Having an issue passing a smog test? The air pump belt may be the issue.

The nice thing about the air pump belt is that it is the only belt that you can change without removing anything else. The bad thing is that it has to come off to change any of the other belts.

The air pump is located on the lower passenger side of the engine. To replace the belt you will need to loosen the pump itself. Not too difficult and won’t take you over an hour to swap old with new.

Shop for a new belt here!

Follow our install instructions here:
Replacing the Air Pump Belt on your Mercedes Benz

Let us know what questions you have!