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

23,895

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 22,702 nationwide E-Class listings starting at $1,999.

ZIP:

Search Mercedes-Benz E-Class Questions

Mercedes-Benz E-Class Experts

#1 Tom Demyan
Tom Demyan
Reputation 1,970
#2 dandyoun
dandyoun
Reputation 1,880
#3 bobkat
bobkat
Reputation 1,330
View All

Related Models For Sale

Used Mercedes-Benz C-Class
578 Great Deals out of 30,885 listings starting at $1,500
Used Mercedes-Benz S-Class
151 Great Deals out of 6,418 listings starting at $2,300
Used BMW 5 Series
527 Great Deals out of 14,715 listings starting at $1,375
Used Mercedes-Benz CLS-Class
70 Great Deals out of 2,270 listings starting at $6,786
Used BMW 3 Series
1,118 Great Deals out of 35,564 listings starting at $900
Used Mercedes-Benz M-Class
198 Great Deals out of 5,243 listings starting at $2,955
Used BMW 7 Series
187 Great Deals out of 6,206 listings starting at $3,700
Used Audi A6
124 Great Deals out of 6,823 listings starting at $950
Used Mercedes-Benz SL-Class
67 Great Deals out of 3,123 listings starting at $3,500
Used Mercedes-Benz GL-Class
235 Great Deals out of 4,385 listings starting at $8,777
Used Mercedes-Benz CL-Class
28 Great Deals out of 607 listings starting at $4,988
Used BMW 6 Series
79 Great Deals out of 3,330 listings starting at $4,500
Used BMW X5
409 Great Deals out of 15,976 listings starting at $1,300

Used Cars For Sale

2017 Mercedes-Benz E-Class E 550 Coupe For Sale
32 listings starting at $69,991
2016 Mercedes-Benz E-Class E 550 Coupe For Sale
11 listings starting at $57,901
2015 Mercedes-Benz E-Class E 550 Coupe For Sale
4 listings starting at $41,984
2014 Mercedes-Benz E-Class E 550 Coupe For Sale
22 listings starting at $27,995
2013 Mercedes-Benz E-Class E 550 Coupe For Sale
12 listings starting at $19,999