• Increased comfort • Better driveability • More safety
making everyday smoother
VB-FULLAIR
INFORMATION - MANUAL - SERVICE
COMMERCIAL VEHICLE - MOTORHOME
USER MANUAL
2
22 3
Basic information
Vehicle information
Make: _______________________________
Model: _______________________________
Chassis number: _______________________________
Kilometre reading: _______________________________ km
VB identication number:
Kit number:
Production date:
Homologation documentation:
TÜV certicate:
TÜV parts certicate:
TÜV parts certicate, increase in permitted total weight:
General approval:
Lono / oor panel lighting:
Type approval:
Fitting station information
Company name: _______________________________
Address: _______________________________
Postcode/city: _______________________________
Country: _______________________________
Telephone: _______________________________
Employee: _______________________________
Date of tting: _______________________________
Fitted options
Extra control switch
'Extra time' module
Emergency valve kit
Manual operation via handbrake/speed-controlled *
Remote control standard/basic/motorhome *
VB-AutoLevel levelling function (VB-FA 4C only)
Kit for external accessories
VB-AATS, air tank for air suspension
VB-WAM, Wireless Access Module
© 2018, VB-Airsuspension B.V.
All rights reserved. No part of this publication may be reproduced and/or made public by printing,
photocopying, microfilm or any other means whatsoever without the prior written consent of
VB-Airsuspension B.V.
* delete as applicable.
About this user manual 4
System overview 5
Product description 6
Use 6
Safety rules 7
Operation 8
Starting the air suspension system 9
‘Selected axle’ display 9
Commercial vehicle ride height/axle selection 10
Raise commercial vehicle 10
Lower commercial vehicle 11
Reset commercial vehicle to ride-height 11
Motorhome ride-height/axle selection 12
Raise motorhome 12
Lower motorhome 13
Reset motorhome to ride-height 13
Save level you have set 14
Activate stored level 14
AutoLevel 15
OffRoad setting (high driving position) 16
Parking (low driving position) 16
Sport 17
Water tank 18
Forward position 18
Backward position 19
Service 20
Reset system 21
Changing a wheel 22
Tracing faults 23
Remedying faults 26
Maintenance 26
Servicing 27
Notes 30
Notes 31
Better safety and comfort on the road
It’s all under control with VB-Airsuspension systems
VB-FullAir 2C VB-FullAir 4C
VB-FullAir 2C VB-FullAir 4CVB-FullAir 3C
4 5
System overview
Your system is equipped with one of the fully automatic air suspension systems shown below.
In view of the many features and options, the design of your system may differ from that described
here and certain options may not be included.
Dear customer,
Congratulations! Your vehicle is equipped with the fully automatic VB-FullAir suspension system from
VB-Airsuspension B.V.
This user manual tells you everything you need to know about how to use the air suspension system
and how it works. It also includes some important safety precautions and operating instructions. In
view of the many features and options, the design of your system may differ from that described here
and certain options may not be included. To see which options apply to your vehicle, refer to the ‘Basic
information’ on page 3.
We wish you a pleasant ride!
VB-Airsuspension B.V.
About this user manual
Carefully read this user manual all the way through before using the vehicle.
Otherwise, safe and error-free operation cannot be guaranteed.
Observe all safety instructions and warnings in this user manual.
This documentation is an integral part of the product and must be handed over to the purchaser
if you sell the vehicle. Keep it with the vehicle documents.
Meaning of symbols
Commercial vehicle Motorhome
"Air suspension systems from VB-Airsuspension – for greater comfort and optimum handling in all situations."
Strict observance of the warnings may prevent personal injury and/or material damage.
Special instructions to aid clarity and ease of use.
6 7
Product description
VB-FullAir is a fully automatic, electronically-controlled air suspension system for light commercial
vehicles, motorhomes and special vehicles. The electronic control system ensures that the vehicle
maintains the same ride-height in any load situation. The ride-height is controlled by height sensors
mounted between the chassis and the axle. Height control is always active after switching on the
ignition or during the extra time.
Manual operation for raising or lowering the vehicle can be activated in two ways. This depends on
the option supplied to you.
Depending on the available spring travel, the vehicle can be levelled when at a standstill
using the AutoLevel function.
The automatic level control on the VB-Airsuspension system cannot prevent damage to the
vehicle or superstructure due to overload.
Always make sure the vehicle is not overloaded. When using the air suspension system,
overloading is not visible. If you are in any doubt, VB-Airsuspension advises that you weigh the
axles before driving the vehicle.
Use
Safety rules
“Read and follow all the safety instructions. This is important for your own safety.”
Note:
To be able to use the vehicle functions effectively, the various vehicle components need to
be run in for several kilometres. Minor side effects may be experienced when the vehicle
first driven.
For example, the expected levels of comfort may not be immediately apparent or noises may
be heard.
Never drive the vehicle with a setting other than ride height or SPORT, except with caution and
at a speed not exceeding approximately 30 km/h. Otherwise, the chassis or air suspension
system will become damaged.
Before raising or lowering the vehicle when at a standstill:
Secure the vehicle against rolling away.
Make sure there is no possibility of injury or damage to people and property.
Do not depress the brake pedal (if possible) while raising or lowering the vehicle.
This is advisable to relieve the brake and avoid tension in the chassis.
Always use a jack or hydraulic ramp to change a wheel or carry out servicing work.
Before raising one or more axles with a jack or hydraulic ramp, switch off the air suspension
system using the SERVICE button.
The air suspension must not be used to lift wheels off the ground during servicing work
(to change a wheel for example).
Errors and/or faults in the air suspension system can have an undesirable effect on the driving
stability. This may cause the vehicle to sway and/or swing.
When using snow chains, do not allow the vehicle to fall below the ride-height.
Note:
The built-in air suspension system must not be modified.
Risk of damage!
In case of damage or faults that cannot be rectified, press the SERVICE button to
deactivate the system. Contact an approved VB-partner immediately.
The check light comes on to indicate a fault. If this happens, drive extra carefully and at much
lower speed.
Removing the fuses deactivates the system.
The VB-Airsuspension system improves the suspension and automatically controls the height of the
front and rear axles on the chassis.
Improper use can have undesirable consequences. VB-Airsuspension is not liable for any resulting
damage.
PARKING
VB-FullAir 4C
VB-FullAir 2C
VB-FullAir 3C
VB-FullAir 4C
VB-FullAir 2C
28
39
4
10
5
11
7
12
6
1
13
8
39
4
15
5
14
7
12
6
1
8 9
The air suspension system is ready for use when you switch on the ignition.
While driving, the control functions are limited or unavailable. In such situations, the safe
ride-height is controlled automatically.
When raising or lowering with the handbrake on, tension or noises may occur in the vehicle.
If you then release the handbrake, there may be unexpected, slight up-and-down movements.
Starting the air suspension system
1. Switch on the air suspension system
The check light comes on for one second:
The system has started correctly.
LED for the front and/or rear axle comes on:
The vehicle is at the ride height.
The height of the selected axle(s) can be adjusted.
LEDs for the front and/or rear axle and a function button come on:
The selected level is reached.
‘Selected axle’ display
One or both LEDs in the vehicle shown indicate the axle(s) for which manual adjustment is enabled.
Button Summary Speed
1 Check light
2
Sport
> 0 km/h
3
Car Park
< ±
30 km/h
Parking
< ±
30 km/h
4 Vehicle height - up
< ± 5 km/h
5 Vehicle height - down
< ± 5 km/h
6
Selected axle
display
< ± 5 km/h
7 Front - Rear
< ± 5 km/h
Button Summary Speed
8 AutoLevel
9
OffRoad
< ±
30 km/h
10 Vehicle height 1
< ± 5 km/h
11 Vehicle height 2
< ± 5 km/h
12 Service
< ± 5 km/h
13 Forward position
< ±
30 km/h
14 Backward position
< ± 5 km/h
15 Water tank
“Your remote control may not include all functions. Find out what you can do.”
MotorhomeCommercial vehicle
Note:
When raising or lowering, make sure there is enough space above, below and along the
sides of the vehicle.
Operation
10 11
Commercial vehicle ride height/axle selection
1. Switch on ignition, apply handbrake. Vehicle standing still or driving at
< ± 5 km/h.
2. short press: at vehicle height, one or both LEDs come on.
3. long press: axle selection enabled.
Raise commercial vehicle
1. Switch on ignition, apply handbrake. Vehicle standing still or driving at < ± 5 km/h.
2. Keep button pressed until the required level is reached.
The button flashes during raising.
The button is lit continuously when the level is reached.
Alternatively
1. Button - short press. The vehicle is raised to the highest position.
The button flashes during raising.
The button is lit continuously when the highest level is reached.
Ending the function
Button - short press.
Button - long press.
Lower commercial vehicle
1. Switch on ignition, apply handbrake. Vehicle standing still or driving at
< ± 5 km/h.
2. Keep button pressed until the required level is reached.
The button flashes during lowering.
The button is lit continuously when the level is reached.
Alternatively
1. Button - short press. The vehicle is lowered to the lowest position.
The button flashes during lowering.
The button is lit continuously when the lowest level is reached.
Ending the function
Button - short press.
Button - long press.
Reset commercial vehicle to ride-height
From unknown level:
1. Button - long press.
Vehicle is brought to ride height.
“An extra control switch can be fitted - on the rear doors for example.”
3 sec. 3 sec.
3 sec.
12 13
Motorhome ride-height/axle selection
1. Switch on ignition, apply handbrake. Vehicle standing still or driving at < ± 5 km/h.
2. short press: at vehicle height, one or both LEDs come on.
3. long press: axle selection enabled.
Raise motorhome
1. Switch on ignition. Vehicle standing still or driving at < ± 5 km/h.
2. Keep button pressed until the required level is reached.
The button flashes during raising.
The button is lit continuously when the level is reached.
Alternatively
1. Button - short press. The vehicle is raised to the highest position.
The button flashes during raising.
The button is lit continuously when the highest level is reached.
Ending the function
Button - short press.
Button - short press.
Lower motorhome
1. Switch on ignition. Vehicle standing still or driving at < ± 5 km/h.
2. Keep button pressed until the required level is reached.
The button flashes during lowering.
The button is lit continuously when the level is reached.
Alternatively
1. Button - short press. The vehicle is lowered to the lowest position.
The button flashes during lowering.
The button is lit continuously when the lowest level is reached.
Ending the function
Button - short press.
Button - short press.
Reset motorhome to ride-height
From unknown level:
1. Button - short press.
Vehicle is brought to ride-height.
3 sec. 3 sec.
3 sec.
"Lowering the vehicle makes it easier for people to get in and out, etc."
14 15
Save level you have set
1. Switch on ignition. Vehicle standing still or driving at < ± 5 km/h.
2. Press button to select the desired axle.
3. Press button or to set the desired level.
4. Keep button or pressed until you hear a signal.
Activate stored level
1. Switch on ignition. Vehicle standing still or driving at < ± 5 km/h.
2. Button or - short press.
The button flashes while the level is being activated.
The button is lit continuously when the level is reached.
“The AutoLevel function works best when the vehicle is parked on level ground.”
This function can be used for 6 minutes after the ignition is switched off. During this period
the vehicle uses the extra time (option).
However, VB-Airsuspension recommends that you reset the vehicle to ride-height before
driving away. If you omit to do so, the system automatically resets to ride-height to minimise
possible damage.
AutoLevel
With the AutoLevel option, the vehicle is set to a horizontal position (levelled) automatically. This is
only possible if the vehicle is standing still and adequate suspension travel is available.
1. Switch on ignition
2. Switch off the ignition and within 6 minutes briefly press button .
The button flashes during adjustment.
The button is lit continuously for 10 seconds once the vehicle is in the ideal position.
The system then switches off.
End function and reset vehicle to ride-height
1. Switch on the ignition and press button briefly
When buttons or are no longer lit, the vehicle is at the ride height once more.
Alternatively:
After you drive away, the AutoLevel function automatically switches off. The vehicle is reset to the
ride height.
16 17
OffRoad setting (high driving position)
Press button to raise the whole vehicle.
This increases the ground clearance.
1. Switch on ignition. Vehicle standing still or driving at
< ± 30 km/h.
2. Button - short press.
The button flashes during adjustment.
The button is lit continuously when the level is reached.
End function and reset commercial vehicle to ride-height
1. Button or - long press.
End function and reset motorhome to ride-height
1. Button or - short press.
Parking (low driving position)
Press button to lower the whole vehicle.
To remind you, a bleeping sound can be heard while the vehicle remains in the low driving position.
1. Switch on ignition. Vehicle standing still or driving at < ± 30 km/h.
2. Button - short press.
The button flashes during adjustment.
The button is lit continuously when the level is reached.
End function and reset commercial vehicle to ride-height
1. Button or - long press.
End function and reset motorhome to ride-height
1. Button or - short press.
Sport
Press button to lower the whole vehicle while driving.
This provides greater stability at higher speeds.
1. Switch on ignition.
2. Button - short press.
The button flashes during adjustment.
The button is lit continuously when the level is reached.
End function and reset commercial vehicle to ride-height
1. Button or - long press.
End function and reset motorhome to ride-height
1. Button or - short press.
“Your remote control may not include all functions. Find out what you can do.”
18 19
Water tank
The button allows you to tilt the vehicle to the side.
This makes it easier to empty the wastewater tank on vehicles.
1. Switch on the ignition, vehicle standing still.
2. Button - short press.
The button flashes during adjustment.
The button is lit continuously when the maximum tilt angle is reached.
End function and reset motorhome to ride-height
1. Button - short press.
Forward position
The button allows you to tilt the vehicle forwards.
This can be useful if you need ground clearance at the back when manoeuvring.
1. Switch on ignition. Vehicle standing still or driving at < ± 35 km/h.
2. Button - short press.
The button flashes during adjustment.
The button is lit continuously when the level is reached.
End function and reset motorhome to ride-height
1. Button or - short press.
Backward position
The button allows you to tilt the vehicle backwards.
This can be useful for loading and unloading.
1. Switch on the ignition, vehicle standing still.
Button - short press.
The button flashes during adjustment.
The button is lit continuously when the level is reached.
End function and reset motorhome to ride-height
1. Button or - short press.
“With the ‘extra time’ option, the air suspension system can be operated for up to one hour after the
ignition is switched off.”
20 21
Reset system
1. Switch the ignition off and on again.
Alternatively
Remove the fuse (7.5 A) from the fuse box. This is located in the dashboard or under the driver's
seat.
Service
1. The SERVICE button has only one function:
Switching service mode on and off.
Note:
Does the vehicle have a tailgate and/or jacks? Remember: If any of these systems are active
at the same time as the air suspension system, the air suspension system must be
switched off using the SERVICE button.
Switch service mode on and off
1. Press once
The button is lit continuously.
Service mode can be used to switch off the system in order to carry out work on the air
suspension or read out possible faults. To guarantee total safety, we recommend you remove
the fuses from the air suspension system.
7.5 A fuse – for the controller
40 A fuse – for the compressor
“With the ‘emergency valve kit’ option, the air suspension system can be pressurised at any time (see
page 22).”
22 23
Troubleshooting
Functional faults can be diagnosed using the table below. If you cannot correct the fault, contact
your nearest trained VB-Airsuspension partner.
In case of air loss, immediately contact an authorised specialist workshop and drive extra
carefully at a much lower speed (max ± 30 km/h.).
Information about trained partners and the spare parts you might need can be obtained from
VB-Airsuspension Aftersales. They will be pleased to help.
Tracing faults
Fault Possible cause Remedy
Vehicle is tilted
Load was moved after the air
suspension was switched off
Switch on the air suspension,
lower the vehicle and reset the
vehicle height
The remote control does not
respond
Ignition switched off Switch on ignition
7.5 A fuse faulty Replace the 7.5 A fuse
Battery voltage too low Charge the battery
Compressor not working
Ignition switched off Switch on ignition
40 A fuse faulty Replace the 40 A fuse
Battery voltage too low Charge the battery
Compressor does not switch off
Compressor relay faulty Remove 40 A relay
Air loss Consult workshop
Air suspension does not lower
Driving too fast Stick to speed limit
7.5 A fuse faulty Replace the 7.5 A fuse
Air suspension does not raise
Vehicle too heavily loaded Reduce load
Driving too fast Stick to speed limit
7.5 A fuse faulty Replace the 7.5 A fuse
Risk of damage!
Before raising one or more axles with a jack or hydraulic ramp, switch off the air
suspension system using the SERVICE button.
Working on the system can be dangerous!
• Before carrying out emergency inflation, remove the fuses from the fuse box.
• Never inflate the air springs to a pressure of more than 8 bar.
• Consult your conversion station if necessary.
The valves are arranged so that they can easily be matched to the correct side. The valves
are also marked.
In case of faults that are not mentioned in this table or that you cannot rectify yourself,
contact a trained VB-Airsuspension partner.
“The constant ride-height of the vehicle reduces tyre wear and lowers fuel consumption.”
Changing a wheel
The VB-Airsuspension system must not be used to lift wheels from the ground during servicing
work.
Always use a jack or hydraulic ramp to change a wheel or carry out other servicing work.
Remove the 7.5 A fuse and replace it afterwards.
Emergency inflation
In the engine compartment there are two inflation valves on a mounting plate. These are used to top
up the system in case of emergency. If the air suspension system fails, the air spring can be pumped
up manually.
a b
c d
a
Rear right
(black)
c
Front right
(red)
b
Rear left
(green)
d
Front left
(blue)
24 25
Below are the possible error codes and the faults they refer to.
Commercial vehicle Motorhome Basic Description of fault Remedy
(2)
Compressor used too
intensively.
Thermal cutout.
Allow compressor to cool down.
Contact workshop if the fault
keeps coming back.
(2)
Valve block used too
intensively.
Thermal cutout.
Allow valve block to cool down.
Contact workshop if the fault
keeps coming back.
(4)
Maximum permitted load
exceeded.
Reduce load.
(4)
Compressor's maximum working pressure
reached.
Reduce load.
(5)
Battery voltage too low to
raise the air suspension.
Start the vehicle's engine.
(5)
Battery voltage too low. Charge the vehicle's battery.
In view of the many features and options, your remote control may differ from the example
shown. However, the error codes are the same in all cases.
"If your fault does not appear in the table, contact your conversion station (see page 3)."
Basic remote control
On some vehicles the air suspension system has a 'basic remote control'. This remote control has
three fixed modes: highest position, ride height and lowest position.
Check light
1. Activate manual operation:
The check light comes on for one second:
The system has started correctly.
The check light remains lit:
The vehicle is not at ride height.
The check light keeps flashing:
The system is detecting a fault (see error code for solution).
Switch
1. Activate manual operation:
From highest position, press switch briefly downwards:
Vehicle sets itself to ride height automatically.
From lowest position, press switch briefly upwards:
Vehicle sets itself to ride-height automatically.
From ride height, press switch briefly downwards:
Vehicle sets itself to the lowest position.
From ride height, press switch briefly upwards:
Vehicle sets itself to the highest position.
Error code
If the system detects a fault, the CHECK-LED on the remote control flashes. If you then press the
SERVICE button, a combination of lit and flashing LEDs on the various buttons provides an error
code.
LEDs on the buttons are off
LEDs on the buttons are flashing
LEDs on the buttons are lit
26 27
Servicing
Maintenance inspections can be entered below. This allows you to see when the system was inspected
and whether repairs were carried out.
Ask your conversion station to enter the information relating to service inspections.
Date: ____ - _____ - ________ Stamp:
Kilometre reading: _________________ km.
Work carried out:
______________________________________
______________________________________
______________________________________
Date: ____ - _____ - ________ Stamp:
Kilometre reading: _________________ km.
Work carried out:
______________________________________
______________________________________
______________________________________
Date: ____ - _____ - ________ Stamp:
Kilometre reading: _________________ km.
Work carried out:
______________________________________
______________________________________
______________________________________
In case of faults that are not mentioned in this table or that you cannot rectify yourself,
contact your conversion station or a trained partner of VB-Airsuspension.
“Maintaining your vehicle correctly reduces the likelihood of wear and faults.”
Remedying faults
To clear a fault, turn the ignition on and off again. The fault is now cleared. Contact your conversion
station if the fault keeps coming back.
Maintenance
VB-Airsuspension systems are low maintenance. However, regular cleaning and visual inspections
will help to reduce natural wear.
The following components must be checked for wear, leaks and damage during servicing:
Air springs
Air tubes
Shock absorbers
The level of the vehicle may drop gradually if it is not used for long periods. To avoid permanent
deformation and damage to the air springs:
The vehicle should be supported with corner steadies (accessories).
The air springs should be re-inflated with compressed air once a week.
Permitted cleaning agents:
Soap solution
Ethanol
Methanol
Isopropyl alcohol
Not permitted:
Organic solvents
Abrasives
Steam and high-pressure cleaners
Naked flames
28 29
"Keep a record of all services, so you have as full an overview as possible of work done on the vehicle."
© 2018, VB-Airsuspension B.V.
All rights reserved. No part of this publication may be reproduced and/or made public by printing,
photocopying, microfilm or any other means whatsoever without the prior written consent of
VB-Airsuspension B.V.
VB-Airsuspension B.V. is constantly working to develop its products. We trust you will understand
that, for this reason, the scope of delivery, the design, the functionality and the technology may
vary. The content of this manual is a snapshot view of the situation as at the time it was written.
VB-Airsuspension reserves the right to introduce technical changes at any time without warning.
The design of the air suspension system takes into account the maximum permitted weight of the
vehicle. Because the vehicle always adjusts to ride-height regardless of load, overloading is less
visible. The chance of overloading is therefore greater. Never overload the vehicle, as the suspension
system and other components of the vehicle may be damaged as a result. Weigh the vehicle if you
are not sure whether it is overloaded. No claims will be admitted for damage caused by overloading.
If the suspension system develops a fault, it is inadvisable to continue driving in view of the damage
that may result. In exceptional cases, it is possible to continue driving at reduced speed and taking
suitable precautions.
Date: ____ - _____ - ________ Stamp:
Kilometre reading: _________________ km.
Work carried out:
______________________________________
______________________________________
______________________________________
Date: ____ - _____ - ________ Stamp:
Kilometre reading: _________________ km.
Work carried out:
______________________________________
______________________________________
______________________________________
Date: ____ - _____ - ________ Stamp:
Kilometre reading: _________________ km.
Work carried out:
______________________________________
______________________________________
______________________________________
30 31
“You may contact us at any time if you have questions or if anything is unclear. Send an e-mail to
info@vbairsuspension.com.”
Notes
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Notes
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www.vbairsuspension.com
*733105000000EN*
VB-Airsuspension is one of the few European manufacturers producing a wide range of (air) suspension systems. From semi
air suspension and simple reinforced coil spring suspension to full air suspension systems, we offer customers the ideal solution
for a range of applications, such as ambulances, car transporters, motorhomes, 4x4 vehicles and pick-ups. Now you can see
why an increasing number of truck and body manufacturers are incorporating VB-Airsuspension’s systems in their own ranges.
733105000000EN04
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