2021 BMW M340I Xdrive Mhev Auto 3.0L Hybrid electric (clean) · BU57 AAW
2021 BMW M340I Xdrive Mhev Auto (3.0L, hybrid electric (clean)). First registered 01 Mar 2021. Recorded mileage 57,232 miles. MOT valid until 16 Sept 2027. Taxed until 01 Sept 2027.
- Make & Model
- BMW M340I XDRIVE MHEV AUTO
- Year / Origin
- 2021 · Birmingham
- Safety Recall
- Unknown
- MOT Status
- Valid until 16 Sept 2027
- Road Tax
- Taxed (01 Sept 2027)
- Recorded Mileage
- 57,232 mi
- ULEZ Compliance
- ULEZ Exempt (Zero Emissions)
- Fuel & Engine
- Hybrid Electric (Clean) · 3.0L
- Reliability Guide
- Common Faults
Thinking of buying this vehicle? Free MOT and tax checks do not cover legal ownership. If outstanding finance exists, finance companies have legal right to repossess without compensation.
BU57 AAW Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 18/09/2026
- 57,232 miles recorded at latest MOT
- 1 historical MOT failure
- 1 defect noted at the latest MOT
- Recurring tyres items (2 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
BU57 AAW MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
5 MOT tests are recorded for this 2021 BMW M340I Xdrive Mhev Auto (BU57 AAW) between February 2024 and September 2026.
The record contains 4 passes and 1 failure.
The most recent test on 18 September 2026 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Tyres (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 2 advisory notices are recorded. Advisories flag items that passed but may need attention before the next test; they are not evidence of how well the vehicle has been serviced.
Recorded failure items include: “Front Registration plate inscription missing (0.1 (b))”.
BU57 AAW Mileage History
- 12/02/202432,664 mi
- 07/03/202539,655 mi+6,991 mi
- 17/09/202542,885 mi+3,230 mi
- 18/09/202657,232 mi+14,347 mi
- 18/09/202657,232 mi
Average of roughly 9,453 miles per year across 5 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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MOT Roadworthiness: Excellent
This rating reflects historical MOT pass rates and recurring advisory wear patterns from official DVSA test logs. Note that roadworthiness does not verify outstanding finance, insurance write-offs, or stolen records.
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Digital Service History
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Buyer's Guide & Inspection Advisory
Expert automotive synthesis from historical MOT defect records and market benchmarks.
Our Verdict
This BMW M340i is a compelling performance saloon that appears to have been well-maintained. We recommend proceeding with the purchase, provided you verify that the window tints comply with legal requirements and the service history is fully documented.
When inspecting this vehicle, focus heavily on the service history. The M340i is a high-performance machine that relies on strict adherence to BMW's service schedule, particularly regarding oil changes for the B58 engine. Ensure that the digital service record is up to date and that any major maintenance, such as brake fluid changes, has been performed on time.
Furthermore, check the condition of the tyres. The vehicle failed an MOT in 2024 due to a cut in a rear tyre, which suggests the previous owner may have been driving on surfaces that caused damage or had an incident with road debris. Ensure the current set of tyres are of a premium brand, as these are essential for managing the M340i's significant power and xDrive handling.
As a mild-hybrid (MHEV), this model offers a slight improvement in efficiency over older non-hybrid variants, though it remains a high-performance vehicle with corresponding fuel consumption. You should expect to pay premium rates for insurance given the 374bhp output, and road tax will be subject to the standard rates for this vehicle class.
Maintenance costs for an M-Performance BMW are higher than standard 3-series models. Budget for premium tyres, performance brake pads, and potentially higher servicing costs at authorised BMW centres. Annual running costs, excluding depreciation, are estimated to be between £2,500 and £3,200 depending on your annual mileage.
Inspect the front side windows closely; the 2025 MOT noted they were 'excessively tinted'. While they passed, you should ensure they do not impede your visibility at night or in poor weather, and be aware that they may attract police scrutiny if they fall below the legal light transmission limit.
Mechanically, check the alloy wheels for signs of kerbing, as the low-profile tyres on these models are prone to damage. Listen for any unusual noises from the drivetrain during a test drive, particularly when the xDrive system is engaging, and ensure the hybrid battery system displays no warning lights on the dashboard.
This 2021 M340i xDrive presents as a well-cared-for example with a consistent MOT history. While it has covered approximately 43,000 miles, the vehicle has successfully passed its most recent inspections with no recorded defects. The minor advisory for window tints is a point to note, but it does not detract from the car's overall mechanical health.
The B58 engine found in the M340i is widely regarded as one of BMW's most reliable modern powerplants, with no significant systemic failure patterns noted in current MOT records.
Reviewed by the IsItAGoodCar editorial team — Verified automotive analysis synthesized from official vehicle registries.
Data Sources
DVSA
Official MOT test logs & failure reasons
DVLA
Tax, registration & powertrain specs
Experian
Finance, stolen markers & total loss
AI Analysis
Historical fault & advisory patterns
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