Help with CEL P2CEF code

[Ryan_929]

just to add my own experience, I bought my car new with 17 miles on it, picked it up a month ago, I believe my car was built around sept 2024 or later.

P2CEF came on around 975 miles on the odo, started the car up and didn't even make it out a block. I was literally taking the car out to finish the 1000 mile break-in. I cleared the code. It has not come back since, I've driven roughly 200miles on it so far. I hope it's a VERY small amount of sand and is just stuck somewhere now and doesn't restrict any flow or get my thermostats stuck.... I can live with it just being stuck somewhere and not flowing around.... I really don't want to have to take it in to the dealer to let them take 2 months to diagnose or have to do a full flush in attempt to get the sand out.

Or even better, hope it was just a fluke, but i doubt it.

If it does come back on, and you have to take it in, I would suggest printing up the Mercedes TSB on the issue and make sure the advisor gets it to the service tech. Mine sat for almost two weeks before they came up with a diagnosis. My part was ordered and received within two weeks. I had the car back the following day so hopefully you’re not looking at a several months experience.

 

[gcmak]

Saw this owner drop another update to their case:

 

[Rainier]

I was happy with the District rep from Lotus. I felt very at ease as he stated he would do what it takes to make it right even extend the warranty.

Did you receive an extended warranty?