BMW 3128i N42 Timing chain and tension problems !
BMW 318i N42 Timing chain and tension problems
This blazing black BMW 318i , 2003 year vintage fitted with a N42 Valvetronic engine presents itself at the workshop.
The engine would not idle , then it would , rev up and then suddenly loose the plot. A visual inspection revealed many oil leaks, mostly from all the sensors and around the rocker cover.
A strange slapping and rattling noise came from the front of the engine.
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