The Lemon Index

All cars · BMW 3 Series · 2018

2018 BMW 3 Series. Advanced data.

The raw numbers: engines, recall campaign numbers, failure mileage and manufacturer communications.

Lemon Index26100 = average car
Complaints22NHTSA, first 3 years
Sold75,957U.S. model year
Per 100K sold29complaints
Year rank#7 of 22#1 = fewest complaints

Engines and drivetrains 5

EngineTransmissionDriveCity / hwy / combinedFuelFuel cost/yr
3.0L 6-cyl turboManual 6-spdRWD17 / 25 / 20Premium$3,850
3.0L 6-cyl turboAuto (AM-S7)RWD16 / 22 / 19Premium$4,050
4.4L 8-cyl turboAuto (S8)AWD16 / 25 / 19Premium$4,050
4.4L 8-cyl turboManual 6-spdRWD15 / 22 / 17Premium$4,550
4.4L 8-cyl turboAuto (AM-S7)RWD14 / 20 / 16Premium$4,850

EPA test versions for this model year. Fuel cost is the EPA's current estimate, not the price in that year.

Failure mileage by system

Half of owners who gave a mileage reported the problem between 7,800 and 57,600 miles. Median 20,000, from 29 complaints with a mileage.

SystemMedianMiddle halfComplaints
Engine20,5006,100–41,1006
Electrical13,2009,000–99,4007

Mileage owners typed into their NHTSA complaint, all complaints for this model year. People report some problems late, so read it as a range.

Complaints by system

SystemShare of complaints
Engine23%
Electrical18%
Fuel system, diesel18%
Speed control14%
Fuel or ev drive system9%

One complaint can name more than one system, so shares can add to more than 100%.

Severity, all complaints

TotalCrashesFiresInjuriesDeathsTows
82654013

As reported by owners to NHTSA. Not verified.

Recall campaigns 1

  • 18V465000 Jul 2018 Engine And Engine Cooling / Engine

    Defect. 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

    Risk. A vehicle stall can increase the risk of a crash.

    Remedy. 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.

NHTSA investigations

StatusSubjectOpenedClosed
OpenHigh pressure fuel pump failure2023–
OpenDesiccated air bag inflator rupture2021–

Manufacturer communications 121

BMW filed 121 service communications for this car with NHTSA.

  • BUZZING NOISE FROM VALVETRONIC MOTOR BEFORE OR AFTER ENGINE OPERATION: Buzzing noise may be heard
  • SOS MALFUNCTION DISPLAYED This Service Information Bulletin (Revision 1) replaces SI B84 04 16…
  • Ccm displayed "increased battery drain" caused by controller

Crash ratings by version

VersionOverallFrontSideRollover
BMW 3 Series SW AWD★★★★★★★★★☆★★★★★★★★★★
BMW 3 Series 4 DR AWD★★★★★★★★★☆★★★★★★★★★★
BMW 3 Series 4 DR RWD★★★★★★★★★☆★★★★★★★★★★
BMW 3 Series GT 5 HB AWD★★★★★★★★★☆★★★★★★★★★★

Safety equipment

Electronic stabilityForward collision warningLane departure warning
StandardOptionalOptional

YouTube repair topics

87 videos about the 2012–2018 BMW 3 Series (F30), 33.5M views.

TopicVideosViews
Timing chain & engine62.3M
Brakes & ABS81.6M
Oil changes & service41.4M
No-start: theft light, key & ignition21.2M
Gauges, lights & wiring4819K
Oil leaks & gaskets3608K
Transmission & shifter1457K
Windows, doors & mirrors1240K

Nearby model years

YearLemon IndexComplaintsSoldTop system
20152535140,609Brakes
20163541106,221Engine
2017151699,083Engine
2018262275,957Engine
2019131073,287Engine
2020422250,937Engine
2021171272,398Engine

Sources: NHTSA complaints, recalls, investigations and manufacturer communications; EPA fuel economy data; YouTube video titles. Complaints are owner reports, not proof of a defect.

Updated

Free to use with credit: Source: The Lemon Index (lemonindex.com). Get the data