350gunner

Title says it all. Had AEM, now 1,500 miles later I'm getting a P203D reductant level sensor circuit high. Is anyone else experiencing this? Will the repair be covered by the AEM five year warranty? Vehicle is my 2014 X166/GL350 with only 80K miles.

I am annoyed as I'm supposed to go on a 4,000 miles multi-resort ski/road trip from Connecticut to Colorado and back starting next weekend, and my dealer has no service appointments for two weeks. I think I am going to insist on a loaner, and use the loaner for the road trip. That will give the service department a heart attack. (jk on this last bit, I wouldn't do that to a loaner)

Etienne Lau

I have the same issue, and dealer said it's covered under the AEM.