NHTSA vehicle safety data

2018 BMW 340I Recalls & Complaints

The 2018 BMW 340I has 1 NHTSA recall campaign and 3 owner complaints on file as of October 21, 2026. Recall repairs are usually free at an authorized BMW dealer.

NHTSA recall and complaint data for the 2018 BMW 340I. Recall data is refreshed daily from NHTSA.

2018 BMW 340I owner complaints

Owners have filed 3 complaints with NHTSA about the 2018 BMW 340I, describing incidents dated January 18, 2021 to October 25, 2023.

Most-cited components

Engine 2 complaints
Fuel/Propulsion System 1 complaint

Of the 3 complaints on file, 1 reports a fire (owner-reported, not verified by NHTSA).

Newest complaints

ODI #11552110 · Filed October 26, 2023
The radiator failed due to rocks flying through the grill and smashing the radiator causing coolant to flow out of the radiator which could cause deadly issues if a car has no coolant while operating. Bmw knows this is an issue and refuses to warranty/recall the parts. They know its an issue because…
ODI #11518472 · Filed April 22, 2023
Fuel Tank Filler Hose Collapse - unable to refuel and vehicle remains stranded.
ODI #11399787 · Filed March 8, 2021
RETURNING FROM A LOCAL GROCERY STORE I DROVE INTO OUR GARAGE AND SHUT OFF THE ENGINE. IMMEDIATELY I HEARD A LOUD POP FROM THE ENGINE COMPARTMENT, LIKE FROM A FIRECRACKER, AND I SAW BLACK SMOKE COMING FROM THE HOOD AND FROM THE LEFT WHEEL WELL. I IMMEDIATELY TRIED TO RESTART THE CAR TO DRIVE OUT OF…

Read all 3 complaints

Crankshaft Sensor Firmware may Cause Stall

NHTSA #18V465000 · Engine and Engine Cooling — Engine · NHTSA notice

Reported July 11, 2018 · BMW of North America, LLC

Potentially affected: 5,309 vehicles

Repair completion: 98.21% (latest rate the manufacturer reported to NHTSA; dataset updated October 21, 2026)

Owners notified September 6, 2018 · Vehicles built May 16, 2018 – June 7, 2018 (per NHTSA)

Defect description

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.

Safety consequence

A vehicle stall can increase the risk of a crash.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

try.vin has no NCAP crash-test rating on file for the 2018 BMW 340I. NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

3 owner complaints have been filed with NHTSA for the 2018 BMW 340I.

Engine

ODI #11552110

Incident: October 25, 2023 · Filed: October 26, 2023

The radiator failed due to rocks flying through the grill and smashing the radiator causing coolant to flow out of the radiator which could cause deadly issues if a car has no coolant while operating. Bmw knows this is an issue and refuses to warranty/recall the parts. They know its an issue because after 12/17 every 340i came with a rock guard to protect the radiator but every car before that was just left to be victim of a potentially deadly situation including mine (manufactured 10/17). Bmw refuses to acknowledge the problem but the addition of the rock guard to cars after 12/17 should be enough evidence to show they knew it was an issue. Now all 2016-2018 m sport f30 chassis built before 12/7 are susceptible to this deadly situation and bmw refuses to cover for any damages even though they know it's a serious issue and they won't even cover the rock guard

Fuel/Propulsion System

ODI #11518472

Incident: April 3, 2023 · Filed: April 22, 2023

Fuel Tank Filler Hose Collapse - unable to refuel and vehicle remains stranded.

Engine

ODI #11399787

Fire

Incident: January 18, 2021 · Filed: March 8, 2021

RETURNING FROM A LOCAL GROCERY STORE I DROVE INTO OUR GARAGE AND SHUT OFF THE ENGINE. IMMEDIATELY I HEARD A LOUD POP FROM THE ENGINE COMPARTMENT, LIKE FROM A FIRECRACKER, AND I SAW BLACK SMOKE COMING FROM THE HOOD AND FROM THE LEFT WHEEL WELL. I IMMEDIATELY TRIED TO RESTART THE CAR TO DRIVE OUT OF THE GARAGE. NOTHING WORKED SO I PUSHED THE CAR OUT OF THE GARAGE BY HAND AND RELEASED THE HOOD LATCH. BY NOW THE HOOD'S EXTERNAL SAFETY LATCH WAS SO HOT I COULD NOT RELEASE IT. WITH THE HOOD CLOSED, I WAS UNABLE TO EXTINGUISH THE ENGINE FIRE USING A 15 LB CO2 AND A 5 LB ABC EXTINGUISHER. THE CITY FIRE DEPARTMENT ALSO WERE UNABLE TO EXTINGUISH THE FIRE UNTIL THEY SAWED THE HOOD IN HALF. THE 2 1/2 YEAR OLD CAR WAS A TOTAL LOSS. A EXPERT FROM BMW OF NORTH AMERICA INSPECTED THE CAR REPORTING THAT WAS TOO MUCH DAMAGE TO DETERMINE THE FIRE'S CAUSE. BMW NA CALLED TO REPORT THE RESULT NOT THEIR INVESTIGATION AND SAY THAT NO WRITTEN REPORT WAS AVAILABLE, ONLY THE VERBAL VERBAL FONECON.

Other BMW 340I model years

Check your 2018 BMW 340I VIN

Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your BMW 340I at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.

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