CPO Warranty denied, previous owner tuned ECU
Again OP should get the VMI to see when the status 8 was registered and if it’s before the CPO purchased, then dealer/MBusa will rectify it.
If the status 8 was registered after CPO purchased and OP is sure it was not tuned during his 2-3 months ownership, contact MBusa and explain the situation, dealer can do a scan to see when the first boost, HP and TQ was increased outside of the factory specs. and work with the dealer and MBusa to fight this.
Good luck.
I would get MBusa involved first before going back to the dealer.
From the VMI, it will show when the status 8 was placed, from there, you can meet with the GM of the dealer you purchased it from which will show that you purchased the vehicle “ after “ the status 8 was placed on your CPO E63.
No lawyer is needed. Point this out to the dealer and they can either ask MBusa remove the status 8 or contact MBusa directly and provide proof for the above and they can do it directly.
The dealer will need to flash the ECU to factory specs., before the status 8 can be removed.
Good luck and don’t worry about it. Enjoy the time you have it with the tune.
luckily my lease was 50k+ miles so i was just going to return it with no warranty anyway...
i wonder if they’ll refuse to take it back and force me to buy the car... i wonder if i’d find a dealer to help me out and give me a good deal on trade in given the situation. how far off could the lease residual and market value be at lease termination?
The Best of Mercedes & AMG
luckily my lease was 50k+ miles so i was just going to return it with no warranty anyway...
i wonder if they’ll refuse to take it back and force me to buy the car... i wonder if i’d find a dealer to help me out and give me a good deal on trade in given the situation. how far off could the lease residual and market value be at lease termination?
https://mbworld.org/forums/w212-amg/...-story-mb.html
https://mbworld.org/forums/w212-amg/...-story-mb.html
say i was going to buy or lease a new bmw m5
i’d bring my e63s there, i’d have 2-3 lease payments left, and i’d negotiate with the bmw dealer to pay them/roll them into the price of my m5/take the car and let them find the easter egg i left them when they try to deliver the car to mercedes (or if they just sell it)
just an example of how i’m thinking of dodging mercedes
say i was going to buy or lease a new bmw m5
i’d bring my e63s there, i’d have 2-3 lease payments left, and i’d negotiate with the bmw dealer to pay them/roll them into the price of my m5/take the car and let them find the easter egg i left them when they try to deliver the car to mercedes (or if they just sell it)
just an example of how i’m thinking of dodging mercedes

maybe i’ll dump it at a high volume honda/kia dealership where they do lots of lease pullaheads every day if mercedes gives me trouble. no way it crosses their mind to check “did this car that is already out of warranty due to miles have nitpick warranty politics with the manufacturer during its lifetime”




OP - I sure hope you get this resolved and they buy you a NEW ecu .. there may be a date stamp on this ecu for the tune overwrite and they'll have to send this current ecu to Germany likely to find out unless they've learned how to locally facilitate acquiring this data ... which I'm not sure why they haven't since thousands of local tuners can do it
Nothing wrong with "tuning" as long as you understand the risks involved and consequences you may suffer.
You just can't have your cake and eat it too in all situations.
My dealer helps a lot, I have a long history with them but I understand that when the **** really hits the fan, I will be on my own.......
From the VMI, it will show when the status 8 was placed, from there, you can meet with the GM of the dealer you purchased it from which will show that you purchased the vehicle “ after “ the status 8 was placed on your CPO E63.
No lawyer is needed. Point this out to the dealer and they can either ask MBusa remove the status 8 or contact MBusa directly and provide proof for the above and they can do it directly.
The dealer will need to flash the ECU to factory specs., before the status 8 can be removed.
Again OP should get the VMI to see when the status 8 was registered and if it’s before the CPO purchased, then dealer/MBusa will rectify it.
If the status 8 was registered after CPO purchased and OP is sure it was not tuned during his 2-3 months ownership, contact MBusa and explain the situation, dealer can do a scan to see when the first boost, HP and TQ was increased outside of the factory specs. and work with the dealer and MBusa to fight this.
maybe i’ll dump it at a high volume honda/kia dealership where they do lots of lease pullaheads every day if mercedes gives me trouble. no way it crosses their mind to check “did this car that is already out of warranty due to miles have nitpick warranty politics with the manufacturer during its lifetime”
Last edited by TECHNICIAN; Dec 20, 2019 at 11:01 AM.
They likely will not give him a VMI, as it clearly says on every VMI "For internal use only". VMI does NOT show date the status changed so it won't help his case. Flashing to stock will not automatically remove the status 8, that is at the discretion of the corporate AOM (area operations manager) and his superiors. NO ONE at the dealer level has any say in these matters
The dealer can't "scan" a car at this point in time and definitively see that it is tuned. Xentry does not have this capability. They can however forward the scans and logs to engineering who will see the tune
Agreed
It does not
No one outside the mercedes dealer network has access to the internal network. I'd imagine the same goes for other manufacturers
Nothing wrong with "tuning" as long as you understand the risks involved and consequences you may suffer.
You just can't have your cake and eat it too in all situations.
My dealer helps a lot, I have a long history with them but I understand that when the **** really hits the fan, I will be on my own.......
too many guys on here saying you're all good because "dealer has to prove the tune caused the problem" blah blah ... Internet soldiers





