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Carfax says "Engine/powertrain computer/module reprogrammed"

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Old Jun 16, 2025 | 04:21 PM
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Carfax says "Engine/powertrain computer/module reprogrammed"

I am considering purchasing a CPO 2019 C-Class with 55k miles, and I noticed the carfax says "Carfax says "Engine/powertrain computer/module reprogrammed" six months prior to the car being put up for sale. The dealer right before the put it up for sale says the fuel filter was replaced and "Fuel tank drained and cleaned, Fuel tank removed and reinstalled, Fuel tank replaced". Does this indicate some persistent problem they can't find?
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Old Jun 16, 2025 | 05:53 PM
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2023 E 450 Sedan. 2018 GLC 300. 2013 E 350 Coupe (retired)
Get detailed service record from dealer, then decide. Dealer has alot more info available then carfax.
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Old Jun 16, 2025 | 10:50 PM
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Yes get a VMI vehicle master inquiry.
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Old Jun 16, 2025 | 11:09 PM
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Originally Posted by W205C43PFL
Yes get a VMI vehicle master inquiry.
I got the VMI, but it didnt list anytjing besides specs. It said it was in the shop.

Ill try to get complete service records, thats a good idea.
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Old Jun 16, 2025 | 11:15 PM
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Originally Posted by BaconTaco
I got the VMI, but it didnt list anytjing besides specs. It said it was in the shop.

Ill try to get complete service records, thats a good idea.
Hmmm, I see.
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Old Jun 17, 2025 | 03:04 AM
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2023 E 450 Sedan. 2018 GLC 300. 2013 E 350 Coupe (retired)
Any damage to rear end? If you are worried, take to another dealer or good independent shop for inspection. You probably don't have much if any full warranty left. CPO does not provide complete coverage. Perhaps you can use this to ask for additional coverage, a written extension from the dealer, or some free maintenance.
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Old Jun 17, 2025 | 07:20 AM
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"Engine/powertrain computer/module reprogrammed" could be a normal Service Campaign regarding Dieselgate or anything related with Software Update

The fuel filter and tank, maybe because previous owner misplaced diesel with petrol or vice versa.
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Old Jun 17, 2025 | 07:39 AM
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Could have easily been a TCU replacement - that does require programming and a learn in of the security systems between engine, tcu and each BUS of the car.
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