NHTSA lists 5 safety recalls and 94 owner complaints for the 2015 BMW 4 Series. Most complaints involve electrical system (37) and engine and engine cooling (26). The EPA rates it 24–27 mpg combined.
BMW of North America, LLC. (BMW) is recalling certain 2012-2015 X1 sDrive28i, X1 xDrive28i, 2012-2016 Z4 sDrive28i, 528i, 528i xDrive, 328i, 328xi, 2016-2018 X5 xdrive 40e, 2014-2016 228i, 228xi, 428i, 428i xDrive, 328xi Gran Turismo, 2013-2017 X3 sDrive28i, X3 xDrive28i, 2015-2018 X4 xDrive28i, 2015-2016 428xi vehicles. An improperly sealed electrical connector on the water pump may be exposed to water and short circuit.
BMW of North America, LLC (BMW) is recalling certain 2015 6 Series Gran Coupe, 2014 5 Series Gran Turismo, 2014 5 Series Sedan, 2015 6 Series Convertible, 2015 6 Series Coupe, 2014 X5, 2013-2014 X3, 2014-2015 3 Series Sedan, 2014 4 Series Coupe, 2014 4 Series Convertible, 2014 3 Series Gran Turismo, and 2015 4 Series Gran Coupe vehicles. Please see the recall report for the complete list of models. The driver's air bag inflator may explode during deployment, due to a manufacturing defect.
BMW of North America, LLC (BMW) is recalling certain 2014-2015 2 Series Coupe (228i, 228i xDrive, M235i), 3 Series Sedan (320i, 320i xDrive, 328i, 328i xDrive, 335i, 335i xDrive, M3, 328d, 328d xDrive), 4 Series Coupe (428i, 428i xDrive, 435i, 435i xDrive, M4), and 2015 4 Series Gran Coupe (428i, 428i xDrive, 435i, 435i xDrive) vehicles. The head air bag inflator may fail at the weld joint, which can cause gas to leak from the inflator or result in an inflator rupture.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“The contact owns a 2015 BMW 428I. The contact stated that while the vehicle was parked, while attempting to start the vehicle, it failed to start. The contact stated that the vehicle eventually started. The vehicle was taken to an independent mechanic, where it was diagnosed with coolant pump failure. The contact was informed that the coolant had been continuously running, causing the battery to completely drain. The contact was informed that the battery needed to be replaced, the radiator needed to be flushed, and the repair of a small oil leak was needed. The vehicle was repaired. The VIN was included in NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System). While driving to the dealer, the loss of communication with the coolant pump warning light illuminated. The contact was informed that the coolant pump had passed the inspection and did not need to be replaced. The contact was informed that the shield was installed as per the recall. The contact stated that upon retrieving the vehicle from the dealer, the battery was completely drained. The contact was informed that the battery needed to be replaced. The dealer was informed that…”
“The contact owns a 2015 BMW 428I. The contact stated that while driving approximately 29 MPH, the vehicle started to overheat and experienced reduced power, and there was smoke coming from under the hood. The contact stated that there were unknown warning lights illuminated. The contact was able to drive to the residence. Additionally, while driving at 40 MPH, the failure recurred, and the vehicle stalled. The contact was able to pull over to the side of the road. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not contacted. The failure mileage was unknown.”
“The contact owns a 2015 BMW 428i. The contact stated that upon starting the vehicle in colder weather conditions, there was an abnormal clicking sound coming from under the hood. The contact stated that the failure posed a potential safety risk while commuting long distances. Upon further investigation, the contact associated the failure with BMW Lawsuit Case: 17-CV-07386. The manufacturer was notified of the failure by phone, and a case was filed. The failure mileage was approximately 77,000.”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| 428i Coupe Auto (S8), 4 cyl, 2.0 L, Turbo · Rear-Wheel Drive | 23 | 34 | 27 | $2,850 | 327 |
| 428i Convertible Auto (S8), 4 cyl, 2.0 L, Turbo · Rear-Wheel Drive | 23 | 33 | 26 | $3,000 | 338 |
| 428i Coupe Man 6-spd, 4 cyl, 2.0 L, Turbo · Rear-Wheel Drive | 22 | 33 | 26 | $3,000 | 344 |
| 428i Gran Coupe Auto (S8), 4 cyl, 2.0 L, Turbo · Rear-Wheel Drive | 23 | 33 | 26 | $3,000 | 338 |
| 435i Coupe Auto (S8), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive | 21 | 31 | 25 | $3,100 | 361 |
| 435i Gran Coupe Auto (S8), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive | 21 | 31 | 25 | $3,100 | 361 |
| 435i Convertible Auto (S8), 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive | 20 | 30 | 24 | $3,200 | 376 |
| 435i Coupe Man 6-spd, 6 cyl, 3.0 L, Turbo · Rear-Wheel Drive | 20 | 29 | 24 | $3,200 | 378 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
5 safety recalls as of Nov 7, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 94 complaints with NHTSA. The most-cited components are electrical system (37), engine and engine cooling (26), engine (14). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2015 BMW 4 Series at 24–27 mpg combined, depending on engine and drivetrain (8 versions rated).