Can they find out that the car was tuned?
Since I only have 10K miles on a 2010 C63 AMG, I am a little concerned if the dealership would ever figure out that my car was tuned if I turn it in for basic service intervals? Or should I just take my car somewhere else for service?
Is it possible to just buy another ECU and tune it? Or can Mercedes track it like on the CTS-V's that I read about???
https://mbworld.org/forums/c63-amg-w...-question.html
https://mbworld.org/forums/c63-amg-w...e-dealers.html
https://mbworld.org/forums/c63-amg-w...swap-ecus.html
But that doesn't mean it's not possible with further investigation...
I remember awhile back a member on here had an engine failure with a tune and exhaust (headers), the dealer didn't find out he was tuned... But they made him buy a new exhaust system and return the car to stock before replacing the engine...
But that doesn't mean it's not possible with further investigation...
I remember awhile back a member on here had an engine failure with a tune and exhaust (headers), the dealer didn't find out he was tuned... But they made him buy a new exhaust system and return the car to stock before replacing the engine...
But that doesn't mean it's not possible with further investigation...
I remember awhile back a member on here had an engine failure with a tune and exhaust (headers), the dealer didn't find out he was tuned... But they made him buy a new exhaust system and return the car to stock before replacing the engine...
When you have an engine failure, the techs have to submit the claim to headquarters. From there, HQ will have them pull the ME (ECU) for them to evaluate. First thing that they will see is that the ME has been opened. Once that has been decided, there is nothing that MB will do for you. Other than goodwill from the dealership.
Well the guy on here got a new engine and he was tuned according to him.. All he had to buy was a new exhaust system($9000) and they replaced his engine....
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When I took my car in for a MAF sensor issue the tech asked me how long my car had been tuned for. I obviously tried to play stupid but once he asked "I show your top speed achieved as over 190mph" I had to come clean lol
Luckily for me he was cool with it since it had nothing to do with the issue the car was in for.
There you have it from the horses mouth.
What about keeping your stock ECU and having a secondary tuned ECU? This is what I did... Just threw in the stock one for warranty and service...
When I took my car in for a MAF sensor issue the tech asked me how long my car had been tuned for. I obviously tried to play stupid but once he asked "I show your top speed achieved as over 190mph" I had to come clean lol
Luckily for me he was cool with it since it had nothing to do with the issue the car was in for.
With the turbo cars if it throws a code under full throttle and its tuned, engine load will be more than 100%. I've seen as much as 140% engine load. It will store data points when the code was stored such as load, speed etc. usually 20-40 different data points. most are of no concern to the tech during diag though
Last edited by cptdaz; Apr 6, 2012 at 04:12 PM.
Hopefully there shipping process is quick since this is my daily driver....
+1. Additionally they can tell if the ECU has been removed from the vehicle without even checking to see if it's been opened. Too bad no one has come up with a flash that works through the OBD2 port yet.
With the turbo cars if it throws a code under full throttle and its tuned, engine load will be more than 100%. I've seen as much as 140% engine load. It will store data points when the code was stored such as load, speed etc. usually 20-40 different data points. most are of no concern to the tech during diag though





