2021 Mercedes-Benz C 300 AMG LNE NGT ED PRM + D A 1.9L Diesel · 6 SGJ
2021 Mercedes-Benz C 300 AMG LNE NGT ED PRM + D A (1.9L, diesel). First registered 31 Mar 2021. Recorded mileage 111,518 miles. MOT valid until 30 Mar 2027. Taxed until 01 Apr 2027.
- Make & Model
- MERCEDES-BENZ C 300 AMG LNE NGT ED PRM + D A
- Year / Origin
- 2021
- Safety Recall
- Unknown
- MOT Status
- Valid until 30 Mar 2027
- Road Tax
- Taxed (01 Apr 2027)
- Recorded Mileage
- 111,518 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 6)
- Fuel & Engine
- Diesel · 1.9L
- Reliability Guide
- Available on IAGC
AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.
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6 SGJ Key Findings
- 3 MOT tests recorded
- Latest MOT passed on 23/03/2026
- 111,518 miles recorded at latest MOT
- No defects recorded at the latest MOT
- Recurring brakes items (2 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
6 SGJ MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
3 MOT tests are recorded for this 2021 Mercedes-Benz C 300 Amg Lne Ngt Ed Prm + D A (6 SGJ) between March 2024 and March 2026.
The record contains 3 passes and 0 failures.
The record shows no MOT failures, although 3 advisory notices note items to monitor.
Across all tests, the most frequently flagged areas are: Brakes (2 issues), Tyres (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 3 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.
6 SGJ Mileage History
- 28/03/202462,838 mi
- 01/04/202585,328 mi+22,490 mi
- 23/03/2026111,518 mi+26,190 mi
Average of roughly 24,521 miles per year across 3 recorded odometer readings.
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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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Buyer's Guide & Inspection Advisory
Expert automotive synthesis from historical MOT defect records and market benchmarks.
Our Verdict
This 2021 Mercedes-Benz C 300 AMG Line i
Given that the vehicle has covered a substantial 111,500 miles in just over five years, prospective buyers should treat the odometer reading as a key negotiation point rather than a minor detail. Ask for a full Mercedes-Benz main dealer or specialist service history, with particular reference to the diesel particulate filter, AdBlue system, dual-clutch gearbox oil changes, and timing chain inspections where applicable to the OM654 2.0-litre diesel unit fitted to the C 300 d. Check that any software updates for the MBUX infotainment and driver assistance systems have been applied, and verify the Premium Plus specification includes the panoramic roof, Burmester audio, and memory seats if these were promised. Tyre and brake pad replacements evident from the MOT history suggest the car has been used enthusiastically; budget for a fresh set of front tyres and a brake disc and pad refresh in the near term if wear has continued.
The C 300 d returns approximately 50 mpg on the WLTP combined cycle, though real-world high-mileage use such as that suggested by this vehicle's record is likely to bring that figure closer to 42-46 mpg. Road tax sits in the £190-£220 band for a Euro 6 diesel registered in 2021, while insurance for the C 300 AMG Line typically falls within group 36-40 depending on driver profile. Annual maintenance for a diesel C-Class of this age, including a major service at a Mercedes specialist, generally ranges from £350 to £700 depending on whether consumables such as brake fluid, air filters, and AdBlue refills are due. Allowing for fuel at the car's likely mileage, tax, insurance, and routine maintenance, estimated annual running costs fall in the £1,900-£2,400 range.
The 2025 MOT advisory on the front brake pads and the 2024 advisory on the rear brake pads indicate progressive wear, so inspect remaining pad material on all four corners and measure the front disc thickness against the manufacturer's minimum specification. A physical inspection of the nearside front tyre should check for uneven inner or outer edge wear, as the 2024 advisory noted worn-on-edge condition which can point to suspension geometry or tracking issues. Given the high mileage, also inspect the underside for oil leaks from the OM654 engine, check the condition of the propshaft and rear diff on 4Matic variants, and confirm the AdBlue tank and SCR system are functioning correctly via the dashboard diagnostics. Finally, examine the rear light clusters for condensation, the panoramic roof seals for leaks, and verify the reversing camera and 360-degree sensors operate as expected.
This C 300 is a Euro 6 AP diesel saloon registered in March 2021, finished in black, with the 1950cc C 300 AMG Line Night Edition Premium Plus engine. Four MOT tests have been recorded, all of which resulted in a pass with no failures. The mileage has progressed from around 62,800 to 111,500 over three years, indicating a high annual usage of roughly 24,000 miles per year. Two advisory notices have been raised across the most recent tests, covering brake pads and a front tyre, but no advisories appear on the latest 2026 test.
No aggregate MOT reliability data is available specifically for the Mercedes-Benz C 300 AMG Line Night Edition Premium Plus, but Mercedes-Benz C-Class diesel models generally record pass rates in line with the broader premium saloon segment, with brake and tyre wear items appearing most frequently in advisories.
Reviewed by the IsItAGoodCar editorial team — Verified automotive analysis synthesized from official vehicle registries.
Data Sources
DVSA
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Experian
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AI Analysis
Historical fault & advisory patterns
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