Safety instructions

Safety precautions when working on vehicles with a start/stop system WARNINGAll bolts and nuts must be fully tightened according to specifications before the vehicle is driven on publi ...

Leaks at shock absorbers

Shock absorbers are often replaced because of externally visible leakage. Inspections on the test rig and in the vehicle have shown that in the majority of cases this replacement is not justified. ...

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Self-aligning bearing and rubber bearing of the roller rocker arms: Visual inspection for damage
NOTICE This test must be performed with the vehicle standing on its wheels. Make sure that the dust protective caps -arrow- are not damaged and are properly fitted. Check the rear side of th ...