When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
It seems the single-digit temps we've been having here in southern Wisconsin have finally tripped the AdBlue heater circuit error on Moose, setting the CEL ablaze and my BlueDriver scan tool confirmed the code.
Since he's had the AEM work done and is covered under the extended warranty post-AEM work, I've made him an appointment for next week at the local MB stealership in Milwaukee.
With the CEL only bring tripped today, there is no reduction in power just yet (no limp mode) but I'm sure it will follow if the system can't properly do regens. It will sit in the garage until I take it in for its appointment.
Also hoping they'll have a loaner vehicle available, because the repair work involves complete replacement of the AdBlue tank which could take several hours. I'll update this thread once I know more.
2014 GLK350 base model (active) ; 2001 E320 base (retired); 2001 Wrangler soft-top
"he" (?) Might not have a prob if a "she" (joking).
Wow - single digits temps - can't imagine that, having born/lived in south-central Texas for over 66 years. We experienced a low of 16°f early Wed morn and a pipe burst in the attic, which I fixed yesterday.
Anyway, fingers crossed the MB dealership gets you back on the road quickly. Thanks for offering the experience and updates - will be good for folks who see the same problem!! 👍
1/25/24 Update: Took Moose to get official diagnosis at MB dealer, they confirmed it's the AdBlue tank heater. They have to order the parts which will be in over the weekend. Unfortunately they had no loaner available, so I drove it back home today. Still no limp mode but I told them I wanted to avoid driving it with the CEL on, since you never know when the ECU says "Nein, zat is far enuff!" and turns it into a turtle.
So, it's rescheduled for Monday morning and this time they will have a loaner for me, they promised...
The service guy said they do have heater replacement parts, so they won't be swapping the current tank with a new one. I'm curious about that because all of the repairs for this issue were supposedly new AdBlue tank assemblies. I guess we'll see when I get the receipt. Also, they did confirm it's covered under the AEM.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
