Body - Eliminating Wind Noises
Group: 50Number: 94-01
Date: October 20, 1994
Subject:
Eliminating wind noises
Models(s):
Passat 1995 m.y.
The following procedures address the most common complaints of excessive wind noise.
Before starting any repair procedure, isolate the area of complaint by conducting a test drive.
Use the procedures necessary to correct those areas identified during the test drive.
Caution!
Part numbers are for reference only. Always check with your Parts Department for the latest information.
Wind noises, eliminating
Front doors at A-pillar
Resonance can occur at the outer/lower window guide vulcanization point.
Door Window Frame And Seal:
- Pull off cover in front corner of door frame.
- Pull off inner window guide -1-.
- Apply felt strip -2- (size 40 x 10 x 3 mm) Part No. 533 863 288 A, to area indicated.
Front doors with power windows
When the door windows are lowered, the door outer panel is pushed outward or the window slot seal is lifted up. The result is a roaring noise at the window slot.
Check the setting of the door window and adjust if necessary.
- Remove door trim panel and vapor barrier.
Window Lifter Adjustments:
- Front of window -1- must be raised 2.0 mm from window regulator -2- and sit properly at the rear (arrow)
- Rear securing point -3- of lower guide rail must be set downward to the stop.
- Window must be aligned parallel to window guide.
Note:
The window must not be tilted forward as it could then become derailed from the window guide.
Eccentric disc on window regulator, adjusting
- Set windows to half-open position.
Adjusting Eccentric Disc on Window Regulator:
- Loosen eccentric securing bolt slightly through assembly hole (arrow).
Installing Spacers On Window:
- Fabricate two spacers -1-, 7.0 mm high x 40 mm long, and secure onto window with adhesive tape at the prescribed positions.
- Raise window enough so spacers contact evenly in the window guide.
- Tighten eccentric securing bolt slightly.
- Turn eccentric disc to the right as far as the stop.
- Tighten securing bolt
^ Tightening torque: 10 Nm (7 ft lb)
Front doors at B-pillars
Checking Window Angle:
The window is tilted forward resulting in an insufficient seal to the outer window guide at the B-pillar (arrow).
- Check setting of window as described under "Front doors with power windows".
Adjust window as necessary.
- If window cannot be adjusted as described, remove window regulator.
Modifying Regulator Guide:
- Bend rear securing point -1- of the lower guide rail up about 1.0 mm.
- Reinstall window regulator and adjust window as necessary.
Doors - warped window guides
Checking Window Seal:
Loud airflow and resonance noises, especially at the B and C-pillars.
- Replace window guides -1-.
Doors - window guides not opened out
Checking Widow Fit:
Window guides that are not sufficiently opened out can transmit noises due to gaps (arrows) between window and guide.
- Open out window guides evenly.
Windshield
Checking Windshield Installation:
Too high in opening
A windshield placed too high in the opening can cause loud airflow noises.
- Remove windshield.
- Install windshield and press in until frame -1- is flush with roof -2- and A-pillars -3-.
Gap between glass and frame
Loud roaring noises are produced if the windshield frame -1- is not evenly seated on the windshield glass.
- Seal gap (arrow) with sealant, Part No. D 001 007 or equivalent.
Roof antenna
The modified position of the foot of the antenna can result in increased airflow noise at the antenna rod.
- Replace antenna with Part No. 1 HO 035 503 0.
"Howling" wind noise
These noises start at approx. 50 mph (80 km/h) and are presumed to be coming from the area behind the rear doors.
Installing Floor Panel Plugs:
- Replace missing oval plugs (arrow) in floor panel. Part No. N 904 028 01.
Caution!
Part numbers are for reference only. Always check with your Parts Department for the latest information.