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2021 BMW 5 Series problems: engine and transmission complaints and recalls

ELEVATED COMPLAINT SIGNAL
33%
8 of 24 relevant owner complaints are about the engine, transmission or fuel system

33% of relevant owner complaints on the 2021 BMW 5 Series are about the engine, transmission or fuel system. That is elevated. Worth an independent inspection before you commit to one.

Better than 65% of the 1,789 model years we track (2010–2023).

Excludes 3 airbag, lighting and seat-belt recall complaints that would otherwise mask the signal (unadjusted: 30%).

NHTSA data checked October 3, 2026
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Does the 2021 BMW 5 Series have transmission problems?

More than most. The pattern is elevated rather than severe. 8 of 24 relevant complaints filed with NHTSA about the 2021 BMW 5 Series concern the engine, transmission or fuel system (33%), and the largest group is filed under power train (3). On a test drive, check for shuddering, slipping, delayed or harsh shifts, or a whine at speed. This describes the model year, not any one car: a well-maintained or already-repaired example can be fine, and a clean model year can still have a bad car in it.

Drivetrain complaints
8
engine, transmission, fuel
Total complaints
27
this model year
Fires reported
1
owner-reported
Recall campaigns
0
2 crashes · 0 injuries

Complaints by component

ELECTRICAL SYSTEM7 · 26%
SERVICE BRAKES4 · 15%
POWER TRAIN3 · 11%
ENGINE3 · 11%
UNKNOWN OR OTHER3 · 11%
FUEL/PROPULSION SYSTEM3 · 11%

The years either side

2010
70%
105 of 180
2011
no data
2012
no data
2013
no data
2014
no data
2015
no data
2016
81%
55 of 83
2017
no data
2018
36%
13 of 79
2019
44%
15 of 39
2020
too few complaints
2021
33%
8 of 27
2022
too few complaints
2023
too few complaints

Manufacturers fix things mid-generation. A bad year next to a clean one is common; the fix usually arrived in between.

Cleaner alternatives

Other luxury sedans with no elevated signal

The percentage is each model year's drivetrain complaint share. No elevated signal describes the model year, not any one car; a well-kept example of a flagged model can still be the right buy, and any of these still needs an inspection.

What owners reported

POWER TRAIN09/21/2026
In August 2026, the National Highway Traffic Safety Administration announced an active safety recall under campaign number 26V525000 for certain 2021–2023 BMW vehicles experiencing severe driveshaft-to-rear-differential connection failures that result in an immediate loss of motive power and vehicle rollaway risks. Sh…
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE07/10/2026
Starter engine failure. Car failed to start multiple times. Major safety hazard that can cause a short circuit, melt wiring harnesses, and spark an engine bay fire posing an immediate threat to life. Problem was inspected and confirmed by a dealer. Multiple waring lamps and messages appeared. Dealer report stated: STAR…
ENGINE03/21/2026
I have a 2021 BMW 530i. VIN [XXX] . I brought my vehicle to Pompano Beach BMW and Coconut Creek BMW in Florida. They said both my motor mounts have collapsed. I have discussed the matter with other experts and mechanics, and been told the failure of motor mounts is a serious safety issue and vehicle defect. INFORMATION…

Three of 8 drivetrain complaints. The full report shows more, with quotes about the engine in the car you are looking at first.

Before you buy a 2021 BMW 5 Series

Questions people ask about the 2021 BMW 5 Series

Does the 2021 BMW 5 Series have transmission problems?

More than most; the pattern is elevated rather than severe. 8 of 24 relevant complaints filed with NHTSA about the 2021 BMW 5 Series concern the engine, transmission or fuel system (33%). Before buying one, have an independent mechanic check the transmission and ask the seller whether it has been repaired or replaced.

Are there engine or transmission recalls on the 2021 BMW 5 Series?

NHTSA lists no recall campaigns on the 2021 BMW 5 Series.

Which BMW 5 Series years are better?

The 2021 has the lowest engine and transmission complaint share of the BMW 5 Series years we track (33%). The other years run higher.

Should I buy a 2021 BMW 5 Series?

That depends on the car in front of you, not just the model year. The 2021 BMW 5 Series has an elevated transmission complaint pattern, so treat it as a car that needs proof: service records showing transmission work, a cold-start test drive, and an independent pre-purchase inspection focused on the transmission. A well-kept or already-repaired example can be a fine car; an unknown one is a gamble.

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Experimental model-level information. This is not a vehicle inspection, vehicle-history report, financial advice or purchase recommendation. It describes patterns across a model year, not the condition of any individual vehicle.