2021 BMW X5 engine problems

Filed Sep 23, 2026 · Electrical, Engine · FL

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 the federal safety agency 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.

Filed Aug 24, 2026 · Electrical, Engine · 49,000 miles · FL

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 the federal safety agency 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.

Filed Aug 12, 2026 · Engine, Suspension · LA

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.

Filed Jun 27, 2026 · Engine · NY

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.

Filed May 19, 2026 · Engine · SC

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.

Filed May 15, 2026 · Electrical, Engine · NC

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 the federal safety agency 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 advisory not to leave affected vehicles running unattended after starting. BMW NA Customer Relations was contacted. Initial verbal response: U.S. recalls don't apply because the xDrive45e PHEV uses a different starter than non-hybrid B58 vehicles. However, codes 216115 and 216119 only exist on vehicles equipped with a conventional pinion starter — confirming this vehicle has the same component. The subsequent written denial pivoted to warranty expiration without addressing the technical or recall-scope questions. Filing so the field record reflects this defect signature for future U.S. recall scope expansion analysis.

Filed Apr 30, 2026 · Engine · CA

Water pump failed while driving on highway. Completely shut down and began to smoke violently. Luckily wife was able to pull over immediately without crashing. Wife and children very disturbed. Looked up issue and 720000 BMW x5 have been recalled with same exact issue. Ours is not. Why?????

Filed Apr 1, 2026 · Engine · HI

The original B58 engine (B58B30M0, 2015–2017) utilized a conventional mechanically robust gerotor oil pump with predominantly metallic internal construction and demonstrated strong reliability in field operation. Beginning with the B58 Technical Update introduced for 2018 production (B58B30O1), BMW redesigned the lubrication system by integrating the engine vacuum pump and oil pump into a combined variable-displacement assembly. This redesign introduced a thermoplastic internal adjusting ring (carrier) responsible for regulating oil pump displacement through rotor eccentricity control. This component, constructed from reinforced thermoplastics including PA66-GF materials, operates within a chemically aggressive and thermally cyclic environment involving continuous exposure to engine oil additives, fuel dilution, condensation, and repeated heat cycling. While acceptable under accelerated validation testing, real-world operating conditions increasingly demonstrate premature degradation consistent with polymer embrittlement and fracture. Observed Failure Mode Documented owner and technician reports indicate that under cold-start conditions — particularly in sub-freezing climates — elevated oil viscosity and startup load impose increased mechanical stress on the thermoplastic carrier. Fracture of this internal component allows debris intrusion into the pump mechanism, resulting in unstable oil pressure regulation. Commonly reported precursor symptoms include: • Inability to perform electronic oil level measurement via iDrive • Erratic or oscillating oil pressure behavior • Intermittent lubrication warnings or absence of warning prior to failure • Rapid progression to bearing damage and engine seizure In many cases, drivers receive insufficient warning before catastrophic lubrication loss occurs. Vehicles may become disabled without notice, including during highway operation or winter driving conditions, leaving occupants stranded in potentially dangerous environ

Filed Mar 31, 2026 · Engine · CO

See attached document for complaint.

Filed Jan 30, 2026 · Electrical, Engine · LA

The contact owns a 2021 BMW X5. The contact received notification of the federal safety agency Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was not yet available. The contact stated that the VIN no longer showed the recall as being open. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure.