Hi I have a BMW F34 2015, N20 engine, with 95K miles. Manufactured 02/15. I currently have a valve cover gasket that needs to be replaced due to leaking. Other than that, the car runs great and has no symptoms of an issue with the timing chain.
Question: since the timing chain has a history of going bad and causing major issues, should I go ahead and replace it as preventative? Since the valve cover gasket needs replacing anyways, a major portion of the tear down is already being done. Should I get 2 birds with one stone? Knowing it’s a major repair and major cost?
Yes and when it's fixed, get rid of that vehicle now before more repair bills come in as it's foreshadowing an endless money pit.
It’s crazy how much it costs to replace a valve cover gasket on a BMW. I get part of it, it’s labor intensive. I’m surprised it failed so young.
IIRC, it’s the plastic guides for the timing chains that fail? Or is it the actual timing chains?
Yeah man, if you plan on keeping a money pit, might as well save some money where you can. And change out the things that make sense.
Based on my research the actual chain good but the plastic guide for the chain goes brittle over time.