2021 MINI Cooper S Hardtop 4 Door Problems & Issues
2021 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated November 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 MINI Cooper S Hardtop 4 Door has 3 documented known issues. None of the listed issues is rated critical; this is not a complete reliability assessment. DIY maintenance guides at au7o.io.
2021 · Cooper S Hardtop 4 Door · All engines
Choose the year and equipment to match the visual and written issues.
No email neededHow interest is saved
Interest applies to the selected vehicle and configuration; it is not a reservation. Voting stores a first-party identifier for up to 180 days to prevent repeat votes. No account or email is needed. Clearing cookies or using another device may count separately. Privacy
Visual coming soon
Your interest helps us choose what to build next.
Visual Known Issues · Coming soon
$7.99/month plus taxes at launch on January 1, 2027 · No payment today
All 3 Known Issues
Join 700+ subscribers following Au7o for vehicle insights and updates.
Don't see your problem? Describe your symptoms to get a diagnosis, or get a full repair guide.
Other MINI Models
Frequently Asked Questions
What are the most common MINI Cooper S Hardtop 4 Door problems?
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 2021 MINI Cooper S Hardtop 4 Door has 3 documented issues. Documented issues include: EVAP purge valve can cause rough idle and hard starting; coverage extended to 15 years/150,000 miles — bulletin SI M01 03 24, Thumping or groaning from the front axle: strut auxiliary damper separates from the support bearing — bulletin SI M31 01 26, Remote Services stop working when the car is parked and locked — service action SI M84 02 26. None are rated critical, but regular maintenance is recommended.
Is the MINI Cooper S Hardtop 4 Door reliable?
The 2021 MINI Cooper S Hardtop 4 Door has 3 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. None of the matching records is rated critical; this is not a complete reliability assessment. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
What is the 2018-2024 MINI Cooper S Hardtop 4 Door EVAP purge valve can cause rough idle and hard starting; coverage extended to 15 years/150,000 miles — bulletin SI M01 03 24?
MINI says the EVAP system's purge (vent) valve can develop material problems (micro leaks) and operational issues over time. This can cause hard starting and a rough-running engine, especially at idle, an audible metallic noise from the valve, stored mixture-lean or tank-ventilat… Severity: medium.
What is the 2015-2024 MINI Cooper S Hardtop 4 Door Thumping or groaning from the front axle: strut auxiliary damper separates from the support bearing — bulletin SI M31 01 26?
A thumping noise can be heard from the front axle over uneven roads, and in some weather a groaning noise during steering. MINI says the cause is the auxiliary damper detaching from the strut support bearing (guide support). Applies to: MINI Hardtop 4 Door (F55), all production f… Severity: low.
What is the 2018-2024 MINI Cooper S Hardtop 4 Door Remote Services stop working when the car is parked and locked — service action SI M84 02 26?
Once the telematics module (TCB2) goes into sleep mode, a Remote Services request (remote engine start, lock/unlock, climate conditioning) sent through MINI Data Services cannot wake it, so Remote Services do not work while the car is parked and locked. MINI attributes this to un… Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.