2021 BMW X5 M engine problems

“My 2021 BMW X5 xDrive40i intermittently fails to start, occurring on approximately 80% of start attempts, and displays the message "Repeat Start Attempt." This has been confirmed by code reading to be a starter-related malfunction. This defect significantly affects vehicle reliability and raises a potential safety concern. BMW previously recalled vehicles equipped with similar starter motors due to starter solenoid defects that could cause overheating, electrical short circuits, and an increased risk of vehicle fire. The symptoms on my vehicle appear consistent with those associated with the previously identified defect. I respectfully request that NHTSA investigate whether the starter motor defect previously addressed through BMW recalls extends beyond the identified production range, including 2021 model year vehicles. The recurring failure, similarity to previously recalled defects, and potential fire hazard warrants further review.”

“The contact owns a 2021 BMW X5. The contact stated that the vehicle failed to immediately start. The vehicle started later. The engine and a yellow warning light flashed on the instrument panel. Upon research, the contact located the German Federal Motor Transport Authority (Kraftfahrt-Bundesamt), for KBA Reference Number: 16131R, which was associated with the starter motor. The contact stated that the failure was associated with NHTSA Campaign Number: 24V576000 (Electrical System, Engine and Engine Cooling) and 25V644000 (Electrical System). The vehicle was taken to an independent mechanic who determined that the failure was associated with the starter motor, which was replaced. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was contacted, and the contact was informed that there was no recall on the VIN associated with the failure. The failure mileage was approximately 49,000.”

“The front driveshaft universal joint failed causing the drive shaft to bust a hole in the engine and crack the transmission. There was no knocking noise prior to failure. It suddenly failed, disengaged and caused damage. I was told by service manager the u-bolt must have been defective to have failed without warning.”

“I am having issues with the starter motor / battery. I have read extensively about issues with BMW X5 models having recalls during the production period of my vehicle. BMW is trying to charge $3,000 for a new starter and battery. I feel that this is a known and significant issue with BMW X5 vehicles produced during the same period as my vehicle and would like for this to be covered under recall.”

“After the car was.parked in sun for aome time during shopping at Costco, it did not start. We had to use remote starter which worked. However, upon doing some research I found that overheated starter is a known and recalled problem with 2021 X5 and remote start could have caused fire. Dealership also confirmed it to be the smae pronlem , but BMW has not listed this vin as recalled. I contacted BMW and they denied that it was same.problem, although mine is also 2021 X5 with smae.overheated starter problem.”

“2021 BMW X5 xDrive45e PHEV, built October 2020 by BMW AG (Germany). In-service Oct 28, 2021. Vehicle intermittently shows "Drivetrain Malfunction — you can continue driving" warning. DME scan reveals 5 fault codes, all for the conventional 12V pinion starter: 21A50A — Pinion starter: timeout occurred several times in succession 21A511 — Pinion starter: timeout 21611A — Pinion starter: starting torque could not be built up; high counter torque and/or undervoltage 216119 — Pinion starter: line break in starter control (KL50/KL30) 216115 — Pinion starter: attempt to start with blocked starter detected 21A50A and 216115 are protected memory codes that cannot be cleared by standard OBD-II tools. The main 12V AGM battery was replaced and registered; codes continue to recur. This signature matches the B58 pinion starter defect addressed in NHTSA Recall 24V-576 (Aug 2024) and 25V644 (Nov 2025, physical starter replacement). The vehicle's German manufacture date falls inside the production windows of KBA recalls 15630R, 15632R, and 15633R — all covering X5 G05 for short-circuit and fire risk from starter relay corrosion or inadequate mounting. BMW AG has issued an ADAC…”