# Service bulletin P 9\-66C8

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10025923
- Published by NHTSA: 2008\-09\-17
- Manufacturer's number: P 9\-66C8
- Manufacturer's date: 2008\-06\-01
- NHTSA component: STRUCTURE:FRAME AND MEMBERS; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM

## NHTSA's summary

VOLKSWAGEN: 2001\-2005 MODELS: SERVICE AIR PLENUM AREA TO IMPROVE DRAINAGE AND INSTALL IMPROVED POLLEN FILTER SEAL. WATER COULD LEAK INTO THE PASSENGER COMPARTMENT. 2002 MODELS COULD HAVE LEAKS INTO THE BRAKE BOOSTER. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Body and frame, Brakes

## Vehicles listed

- 2001 to 2005 VOLKSWAGEN PASSAT

## Other bulletins for the same vehicles and component

- [Edition117](/bulletins/10242998.md), 2023-10-02, Service bulletin: EXTERIOR LIGHTING; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ELECTRICAL SYSTEM; STRUCTURE. VW Elsa Newsletter
- [Edition116](/bulletins/10242997.md), 2023-10-02, Service bulletin: ENGINE AND ENGINE COOLING; SEATS; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM; ELECTRICAL SYSTEM; STRUCTURE. VW Elsa Newsletter
- [Edition115](/bulletins/10242996.md), 2023-10-02, Service bulletin: STRUCTURE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM; VISIBILITY:POWER WINDOW DEVICES AND CONTROLS; ENGINE AND ENGINE COOLING. VW Elsa Newsletter
- [Edition114](/bulletins/10242995.md), 2023-10-02, Service bulletin: STRUCTURE; VISIBILITY:SUN/MOON ROOF ASSEMBLY. VW Elsa Newsletter
- [Edition26](/bulletins/10242399.md), 2023-09-18, Service bulletin: ELECTRICAL SYSTEM; EQUIPMENT; FUEL SYSTEM, GASOLINE; STRUCTURE. VW Elsa Newsletter
- [TT571011](/bulletins/10238976.md), 2023-07-10, Service bulletin: ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES:DOORS:LOCK; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; STRUCTURE. If a comfort or body control module is replaced during normal diagnosis, make sure the factory mode has been switched OFF. This can be accomplished by selecting the test plan through GFF or through Vehicle Self Diagnosis in adaptation channel 99.
- [TT451301](/bulletins/10238966.md), 2023-07-10, Service bulletin: WHEELS; SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE; BACK OVER PREVENTION; ELECTRICAL SYSTEM; STEERING; STEERING:STEERING WHEEL /HANDLE BAR:YAW/ANGLE SENSOR. After replacing a Bosch 5.7 ABS module, refer to the table below to determine correct module coding value based on vehicle PR codes. Listed login code must be entered under Access/authorization before coding is attempted. After completing coding, G85 steering angle sensor basic settings must be performed before cycling key. To perform G85 basic settings manually in Vehicle self\-diagnosis \(VAS PC\) or Control Module OBD \(ODIS\), start by entering access/authorization code 40168. After code is accepted, turn steering wheel 1 turn left and back to center, one turn right, and then center steering wheel. Select basic settings and enter group 1. Once display changes to ?Sensor OK? or ?Calibration OK?, basic settings have been completed. Cycle key OFF and then back ON. Clear faults to verify repair.
- [TT450903](/bulletins/10238964.md), 2023-07-10, Service bulletin: AIR BAGS; STEERING; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE; ELECTRICAL SYSTEM; STEERING:RACK AND PINION:RACK. If, after replacement of the steering rack, fault code 01309 008 is set in the ABS/ESP module only, follow the test plan in GFF for Driver Steering Recommendation \(DSR\) or channel 3 activation. If the test plan fails to clear the fault, follow the direction below using Vehicle Self Diagnosis in Address Word 44 \- Steering Assistance
- [TT450802](/bulletins/10238963.md), 2023-07-10, Service bulletin: SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; UNKNOWN OR OTHER. Fault code 02543 000 ?Brake Vacuum Sensor no Display? may be encountered in the ABS module. This may be caused by the hydraulic brake boost function \(HBV\) in adaptation value 61 being turned off \(value = 0\). All Passat Wagons \(including 4motion\) and 3.6L equipped sedans with front drive should have this function turned on \(value = 1\). Change the adaptation value and verify the fault has cleared. Additionally, it may be necessary to lock the vehicle and allow the modules to go to sleep to clear the fault.
- [TT450654](/bulletins/10238620.md), 2023-07-05, Service bulletin: SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. To code a Bosch 5.3 ABS control module, use Vehicle Self\-diagnosis to enter the correct coding value from the tables below. Note that the first table is only applicable to 2.8L V6 equipped vehicles WITHOUT a CAN\-Bus. All 1.8L Turbo vehicles and those 2.8L V6 vehicles that are equipped with a CAN\-Bus should use the second table.

JSON: [/v1/bulletins/10025923](/v1/bulletins/10025923)

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