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I have tested the wiring and contact resistance. Everything is ok. 0.4 to 0.5 ohm in all PDs Audi says 0.5-0.8 Ohm

Block 18 is all 0 0 0 0

The Camshaft seems at bit worn on cylinder 3 and there is sometimes a bit valve noise. Sounds like a leaking exhaust, only sometimes. The engine has a deep sound from cylinder 3-4 area hearable without the cylinderhead cover mounted and engine idleling.

All hydralic lifters seems easy to twist when camshaft is not pressing them down.

Should i replace the camshaft and lifters before driving the car?
Are one of the lifters bent,( on top centre) common on cylinders 3/4. usually caused by wrong oil?
 
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