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SuspensionPart report

2021 BMW 330I Suspension Problems

Complaints
2about this part
Share
7%of 29 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the suspension of the 2021 BMW 330I, 7% of the 29 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“I bought my car in 2023 with 12,000 miles. I currently have 43,000 on it. I don’t drive it hard and have always had the maintenance done. I had my rear brakes replaced today at BMW and I was told my engine mounts have failed and need to be fixed asap. Was given a quote of 3000.00. My warranty expired literally 2 months ago. I’m told it’s dangerous to drive but how does this happen? Everything I read says they should be lasting 60,000-100,000 miles at least.”

NHTSA complaint #11700913, filed 2025-11

“The front axle support and the right front control arm bearing bracket may be separating, which is causing my vehicle to continually fall out of alignment. This ongoing issue is leading to accelerated tire wear, despite the fact that I have not driven many miles. The manufacturer needs to address the underlying cause, as the dealership continues to recommend alignments without resolving the root problem. I have already paid for two alignments, yet the vehicle consistently goes out of alignment again.”

NHTSA complaint #11700215, filed 2025-11

Related service bulletins

Suspension: other model years

YearComplaintsShare of year
202127%
202012%
200610%
2005311%
200212%
200154%

Other parts of the 2021 BMW 330I

Electrical system
13 complaints
Engine
8 complaints
Other or unknown
5 complaints
Air bags
4 complaints
Forward collision avoidance
3 complaints
Lane departure
2 complaints
Brakes
1 complaints
Engine cooling
1 complaints
Body and structure
1 complaints
Transmission and drivetrain
1 complaints
Visibility (wipers, defrost, mirrors)
1 complaints
Wheels
1 complaints

← All problems reported for the 2021 BMW 330I

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology