The 2018 BMW 3 Series is associated with 59 official NHTSA owner defect complaints and 6 safety recall campaigns in the federal safety database. The most frequently reported component area is Engine, accounting for 11 reports (19% of total complaints). EPA testing covers 17 certified vehicle configurations spanning 2l 4-cyl, 2L 4-Cyl plug-in hybrid, and 3l 6-cyl configurations. Gasoline and hybrid variants deliver 23 to 36 MPG combined. Plug-in hybrid variants are rated up to 71 MPGe (30 MPG on gasoline) with up to 14 miles of electric driving range. The 2018 BMW 3 Series belongs to the 6th generation (F30) 3 Series platform spanning model years 2015–2019.
Key Data Findings
- • NHTSA Owner Complaints: 59 reports
- • Safety Recall Campaigns: 6 campaigns
- • Top Reported Defect Area: Engine (11 / 19%)
- • Safety Incident Signals: 5 crash / 4 fire / 4 injury reports
- • NHTSA Overall Safety Rating: 5 / 5 Stars
- • EPA Efficiency: 23–36 MPG (17 variants • PHEV up to 71 MPGe)
Data Note: Compiled directly from official NHTSA Office of Defects Investigation (ODI), NHTSA 5-Star Safety Ratings, and EPA FuelEconomy.gov databases.
| Variant | Engine | Drivetrain | Transmission | City | Highway | Combined | EV Range | Est. Annual Fuel Cost |
| 328d Diesel | 2L 4-Cyl | Rear-Wheel Drive | Automatic (S8) | 31 MPG | 43 MPG | 36 MPG | — | $2,200 / yr |
| 328d xDrive Diesel | 2L 4-Cyl | All-Wheel Drive | Automatic (S8) | 30 MPG | 40 MPG | 34 MPG | — | $2,350 / yr |
| 328d xDrive Sports Wagon Diesel | 2L 4-Cyl | All-Wheel Drive | Automatic (S8) | 30 MPG | 40 MPG | 34 MPG | — | $2,350 / yr |
| 330e Plug-in Hybrid | 2L 4-Cyl | Rear-Wheel Drive | Automatic (S8) | 66 MPGe (28 MPG) | 78 MPGe (34 MPG) | 71 MPGe (30 MPG) | 14 mi EV (350 mi total) | $2,550 / yr |
| 320i | 2L 4-Cyl | Rear-Wheel Drive | Automatic (S8) | 24 MPG | 35 MPG | 28 MPG | — | $2,700 / yr |
| 330i | 2L 4-Cyl | Rear-Wheel Drive | Automatic (S8) | 24 MPG | 34 MPG | 27 MPG | — | $2,800 / yr |
| 330i xDrive | 2L 4-Cyl | All-Wheel Drive | Automatic (S8) | 23 MPG | 33 MPG | 27 MPG | — | $2,800 / yr |
| 320i | 2L 4-Cyl | Rear-Wheel Drive | Manual 6-spd | 23 MPG | 35 MPG | 27 MPG | — | $2,800 / yr |
| 320i xDrive | 2L 4-Cyl | All-Wheel Drive | Automatic (S8) | 23 MPG | 34 MPG | 27 MPG | — | $2,800 / yr |
| 330i xDrive Gran Turismo | 2L 4-Cyl | All-Wheel Drive | Automatic (S8) | 23 MPG | 33 MPG | 27 MPG | — | $2,800 / yr |
| 330i xDrive Sports Wagon | 2L 4-Cyl | All-Wheel Drive | Automatic (S8) | 23 MPG | 33 MPG | 27 MPG | — | $2,800 / yr |
| 340i | 3L 6-Cyl | Rear-Wheel Drive | Automatic (S8) | 21 MPG | 32 MPG | 25 MPG | — | $3,050 / yr |
| 340i xDrive | 3L 6-Cyl | All-Wheel Drive | Automatic (S8) | 21 MPG | 31 MPG | 25 MPG | — | $3,050 / yr |
| 330i | 2L 4-Cyl | Rear-Wheel Drive | Manual 6-spd | 21 MPG | 32 MPG | 25 MPG | — | $3,050 / yr |
| 340i | 3L 6-Cyl | Rear-Wheel Drive | Manual 6-spd | 19 MPG | 29 MPG | 23 MPG | — | $3,300 / yr |
| 340i xDrive | 3L 6-Cyl | All-Wheel Drive | Manual 6-spd | 19 MPG | 29 MPG | 23 MPG | — | $3,300 / yr |
| 340i xDrive Gran Turismo | 3L 6-Cyl | All-Wheel Drive | Automatic (S8) | 20 MPG | 29 MPG | 23 MPG | — | $3,300 / yr |
Data Boundary Note: EPA specifications are shown by certified vehicle configuration. NHTSA complaints and recall totals are recorded at the model-year level across all configurations.
| Tested Drivetrain / Cab Variant | Overall Rating | Frontal Crash | Side Crash | Rollover Rating | Rollover Risk |
| SW AWD | | | | | 9.5% |
| 4 DR AWD | | | | | 9.5% |
| GT 5 HB AWD | | | | | 9.5% |
| PHEV 4 DR RWD | Not Rated | Not Rated | Not Rated | Not Rated | — |
| 4 DR RWD | | | | | 9.5% |
Active Driver Assistance Systems (NHTSA Recorded): Forward Collision Warning (FCW) is documented as Optional and Lane Departure Warning (LDW) is documented as Optional in official NHTSA records for tested 2018 BMW 3 Series models.
View complete 2018 BMW 3 Series crash test & safety breakdown →
Top Reported Problem Categories
Ranked by total consumer complaint submissions recorded by NHTSA
Data Attribution & Context: Complaints are self-reported by vehicle owners to NHTSA and represent unverified consumer submissions. Complaint volume does not equal a statistically controlled failure rate and is not adjusted for total vehicles sold or cumulative mileage driven.
View all 2018 BMW 3 Series problems & component breakdown (27 categories) →
Affected Component: FUEL SYSTEM, DIESEL
Defect Summary: BMW of North America, LLC (BMW) is recalling certain 2018 328D SportsWagon, 328D xDrive SportsWagon, 328D xDrive, and 328D 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.
Free Manufacturer Remedy: Dealers will replace the EGR cooler, inspect and replace the intake manifold, if necessary, and clean the EGR pipe connecting the cooler to the manifold, free of charge. Owner notification letters are expected to be mailed December 5, 2025. Owners may contact BMW customer service at 1-800-525-7417. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 5, 2025. This recall is an expansion of previous recall number 21V907.
Affected Component: FUEL SYSTEM, DIESEL
Defect Summary: 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.
Free Manufacturer Remedy: 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.
Affected Component: FUEL SYSTEM, DIESEL:DELIVERY:FUEL PUMP
Defect Summary: 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.
Free Manufacturer Remedy: 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.
View all 2018 BMW 3 Series recalls & campaign history (6 campaigns) →