Emissions Air Injection Pumps Can Seize Up and Cause Noise/Smoke on Mercedes-Benz 190E

Problem overview

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.

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Emissions Air Injection Pumps Can Seize Up and Cause Noise/Smoke on Mercedes-Benz 190E

Problem overview

Mercedes-Benz 190E vehicles with this problem

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Emissions Air Injection Pumps Can Seize Up and Cause Noise/Smoke on Mercedes-Benz 190E

Problem overview

Mercedes-Benz 190E vehicles with this problem

Repairs related to this problem

General Diagnosis

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