4Rock

So my shop says the timing covers are leaking and need to be replaced right away. What do you guys think? 2015 mercedes benz e400 4matic

juanmor40

Get a small brush/rag wet with BrakeKleen. clean those areas well, and monitor it. If it comes back within a week/month schedule the repair (if you are not a DIY)

Unless you are changing the chain tensioners, or VVT gears, leave that alone. They can create more problems than fixing a non-issue.

My 2014 W212 @99K miles had a similar look around 80K, I cleaned that area, and nothing so far. The engine environment is not a surgery room, and dust starts to stick over time.

If it is oil, you will see it coming back with fury.

NOTE: while there, take a chance and give the engine a bit of TLC. A microfiber towel to at least remove the high level dust.