Can Mercedes really tell if the car has been run in correctly by reading the ECU? If it does it store this information, surely they could tell if it had remapped, even if I returned it back to 'stock'?
Please don't answer if you don't know for sure as I'm keen to get a definitive answer rather than speculation
Many thanks in advance
Please don't answer if you don't know for sure as I'm keen to get a definitive answer rather than speculation
Many thanks in advance