2018 BMW 2 Series: What to check before buying
Owners have filed 264 complaints with NHTSA about this car, most about the engine, airbags, and electrical. The 9 checks below target those problems, in the order you would do them at the car.
2018- Owner complaints
- 264
- Recalls
- 11
- Crashes reported
- 21
- 23 injuries
Your inspection sheet
Tick items off on your phone at the car, or print it. Ticks stay on this device.
0/9 checked
2018 BMW 2 Series: inspection sheet
Paperwork and questions
Before you go, or before you touch the car0/1
Walk-around and cabin
Engine off, key in hand0/2
Cold start, engine bay, and underside
Ask the seller not to warm the car up first0/4
Test drive
At least 20 minutes, with some highway0/2
These checks are specific to this model year. For tires, body panels, fluids, and the other basics every used car needs, use the general inspection guide.
Which 2 Series is it?
EPA figures for each version of the 2018 BMW 2 Series. Use them to confirm you are looking at the version that was advertised, and as a yardstick on the test drive.
| Version | Drive | EPA rating |
|---|---|---|
| 2.0L 4-cyl | AWD, RWD | 27–28 mpg |
| 3.0L 6-cyl | AWD, RWD | 24 mpg |
- The 2018 BMW 2 Series was sold in two versions. Confirm which one this is from the window sticker, the engine cover, or the VIN report before you compare prices.
- Reset the trip computer at the start of the drive. A 2 Series that averages well under the EPA 24 mpg combined on a mixed route may have an engine or tire problem.
Check the odometer against these mileages
Owners report these failures starting around the mileages below. A car inside one of these ranges deserves a closer look at that part, or records showing it was already fixed.
Coolant hose and housing leaks
49,000–53,000 miles
Why these checks: what owners reported
NHTSA complaints for the 2018 BMW 2 Series, grouped by the part owners named. Open a row to read what goes wrong.
Engine39No crashes
Coolant loss is the core problem. A low-coolant warning appears, often with little advance notice, followed by overheating, limp mode, or a sudden loss of power. Dealers commonly blame a cracked oil filter housing, a leaking coolant pump, or brittle plastic hoses, with housing failures reported around 53,000 miles. Some cars need a new engine after overheating. Other reports cite failed rod bearings and rocks puncturing the radiator. Three filings describe smoke or fire in the engine compartment, including one that started right after shutdown.
Leaking hoses, reservoir hoses, and water pumps trigger low-coolant warnings, overheating, reduced power, and stalling while driving. Some cars need a second water pump after the first replacement, and one report describes smoke under the hood and inside the cabin. Reported coolant failures range from 49,000 to 105,000 miles. Leaks from oil cooler lines and turbo lines that contaminate the coolant also appear. Several owners say the manufacturer offered no help with the repair.
Airbags383 crashes
A recurring "Passenger restraint system malfunction" warning dominates these reports. Dealers trace it to a failed passenger seat occupancy sensor mat, which can keep the passenger airbag from deploying. Some owners also see the passenger belt warning triggered by a wallet or other light object, and a few report driver-seat sensor failures as well. Repairs are often outside warranty and are quoted at over $2,000. In 3 separate crash reports, the airbags did not deploy in front, rear, and animal-strike impacts. The category lists 5 injuries in total.
Electrical262 crashes
Fire is the most serious pattern. Two reports describe smoke and flames from the rear window defroster wiring near the back seat and C-pillar. Other filings cover a sudden total power loss with steering failure at low mileage, and doors, windows, and the sunroof operating on their own along with gear shift error messages. Plug-in hybrid owners report a burned-out charging module and poor battery range. Water leaking into the roof antenna is blamed for emergency call faults, and some cars have wiring chewed by rodents.
Seat belts141 crash
False warnings lead this category. The "Passenger restraint system malfunction" message appears at startup or at random, and seat belt chimes sound when the seat is empty or the driver is already buckled. Dealers point to the passenger seat sensor mat, with quotes from over $2,000 up to $2,800, and some warnings return after a warranty repair. Mechanical faults appear too: driver belts that will not retract, a rear buckle that will not latch, and a passenger belt that locked and unlocked repeatedly during a crash.
Transmission82 crashes
Stalling and power loss lead this category. Cars shut off at highway speed or when coming to a stop, sometimes showing "Drivetrain malfunction" or "transmission not in park" messages. Diagnoses include a failed fuel pump and fuel rail line, a VANOS fault after a rough cold start, and coolant leaks that cause jerking. A cracked driveshaft flex disc turns up at 22,000 miles. In one crash, the car accelerated from a stop while the drivetrain warning flashed, and the driver suffered a fractured back.
Seats52 crashes
Seat faults range from distracting to dangerous. The passenger seat occupancy sensor fails and triggers restraint system warnings, with one repair quoted at $2,030. Moisture is sometimes blamed even when the cushion shows no sign of it. The driver seat is reported to slide under braking, and in one low-speed reverse crash it collapsed backward, leading to serious neck injuries. The lumbar support can also inflate on its own while driving, with no warning to the driver.
Body and structure51 crash
Two failures stand out. The front passenger door opens by itself while the car is moving, at times with no warning until it swings open, and it can happen more than once on the same car. The sunroof glass shatters on its own at speed with a loud bang, leaving shards on top of the shade. The remaining report concerns collision damage from another vehicle, not a defect.
Acceleration and cruise control42 crashes
Sudden unintended acceleration appears in two crash reports, one of them while the driver was pulling into a parking space. A cruise control rocker switch can stick, which keeps raising the speed and in one case pushed it past 80 mph. The remaining report involves a run-flat tire blowout on the freeway with severe vibration, pulling, and grinding that ended in a tow.
In owners' own words
Excerpts from complaints 2 Series owners filed with NHTSA, as written. Listen for the same symptoms on your test drive.
My BMW 430i 2018showed no warning and suddenly the car started to shake, I stopped immediately and after the car cooled, there was no coolant, the oil temperature gage was always on normal. The car overheated and caused catastrophic engine failure, and need replacement. Upon inspection by several mechanics, its obvious the coolant leak from a hose that connects with engine block
Filed with NHTSA, March 2024
The vehicle gave a warning that the engine coolant was low and to power down before it overheated. Upon taking it to the dealer, it was discovered that the oil housing unit was defective. After doing online research, this is a very common issue with this part. I had a previous vehicle with a similar issue that caused the vehicle to shut down in traffic from overheating.
Filed with NHTSA, January 2025
Vehicle reports "Passenger restraint system malfunction" upon startup, even when passenger is not in seat. Passenger airbag light turns on. In this state the vehicle defaults to deploying the passenger airbag no matter what, even if passenger weighs less than 45 lbs. BMW of North Scottsdale inspected and recommends replacing the passenger seat sensor mat for $3600, not covered outside of factory warranty.
Filed with NHTSA, October 2022
The Passenger Restraint System Malfunction warning light comes on randomly. Also the passenger side seat belt light comes on even if I put my wallet or something very light on the seat. I previously replaced the driver side seat sensor because the restraint system error was coming on. It seems odd that this critical component would fail in both seats by year six.
Filed with NHTSA, January 2025
KLE MODULE FAILURE - Causing short on EV Hard Wires Wall Charger. Module Burned out on vehicle, which could cause fire and electrical problems. This failure also causes problems with emissions issues as this is a Hybrid Vehicle. BMW has has several issues with this and advising that it is not a covered part in the 2018 module, but has been covered and repaired in 2019 + Vehicles.
Filed with NHTSA, April 2023
Digital display cluster suddenly started flickering and had a shifting image moving incorrectly to the left. It made reading the electronic speedometer and other gauges impossible and highly unsafe while driving on highway. There was no way to safely determine speed or vehicle. The display did not recover after parking the car and restarting engine.
Filed with NHTSA, February 2024
Constantly pops up a message for passenger restraint system malfunction. I had an accident where I swerved off the road into a ditch at about 60 mph. I the driver was not hurt and the passenger wouldn’t have been hurt either if it was for the passenger seat belt not locking correctly at first and then repeatedly locking and unlocking the entire time hurting his chest.
Filed with NHTSA, February 2025
The passenger seat is a mess. There are two issues that repeatedly happen on this car. One - there is false passenger seatbelt warning and two their is a passenger restraint system malfunction message. I took this to the BMW dealership and they said it requires a sensor mat replacement that costs over $2000. I looked it up online and found many people have had the exact same issue with this car.
Filed with NHTSA, January 2024
How the 2018 compares with other 2 Series years
Complaints for this year next to the average for the other model years, area by area.
The 2018 has the most owner complaints of the 8 2 Series years we cover, about 6.2 times the average of the others. Newer years have had less time to collect complaints, so compare like with like.
- Engine394
- Airbags383
- Electrical267
- Seat belts140
- Transmission83
- Seats50
Where the 2018 fits in the 2 Series's history
Redesigns and mid-cycle updates change what can go wrong.
The 2018 is the fifth model year of the 2 Series's first generation (2014–2021).
Recalls to confirm (11)
Recall repairs are free at any BMW dealer, but the seller may never have had them done. Check each campaign number against the VIN.
24V588000EngineAug 2024
BMW of North America, LLC. (BMW) is recalling certain 540d xDrive vehicles that were previously repaired under recall number 22V-614. The exhaust gas recirculation (EGR) cooler may leak internally, causing coolant to mix with diesel engine soot, which could result in smoldering particles and a melting intake manifold.
Risk: An EGR valve with smoldering particles and a melting intake manifold increases the risk of an engine fire.
Fix: Dealers will inspect and replace the EGR module and the intake manifold as necessary, free of charge. Owner notification letters were mailed October 7, 2024. Owners may contact BMW customer service at 1-800-525-7417.
22V614000EngineAug 2022
BMW of North America, LLC. (BMW) is recalling certain 2018 540d xDrive vehicles equipped with an Exhaust Gas Recirculation (EGR) module with an integrated cooler. The EGR cooler may leak internally, causing coolant to mix with diesel engine soot, which could result in smoldering particles and a melting intake manifold.
Risk: A melting intake manifold increases the risk of fire.
Fix: Dealers will replace the EGR module, and the intake manifold will be inspected and replaced, if necessary, free of charge. Interim owner notification letters were mailed on October 7, 2022. Owner notification letters were mailed December 30, 2022. Owners may contact BMW customer service at 1-800-525-7417.
21V907000Fuel systemNov 2021
BMW of North America, LLC (BMW) is recalling certain 2013-2018 328d, 328d xDrive, 2014-2018 328d Sports Wagon, 328d xDrive Sports Wagon, 2014-2016 535d, 535d xDrive, 2015 740Ld xDrive, 2015-2017 X3 xDrive28d SAV, and 2014-2017 X5 xDrive35d SAV diesel vehicles equipped with an Exhaust Gas Recirculation (EGR) module with an integrated cooler. The EGR cooler may leak internally, causing coolant to mix with diesel engine soot, which could result in smoldering particles and a melting intake manifold.
Risk: A melting intake manifold increases the risk of a fire.
Fix: Dealers will replace the EGR cooler and inspect the intake manifold, replacing it as necessary, free of charge. This recall includes all vehicles previously recalled under 18V-755. Vehicles previously recalled under 18V-755 will need to have the new remedy performed for this recall. An interim owner notification letter was mailed on January 18, 2022. The remedy is expected to be available in June 2022. Owner notification letters were mailed on July 6, 2022. Owners may contact BMW customer service at 1-800-525-7417.
21V586000Fuel systemJul 2021
BMW of North America, LLC (BMW) is recalling certain 2014-2018 328d, 328d xDrive, X5 xDrive35d, 2014-2016 535d, 535d xDrive, 2015 740Ld xDrive, and 2015-2017 X3 xDrive28d vehicles. The high-pressure fuel pump may fail.
Risk: Fuel pump failure can cause an engine stall while driving, increasing the risk of a crash.
Fix: Dealers will replace the high-pressure fuel pump, free of charge. Owner notification letters were mailed on January 14, 2022. Owners may contact BMW customer service at 1-800-525-7417.
20V243000AirbagsApr 2020
BMW of North America, LLC (BMW) is recalling certain 2017 530i, 530i xDrive, 540i and 540i xDrive and 2017-2018 530e xDrive vehicles. Prior exposure to excessive levels of humidity within the driver and passenger head air bag inflators may affect the proper deployment of the head air bags.
Risk: In the event of a crash of sufficient severity, deployment of the head air bag may be impaired and/or the igniter could separate from the inflator, increasing the risk of injury.
Fix: BMW will notify owners, and dealers will replace the left or right head air bag, free of charge. The recall began June 24, 2020. Owners may contact BMW customer service at 1-800-525-7417.
19V684000Backup cameraSep 2019
BMW of North America, LLC (BMW) is recalling certain 2018 540d, 2018-2020 530i, 530i xDrive, 540i, 540i xDrive, M550i xDrive, M5, 530e, 530e xDrive, X3 sDrive, X3 xDrive, X3 M40i, X3 M, and 2019-2020 X4 xDrive, X4 M40i, X4 M, X7 xDrive, X7 M50i, 740Li, 740Li xDrive, 750Li, 750Li xDrive, 8 Series Convertible and Coupe 840i, 840i xDrive, M850i xDrive, X5 sDrive, X5 xDrive, X5 M50i, X6 xDrive, X6 M50i, 330i, 330i xDrive, M340i, M340i xDrive, Z4 sDrive, Z4 M40i, 740Le xDrive and 745Le xDrive, 2018-2019 640i xDrive Gran Turismo and Rolls-Royce Phantom, 2019 M850i xDrive Gran Coupe and Rolls-Royce Cullinan and 2020 Toyota Supra vehicles. The back-up camera and display settings can be adjusted such that the rear view image is no longer visible and the system will retain that setting the next time the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rearview Mirrors.".
Risk: The lack of an image in the back-up camera display increases the risk of a crash.
Fix: BMW will notify owners, and dealers will update the back-up camera software, free of charge. The recall began November 8, 2019. Owners may contact BMW customer service at 1-800-525-7417 or Rolls-Royce at 1-877-877-3735. Toyota owners may contact Toyota customer service at 1-888-270-9371.
18V755000EngineOct 2018
BMW of North America, LLC (BMW) is recalling certain 2013-2018 BMW 328d and 328d xDrive, 2014-2018 328d Sports Wagon and 328d xDrive Sports Wagon, 2014-2016 535d and 535d xDrive, 2015 740Ld xDrive, 2015-2017 X3 xDrive28d SAV and 2014-2017 X5 xDrive35d SAV vehicles equipped with an Exhaust Gas Recirculation (EGR) module with an integrated cooler. If the EGR cooler leaks internally, the coolant can mix with diesel engine soot. The high EGR temperatures may result in these particles possibly smoldering and melting the intake manifold.
Risk: The melting intake manifold can increase the risk of a fire.
Fix: BMW will notify owners, and dealers will inspect and replace the EGR cooler as necessary. If a leak has already occurred, the engine intake manifold will also be replaced. These repairs will be made free of charge. The recall began May 13, 2019. Owners may contact BMW customer service at 1-800-525-7417.
18V652000EquipmentSep 2018
BMW of North America, LLC (BMW) is recalling certain 2018 BMW 330e iPerformance, i3 Rex, i3 Sport Rex, X5 xDrive40e, i3 BEV, i3 Sport BEV and 2019 i8 and i8 Roadster vehicles and 2018-2019 530e iPerformance, 530e xDrive iPerformance and 740Le xDrive iPerformance vehicles. Capacitors within the TurboCord Portable Chargers may fail, possibly resulting in a shock hazard or a fire.
Risk: An electrical shock or a fire can increase the risk of injury or death.
Fix: BMW will notify owners, and dealers will inspect the charging cable, and replace it if necessary, free of charge. The recall began February 22, 2019. Owners may contact BMW customer service at 1-800-525-7417.
18V465000EngineJul 2018
BMW of North America, LLC (BMW) is recalling certain 2018 BMW 540d xDrive vehicles. The crankshaft sensor may be equipped with incorrect firmware, preventing the sensor from properly processing input from the crankshaft reluctor ring, possibly resulting in a vehicle stall. On September 12, 2018, BMW expanded the recall to a total of 5,309 vehicles including certain 2018-2019 BMW 540d xDrive, 230i M240i, M240i xDrive, X2 sDrive28i, X2 xDrive28i, X1 sDrive28i, X1 xDrive28i, 330i, 330i xDrive, 340i, 340i xDrive, 330i xDrive Gran Turismo, 530i, 530i xDrive, 540i, 540i xDrive, 530e, 530e xDrive, 640i xDrive Gran Turismo, 330e, 2019 430i Gran Coupe, 430i xDrive Gran Coupe, 440i Gran Coupe, 440i xDrive Gran Coupe, 430i, 430i xDrive, 440i, 440i xDrive, 740i, 740i xDrive, MINI Cooper, Cooper S, JCW, MINI Countryman (Cooper, Cooper All4, Cooper S, Cooper S All4, JCW All4), and MINI Clubman (Cooper, Cooper S, Cooper All4, Cooper S All4, JCW All4) vehicles.
Risk: A vehicle stall can increase the risk of a crash.
Fix: BMW will notify owners, and dealers will replace the crankshaft sensor, free of charge. The recall began September 6, 2018. Owners may contact BMW customer service at 1-800-525-7417.
17V719000ElectricalNov 2017
BMW of North America, LLC (BMW) is recalling certain 2018 230i, 230i xDrive, M240i, M240i xDrive, M2, and X3 xDrive 30i SAV vehicles. These vehicles may have an error in the software for the instrument panel, causing the display to not properly illuminate. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 101, "Control and Displays.".
Risk: If the display does not illuminate during start up or does not illuminate various control and warning symbols while driving, it can increase the risk of a crash.
Fix: BMW will notify owners, and dealers will update the instrument cluster display software, free of charge. The recall is expected to begin January 8, 2018. Owners may contact BMW customer service at 1-800-525-7417.
17V507000Seat beltsAug 2017
BMW of North America, LLC (BMW) is recalling certain 2018 430i, 430i xDrive, 440i, 440i xDrive, and M4 convertible vehicles. The Emergency Locking Retractors (ELR) within the front seat belt assemblies may have been produced with incompatible vehicle-sensitive locking mechanism housings.
Risk: If the vehicle has an incompatible vehicle-sensitive locking mechanism, the seat belt may not restrain the seat occupant in the event of a crash, increasing the risk of injury.
Fix: BMW will notify owners, and dealers will inspect and, if necessary replace, the front seat belt assemblies, free of charge. The recall began October 13, 2017. Owners may contact BMW customer service at 1-800-525-7417.
Also looking at these instead of a 2 Series?
Cars shoppers compare with the BMW 2 Series, with their own 2018 checklists.
2018 owner complaints, side by side
- Audi Q325
- Porsche Macan29
- Volvo XC6035
- Volkswagen Golf56
- 2018 BMW 2 Series264
- Mercedes-Benz C-Class518
- Mercedes-Benz CLA529
