Is MB Re-mapping the E-550 Coupe?

275

Asked by Jun 30, 2014 at 10:09 AM about the 2012 Mercedes-Benz E-Class E 550 Coupe

Question type: Maintenance & Repair

Recently I had my 2012 E-550 coupe in the dealership for some warranty work. When it was finished, the service adviser told me that they had performed a software update to my car. He said the update was to allow the E-550 to run ANY grade of gasoline ???? Supposedly so many people had begun using Regular (87 Octane) that MB needed to update the mapping to avoid any "pinging". Immediately my car seemed to have less power and darn sure the MPG dropped very noticeably. And NO, I did not switch grades of gasoline. I continue using Premium. I complained to the service advisor and he said that once a flash is done - it can not be undone.
I would GREATLY appreciate the input from other members who have experienced this upgrade or who have any knowledge about it. And lastly, how can it be undone and my engine returned to its original power, performance and MPG.

3 Answers

24,425

I would speak to the service manager, and also be ready to call MB North America. If they performed the reflash service with out your consent. Try the nice approach first and if that doesnt work, well Im sure you have heard the term "the sqeaky wheel gets the grease". They did alter your cars performance. I would demand they reset the car back to its factory settings.

1 out of 1 people think this is helpful.
275

The dealer said to bring it in tomorrow so they can find out what happened. The flash was called "performance enhancement". Maybe it was flashed for a 350 instead of a 550 - who knows. I will update the forum when I have more info.

275

It was campaign number 2013110002. The specific wording is " MB has determined that the fuel system module software does not correspond to current production configuration". Sure sounds like gibberish to me.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

E-Class

Looking for a Used E-Class in your area?

CarGurus has 19,899 nationwide E-Class listings starting at $699.

ZIP:

Search Mercedes-Benz E-Class Questions

Mercedes-Benz E-Class Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,050
#2 dandyoun
dandyoun
Reputation 1,910
#3 bobkat
bobkat
Reputation 1,370
View All

Related Models For Sale

Used Mercedes-Benz C-Class
456 Great Deals out of 26,531 listings starting at $2,000
Used Mercedes-Benz S-Class
167 Great Deals out of 6,470 listings starting at $2,700
Used BMW 5 Series
490 Great Deals out of 15,929 listings starting at $1,700
Used Mercedes-Benz CLS-Class
53 Great Deals out of 2,231 listings starting at $6,456
Used BMW 3 Series
977 Great Deals out of 31,676 listings starting at $1,000
Used Mercedes-Benz M-Class
178 Great Deals out of 5,177 listings starting at $2,750
Used BMW 7 Series
183 Great Deals out of 6,138 listings starting at $2,999
Used Mercedes-Benz SL-Class
40 Great Deals out of 2,840 listings starting at $3,500
Used Audi A6
157 Great Deals out of 6,410 listings starting at $2,799
Used Mercedes-Benz CL-Class
22 Great Deals out of 586 listings starting at $4,495
Used Mercedes-Benz GL-Class
180 Great Deals out of 3,987 listings starting at $8,495
Used BMW 6 Series
90 Great Deals out of 3,106 listings starting at $6,977
Used Mercedes-Benz G-Class
7 Great Deals out of 1,225 listings starting at $23,500

Used Cars For Sale

2017 Mercedes-Benz E-Class E 550 Coupe For Sale
25 listings starting at $68,993
2016 Mercedes-Benz E-Class E 550 Coupe For Sale
6 listings starting at $69,290
2015 Mercedes-Benz E-Class E 550 Coupe For Sale
3 listings starting at $41,886
2014 Mercedes-Benz E-Class E 550 Coupe For Sale
17 listings starting at $24,795
2013 Mercedes-Benz E-Class E 550 Coupe For Sale
13 listings starting at $20,975

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.