I have a B Class B180 petrol 2009 W245. Every time you accelerate, the engine/gearbox makes a rattle no matter if the engine is cold or warm. It's a CVT. Any idea what it could be?
It could be something as simple as a loose heat shield or a bearing / pulley / idler / tensioner on the alternator / a/c drive belt or a cam chain tensioner problem......impossible to diagnose remotely sorry.
You could post up a video of the noise but best option is to find a local mechanic to take a look.
It could be something as simple as a loose heat shield or a bearing / pulley / idler / tensioner on the alternator / a/c drive belt or a cam chain tensioner problem......impossible to diagnose remotely sorry.
You could post up a video of the noise but best option is to find a local mechanic to take a look.