Model year guide

2018 BMW 340i

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2018 BMW 340i is worth — from official NHTSA and EPA data. 6 on record.

2018 BMW 340i at a glance

Safety recalls1
Combined23–25 mpg

Free: that car's specs and build sheet, model-year recall campaigns and a fair price.

2018 BMW 340i recalls 1

Engine And Engine Cooling:engine NHTSA Campaign #18V465000 · 12/07/2018

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 xD…

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.

Source: U.S. NHTSA. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2018 BMW 340i MPG & running costs

Combined23–25 mpg
City20 mpg
Highway31 mpg
Est. annual fuel cost$3,425

Source: U.S. EPA / DOE fueleconomy.gov. The EPA lists 2 versions of this model year; combined is shown as a range and the other figures are averages.

Estimated 5-year cost to own

A rough guide to what running a 2018 BMW 340i costs over five years and 75,000 miles.

Fuel (5 yrs)$17,125
Fuel only$17,125
Per mile$0.23

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

2018 BMW 340i trims & engines on record

Trims
SA · xDrive · xDrive SA · xDrive GT
Engines
3.0L 6-cyl 320 hp

2018 BMW 340i vehicles on record

Other BMW 340i model years

2018 BMW 340i — frequently asked questions

Does the 2018 BMW 340i have any safety recalls?

NHTSA lists 1 recall campaign for the 2018 BMW 340i. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are free.

What gas mileage does the 2018 BMW 340i get?

The 2018 BMW 340i has U.S. EPA estimates of 23–25 mpg combined, depending on engine and trim (2 versions).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.