Car Problem Reports

Mercedes-Benz 300SL Emissions Air Injection Pumps Can Seize Up and Cause Noise/Smoke

 
Mercedes-Benz 300SL Problem
4 Reports
Me Too
Edit

Model Years Affected: 1990, 1991, 1992, 1993

Verified

The emissions air injection pump can seize, causing a loud squealing noise followed by smoke from the drive belt. If the engine is not turned off, the belt will break, turning on the alternator/battery warning light.

Ask a Question