engine rattle - PeachParts Mercedes-Benz Forum

marcmarullo · #1 08-31-2007, 05:20 PM

I just got a 1979 w123 300D with 187,000 miles. Sometimes when I accelorate a rattling sound comes from the engine somewhere. When I asked a mechanic if that was the timing chain he said that the timing chains on these usually don't ever wear out. Before I take it in, does anyone know what might cause this noise?

MattBelliveau · #2 08-31-2007, 06:33 PM

Quote:

Originally Posted by marcmarullo

I just got a 1979 w123 300D with 187,000 miles. Sometimes when I accelorate a rattling sound comes from the engine somewhere. When I asked a mechanic if that was the timing chain he said that the timing chains on these usually don't ever wear out. Before I take it in, does anyone know what might cause this noise?

Check your air cleaner mounts. They are littile block-style bushings that go between your air cleaner housing (that big, round thing just onto the passenger side) and your engine.