2025 BMW i4 Problems: 12 Known Issues

On the 2022-2025 BMW i4, bMW recall 25V-395 covers a VIN-defined group of 2022-2025 i4 vehicles produced March 17, 2021 through January 18, 2024. Electric-drive-motor software can mistakenly identify a double-isolation condition and shut down the high-voltage system about 15-20 seconds after a red warning, causing loss of propulsion. Power-assisted steering and braking remain available.

On the 2022-2025 BMW i4 Rear electric drive unit (electrically excited synchronous motor), on the G26 i4 the rear axle (half) shafts engage the electric drive unit's differential output on a splined section. Under repeated hard launches and spirited driving the instant torque of the rear motor wears/strips the splined section, so the shaft spins in the diff output. BMW published a BEV rear-axle-failure repair procedure bulletin covering this. The failure is often preceded by a clunk or loud noise from the rear axle area under load reversal, and ends with the car making noise but not moving when a drive direction is selected.

On the 2022-2025 BMW i4, owners across model years report the car dropping into a red check-control 'Drivetrain malfunction - drive not possible, call roadside assistance' event, sometimes mid-traffic and sometimes at startup, occasionally chained with a 'Power supply' stop-immediately message. Documented root causes found by dealers include a high-voltage system isolation fault detected when the contactors close (BMW SIB 12 05 23 traces it to a metal chip or manufacturing debris behind the eDrive motor's brush module on cars built before 11/2023) and failure of the coolant pump that cools the battery and electric drive unit. A recurring frustration is that after a power cycle the fault self-clears and the dealer cannot reproduce it - cars sit for a week with 'no fault found' - and the warning can also stick in the MyBMW app after the car itself has cleared it.

On the 2022-2026 BMW i4, the i4's heat pump HVAC system can malfunction in cold temperatures below 20°F (-7°C), failing to provide adequate cabin heating and significantly impacting winter range. The heat pump may fail to switch modes properly or experience refrigerant pressure faults, forcing the car to fall back to resistive heating which dramatically reduces range.

On the 2022-2025 BMW i4, the BMW i4 uses a 60Ah AGM lead-acid 12V battery that powers all vehicle electronics and computers. A software bug can prevent the vehicle from entering proper sleep mode after parking, causing modules to remain active and drain the 12V battery. Exterior lamps may remain illuminated post-parking due to incomplete sleep cycles, siphoning charge overnight and reducing daily range. The Combined Charging Unit (CCU) can also malfunction and prevent proper 12V charging from the HV pack. BMW EVs use smaller-capacity 12V batteries than ICE cars since they don't need to crank a starter motor, making them more vulnerable to parasitic drain. Battery registration via ISTA or BimmerLink is required after replacement.

On the 2022-2025 BMW i4, the BMW i4's iDrive 8 curved display system suffers from widespread software instability across all model years. The infotainment system randomly reboots while driving (blank screen for 15-30 seconds), locks up requiring manual power button reset, and experiences post-OTA update regression where previously fixed issues return. When the system crashes, it takes climate controls, navigation, audio, backup camera, and safety displays offline simultaneously. Apple CarPlay and Android Auto integration frequently fails after firmware updates, with audio skips, full disconnections, and Bluetooth profiles overwriting each other. Some owners report the main screen showing only the "BMW" logo on startup and becoming unresponsive. Per i4talk.com polling, approximately 36% of owners report software glitches ranging from minor to severe. Early 2022 models shipped with the most bug-prone software versions.

On the 2022-2025 BMW i4, the i4's charge-port door is electrically latched by a small actuator motor behind the right rear quarter panel; there is no manual emergency release accessible to the owner. Water intrusion past the actuator's seals (heavy rain, car wash, pressure washing) corrodes or shorts the motor, and in freezing weather trapped moisture ices the latch. Owners report the flap refusing to open on command from the button, key or MyBMW app, or - with the same actuator/microswitch at fault - a persistent false 'Charging flap is open' warning while driving.

On the 2022-2026 BMW i4, the 83.9 kWh pack (70.2 kWh on the eDrive35) will only accept its roughly 200 kW peak (about 180 kW on the eDrive35) when the cells are warm. The i4 preconditions the pack automatically only when a DC charger is set as a destination in the built-in navigation - routing via CarPlay or Android Auto does not trigger it, and owners report the manual preconditioning button returning 'Function currently not available' (BMW gates it by ambient temperature, roughly 45F/7C and below, and blocks it at high state of charge or while charging). The result is a cold-soaked pack arriving at a 350 kW station and drawing only 50-75 kW, taking 30+ minutes just to ramp up, with owners assuming the charger or the car is broken.

On the 2022-2026 BMW i4, with adaptive/B-mode regeneration doing nearly all deceleration, the i4's cast-iron rotors go thousands of miles with almost no pad contact. A surface rust layer forms - especially after rain, snow-salt or a car wash - and instead of being scrubbed off it pits and flakes. Owners report first-drive-of-the-day squeal and grinding, and in worse cases deep grooves and chunks of rotor face missing where corrosion pitted under the pad path. Pads then wear unevenly against the pitted surface. Cars parked outdoors in salt-belt or coastal climates and driven exclusively in B mode are the affected pattern.

On the 2022-2025 BMW i4, bMW i4 owners consistently report that the brake pedal has an aggressive, grabby feel with an early bite point that jolts the vehicle. The i4 uses blended braking where regenerative braking engages first, and mechanical brakes only activate when additional stopping force is needed. The transition between regen and mechanical braking is not seamless, creating an inconsistent pedal feel. The eDrive40 is reported to be more touchy/grabby than the M50. Forum discussions on i4talk.com show this is one of the most discussed drivability complaints. Some owners adapt over time; others find it unacceptable. The "B" (strong regen) mode adds additional one-pedal driving deceleration that some find too aggressive while others prefer it.

On the 2022-2026 BMW i4, the i4 is aligned with substantial negative rear camber for cornering grip, and the car's weight (roughly 4,550-5,050 lb depending on version) plus instant rear-motor torque punishes the inside shoulder of the rear tires. Owners on the OE Hankook Ventus S1 Evo3 and Pirelli P Zero fitments repeatedly report rears worn to 2/32 in. on the inner shoulder between roughly 7,500 and 15,000 miles - while the fronts still have most of their tread. It is a wear/alignment characteristic, not a defect, but it is a real and recurring ownership cost that surprises buyers.

On the 2022-2025 BMW i4, because the i4 has no engine noise to mask anything, assembly-tolerance NVH that would be inaudible in a gas 4 Series becomes obvious. The recurring owner pattern is a rattle traced to the rear edge of the panoramic roof and to interior trim clips at the right side of the trunk and headliner, plus an air whistle at the top of the frameless front door glass above roughly 60 mph where the glass does not seat tightly enough into the seal. Cars as new as 200 miles have shown it, and rear trim/seat-back creaks accumulate with mileage.