BMW's first fully electric M car, combining 544 hp dual-motor output with the practicality of a four-door gran coupe. The 5th generation eDrive powertrain has proven fundamentally durable, with battery degradation typically under 6% at 80,000 km. Running costs are lower than comparable ICE M cars, but the M50 adds complexity over the eDrive40 through its dual motors and adaptive M dampers. Rear air suspension is not one of the differences: BMW fits it across the i4 range. The M50 ran from the November 2021 European launch until the M60 xDrive replaced it in July 2025.· more· less
Strong battery health long-termLow routine maintenance needs
Charging system recalls (CCU)Rear air suspension adds cost
Buy if: You want M-car performance with dramatically lower running costs than an ICE equivalent and can verify all recall work has been completed.
Avoid if: You need a car with no outstanding recall history or are uncomfortable with EV-specific repair costs when warranty expires.
Price & maintenance
Used price
€46,900
median asking price, typically 50,000 km
Typical range€44,300 – €50,500
Kilometres drivenAll
Maintenance cost
€750 – €1,500/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€400 – €700 /yr
Risk bufferunplanned repairs€350 – €800 /yr
Price estimates are based on German asking prices. Prices and costs vary by vehicle condition and location.
Ownership costs
Maintenance assumes 15,000 km a year. Price estimates are based on German asking prices. Prices and costs vary by vehicle condition and location.
Used price
€46,900
Typically €44,300 – €50,500, at around 50,000 km.
Kilometres driven
Maintenance
€750 – €1,500per year
€400 – €700
service, tyres, brakes
€350 – €800
repair buffer
Price & maintenance
Used price
€50,000
median asking price, typically 40,000 km
Typical range€45,200 – €55,400
Maintenance cost
€750 – €1,500/year
at 15,000 km/year
Fixed costsservice, tyres, brakes€400 – €700 /yr
Risk bufferunplanned repairs€350 – €800 /yr
Price estimates are based on French asking prices. Prices and costs vary by vehicle condition and location.
Ownership costs
Maintenance assumes 15,000 km a year. Price estimates are based on French asking prices. Prices and costs vary by vehicle condition and location.
CCU may lose ability to AC charge due to manufacturing defect, subject to recall · more· less
The CCU manages all charging functions. When it fails, the car typically loses AC (Level 2) charging ability while DC fast charging may still work. BMW issued a recall where the CCU was not manufactured to specification; the UK action R/2023/235 covers cars built 21 June to 4 July 2022, so check the build date rather than assuming every 2022-2023 car is in it. Replacement cost is approximately €2,500-4,000 for parts and labor. Under warranty or recall, BMW replaces the unit free of charge, but wait times of 3-4 weeks for the part are common. For post-warranty cars, this is one of the most expensive potential repairs. A 2024 software update also caused some owners to lose Level 2 charging capability temporarily.
Electric drive unit software shutdown (US campaign)
up to €5002 of 9
Software error may cause high-voltage system to shut down unexpectedly while driving · more· less
In mid-2025 BMW recalled roughly 70,000 EVs for a software error that can erroneously detect a double-isolation condition. As a fail-safe the high-voltage system shuts down about 15-20 seconds after a warning message, causing a loss of power; steering and braking keep working. That campaign, 25V395, is documented by BMW as a United States action, so it does not automatically reach a European car. It matters here for two reasons: a personally imported US car is squarely in scope, and the underlying software is shared, so it is worth asking BMW what the VIN returns and whether the current software level is installed. The fix is an over-the-air update or a dealer reflash at no cost.
Heat changeover valve coolant leak
up to €1,5003 of 9
Coolant valve leaks in freezing temperatures, causing loss of cabin heating · more· less
Affects i4 models built between May 2023 and January 2024. The heat changeover valve can develop a leak when temperatures drop significantly below freezing. The first symptom is typically loss of cabin heating. BMW addressed this by replacing the coolant changeover valve on affected cars; note that SIB 64 06 24, often quoted here, is a BMW North America delivery stop rather than the European service action, so ask the dealer what is recorded against the VIN. If the heater core was also damaged by running dry, both the valve and heater must be replaced together. The repair is covered under the service action for affected VINs, but post-warranty replacements cost €500-1,500 depending on whether only the valve or additional components need replacing.
Charging port door failure
up to €8004 of 9
Charging port flap mechanism fails to open or close properly · more· less
A poll on i4talk.com showed approximately 19% of respondents experienced some form of charging port door issue, though self-selection bias likely inflates this figure. The actuator behind the charging flap can fail, preventing the door from unlocking or closing. The flap mechanism itself is relatively inexpensive, but the repair requires partial disassembly. If caught early, the fix is straightforward. In rare cases where the charging port contacts themselves degrade, the repair can be significantly more expensive.
Rear air suspension strut leak
up to €2,5005 of 9
Rear air springs can develop slow leaks, causing uneven ride height · more· less
The i4 M50 has rear air suspension as standard. While not widely reported within the first few years, air suspension components are known wear items that typically develop leaks after 5-8 years. Symptoms include the car sitting lower on one side after being parked overnight, or failure to maintain ride height. A single strut replacement costs approximately €1,000-1,500 for parts and labor. If the compressor is also damaged from overworking, the repair can reach €2,000-2,500. Early-model owners on forums report few issues so far, but this is a future risk as these cars age.
High-voltage battery cell module fault
up to €8,0006 of 9
Improperly assembled battery modules may cause drivetrain malfunction or shutdown · more· less
BMW has issued multiple recalls for improperly assembled high-voltage battery cell modules affecting 2022-2024 i4 models. Issues include insufficient weld seams, improperly secured electrical connections in cell monitoring circuits, and excessive force during assembly causing frame stress. Symptoms include drivetrain malfunction warnings followed by complete power loss. Most affected vehicles have been identified and repaired under recall. For a used car buyer, verifying all battery-related recalls have been completed is essential. Out-of-warranty module replacement is very expensive.
Front suspension knocking noise
up to €8007 of 9
Knocking or crunching sounds from front suspension over uneven surfaces · more· less
Multiple owners report a knocking or crunching sound from the front suspension, particularly over small undulations at low speeds. BMW dealers have attempted fixes including replacing stabilizer rod links (per a service bulletin) and front shock absorbers, with mixed results. The noise is often difficult to diagnose because it disappears after the suspension is unloaded on a lift. The heavy curb weight of the i4 (approximately 2,215 kg for the M50) puts additional stress on front suspension components. While primarily a nuisance issue, worn bushings or links should be replaced to prevent accelerated tire wear.
12V auxiliary battery failure
up to €4008 of 9
12V battery drains or fails, preventing the car from starting or operating systems · more· less
Like all modern EVs, the i4 relies on a small 12V auxiliary battery for comfort access, key detection, and system wake-up. When this battery fails, the car cannot be started or unlocked. Expected lifespan is 4-6 years depending on climate and usage patterns. Replacement costs approximately €200-400 including labor and battery management recalibration. Some owners have experienced premature failure linked to CCU-related charging issues keeping the 12V system from charging properly.
iDrive 8 infotainment freezing and reboots
up to €3009 of 9
Infotainment screen goes black, freezes, or reboots spontaneously while driving · more· less
Early i4 models with iDrive 8 experienced frequent screen blackouts, frozen touchscreens, and CarPlay disconnections. The screen typically recovers within 1-2 minutes or after a manual reset (holding the volume knob). Subsequent software updates have significantly reduced the frequency of these glitches. For most owners this is a software-level annoyance with no repair cost, but persistent cases may require a head unit reflash at the dealer (€100-300). Rarely, hardware replacement of the head unit is needed.
Fundamentally solid EV with recall-heavy early production
The i4 M50's dual-motor drivetrain and battery pack have proven durable, with battery health typically above 93% after 50,000 miles and no widespread motor failures. However, the first two production years (2022-2023) accumulated multiple recalls covering the charging unit, battery modules, and drive software. Verify all recall work has been completed before purchase. Post-recall cars are generally reliable, with main ongoing concerns being the charging port mechanism, front suspension noise, and eventual rear air suspension wear.
Service history
Complete BMW dealer or authorized specialist records. Verify all software updates have been applied.
Tires
Check tread depth on all four corners. Rear tires wear significantly faster due to torque and weight. Look for uneven wear indicating alignment issues.
Test drive
Minimum 30 minutes including motorway speeds. Pay attention to front suspension over rough surfaces and any warning messages.
Diagnostic scan
Have a BMW specialist run a full diagnostic scan including high-voltage system, charging system, and thermal management fault codes.
Specific for this vehicle
Verify all recall work completed
Contact BMW with VIN. Check the seat belt retractor and CCU recalls, the battery module recalls, the longitudinal beam and crash pad campaigns, and the coolant valve work on May 2023 to January 2024 builds. Ask specifically what the VIN returns rather than accepting a general list.
Test AC and DC charging
Plug into a Level 2 charger and verify it begins charging normally. If possible, test DC fast charging as well. CCU-related failures often only affect one type.
Check charging port door operation
Open and close the charging flap multiple times. It should release and lock smoothly without hesitation or grinding.
+ 4 more checksShow less
Inspect rear air suspension ride height
Park the car on level ground and check that both sides sit at equal height. Note any compressor sounds when the car is started cold.
Check battery state of health
Request SOH reading via BMW Connected or dealer diagnostic. Expect 92-96% at 50,000 km. Below 90% before 80,000 km warrants investigation.
Listen for front suspension noises on rough roads
Drive slowly over speed bumps and uneven surfaces. Listen for knocking or crunching from the front. The noise is most audible at low speeds.
Test heating system
Run the cabin heater for several minutes and verify consistent warm air output. Inconsistent heating may indicate a coolant valve issue.
Recalls and Technical Service Bulletins
Seat belt retractor micro gas generator can be faulty - EU campaign for i4s built 11 January to 2 March 2022Critical - verify completed
High-voltage battery CCU not manufactured to specification - UK recall R/2023/235 covers i4s built 21 June to 4 July 2022Critical - verify completed
High-voltage battery crash pad assembly - EU campaign covering September to November 2021 productionVerify completed
Chassis longitudinal beam production defect - EU campaign running to 14 May 2024 buildsVerify completed
Coolant changeover valve leak on cars built May 2023 to January 2024, where the valve can leak in hard frost and the cabin heating failsVerify completed
The i4 accumulated a lot of campaigns in its first production years, and the published windows are much narrower than the model years suggest, so contact BMW with the VIN rather than reading across from the build year. The seat belt retractor and CCU actions are the two to insist on for an early car. Watch the scope on the ones that circulate online: the drive unit software recall 25V395 is a United States campaign, and SIB 64 06 24 is a BMW North America delivery stop rather than a European service action.
Warranty Status
Factory warranty (2 years, 3 years from Nov 2016 with 2+1)Expired on 2022 models, may remain on 2023+ with BMW Service Inclusive
High-voltage battery warranty8 years / 160,000 km with minimum 70% capacity guarantee
Rust perforation warranty12 years
Extended warrantyAvailable through BMW dealers (BMW Used Car Warranty)
Early 2022 i4 M50 models are outside their original 3-year factory warranty. The high-voltage battery warranty (8 years / 160,000 km) remains the most valuable coverage for used buyers. Verify battery SOH falls within warranty thresholds before purchase.
Sources: Research draws on model-specific owner forums and owner communities, recall information from official authorities, German automotive press, and multiple workshop cost references cross-checked against each other.
This report is for informational purposes only and does not constitute professional advice. Estimates may be inaccurate. Always have a qualified specialist inspect the vehicle before purchase. We accept no liability for decisions made based on this information.
