CEL p0238
Thread Starter
Member
Joined: Dec 2017
Posts: 178
Likes: 29
2015 c300
CEL p0238
I removed the dinantronics piggyback remover today and after I started the car, I got a check engine light on that read p0238 turbocharger/ supercharger boost sensor A circuit high. Anyone have any idea what that means? Is is tested to the piggyback?
Super Member
Joined: Mar 2018
Posts: 740
Likes: 135
From: Westchester County, NY
‘15 C300 4M Sport, ‘20 GLC300
I never got that code after removing the Dinan Piggyback. When was the last time you removed it? Is the car running normal? I would definitely check the connection again. Maybe driving around will fix the CEL.
Thread Starter
Member
Joined: Dec 2017
Posts: 178
Likes: 29
2015 c300
Looks like the CEL went off. Now the auxiliary battery malfunction sign is blinking..so many headaches from this vehicle. Gotta figure out if the CEL and this aucillary batter are related / how to change out the auxiliary battery..I feel like this’ll be a feast for the dealership if I bring this in
Senior Member
Joined: Jun 2015
Posts: 256
Likes: 26
From: Dutchess County, NY
2016 C300 4matic
I think the dealership charged me around $250 to replace the aux battery this past winter. I'll see if I can find the receipt and let you know. They refused to warranty it even though the car was only 2.5 years old.
Thread Starter
Member
Joined: Dec 2017
Posts: 178
Likes: 29
2015 c300
Thats strange, my girlfriend has the same car as me but still had factory warranty and they covered. Unfortunately I’m out of factory warranty
Newbie
Joined: May 2018
Posts: 14
Likes: 5
w205
I had a CEL code within 2 days of installing my Dinantronics. P0236 Turbocharger/Supercharger Boost Sensor "A" Circuit Range/Performance. That is the sensor the Dinantronics messes with to get the computer to up the boost. The messing of the signal by the Dinantronics piggy back was supposed to not be detectable by the computer but I think its pretty clear our cars' can see there is something messing with the sensor reading.
Thread Starter
Member
Joined: Dec 2017
Posts: 178
Likes: 29
2015 c300
I had a CEL code within 2 days of installing my Dinantronics. P0236 Turbocharger/Supercharger Boost Sensor "A" Circuit Range/Performance. That is the sensor the Dinantronics messes with to get the computer to up the boost. The messing of the signal by the Dinantronics piggy back was supposed to not be detectable by the computer but I think its pretty clear our cars' can see there is something messing with the sensor reading.
did it go away / are you still using the piggyback?
Last edited by Elbandito; Aug 8, 2019 at 04:21 PM.
Trending Topics
MB World Stories
The Best of Mercedes & AMG
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
Member
Joined: Oct 2017
Posts: 188
Likes: 3
From: CA
W213 E63
Newbie
Joined: May 2018
Posts: 14
Likes: 5
w205
Within a week. It was fine when I was moderate on the throttle. The light came on when I was heavier on the throttle and in manual shift. 2018.
