Front Axle - Cracking Noises
87audi02Number: Group:
87-02
40
July 27, 1987
Suspension - Wheels
Applies To: 5000 1984-1986 4000 - 4000 QUATTRO 1982-1986
Subject: Front Axle - Cracking Noises
Cause:
Wheel bearing noise. Loud metallic crack when changing direction or when driving off with steering wheel turned (axial load).
Production Change:
Bearing/housing interference increased (Audi 4000 only).
As of: July 1985 VIN: 8_G_008509
Larger wheel bearings (82 mm instead of 75 mm outside diameter) with greater interference.
As of: October 1985 VIN: 44_G_031000 85_GA900359
Service Solution:
In case of persistent complaints, install tapered roller bearing.
P/N 321 498 625D - Audi 4000 P/N 443 498 625 - Audi 5000 with 75 mm outside diameter
NOTE: DO NOT coat bearing seat with Molycote.