Just replaced the MAF on my '96 E320 and it's running smooth again. Will the CEL and Check Electronics reset automatically after driving for a while? If not, how do you clear these messages? Thanks.

Mark

 

You can disconnect the battery for 15 minutes and that should clear it or have autozone read the codes and clear them for free. The battery disconnect in in the footwell below the rear seat on the side that the battery is installed. Pull the plastic cover off and you will see a nut that holds the main ground connection on. The car will relearn everything in about 50 miles of driving. The fault should clear on it's own in about that same time or after a few engine start cycles.

 

Disco'd the battery for 10 minutes. Reconnected and the CEL is fine now. Thanks for the info!