Oil measurement fails at 20%, unable to tell how much oil is in engine, can lead to severe engine damage where the engine seizes and you loose power brakes and steering. Dealer says only fix is oil pump replacement.
2020 BMW M340I engine complaints
Page 3 of 3: complaints 41 to 46 of 46, newest first, as owners wrote them.
Oil level wouldn't read over 20 percent... the deals know it's an issue and it is related to the Oil pump
Unable to read oil level, high or unusually alarming oil pressure. High oil pressure codes
Electronic oil level sensor can’t read oil level. Vehicle is currently at the mechanic shop getting the oil pump replaced. It’s costing me around $2,500 out of pocket since I don’t have a active warranty anymore.
Oil pump in earlier models are known to fail prematurely due to plastic internals . There is a revised oil pump that has all metal internals but those have early model vehicles with same engine have received oil pumps that fail and can be catastrophic while driving and causing injury if vehicle fails and causes accident.
The engine oil pump has failed. The part is available for inspection. The failed oil pump causes the engine to blow up, leaving oil and coolant behind on the road as hazards and causing our vehicle violently spin out on the road. The problem has been reproduced multiple times and claimed by bmw dealerships to be faulty on multiple occasions. Upon further research, it has affected 80% of the 2019 and 2020 g series chassis vehicles with the B58tu engine. BMW has a known problem of failed oil pump. As has my own 2020 bmw m340i. The only warnings we had were the oil not measuring through the interior display, the only way to check it no dip stick, not completing or stopping at 21% with failed measurement. It has first appeared for me at 20k miles, for others as early as 5k miles. The vehicle has not been inspected by police or insurance other than the dealer and local independent shop.
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