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2016-2023 · 8 model years

BMW 4 Series Problems by year

Owners have filed 149 complaints about the BMW 4 Series across 8 model years, and it has 1 recall. The 2018 has the most complaints once its age is allowed for (34). The most reported problem area is the engine & cooling, followed by the electrical system.

Most complaints for its age201834 complaints · 0 recallsSee the 2018
Complaints
149
Recalls
1
Crashes
11
Fires
2
Injuries
17
Deaths
0

4 Series complaints by model year

Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.

YearComplaintsRecallsCrashesFiresTop problemGrade
20230100-A
20229000Engine & coolingB
202115000Electrical systemC
20203010AirbagsB
201916020Engine & coolingC
201834052Engine & coolingF
201723010Engine & coolingC
201649020Engine & coolingF

Most common 4 Series problems

BMW 4 Series recalls 1

Latest 4 Series complaints

2022 BMW 4 SeriesEngine & cooling

At approximately 31,000 miles, the factory hydraulic engine mounts experienced an active fluid leak and mechanical failure during routine operation. This vehicle has been regularly maintained and operated strictly under normal passenger driving conditions. The premature loss of internal hydraulic fluid compromises the structural support and alignment of the engine assembly. In this chassis, collapsed or leaking engine mounts allow excessive engine displacement, rotation, and torsional movement under acceleration...

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and braking. This condition creates direct safety hazards: (1) Significant driveline misalignment that increases stress on adjacent critical components, including the exhaust downpipe, turbocharger plumbing, charge-air ducts, and drivetrain couplings. (2) Risk of premature failure or fatigue cracking of the exhaust and intake plumbing, presenting potential exhaust gas intrusion or sudden loss of engine power under load. (3) Excessive powertrain vibration and shifting that impairs vehicle control, throttle response predictability, and transmission engagement during lane changes, merging, or emergency maneuvers. A failure of primary structural engine mounts at 31,000 miles indicates a manufacturing or material defect in the hydraulic bladder and seal design. Because this issue appears widespread across modern BMW 2.0L (B48) platforms, I request that the NHTSA investigate this premature structural failure for potential recall or safety defect determination.

Filed Incident EngineNHTSA 11776515
2022 BMW 4 SeriesEngine & cooling

COMPONENT: Engine mounts (left and right hydraulic engine mounts). Both are still installed on the vehicle and are available for inspection on request. FAILURE DESCRIPTION: I began hearing a knocking noise from the engine bay whenever I accelerated. I first noticed it on approximately August 19, 2026. The noise occurred under acceleration only and was not present at idle. There were no warning lamps, dashboard messages, or check engine indicators at any point before or after the noise began, and none are present...

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now. The knocking noise was the only symptom. CONFIRMED BY DEALER: Yes. I brought the vehicle to Long Beach BMW Service Center on August 29, 2026 at 31,990 miles. The technician inspected the vehicle and found that the left engine mount had collapsed and was leaking hydraulic fluid, and that the right engine mount was deteriorating toward the same condition. The finding is documented on repair order 952722, which I can provide. OTHER INSPECTIONS: The vehicle has not been inspected by the manufacturer, police, or insurance representatives. I have contacted BMW of North America Customer Relations regarding the failure. SAFETY CONCERN: A collapsed engine mount allows excessive engine and drivetrain movement under acceleration and load. This transmits shock into surrounding components and can lead to damage of adjacent lines, wiring, and exhaust components over time. The condition also produces unpredictable drivetrain movement during acceleration, which affects vehicle stability and driver control. ADDITIONAL CONTEXT: The vehicle was purchased new in October 2021 and has 31,000 miles. It has never been in an accident, has never been modified or tuned, and has been driven lightly and conservatively. A hydraulic engine mount failing at this mileage under these conditions is not consistent with normal wear. Both mounts failed or began failing simultaneously.

Filed Incident EngineNHTSA 11761475
2022 BMW 4 SeriesElectrical system

The contact owns a 2022 BMW 430I. The contact received notification of NHTSA Campaign Number: 26V056000 (Electrical System). The dealer was contacted, and the contact was informed that the part for the recall repair would be unavailable for six weeks. The manufacturer was not contacted. The contact had not experienced a failure.

Filed Incident Electrical systemNHTSA 11755887
2022 BMW 4 SeriesElectrical system

Recall issued January 2026. Letter mailed to me (owner) re: recall in March 2026. Now May 18, 2026 and still no notification as to when this recall will be remedied. Risk is stated as follows: vehicle may catch on fire while operating or also while parked when engine is not running. So instructed to park vehicle outside garage. Recall No 26V-056 Engine Starter BMW 430i year 2022. Purchased at Fields BMW Daytona.

Filed Incident Electrical systemNHTSA 11738500
2022 BMW 4 SeriesEngine & cooling

BMW Manufacturer Recall for fire hazad in starter for ths model first issued Oct 2025! NHTSA Recall Number26V056 Recall StatusRecall Incomplete, remedy not yet available as of May 1, 2026 My complaint is about the delay in a remedy from BMW - it's been more than 4 months!! This is not"timely"

Filed Incident EngineNHTSA 11735171
2021 BMW 4 SeriesEngine & cooling

The recall was issued more than 8 months ago but the remedy is still not yet available, which is very concerning as the problem may cause the event of fire even when the vehicle is parked. Issued SEP 23, 2025 Description of Problem It is possible for water to contact and enter the engine starter. This could lead to corrosion which could cause a short circuit. Safety Risk This could increase the risk of a thermal event or fire during driving or even when the vehicle is parked and the ignition is off.

Filed Incident EngineNHTSA 11734108

Questions about the BMW 4 Series

Which BMW 4 Series years have the most problems?

By the number of complaints owners filed with NHTSA: 2016 (49), 2018 (34), 2017 (23). Allowing for how long each has been on the road, the 2018 stands out most. Complaint counts also rise with sales, so compare years of the same model rather than different models.

Which BMW 4 Series years have the fewest complaints?

Among model years that have been on the road for at least three years, 2023, 2020, 2022 have the best Safety Index - the fewest complaints, crashes and recalls for their age compared with other 4 Series years. Always check the exact vehicle's recalls by VIN before you buy.

What are the most common BMW 4 Series problems?

Across every model year, owners report problems with the engine & cooling (68), electrical system (39), seats & seat belts (15) most often.

How many recalls does the BMW 4 Series have?

NHTSA lists 1 recall across all BMW 4 Series model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

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