Table 1 shows one common engine and engine cooling related problems of the 2018 BMW M5.
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems |
I had gotten into a head on collision in January. My insurance had refused to cover me because I had only been insured for a month. Now I’m trying to get it fix out of pocket. I’m finding out about more repairs needed ASAP. My engine might be gone.
BMW issued a stop sale on 2017-2023 BMW f90 M5 chassis regarding the expansion tank failure. All vehicles should be affected by the recall. My current vehicle is experiencing the issues stated on the recall notice. Expansion tank is failing and causing coolant to seep into engine bay.
The coolant tank on my 2018 M5 failed causing a coolant leak. This is a highly documented problem on the forums and mine needed replacement at 22k miles. The bigger issue is the location of the tank because the coolant leaks on the ignition coils and fuel injectors causing failures later. My coils and spark plugs needed replacement along with the tank. This is unacceptable and BMW needs to address this issue.