SneakerHead

Intriguing, however the majority of contemporary vehicles include some kind of communication capability with a central system. If it works on one, it is likely to function on others as well.

I would verify the guides and assess the chain's elongation before to purchasing a tensioner, particularly one from MB priced at $300. I encountered similar problem a few years back. I purchased a new tensioner, nevertheless the rattling persisted. Replaced the timing chain, which resolved the issue. Neither the new nor the old tensioner exhibits any rattling. At that time, the automobile had 70,000 kilometres.