Head bolts - VIN
-head bolts affected?
- Done 220k km. Camshaft change/adjustment is must? Had one morning ticking sound which disappeared.
recently did random diagnostic : showed cylinder bank 1-2 running lean, I deleted it and then nothing appeared later, intake manifold issue?
Took it to MB dealer in Norway.. I feel they don't know much about these car. Have to open the engine and inspect to diagnose those issue?



