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ESS Tuning
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      03-24-2010, 05:30 PM   #1
TTBear's Avatar

Drives: '09 LP560, '14 M235i, '12 X6M
Join Date: Apr 2007
Location: Canada

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Can dealer update ECU with CEL?

Thanks for your input.

I am installing my Akrapovic exhaust tomorrow, and am booked into the dealer on March 30th to have the annual "M" service done. At this service, I am going to have them update the ECU to the latest software, in preparation for my ECU tune (ESS)(If it even makes a difference).

My question is, if I should get the CEL due to the Akrapovic prior to me bringing the car into the service, can they still do the update? This may sound like a stupid question, and if so, apologies. I am thinking that if they can't do the update, then ESS is going to rewrite the software anyways.

thanks for any help!
"Anima sana in corpore sano"
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      03-24-2010, 05:44 PM   #2
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isugoo's Avatar

Drives: 991 C2S
Join Date: Feb 2008
Location: Irvine, CA

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Not sure in Canada but when I had E92 335i, I went to local autozone/advanced autoparts type of chain car parts store to read code and gave the guy $5 under the table to delete the code.
Depends on the dealer, they may not like the fact that they're eliminating the BMW fault code. So I think it's safer bet to delete it off site than the dealership.

PAST: 14 F10 M5 | 11 E70 X5M | 08 E90 M3 | 08 E92 335i | 03.5 E46 M3 | 99 E36 M3
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