Mercedes CLK 320 1999 V6 3.2L Workshop Manual

mercedesbenz :: Mercedes Benz CLK 320 (208.365)
V6-3.2L (112.940) (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Alarm Module, (Vehicle Antitheft) > Component Information > Service and Repair

Alarm Module: Service and Repair

Component Identification

Removal/Installation, Steps 1 - 2

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Crash Control Module > Component Information > Testing and Inspection

Crash Control Module: Testing and Inspection

Checking Crash Shut-Off Relay (Model 170 w/111.943/973)

Component Identification

1 Disconnect connector on crash shut-off relay.
2 Switch on ignition.

Connect multimeter to pin 3 (c. 15) on crash shut-off relay connector and battery ground W1O. Nominal value: Test step 1 11-14V

­Nominal value not reached:Eliminate fault in lead c. 15.

­Nominal value reached: Perform test step 2.

Connect multimeter to pin 2 (c. 31) of crash shut-off relay connector and positive pole of battery. Nominal value: Test step 2 11-14V

­Nominal value not reached:Eliminate fault in lead c 31.

­Nominal value reached:Replace crash shut-off relay.

End of test.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram Information and Instructions

Emergency Contact Module: Diagram Information and Instructions

Diagram System

Wiring diagrams are divided into systems. The layout of the system diagram contains all components of the system (ie: control modules, sensors, voltagesupply, fuse connection, etc.).

For easier comprehension, some system diagrams may be depicted in multiple articles (Part 1, Part 2, etc.). In addition, the subsequent diagrams mayshow wire leads which direct you, by means of an arrow, to a different "part" within that system.

For example: X4/25 (2) II

The X4/25 (2) indicates that the wire continues to component/connector X4/25, pin 2 and the Roman Numeral II indicates that this component and it'swiring may be found in Part 2 of the diagram for the same component/system. (III would direct you to part 3 and so forth.)

Variations in wiring or componentry which are model specific, or due to engine variations or equipment levels are enclosed by a dashed box.
Phase-in changes in variations are denoted with (1) and (2).

Components/wiring for California vehicles are indicated by the callout U2 in the upper left hand corner of a dashed box. The callout U2 is thenreferenced in the legend (component index) as valid for USA California.

Connector sleeves (Z) are replaced by a twin-connection when applicable.Z1 and Z2 are parallel Z splices with the same voltage potential.Actual cross section of wire may differ from values shown in wiring diagram.Changes in cross section of wire will be shown framed.The information for option variations (i.e. ->95 and 96->) denotes: end of MY 1995 and beginning of MY 1996 (respectively).

Vehicles Identification Numbers (VIN) are valid for vehicles built during main production run.Vehicles built during production phase-in or production start-up may have lower Vehicle Identification Numbers.
Coordination of acronym to function is listed in "Acronyms".

Components which include a slash mark in their description, (ie: N47-1 ASR/SPS control module) indicates that the component is applicable to eitherboth systems or just one of the systems.
Example: N47-1 ASR/SPS control module
Model 129 is not equipped with SPS, therefore on a model 129 vehicle, the control module is applicable only for ASR.
Model 140 is equipped with SPS, therefore on a model 140 vehicle, the control module is applicable for both ASR and SPS.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 14

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Finding the Location of a Connector, Component, Splice or Ground

Abbreviations used within diagrams:X = Connector (example, connector X18)Z = Connector sleeve (Splice)(example, connector sleeve Z49)W = Ground (example, ground W11)

If locations of components, connectors, splices and grounds cannot be found at the system level or component level, they may be found at locations at thevehicle level. See: Locations

Explanations

- Each wiring diagram shows complete system with all of the components related to that system and in addition grounds, circuit fuses, connector sleeves(splices) and wiring connectors up to harness separation points. If a relevant circuit or component is shown in another function group or section, ahyperlink will take you to that specific diagram for related information.

- Arrows on the wiring diagrams designate whether a particular signal is an input or output. Bidirectional signals are shown with two arrows. Grounds donot have arrows.

Option/Variation

- Each wiring diagram may also contain information about variations in the circuitry due to optional equipment or vehicle model differences, clearlylabeled in a dashed box. These variants may have a hyperlink, a system abbreviation or a chassis number/production date range.

- The meaning of a system abbreviation can found in Acronynms Used. The chassis number/production date range is self-explanatory.

- Wiring in vehicles may differ in cross-section and/or color from these shown in the wiring diagram.

Wiring Designation

- Each wire carries a designation showing its cross-sectional area (in square millimeters) and its color. Approximate conversion between cross-sectionalarea and American Wire Gauge (AWG) is as follows:

Area AWG

0.5 20

0.75 18

1.0 16

1.5 14

2.5 12

4.0 10

Color Code

Code Color
BK black

BN brown
BU blue
IV ivory
GD gold
GN green
GY grey
OG orange
PK pink
RD red
VT violet
WH white
YE yellow
SR silver
TQ turquoise

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 15

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Wiring Designation

Components and Switches

a Components not shown completely - indicated by rear line (wavy line).
b Switches are shown in rest (not energized) position.

Component Designation

a Component
b Connector
c Pin number

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 16

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Designation of Wiring Connection

a Component to which wire leads
b Component connector to which wire leads

Fuse Blocks

a Fuse position - power output (Position 15, output A, B, C or D)
b Internal link
c Circuit designation
d Fuse rating in Amperes
e Fuse position - power input (Position 16, input E)
f Fuse number

Abbreviations For Wiring Diagrams

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 17

CLK 320 (208.365) V6-3.2L (112.940) (1999)

4MATIC - AIR

AIC (ARA) - BN

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 18

CLK 320 (208.365) V6-3.2L (112.940) (1999)

BPC - CODE

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 19

CLK 320 (208.365) V6-3.2L (112.940) (1999)

COM - EDR

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 20

CLK 320 (208.365) V6-3.2L (112.940) (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 21

CLK 320 (208.365) V6-3.2L (112.940) (1999)

EDS - FSA

FUG - IND

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 22

CLK 320 (208.365) V6-3.2L (112.940) (1999)

IPS - ME-SFI (ME)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 23

CLK 320 (208.365) V6-3.2L (112.940) (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 24

CLK 320 (208.365) V6-3.2L (112.940) (1999)

MFC - PEC (PMS)

PISI (PLA) - RDS

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 25

CLK 320 (208.365) V6-3.2L (112.940) (1999)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 26

CLK 320 (208.365) V6-3.2L (112.940) (1999)

REST - SN2

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 27

CLK 320 (208.365) V6-3.2L (112.940) (1999)

SOV - TRAP

TRIP (RRE) - YE

Abbreviations of Signal and Circuit Designations

Abbreviation Designation

(+) Plus
(-) Negative
15 Switched positive

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 28

CLK 320 (208.365) V6-3.2L (112.940) (1999)

15 V-E Circuit 15 voltage, feed

15R Switched positive, in ignition position 1, 2 & 3
15X Switched positive, in ignition position 2
30 Battery voltage, positive (continuous positive)
30 FH li Left power window circuit 30
30 FH re Right power window circuit 30
30 V-E Circuit 30 voltage, feed
31 Return lead to battery negative of ground, direct
31 FH li Left power window ground
31 FH re Right power window ground
31 V-E Feed ground
31b Return lead to battery negative or ground through switch or relay, switched negative
49 Turn signal pulse generator input

49a Turn signal pulse generator output
49L Left turn signal lamp
49R Right turn signal lamp
50 Starter control (direct)
53 Wiper motor, input (+)
53b Wiper (shunt)
54 Stop lamp
55 Fog lamp
56 Headlamp
56a Main beam and main beam indicator
56b Low beam
58 Clearance, tail, license plate and instrument lamps
58d Variable instrument / switch illumination
61 Generator indicator
85 Winding end negative or ground
86 Winding start
87 Input
87a First output (NC side)
87b Second output
87c Third output
ABBF - Passenger airbag ­ABBF + Passenger airbag +
ABFA - Driver airbag ­ABFA + Driver airbag +
AE Trailer recognition
AF Audio frequency
AF-L Audio frequency, left channel
AF-R Audio frequency, right channel
AKSE (ACSR) Front passenger seat occupied recognition with automatic child seat recognition (ACSR)
AM Amplitude modulated frequency
AS Towing sensor
AS/HL Left up window drive
AS/HR Right up window drive
AS/RL Left down window drive
AS/RR Right down window drive
ASR-OFF ASR-OFF switch
ASS/IRS Towing sensor/ interior motion sensor
Autom. Ant. Automatic antenna
Ay - Transverse acceleration ­Ay + Transverse acceleration +
B Video signal, blue
B - Battery negative
B + Battery positive
B33 Alarm ATA ALARM tilt sensor
B33 Off ATA OFF tilt sensor
B33 On ATA ON tilt sensor
BBVHL Rear left brake pad wear
BBVHR Rear right brake pad wear
BBVVL Front left brake pad wear
BBVVR Front right brake pad wear
BF Front passenger
BLS Stop lamp switch NO contact
BS Stop lamp switch NC contact

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 29

CLK 320 (208.365) V6-3.2L (112.940) (1999)

CAN (H) CAN (high)
CAN (L) CAN (low)

CD Compact disc
CDW Bus CD changer bus
CDW Masse CD changer ground
CDW Steuerung CD changer control
CDW Versorg. CD changer power supply
D - Generator, negative
D + Generator, positive
D2B IN D2 BUS, input
D2B OUT D2 BUS, output
DBE Roof control panel
DF Generator field

DFA-HL Left rear speed sensor output
DFA-HR Right rear speed sensor output
DFA-VL Left front speed sensor output
DFA-VR Right front speed sensor output
DFHL Left rear speed sensor
DFHR Right rear speed sensor
DFVL Left front speed sensor
DFVR Right front speed sensor
DG + 5 V Pressure sensor voltage supply
DG - Signal Pressure sensor signal
Diag. Diagnosis
E. B/A Soft top bow open limit switch
E. B/U Soft top bow down limit switch
E. B/V Soft top bow locked limit switch
E. D/A Cover open limit switch
E. D/V Cover locked limit switch
E. D/Z Cover closed limit switch
E. R/Z Sun blind closed limit switch
E. U/O Rollover bar up limit switch
E. U/U Rollover bar down limit switch
E. V/A Soft top open limit switch
E. V/V Soft top locked limit switch
E. V/Z Soft top closed limit switch
EDW D ATA data
EDW M Ground
EDW-ZA ATA status display
FBS Parking brake
FM Frequency modulation
FSA - Handsfree system ­FSA + Handsfree system +
G Video signal, green
GAL Speed-responsive volume control
GPS-Ant. Global positioning system antenna
GS Emergency tensioning retractor
HFE Remote trunk lid release
HHS Rear window defroster
HL AV Left rear pressure reduction solenoid valve
HL EV Left rear pressure holding solenoid valve
HR AV Right rear pressure reduction solenoid valve
HR EV Right rear pressure holding solenoid valve
IP1S Actual value potentiometer 1
IP2S Actual value potentiometer 2
IPA Actual value potentiometer drive
IPDK Actual value potentiometer throttle valve
K. T/B Air conditioning temperature switch changeover
K. T/M Air conditioning temperature switch changeover ground
L. U/B Rollover bar operating switch indicator lamp
L. V Soft top operating switch indicator lamp
L/R Left/right
LW Steering angle
M. B/A Soft top bow open solenoid valve
M. B/Z Soft top bow closed solenoid valve
M. D/A Cover open solenoid valve

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Emergency Contact Module > Component Information > Diagrams > Diagram

Information and Instructions > Page 30

CLK 320 (208.365) V6-3.2L (112.940) (1999)

M. MU Deployment solenoid
M. U/H Rollover bar up solenoid valve

M. V/A Soft top open solenoid valve
M. V/BA Soft top bow lock open solenoid valve
M. V/DA Cover lock open solenoid valve
M. V/Z Soft top closed solenoid valve
MBBVVR Right front brake pad wear ground
MDFHL Left rear speed sensor ground
MDFHR Right rear speed sensor ground
MDFVL Left front speed sensor ground
MDFVR Right front speed sensor ground
Mikr. - Microphone negative
Mikr. + Microphone positive

MRA Solenoid valve actuation relay
MRU Solenoid valve voltage supply relay
MV + Solenoid valve positive
NC not connected
NF Low frequency
NF li Left low frequency
NF re Right low frequency
NSL-LL LHS rear fog lamp
NSL-RL RHS rear fog lamp
P. M Pump relay / solenoid valve rollover bow down
Poti (+) Potentiometer (positive)
Poti (-) Potentiometer (negative)
R Video signal, red
Rue. Backup lamp
RW Residual heat supply
S. MW Service ground signal
S.T/P Pump temperature signal
S. T/PM Pump temperature ground signal
SAB Side airbag
SBE Seat occupied recognition
Sig. Signal
SN Lock switch
SN-HD Trunk lid lock switch (voltage-coded)
SN1 Unlocking signal
SN2 Locking signal
SRS Locking signal
SYNC Synchronization
T. S/VL Left front window pushbutton
T. S/VR Right front window pushbutton
T. U/H Rollover bar up pushbutton
T. U/R Rollover bar down pushbutton
T. V/A Soft top open pushbutton
T. V/Z Soft top close pushbutton
Temp - Temperature negative
Temp + Temperature positive
TK Door contact
TKBFT Front passenger door contact
TKFT Driver door contact
TKHT Rear door and tailgate contact
U87 Circuit 87 voltage supply
UB Operation voltage
UMRFP Return pump monitor
USP1 Potentiometer 1 set value voltage supply
USP2 Potentiometer 2 set value voltage supply
USV 1 (VA) Switchover solenoid valve 1
USV 2 (VA) Switchover solenoid valve 2
VL V1 (VA) Front axle pressure increase solenoid valve
VL V2 (VA) Rear axle pressure increase solenoid valve
VLP - Charging pump (negative)
VLP + Charging pump (positive)
vo.li. - Left front negative
vo.li. + Left front positive
vo.re. + Right front positive

vo.re. - Right front negative
VR AV Right front reduce pressure solenoid valve

VR AV Right front pressure reduction solenoid valve
VR EV Right front hold pressure solenoid valve
VR EV Right front pressure holding solenoid valve
W/S Winter / summer program selector
Wake-up Wake-up signal (D2 bus)

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > General Module > Component Information > Description and Operation

General Module: Description and Operation

Purpose

- Control wiper system

- Control headlamp cleaning system

- Control turn signals

- Control fanfare horns

- Read in interior switch (CL) (S6/1s2) and RHR unlocking switch (S6/1s3)

Design

The driver-side signal acquisition and actuation module (SAM) (N10/1) is plugged on to the driver-side fuse and relay module (K40/2) from thebottom.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Global Positioning System Module > Component Information > Technical Service Bulletins > Customer Interest for Global Positioning

System Module: > P-82_85-210 > Nov > 02 > Navigation/GPS System - Various Malfunctions

Global Positioning System Module: Customer InterestNavigation/GPS System - Various Malfunctions

Date: November 25, 2002
Order No.: P-B-82.85/210
Supersedes:
Group: 82

SUBJECT:Model 203, 208, 209, 210, 220 and 230 with COMAND
Navigation / GPS Complaints

If you encounter instances in the above model vehicles equipped with the COMAND system of complaints with Navigation or GPS as indicated below,please perform the related repair procedures.
Navigation Symptoms

- route planner takes too long

- route is not indicated on map

- after destination is entered and confirmed the screen jumps back to the destination input basic menu

- "No route" appears in the display

- "No Navi CD" appears in the display

Do not replace any parts. Inspect CD-ROM for damage or contamination. If CD-ROM is found to be dirty, clean the navigation disc with an approvedCD cleaning solution. Start from the center of the CD and work toward the outside in straight strokes. Do not wipe in a circular motion.
GPS Symtoms

- No GPS reception

- Map not shown for current location.
Before replacing any parts, please perform the following:

- Make sure that the navigation CD-ROM is for the vehicle's current geographical location.

- Vehicle is parked outside in a location where vehicle has an unobstructed view of the sky.

- Place the navigation system in the "Location Map" mode by selecting Info" from main navigation screen or by pressing Info" button.

-

Leave the power on until the system locates itself on the map and latitude and longitude are displayed (this will normally take from 15 to 30 minutesdepending on weather conditions and time of day). If security is of concern, the key may be removed and the COMAND system turned on using the"PWR" key. In this power on mode, the COMAND unit will automatically turn off after 30 minutes and the system should be initialized. The vehiclemay be locked during this time.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Global Positioning System Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Global

Positioning System Module: > P-82_85-210 > Nov > 02 > Navigation/GPS System - Various Malfunctions

Global Positioning System Module: All Technical Service BulletinsNavigation/GPS System - Various Malfunctions

Date: November 25, 2002
Order No.: P-B-82.85/210
Supersedes:
Group: 82

SUBJECT:Model 203, 208, 209, 210, 220 and 230 with COMAND
Navigation / GPS Complaints

If you encounter instances in the above model vehicles equipped with the COMAND system of complaints with Navigation or GPS as indicated below,please perform the related repair procedures.
Navigation Symptoms

- route planner takes too long

- route is not indicated on map

- after destination is entered and confirmed the screen jumps back to the destination input basic menu

- "No route" appears in the display

- "No Navi CD" appears in the display

Do not replace any parts. Inspect CD-ROM for damage or contamination. If CD-ROM is found to be dirty, clean the navigation disc with an approvedCD cleaning solution. Start from the center of the CD and work toward the outside in straight strokes. Do not wipe in a circular motion.
GPS Symtoms

- No GPS reception

- Map not shown for current location.
Before replacing any parts, please perform the following:

- Make sure that the navigation CD-ROM is for the vehicle's current geographical location.

- Vehicle is parked outside in a location where vehicle has an unobstructed view of the sky.

- Place the navigation system in the "Location Map" mode by selecting Info" from main navigation screen or by pressing Info" button.

-

Leave the power on until the system locates itself on the map and latitude and longitude are displayed (this will normally take from 15 to 30 minutesdepending on weather conditions and time of day). If security is of concern, the key may be removed and the COMAND system turned on using the"PWR" key. In this power on mode, the COMAND unit will automatically turn off after 30 minutes and the system should be initialized. The vehiclemay be locked during this time.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Keyless Entry Module > Component Information > Description and Operation

Keyless Entry Module: Description and Operation

Infrared remote control module (N54) up to 11/94, (USA) (J) up to 08/95

The control module is located on the control module panel in the trunk. The electrical connection is provided with an installation and removal aid. Towithdraw, press locking lug and pull up coupling on the cable side.
When replacing the control module or the transmitter, always indicate the locking mechanism number since both parts are matched to one another.

Infrared remote control module (N54) as of 12/94, (USA) (J) as of 09/95

The control module is located on the foot panel in the front passenger's footwell. The 12-pin electrical connection is provided with an installation andremoval device. To remove, press the stop notch and fold the clip over. The 2-pin electrical connection is secured with a locking device. To remove,press the stop notch and push the locking device to one side.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Technical Service Bulletins > Customer Interest for Navigation Module: > P-82_85-210 >

Nov > 02 > Navigation/GPS System - Various Malfunctions

Navigation Module: Customer InterestNavigation/GPS System - Various Malfunctions

Date: November 25, 2002
Order No.: P-B-82.85/210
Supersedes:
Group: 82

SUBJECT:Model 203, 208, 209, 210, 220 and 230 with COMAND
Navigation / GPS Complaints

If you encounter instances in the above model vehicles equipped with the COMAND system of complaints with Navigation or GPS as indicated below,please perform the related repair procedures.
Navigation Symptoms

- route planner takes too long

- route is not indicated on map

- after destination is entered and confirmed the screen jumps back to the destination input basic menu

- "No route" appears in the display

- "No Navi CD" appears in the display

Do not replace any parts. Inspect CD-ROM for damage or contamination. If CD-ROM is found to be dirty, clean the navigation disc with an approvedCD cleaning solution. Start from the center of the CD and work toward the outside in straight strokes. Do not wipe in a circular motion.
GPS Symtoms

- No GPS reception

- Map not shown for current location.
Before replacing any parts, please perform the following:

- Make sure that the navigation CD-ROM is for the vehicle's current geographical location.

- Vehicle is parked outside in a location where vehicle has an unobstructed view of the sky.

- Place the navigation system in the "Location Map" mode by selecting Info" from main navigation screen or by pressing Info" button.

-

Leave the power on until the system locates itself on the map and latitude and longitude are displayed (this will normally take from 15 to 30 minutesdepending on weather conditions and time of day). If security is of concern, the key may be removed and the COMAND system turned on using the"PWR" key. In this power on mode, the COMAND unit will automatically turn off after 30 minutes and the system should be initialized. The vehiclemay be locked during this time.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Navigation Module: > P-

82_85-210 > Nov > 02 > Navigation/GPS System - Various Malfunctions

Navigation Module: All Technical Service BulletinsNavigation/GPS System - Various Malfunctions

Date: November 25, 2002
Order No.: P-B-82.85/210
Supersedes:
Group: 82

SUBJECT:Model 203, 208, 209, 210, 220 and 230 with COMAND
Navigation / GPS Complaints

If you encounter instances in the above model vehicles equipped with the COMAND system of complaints with Navigation or GPS as indicated below,please perform the related repair procedures.
Navigation Symptoms

- route planner takes too long

- route is not indicated on map

- after destination is entered and confirmed the screen jumps back to the destination input basic menu

- "No route" appears in the display

- "No Navi CD" appears in the display

Do not replace any parts. Inspect CD-ROM for damage or contamination. If CD-ROM is found to be dirty, clean the navigation disc with an approvedCD cleaning solution. Start from the center of the CD and work toward the outside in straight strokes. Do not wipe in a circular motion.
GPS Symtoms

- No GPS reception

- Map not shown for current location.
Before replacing any parts, please perform the following:

- Make sure that the navigation CD-ROM is for the vehicle's current geographical location.

- Vehicle is parked outside in a location where vehicle has an unobstructed view of the sky.

- Place the navigation system in the "Location Map" mode by selecting Info" from main navigation screen or by pressing Info" button.

-

Leave the power on until the system locates itself on the map and latitude and longitude are displayed (this will normally take from 15 to 30 minutesdepending on weather conditions and time of day). If security is of concern, the key may be removed and the COMAND system turned on using the"PWR" key. In this power on mode, the COMAND unit will automatically turn off after 30 minutes and the system should be initialized. The vehiclemay be locked during this time.

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Technical Service Bulletins > Page 63

Navigation Module: Locations

GF82.61-P-4109-01A Radio And Navigation Unit, Location

- with CODE (353) Audio 30 APS

Illustrated on model 168

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Service and Repair > APS Radio and Navigation Operating Unit

Navigation Module: Service and RepairAPS Radio and Navigation Operating Unit

Illustrated On Model 129

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Service and Repair > APS Radio and

Navigation Operating Unit > Page 66

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Removal/Installation, Steps 1 - 6

References (WH), Commercially Available Tools

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Service and Repair > APS Radio and Navigation Operating Unit > Page 67

Navigation Module: Service and RepairNavigation Processor (APS)

Component Identification

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Service and Repair > APS Radio and

Navigation Operating Unit > Page 68

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Removal/Installation

References (WH), Commercially Available Tools

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Service and Repair > APS Radio and Navigation Operating Unit > Page 69

Navigation Module: Service and RepairRemove/Install Traffic Data Memory

Component Identification, Part 1

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Service and Repair > APS Radio and

Navigation Operating Unit > Page 70

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Component Identification, Part 2

Mounting versionsNOTE:

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Navigation Module > Component Information > Service and Repair > APS Radio and

Navigation Operating Unit > Page 71

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Removal/Installation, Steps 1 - 10

References (WH), Commercially Available Tools

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Parking Assist Control Module > Component Information > Locations

Parking Assist Control Module: Locations

140

210, Up To June 30, 1999

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Parking Assist Control Module > Component Information > Locations > Page 75

CLK 320 (208.365) V6-3.2L (112.940) (1999)

202, 203, 208, 210 As Of Jul 1, 1999

215, 220

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Parking Assist Control Module > Component Information > Locations > Page 76

Parking Assist Control Module: Description and Operation

- Power supply to the sensors and warning displays

- Processing of ambient signals (trailer/reverse gear recognition, light, vehicle speed signal and Parktronic system switch)

- Actuation of the sensors

- Evaluation of echo journey times

- Generation of data telegrams for the warning displays

- Parktronic system (PTS) self-test

- Storing of system faults in the fault memory

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Parking Assist Control Module: Service and Repair

Removing And Installing Parktronic System (PTS) Control Module

1 Disconnect ground lead from battery
2 Fold back floor covering in passenger footwell
3 Remove foot plate in passenger footwell (1) from vehicle floor
4 Disconnect connector on PTS control module
5 Unclip PTS control module (N62) and remove from guide
6 Reinstall in opposite order

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Diagrams > Diagram Information and Instructions

Relay Module: Diagram Information and Instructions

Diagram System

Wiring diagrams are divided into systems. The layout of the system diagram contains all components of the system (ie: control modules, sensors, voltagesupply, fuse connection, etc.).

For easier comprehension, some system diagrams may be depicted in multiple articles (Part 1, Part 2, etc.). In addition, the subsequent diagrams mayshow wire leads which direct you, by means of an arrow, to a different "part" within that system.

For example: X4/25 (2) II

The X4/25 (2) indicates that the wire continues to component/connector X4/25, pin 2 and the Roman Numeral II indicates that this component and it'swiring may be found in Part 2 of the diagram for the same component/system. (III would direct you to part 3 and so forth.)

Variations in wiring or componentry which are model specific, or due to engine variations or equipment levels are enclosed by a dashed box.
Phase-in changes in variations are denoted with (1) and (2).

Components/wiring for California vehicles are indicated by the callout U2 in the upper left hand corner of a dashed box. The callout U2 is thenreferenced in the legend (component index) as valid for USA California.

Connector sleeves (Z) are replaced by a twin-connection when applicable.Z1 and Z2 are parallel Z splices with the same voltage potential.Actual cross section of wire may differ from values shown in wiring diagram.Changes in cross section of wire will be shown framed.The information for option variations (i.e. ->95 and 96->) denotes: end of MY 1995 and beginning of MY 1996 (respectively).

Vehicles Identification Numbers (VIN) are valid for vehicles built during main production run.Vehicles built during production phase-in or production start-up may have lower Vehicle Identification Numbers.
Coordination of acronym to function is listed in "Acronyms".

Components which include a slash mark in their description, (ie: N47-1 ASR/SPS control module) indicates that the component is applicable to eitherboth systems or just one of the systems.
Example: N47-1 ASR/SPS control module
Model 129 is not equipped with SPS, therefore on a model 129 vehicle, the control module is applicable only for ASR.
Model 140 is equipped with SPS, therefore on a model 140 vehicle, the control module is applicable for both ASR and SPS.

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Instructions > Page 82

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Finding the Location of a Connector, Component, Splice or Ground

Abbreviations used within diagrams:X = Connector (example, connector X18)Z = Connector sleeve (Splice)(example, connector sleeve Z49)W = Ground (example, ground W11)

If locations of components, connectors, splices and grounds cannot be found at the system level or component level, they may be found at locations at thevehicle level. See: Locations

Explanations

- Each wiring diagram shows complete system with all of the components related to that system and in addition grounds, circuit fuses, connector sleeves(splices) and wiring connectors up to harness separation points. If a relevant circuit or component is shown in another function group or section, ahyperlink will take you to that specific diagram for related information.

- Arrows on the wiring diagrams designate whether a particular signal is an input or output. Bidirectional signals are shown with two arrows. Grounds donot have arrows.

Option/Variation

- Each wiring diagram may also contain information about variations in the circuitry due to optional equipment or vehicle model differences, clearlylabeled in a dashed box. These variants may have a hyperlink, a system abbreviation or a chassis number/production date range.

- The meaning of a system abbreviation can found in Acronynms Used. The chassis number/production date range is self-explanatory.

- Wiring in vehicles may differ in cross-section and/or color from these shown in the wiring diagram.

Wiring Designation

- Each wire carries a designation showing its cross-sectional area (in square millimeters) and its color. Approximate conversion between cross-sectionalarea and American Wire Gauge (AWG) is as follows:

Area AWG

0.5 20

0.75 18

1.0 16

1.5 14

2.5 12

4.0 10

Color Code

Code Color
BK black

BN brown
BU blue
IV ivory
GD gold
GN green
GY grey
OG orange
PK pink
RD red
VT violet
WH white
YE yellow
SR silver
TQ turquoise

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 83

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Wiring Designation

Components and Switches

a Components not shown completely - indicated by rear line (wavy line).
b Switches are shown in rest (not energized) position.

Component Designation

a Component
b Connector
c Pin number

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Instructions > Page 84

CLK 320 (208.365) V6-3.2L (112.940) (1999)

Designation of Wiring Connection

a Component to which wire leads
b Component connector to which wire leads

Fuse Blocks

a Fuse position - power output (Position 15, output A, B, C or D)
b Internal link
c Circuit designation
d Fuse rating in Amperes
e Fuse position - power input (Position 16, input E)
f Fuse number

Abbreviations For Wiring Diagrams

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 85

CLK 320 (208.365) V6-3.2L (112.940) (1999)

4MATIC - AIR

AIC (ARA) - BN

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 86

CLK 320 (208.365) V6-3.2L (112.940) (1999)

BPC - CODE

> Relays and Modules > Relays and Modules - Accessories and Optional Equipment > Relay Module > Component Information > Diagrams > Diagram Information and

Instructions > Page 87

CLK 320 (208.365) V6-3.2L (112.940) (1999)

COM - EDR

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Instructions > Page 88

CLK 320 (208.365) V6-3.2L (112.940) (1999)

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Instructions > Page 89

CLK 320 (208.365) V6-3.2L (112.940) (1999)

EDS - FSA

FUG - IND

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Instructions > Page 90

CLK 320 (208.365) V6-3.2L (112.940) (1999)

IPS - ME-SFI (ME)

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Instructions > Page 91

CLK 320 (208.365) V6-3.2L (112.940) (1999)

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Instructions > Page 92

CLK 320 (208.365) V6-3.2L (112.940) (1999)

MFC - PEC (PMS)

PISI (PLA) - RDS