Hello all..

I have a 300SDL that is about to hit 300,000km (180,000 miles) and I don't think the motor mounts have ever been changed. The bills from the original owner don't show them being changed, and I haven't done them either. I bought the car at 225,000km (135,000 mi).

When do I need to replace these and is there any way to know if they're bad? I don't get any shaking at traffic lights but assume there is a useful lifespan to these things. Do I also need to change the engine shock at the same time?

Thanks!
Neal

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