【Vehicle Name】2017 Imported BMW M4 Coupe 【Registration Date】September 2018 【Mileage】56,000 km 【Vehicle Description】A BMW performance sports car has arrived at the dealership. The 3.0T inline 6-cylinder S55 engine is a true performance beast, boasting 431 horsepower. Front-engine, rear-wheel drive, exceptional handling, rich features, Harman Kardon sound system, red leather interior, rear differential lock, multiple driving modes. This car was over a million RMB on the road. The above specifications are for reference only; actual specifications are subject to the actual vehicle. 【Vehicle Condition】One front bumper has been replaced, the left rear fender has been repainted, and the insurance has expired. Excellent condition.
We will never perform blind deep disassembly unless there are clear severe fault codes or extreme noises. The sealing of the engine and transmission is crucial, and compromising the factory seals to investigate non-existent issues is unprofessional. We rely on data flow and external acoustic and fluid analysis to make judgments.
We will directly check the registration certificate (the big green book) and count the number of changes.
Experience turbo lag and power surge during road tests; check for significant oil accumulation at the turbo intake and intercooler connections (slight oil vapor is normal); and use OBD to read the real-time boost pressure peak to see if it meets factory settings.
