A6 Quattro Sedan V8-4.2L (BVJ) (2007)
Constant Velocity Joint: Testing and Inspection
Inner Constant Velocity Joint, Checking
Inner constant velocity joint, checking
Joint must be disassembled in order to replace the grease in case of strong soiling, or when journal surfaces and balls must be checked for wear and
damage.
Disassembling
Note:
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Ball hub and joint piece are paired for identification before removing. Do not interchange the track allocation.
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Swing ball hub and ball cage.
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Press joint piece out in direction of - arrow -.
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Press balls out from cage.
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Flip out ball hub from ball cage via running path of ball - arrows -.
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Check joint piece, ball hub, ball cage and balls for small broken off depressions (pitting build-up) and chafing.
Note:
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Excessive circumferential backlash in joint makes itself noticed via tip-in shock. Joint must be replaced in such cases. Flattening and running
marks of the balls are no reason to replace the joint.
Assembling
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Insert ball hub into ball cage via two chamfers. The installation position is at random. Press balls into cage.