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Ron, ASE Certified Technician
Category: Mercedes
Satisfied Customers: 33023
Experience:  ASE Certs.
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2014 s63 car has had a recent update due to the staling

Customer Question

2014 s63 car has had a recent update due to the staling problem ECU?, when updated now the car backfires, the dealer is telling me it doesn't back fire as much now and thats the way the car is designed because of the exhaust system
Submitted: 3 months ago.
Category: Mercedes
Expert:  Ron replied 3 months ago.

Hello, my name is ***** ***** I am a professional here at Just Answer. I have noticed that your question was not getting a response and thought I would see if you still need help with this.I apologize for the delay and I hope I can still assist you with this here.

If its now backfiring and it was not before then I would suggest there is something defective with the programming they did and that should be checked. If in fact the engine is backfiring as you are saying that is not considered normal at all. I would have them recheck there programming .

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