Engine And Engine Cooling Related Problems of the 2020 BMW Z4

Table 1 shows one common engine and engine cooling related problems of the 2020 BMW Z4.

Table 1. Engine And Engine Cooling related problems of BMW Z4

Problem Category Number of Problems
Engine And Engine Cooling problems
2

Engine And Engine Cooling problem #1

The engine starter failed on my 2020 BMW Z4 m40i. The vehicle experienced starting failures and the repair shop diagnosed a faulty/shorted engine starter assembly. The symptoms and component failure match the exact defect description of active safety recalls NHTSA 24v-576 and 25v-636 (starter motor fire risk due to electrical short circuit/overheating). However, when checking my specific 17-digit VIN, the manufacturer has excluded my vehicle from the recall population. Because this is an identical component failure that poses a severe vehicle fire and safety hazard, I am requesting that the NHTSA investigate a recall expansion to include my vehicle's production batch. I have retained the diagnostic reports and repair invoices as evidence.

Engine And Engine Cooling problem #2

Was in a drive thru on 9/6/2020 waiting our turn. Approx. 7 cars in front of us. As we are slowly moving up to order, car in idle, foot on brake. As we are moving forward, when we were up to 3 cars, still idling and foot on brake, the car had fully accelerated, brake not holding the car, inching forward due to the force of the acceleration. Tried to shift into neutral, went into reverse. Tried again to shift into neutral, went into drive, still inching forward, at this time I pushed the off button to stop the car. Result of collision with the vehicle in front of us. We have photos but not on this computer.


Engine And Engine Cooling related problems in other BMW Z4 model year vehicles:



Z4 Service Bulletins
Z4 Safety Recalls
Z4 Defect Investigations