15-74
Hydraulic valve lifters, checking
Special tools and equipment
Feeler gauge
Wood or plastic wedge
Note:
Hydraulic valve lifters cannot be adjusted or
repaired.
Irregular valve noise during starting is normal.
Test sequence
- Start engine and let run until coolant
temperature has reached approx. 80 C.
- Increase engine speed to about 2500 rpm for 2
minutes (perform road test if necessary).
Note:
If the irregular valve noises stop but recur
repeatedly during short journeys, a new oil
retention valve must be fitted. Oil retention valve
location: In oil filter bracket -Item 6 -, Page
Pa
ge 39 of 58 Valve
gear, servicin
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11/21/2002 htt
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pair&id=AUDI.B5.GE06.15.2
