Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Cruise Control Repairing - Manual Update Info (GROUP 96, NO. 95-08)
Reference number: GROUP 96, NO. 95-08
CRUISE CONTROL REPAIRING - MANUAL UPDATE INFO
TECHNICAL SERVICE BULLETIN
CRUISE CONTROL, REPAIRING
Model(s): 1996-on Audi A4
Group: 96 - Lights - Interior, Air bag
Bulletin No.: 95-08
Date: October 2, 1995
SERVICE INFORMATION
This Technical Bulletin is an update to the Repair Manual and contains all necessary repair information for repairing the Cruise Control system.
CRUISE CONTROL, REPAIRING
CRUISE CONTROL CONTROL MODULE, REMOVING/INSTALLING
- Remove glove compartment.
- Disconnect Control Module -1- by removing Phillips screw -3- from speed nut -2-. See Fig 1 . Tightening torque: 3 N.m. (28 in-lb).
- Remove Control Module and disconnect harness connector.
VACUUM SERVO LINKAGE ADJUSTING (6-CYLINDER)
- Throttle at idle position (engine running at idle speed), adjust linkage with adjuster nut -1- to achieve a clearance of approx. 0.5 ... 1 mm (.019 to .039 in.) between the bushing and stop plate -2-. See Fig 2 .
VACUUM SERVO, REMOVING/INSTALLING
- Remove linkage.
- Remove vacuum hose.
- Remove servo unit from bracket. See Fig 3 . Tightening torque:
25 N.m (18 ft-lb).
VACUUM PUMP, REMOVING/INSTALLING
- The vacuum pump is installed below the ABS unit, and can be removed from the outside after removing the left wheel opening moulding.
- Remove retaining nut -3- 5 N.m (44 in-lb) and pull out pump from the wheel opening. See Fig 4 .
- Pull vacuum pump -1- upward out of bracket -2- complete with rubber grommets. See Fig 4 .
- -4- hose to servo unit. See Fig 4 .
STEERING COLUMN SWITCH/CRUISE CONTROL SWITCH, REMOVING/INSTALLING
- Removing and installing steering column switches see Repair Manual page 94-20.
CLUTCH PEDAL VENT VALVE -1-/BRAKE PEDAL VENT VALVE -2-, REMOVING
- Remove lower instrument panel cover, left.
- Remove wire connector and vacuum hose from vent valve.
- Use special tool VAG 2041 or equivalent (locally available) to remove valve, press out vent valve through bushing. See Fig 5 .
CLUTCH PEDAL VENT VALVE -1-/BRAKE PEDAL VENT VALVE -2-, INSTALLING/ADJUSTING
- Insert vent valve into bushing by hand.
- Using a 10 mm nut driver, press in vent valve through bushing until seated. See Fig 6 .
- To adjust vent valve, pull back clutch or brake pedal to stop.
CRUISE CONTROL VACUUM SYSTEM, CHECKING
- Remove vacuum hose from vacuum pump.
- Press in diaphragm of servo unit.
- Plug disconnected hose.
The diaphragm in the servo unit must remain in the same position and must not move. In this case the system is airtight.
If the diaphragm moves back to its original position, there is a leak in the system.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.