out, with an element on one end made to be
inserted into the switch and a clip on the other end for attaching to the operator's PFD or wrist. The lanyard is coiled to make its
at‑rest condition as short as possible to minimize the likelihood of lanyard entanglement with nearby objects. Its stretched‑out
length is made to minimize the likelihood of accidental activation should the operator choose to move around in an area close
to the normal operator's position. If it is desired to have a shorter lanyard, wrap the lanyard around the operator's wrist or leg, or
tie a knot in the lanyard.
a - Lanyard cord clip
b - Lanyard decal
c - Lanyard stop switch
Read the following Safety Information before proceeding.
Important Safety Information: The purpose of a lanyard stop switch is to stop the engine when the operator moves far
enough away from the operator's position to activate the switch. This would occur if the operator accidentally falls overboard or
moves within the boat a sufficient distance from the operator's position. Falling overboard and accidental ejections are more
likely to occur in certain types of boats such as low sided inflatables, bass boats, high performance boats, and light, sensitive
handling fishing boats operated by a hand tiller. Falling overboard and accidental ejections are also likely to occur as a result of
poor operating practices such as sitting on the back of the seat or gunwale at planing speeds, standing at planing speeds,
sitting on elevated fishing boat decks, operating at planing speeds in shallow or obstacle infested waters, releasing your grip on
a steering wheel or tiller handle that is pulling in one direction, drinking alcohol or consuming drugs, or daring high speed boat
maneuvers.
While activation of the lanyard stop switch will stop the engine immediately, a boat will continue to coast for some distance
depending upon the velocity and degree of any turn at shut down. However, the boat will not complete a full circle. While the
boat is coasting, it can cause injury to anyone in the boat's path as seriously as the boat would when under power.
We strongly recommend that other occupants be instructed on proper starting and operating procedures should they be
required to operate the engine in an emergency (if the operator is accidentally ejected).
WARNING
!
If the operator falls out of the boat, stop the engine immediately to reduce the possibility of serious injury or death from being
struck by the boat. Always properly connect the operator to the stop switch using a lanyard.
WARNING
!
Avoid serious injury or death from deceleration forces resulting from accidental or unintended stop switch activation. The boat
operator should never leave the operator's station without first disconnecting the stop switch lanyard from the operator.
Accidental or unintended activation of the switch during normal operation is also a possibility. This could cause any, or all, of
the following potentially hazardous situations:
•Occupants could be thrown forward due to unexpected loss of forward motion ‑ a particular concern for passengers in the
front of the boat who could be ejected over the bow and possibly struck by the gearcase or propeller.
•Loss of power and directional control in heavy seas, strong current, or high winds.
•Loss of control when docking.
Keep the Lanyard Stop Switch and Lanyard Cord in Good Operating Condition
Before each use, check to ensure the lanyard stop switch works properly. Start the engine and stop it by pulling the lanyard
cord. If the engine does not stop, have the switch repaired before operating the boat.
Before each use, visually inspect the lanyard cord to ensure it is in good working condition and that there are no breaks, cuts,
or wear to the cord. Check that the clips on the ends of the cord are in good condition. Replace any damaged or worn lanyard
cords.
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Instrumentation
VesselView
Your power package may be connected to a SmartCraft VesselView multifunction display. VesselView is a comprehensive boat
information center that can display information for up to four gasoline or diesel engines. It continuously monitors and reports
basic operating data including detailed information such as seawater temperature and depth, trim status, boat speed and
steering angle, and the status of fuel, oil, water, and waste tanks.
VesselView can be fully integrated with a vessel’s global positioning system (GPS) or other NMEA‑compatible devices to
provide up‑to‑the‑minute navigation, speed, and fuel‑to‑destination information.
VesselView Suite
Refer to your VesselView operation manual for detailed instructions on how to operate this display.
SmartCraft Speedometer, Tachometer, and Digital Gauges
The SmartCraft instrument package augments the information provided by VesselView. The instrument package may display:
•Engine RPM
•Boat speed
•Coolant temperature
•Oil pressure
•Battery voltage
•Fuel consumption
•Engine operating hours
SmartCraft tachometer and speedometer
a - Tachometer
b - Speedometer
c - LCD display
The SmartCraft instrument package also aids in identifying the fault codes associated with the engine audio warning system.
The SmartCraft instrument package displays critical engine alarm data and other potential problems on its LCD display.
For basic operation information on the SmartCraft instrument package and for details on the warning functions monitored by the
system, refer to the manual provided with your gauge package.
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System Link Digital Gauges
Some instrumentation packages include gauges that augment the information provided by VesselView and the SmartCraft
tachometer and speedometer. The owner and operator should be familiar with all the instruments and their functions on the
boat. Have your boat dealer explain the gauges and normal readings that appear for your boat.
The following types of digital gauges may be included with your power package.
System Link digital gauges
ItemGaugeIndicates
aOil pressure gaugeEngine oil pressure
bVoltmeterBattery voltage
cWater temperature gaugeEngine operating temperature
dFuel gaugeQuantity of fuel in tank
SmartCraft System—Power Shut Down
IMPORTANT: When the key switch is turned off, SmartCraft information is communicated to the TDI vessel adapter assembly.
Allow a minimum of 15 seconds for the communication to be completed before turning the battery switch to the off position or
disconnecting battery power. Failure to allow the communication to be completed, may cause an error message to display on
the SmartCraft device at the next engine start sequence. Waiting 30 seconds before removing battery power will ensure the
communication is unrestricted and thorough. To erase the error message, turn the key switch to the off position and wait one
minute before starting the engine.
Power Trim
Power trim allows the operator to adjust the sterndrive angle while underway to provide the ideal boat angle for varying load
and water conditions. Also, the trailering feature allows the operator to raise and lower the sterndrive for trailering, beaching,
launching, low‑speed (below 1200 RPM engine speed), and shallow water operation.
WARNING
!
Excessive trim can cause serious injury or death at high speeds, and single‑ram trim systems do not provide a trim‑out
limiting device or trim indicator. Use caution when trimming with a single‑ram trim system and never trim out beyond the unit's
side support flanges while the boat is underway or at engine speeds above 1200 RPM.
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For best performance trim the sterndrive so that the boat bottom is at a 3–5° angle to the water.
3 - 5
mc79528
Trimming the sterndrive up (out) can:
•Generally increase top speed
•Increase clearance over submerged objects or a shallow bottom
•Cause the boat to accelerate and plane off slower
•In excess, cause boat porpoising (bouncing) or propeller ventilation
•Cause engine overheating if trimmed up (out) to a point where any cooling water intake holes are above the waterline
mc78529
Trimming the sterndrive down (in) can:
•Help the boat accelerate and plane off quicker
•Generally improve the ride in choppy water
•In most cases, reduce boat speed
•If in excess, lower the bow of some boats to a point at which they begin to plow with their bow in the water while on plane.
This can result in an unexpected turn in either direction called bow steering or oversteering if any turn is attempted or if a
significant wave is encountered.
mc79530
Single Engine Trim and Trailer
Single engine applications have a button that can be pressed to trim the sterndrive unit up (out) or down (in).
To raise the sterndrive for trailering, beaching, launching, low‑speed (below 1200 RPM), and shallow water operation push the
trim button to raise the sterndrive to the full up (out) position.
Some controls also have a trailer button that trims the sterndrive to a position suitable for trailer purposes only.
Dual Engine Trim and Trailer
NOTICE
If using external tie bars, raising or lowering the drives independently of each other can damage the drive and steering
systems. If using an external tie bar, raise and lower all drives together as a unit.
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Dual engine applications may have a single integral button to operate both sterndrives simultaneously or may have separate
buttons for each sterndrive.
Some controls also have a trailer button that trims the sterndrives to a position suitable for trailer purposes only.
Power Trim and MerCathode Overload Protection
If an electrical overload on the electrical system occurs, a fuse will open (blow). Find and correct the cause before replacing the
fuse.
NOTE: If you must operate the engine in an emergency, turn off and disconnect all accessories from the engine and
instrumentation wiring if you cannot find and correct the cause for the electrical overload or excessive current draw. Replace
the fuse. If the fuse burns out, the electrical overload has not been eliminated. Further checks must be made on the electrical
system. Contact your Mercury Diesel authorized repair facility.
1.The power trim system is protected from overload by a 110‑amp fuse and a 20‑amp in‑line fuse on the power trim pump.
a - 20‑amp in‑line fuse holder
b - 110‑amp fuse
2.There are several different Quicksilver MerCathode systems available. Each has a fuse connected to the positive (+)
terminal on the controller. If the fuse is open (blown), the system will not operate, resulting in a loss of corrosion protection.
Replace the fuse with one of the same amp rating.
a - MerCathode
b - Red/purple wire
c - Fuse
Warning Horn Signals
When the key switch is turned to the on position, the horn will turn on for a moment as a test to indicate the horn is working.
There are two types of warning horns to alert the operator of an active problem within the engine’s operating system.
1.
Continuous six second beep: Indicates a critical engine condition. Depending on the condition, the Engine Guardian
system may engage and protect the engine by limiting power. You should return to port immediately and contact your
servicing dealer.
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2.
Intermittent short beeps for six seconds: Indicates a noncritical engine condition. This condition does not require
immediate attention. You may continue using your boat, however, depending on the nature of the problem, the engine’s
power may be limited by the Engine Guardian system to protect the engine. You should contact your servicing dealer at
your earliest convenience.
It is important to note that in either of the above scenarios, the horn will only sound one time. If you key the engine off and
restart it, the horn will sound again, one time, if the fault is still present.
A few of the noncritical conditions indicated by the intermittent short beeps for six seconds can be corrected by the operator.
These operator correctable conditions are as follows:
•
Water in the fuel filter. Refer to Maintenance – Water‑Separating Fuel Filter.
•Cooling system (water pressure or engine temperature) problem. Stop the engine and check the water intake holes in the
lower unit for obstruction.
•
Low engine oil level. Refer to Maintenance – Engine Oil.
Engine Guardian System
The Engine Guardian system monitors the critical sensors on the engine for any early indications of problems. Engine Guardian
is functional whenever your engine is operating, so you never have to be concerned about whether or not you are protected.
The system will respond to a problem by sounding the warning horn for six seconds and/or reducing engine power in order to
provide engine protection.
If Engine Guardian has been activated, reduce the engine speed. The problem will need to be identified and corrected. The
system must be reset before the engine will operate at higher speeds. Moving the throttle lever back to the idle position will
reset the Engine Guardian system. If the Engine Guardian system has determined the reset has not corrected the problem,
Engine Guardian will remain activated, limiting the throttle. The problem must be identified and corrected before Engine
Guardian will allow the engine to reach a normal operating RPM.
Controls
Switches
Four‑Position Key Switch
NOTE: The key can only be removed with the key switch in the "OFF" position.
Dual‑Engine Start‑Stop Switch
•
"OFF" ‑ In the "OFF" position, all electrical circuits are off. The engine will not operate with
the key switch in the "OFF" position.
•
"ACC" ‑ In the "ACC" position, any accessories connected to the electrical circuits can be
operated. The engine will not operate with the key switch in the "ACC" position.
•
"ON" ‑ In the "ON" position, all electrical circuits and instrumentation receive power. The
engine can be started with an optional start‑stop switch.
•
"START" ‑ Turn the key to the start position and release to start the engine.
A start‑stop switch is optional equipment. The start‑stop switch works in conjunction
with the key switch. There is one start‑stop switch for each engine. Each button on a
multiengine start‑stop switch functions independently. The key switch must be in the
run position to start a stopped engine with the start‑stop switch. Pressing a start‑stop
switch button when an engine is running will shut down the corresponding engine.
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Bilge Blower Toggle Switch
Operates the bilge blower, if equipped.
Emergency Stop Switch
An emergency stop (E‑stop) switch is used to turn off the engines in an emergency situation, such as a person overboard or a
tangled propeller. When activated, an E‑stop switch interrupts the power supply to the engine and transmission. If the boat is
equipped with an E‑stop switch, the E‑stop switch turns off all of the engines.
Typical E-stop switch
Activation of an E‑stop switch stops the engine, or engines, immediately, but the boat can continue to coast for some distance
depending upon the velocity and degree of any turn at shutdown. While the boat is coasting, it can cause injury to anyone in the
boat's path as seriously as the boat would when under power.
We recommend instructing other occupants on proper starting and operating procedures should they need to operate the
engine in an emergency.
Accidental or unintended activation of the switch during normal operation is also possible, which can cause any or all of the
following potentially hazardous situations:
•Occupants can be thrown forward due to unexpected loss of forward motion, and passengers in the front of the boat could
be ejected over the bow and possibly struck by the propulsion or steering components.
•The operator can lose power and directional control in heavy seas, strong current, or high winds.
•The operator can lose control of the vessel when docking.
Restarting an engine using the key switch or start button after an E‑stop shutdown without first turning the key switch to the off
position for at least 30 seconds will restart the engine but cause fault codes to be set. Unless you are in a potentially hazardous
situation, turn the key switch off and wait at least 30 seconds before restarting the engine or engines. If after restarting, some
fault codes are still being displayed, contact your authorized Mercury Diesel repair facility.
Lanyard Stop Switch
The purpose of a lanyard stop switch is to turn off the engine when the operator moves far enough away from the operator's
position (as in accidental ejection from the operator's position) to activate the switch. Tiller handle outboards and some remote
control units are equipped with a lanyard stop switch. A lanyard stop switch can be installed as an accessory ‑ generally on the
dashboard or side adjacent to the operator's position.
A decal near the lanyard stop switch is a visual reminder for the operator to attach the lanyard to their personal flotation device
(PFD) or wrist.
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The lanyard cord is usually 122–152 cm (4–5 feet) in length when stretched out, with an element on one end made to be
inserted into the switch and a clip on the other end for attaching to the operator's PFD or wrist. The lanyard is coiled to make its
at‑rest condition as short as possible to minimize the likelihood of lanyard entanglement with nearby objects. Its stretched‑out
length is made to minimize the likelihood of accidental activation should the operator choose to move around in an area close
to the normal operator's position. If it is desired to have a shorter lanyard, wrap the lanyard around the operator's wrist or leg, or
tie a knot in the lanyard.
a - Lanyard cord clip
b - Lanyard decal
c - Lanyard stop switch
Read the following Safety Information before proceeding.
Important Safety Information: The purpose of a lanyard stop switch is to stop the engine when the operator moves far
enough away from the operator's position to activate the switch. This would occur if the operator accidentally falls overboard or
moves within the boat a sufficient distance from the operator's position. Falling overboard and accidental ejections are more
likely to occur in certain types of boats such as low sided inflatables, bass boats, high performance boats, and light, sensitive
handling fishing boats operated by a hand tiller. Falling overboard and accidental ejections are also likely to occur as a result of
poor operating practices such as sitting on the back of the seat or gunwale at planing speeds, standing at planing speeds,
sitting on elevated fishing boat decks, operating at planing speeds in shallow or obstacle infested waters, releasing your grip on
a steering wheel or tiller handle that is pulling in one direction, drinking alcohol or consuming drugs, or daring high speed boat
maneuvers.
While activation of the lanyard stop switch will stop the engine immediately, a boat will continue to coast for some distance
depending upon the velocity and degree of any turn at shut down. However, the boat will not complete a full circle. While the
boat is coasting, it can cause injury to anyone in the boat's path as seriously as the boat would when under power.
We strongly recommend that other occupants be instructed on proper starting and operating procedures should they be
required to operate the engine in an emergency (if the operator is accidentally ejected).
WARNING
!
If the operator falls out of the boat, stop the engine immediately to reduce the possibility of serious injury or death from being
struck by the boat. Always properly connect the operator to the stop switch using a lanyard.
WARNING
!
Avoid serious injury or death from deceleration forces resulting from accidental or unintended stop switch activation. The boat
operator should never leave the operator's station without first disconnecting the stop switch lanyard from the operator.
Accidental or unintended activation of the switch during normal operation is also a possibility. This could cause any, or all, of
the following potentially hazardous situations:
•Occupants could be thrown forward due to unexpected loss of forward motion ‑ a particular concern for passengers in the
front of the boat who could be ejected over the bow and possibly struck by the gearcase or propeller.
•Loss of power and directional control in heavy seas, strong current, or high winds.
•Loss of control when docking.
Keep the Lanyard Stop Switch and Lanyard Cord in Good Operating Condition
Before each use, check to ensure the lanyard stop switch works properly. Start the engine and stop it by pulling the lanyard
cord. If the engine does not stop, have the switch repaired before operating the boat.
Before each use, visually inspect the lanyard cord to ensure it is in good working condition and that there are no breaks, cuts,
or wear to the cord. Check that the clips on the ends of the cord are in good condition. Replace any damaged or worn lanyard
cords.
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Remote Control
Remote Control Function
Operation of the throttle and shift are controlled by the movement of the control handle. Push the control handle forward from
neutral with a quick firm motion to the first detent for forward gear. Continue pushing forward to increase the engine RPM. Pull
the control handle back from neutral with a quick firm motion to the first detent for reverse gear and continue pulling back to
increase the engine RPM.
The remote control handle must be in the neutral position to start the engine.
a - Neutral
b - Increase engine RPM
c - Forward gear
d - Reverse gear
Digital Throttle and Shift
Digital Throttle and Shift (DTS) operating instructions are provided in a separate manual. Refer to Mercury Diesel's SmartCraftand DTS Operator's Manual.
Electrical System Overload Protection
!
CAUTION
Failure to protect wiring with an appropriate fuse can damage the wiring and start a fire. When installing any accessories, we
recommend using a Mercury accessory kit. Always use the appropriate fuse to protect wiring.
Fuses
Fuses protect individual circuits from an overload. If an electrical overload occurs, a fuse will burn out. Find and correct the
cause for the electrical overload before replacing the fuse. Always replace a burned out fuse with a fuse that is the same
current rating. Never install a higher current rated fuse.
Identifying a burned out fuse
a - Good fuse
b - Burned out fuse
Two fuses are located on the engine. To access these fuses, remove the two screws securing the engine control module cover.
Be certain to replace an open fuse only with one of the same current rating.
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The remaining fuses are located in the vessel adapter assembly (refer to your boat owner's manual for location) and on the rear
side of the control unit of the individual instrumentation.
Engine control module
a - 25‑amp fuse
b - 15‑amp fuse
Vessel Adapter Assembly (VAA) Fuse Replacement
NOTE: Refer to your boat owner's manual for the location of the vessel adapter assembly (VAA). The key for the VAA was
provided along with the ignition keys.
1.Verify the ignition key is off and the lanyard switch is off.
2.Insert the key into the lock and turn it 1/4 turn to the right to unlock it.
Vessel adapter assembly
a - Locked
b - Unlocked
3.Lift the cover. A decal on the cover identifies components and fuses inside the VAA.
a - Helm power 5‑amp fuse
b - EFP 1‑amp fuse
c - Feature A 1‑amp fuse
d - T.15 5‑amp fuse
e - Feature B 1‑amp fuse
f - Main power 10‑amp fuse
4.Replace the open fuse with a new fuse of the same current rating.
5.Close and lock the cover to prevent water intrusion and an accidental short circuit.
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Identification
Serial Number Decal Placement
Three sets of engine, transom assembly, and sterndrive serial number decal strips are provided with each power package. One
set should be used for each of the following:
•Engine specification decal
•Warranty registration card
•Operation and Maintenance Manual identification page.
Engine specification and serial number decal
Engine Data Label Location
The engine data label is located on top of the electrical box.
a - Engine data label (not seen—on top of the
electrical box)
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Section 1 - Getting to Know Your Power Package
Bravo Sterndrive Serial Number and Identification
The Bravo sterndrive serial number, gear ratio, model number, and bar code are embedded in the ground plate on the port side
of the sterndrive.
Bravo sterndrive information on ground plate
The serial number is also stamped as a permanent reference on the sterndrive casting inside the back cover.
Bravo sterndrive serial number stamping
Bravo Transom Serial Number
The Bravo transom serial number is stamped in the U‑bolt plate of the Bravo transom assembly.
Bravo transom assembly U-bolt plate
a - Transom assembly serial number
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Section 1 - Getting to Know Your Power Package
The serial number is also stamped on the gimbal housing. This is used as a permanent reference for Mercury Diesel authorized
repair facilities.
Gimbal housing with serial
number stamping
a - Transom assembly serial
number
SeaCore Equipped Drives
SeaCore Components and Castings
Mercury MerCruiser SeaCore power packages are equipped with additional stainless steel components and particular
aluminum castings with special coatings. Do not replace SeaCore components with non‑SeaCore. Use only the specified
Mercury MerCruiser SeaCore components and castings on these power packages.
Stainless Steel Fasteners
SeaCore models are equipped with additional stainless steel fasteners to maximize corrosion resistance in saltwater
environments.
Stainless steel fasteners are subject to galling when installed without lubrication. Galling can result in fastener destruction,
improper clamp loads, or both. Galled fasteners may appear to torque properly, but still have incorrect clamp loads.
Apply lubricant 2‑4‑C with PTFE or an equivalent, on the threads of stainless steel fasteners during installation to avoid galling.
Lubricate at least the first 8 mm (1/4 in.) of the threads before installation.
Tube Ref No.
95
2-4-C with PTFEThreads of stainless steel fasteners92-802859A 1
DescriptionWhere UsedPart No.
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Section 1 - Getting to Know Your Power Package
Emissions Information
Exhaust Gas Emissions Certificate (Europe Only)
A tamper‑resistant label is affixed to the engine at time of manufacture. In addition to the required exhaust gas emissions
certificate number, the label lists the engine serial number, engine family, maximum RPM, engine power, and weight. Note that
the exhaust gas emissions certification will not affect the fit, function, or performance of the engines. Boatbuilders and dealers
may not remove the label or the part it is affixed to before sale. If modifications are necessary, contact Mercury Diesel about the
availability of replacement decals before proceeding.
Owner Responsibility
The owner or operator is not to modify the engine in any manner that would alter the horsepower or allow exhaust gas emission
levels to exceed their predetermined factory specifications.
20‑Hour Break‑In Period ....................................... 31
After the 20‑Hour Break‑In Period ......................... 31
End of First Season Checkup........................................ 31
2
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Section 2 - On The Water
Safe Boating Recommendations
To safely enjoy the waterways, familiarize yourself with local and all other governmental boating regulations and restrictions
and consider the following suggestions.
Know and obey all nautical rules and laws of the waterways.
•We recommend that all powerboat operators complete a boating safety course. In the U.S., the U.S. Coast Guard Auxiliary,
the Power Squadron, the Red Cross, and your state or provincial boating law enforcement agency provide courses. For
more information in the U.S., call the Boat U.S. Foundation at 1‑800‑336‑BOAT (2628).
Perform safety checks and required maintenance.
•Follow a regular schedule and ensure that all repairs are properly made.
Check safety equipment onboard.
•Here are some suggestions of the types of safety equipment to carry when boating:
Approved fire extinguishers
Signal devices: flashlight, rockets or flares, flag, and whistle or horn
Tools necessary for minor repairs
Anchor and extra anchor line
Manual bilge pump and extra drain plugs
Drinking water
Radio
Paddle or oar
Spare propeller, thrust hubs, and an appropriate wrench
First aid kit and instructions
Waterproof storage containers
Spare operating equipment, batteries, bulbs, and fuses
Compass and map or chart of the area
Personal flotation device (one per person onboard)
Watch for signs of weather change and avoid foul weather and rough‑sea boating.
Tell someone where you are going and when you expect to return.
Passenger boarding.
•Stop the engine whenever passengers are boarding, unloading, or are near the back (stern) of the boat. Shifting the drive
unit into neutral is not sufficient.
Use personal flotation devices.
•Federal law requires that there be a U.S. Coast Guard‑approved life jacket (personal flotation device), correctly sized and
readily accessible for every person onboard, plus a throwable cushion or ring. We strongly advise that everyone wear a life
jacket at all times while in the boat.
Prepare other boat operators.
•Instruct at least one person onboard in the basics of starting and operating the engine and boat handling in case the driver
becomes disabled or falls overboard.
Do not overload your boat.
•Most boats are rated and certified for maximum load (weight) capacities (refer to your boat's capacity plate). Know your
boat's operating and loading limitations. Know if your boat will float if it is full of water. When in doubt, contact your
authorized Mercury Marine dealer or the boat manufacturer.
Ensure that everyone in the boat is properly seated.
•Do not allow anyone to sit or ride on any part of the boat that was not intended for such use. This includes the backs of
seats, gunwales, transom, bow, decks, raised fishing seats, and any rotating fishing seat. Passengers should not sit or ride
anywhere that sudden unexpected acceleration, sudden stopping, unexpected loss of boat control, or sudden boat
movement could cause a person to be thrown overboard or into the boat. Ensure that all passengers have a proper seat
and are in it before any boat movement.
Never operate a boat while under the influence of alcohol or drugs. It is the law.
•Alcohol or drugs can impair your judgment and greatly reduce your ability to react quickly.
Know your boating area and avoid hazardous locations.
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Section 2 - On The Water
Be alert.
•The operator of the boat is responsible by law to maintain a proper lookout by sight and hearing. The operator must have
an unobstructed view particularly to the front. No passengers, load, or fishing seats should block the operator's view when
the boat is above idle or planing transition speed. Watch out for others, the water, and your wake.
Never drive your boat directly behind a water‑skier.
•Your boat traveling at 40 km/h (25 mph) will overtake a fallen skier who is 61 m (200 ft) in front of you in five seconds.
Watch fallen skiers.
•When using your boat for waterskiing or similar activities, always keep a fallen or down skier on the operator's side of the
boat while returning to attend to the skier. The operator should always have the down skier in sight and never back up to
the skier or anyone in the water.
Report accidents.
•Boat operators are required by law to file a boating accident report with their state boating law enforcement agency when
their boat is involved in certain boating accidents. A boating accident must be reported if 1) there is loss of life or probable
loss of life, 2) there is personal injury requiring medical treatment beyond first aid, 3) there is damage to boats or other
property where the damage value exceeds $500.00, or 4) there is complete loss of the boat. Seek further assistance from
local law enforcement.
Carbon Monoxide Exposure
Be Alert To Carbon Monoxide Poisoning
Carbon monoxide (CO) is a deadly gas that is present in the exhaust fumes of all internal combustion engines, including the
engines that propel boats, and the generators that power boat accessories. By itself, CO is odorless, colorless, and tasteless,
but if you can smell or taste engine exhaust, you are inhaling CO.
Early symptoms of carbon monoxide poisoning, which are similar to the symptoms of seasickness and intoxication, include
headache, dizziness, drowsiness, and nausea.
WARNING
!
Inhaling engine exhaust gases can result in carbon monoxide poisoning, which can lead to unconsciousness, brain damage,
or death. Avoid exposure to carbon monoxide.
Stay clear from exhaust areas when engine is running. Keep the boat well‑ventilated while at rest or underway.
Stay Clear of Exhaust Areas
Engine exhaust gases contain harmful carbon monoxide. Avoid areas of concentrated engine exhaust gases. When engines
are running, keep swimmers away from the boat, and do not sit, lie, or stand on swim platforms or boarding ladders. While
underway, do not allow passengers to be positioned immediately behind the boat (platform dragging, teak/body surfing). This
dangerous practice not only places a person in an area of high engine exhaust concentration, but also subjects them to the
possibility of injury from the boat propeller.
Good Ventilation
Ventilate the passenger area, open side curtains or forward hatches to remove fumes.
Example of desired air flow through the boat:
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Section 2 - On The Water
Poor Ventilation
Under certain running or wind conditions, permanently enclosed or canvas enclosed cabins or cockpits with insufficient
ventilation may draw in carbon monoxide. Install one or more carbon monoxide detectors in your boat.
Although the occurrence is rare, on a very calm day, swimmers and passengers in an open area of a stationary boat that
contains or is near a running engine may be exposed to a hazardous level of carbon monoxide.
1.Examples of poor ventilation while the boat is stationary:
a - Operating the engine when the boat
is moored in a confined space
b - Mooring close to another boat that
has its engine operating
2.Examples of poor ventilation while the boat is moving:
a - Operating the boat with the
trim angle of the bow too
high
b - Operating the boat with no
forward hatches open
(station wagon effect)
Basic Boat Operation
IMPORTANT: Always check to ensure the bilge drain plug is installed before launching the boat.
Duty Cycle Rating
IMPORTANT: Damage caused by improper application or failure to operate the power package within the specified operating
parameters will not be covered by the Mercury Diesel Limited Warranty.
It is the responsibility of the boat manufacturer or the installing dealer to ensure that the power package is properly applied. In
all cases, the power package must be equipped with the gear ratio that allows the engine to operate at wide‑open throttle
(WOT) at the rated engine RPM. The power package must also be applied in accordance with recommendations indicated in
the appropriate applications manual. Use of Mercury Diesel engines in other than the applications indicated by the following
information and in the appropriate applications manual requires written approval from an authorized Mercury Diesel application
engineer.
Pleasure Duty Rating
The pleasure duty rating applies to recreational planing craft used exclusively for pleasure and recreation. Typical applications
include pleasure craft such as sailboats, ski boats, runabouts, speedboats, and other planing hulls. Application must conform to
the Pleasure Craft/Recreational duty cycle shown (EPA Mode Number Cycle 5 Duty Cycle).
Page 2290-8M0145546 eng MAY 2018
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