Mercedes Air Pump - Mercedes Benz Air Pump Tech Tips

Your Mercedes Air pump may also be known as a secondary air pump. This is because your Mercedes engine is technically the primary air pump. The secondary Mercedes air pump is designed to pump fresh air into your exhaust system. This heats up the catalytic converter in order to maintain proper engine emissions for proper operation.

A faulty air pump can lead to poor emissions and possibe need to replace your catalytic convert and sensors. The two most common reasons for air pump failure comes from either the Mercedes air pump bearings ceasing or when moisture builds up inside the air pump due the car sitting for long periods of time.