Mercedes-Benz B-Class
Black · Diesel · 2014 · 1,461 cc
T21 OONMOT history
T21 OON is a black diesel Mercedes-Benz B-Class first used on 27 Nov 2014. Its MOT is valid until 14 Mar 2027 and it has passed 10 of 17 MOT tests, with 66,936 miles recorded at the latest.
From DVSA MOT records, updated 11 Mar 2026.
- MOT
- Valid
- Until 14 Mar 2027
- Mileage
- 66,936 mi
- At MOT on 11 Mar 2026
- MOT tests
- 17
- 10 passed · 7 failed
- Per year
- 7,708 mi
- Average between MOTs
Vehicle details
- Registration
- T21 OON
- Registration format
- Prefix (1983 to 2001)
- Make
- Mercedes-Benz
- Model
- B-Class
- Colour
- Black
- Fuel type
- Diesel
- Engine size
- 1,461 cc
- Year of manufacture
- 2014
- First used
- 27 Nov 2014
- MOT status
- MOT valid until 14 Mar 2027
- Latest MOT test
- 11 Mar 2026 (Pass)
Mileage history
T21 OON was last recorded at 66,936 miles on 11 Mar 2026, 12,212 miles more than at the previous MOT on 12 Mar 2025.
Mileage went down between tests
- 29 Aug 2018: 6,116 miles, lower than 6,202 miles on 24 Apr 2018.
A replacement instrument cluster, a recording error at the test or odometer tampering can cause this.
- Previous MOT
- 54,724 miles · 12 Mar 2025
- Between the last two tests
- 12,212 miles
- Average per year
- 7,708 miles
Recorded mileage by year
- 2026 – 66,936 miles
- 2025 – 54,724 miles
- 2024 – 43,460 miles
- 2023 – 34,587 miles
- 2022 – 26,874 miles
- 2021 – 19,667 miles
- 2019 – 11,394 miles
- 2018 – 6,116 miles
What the latest MOT found
Pass66,936 milesPassed on retest after failing earlier that day
- AdvisoryFront Brake disc worn, pitted or scored, but not seriously weakened both sides heavily worn (1.1.14 (a) (ii))
Recurring issues
Items recorded at more than one earlier MOT but not at the latest one. Repeat advisories can show maintenance that was put off.
Rear Brake disc worn, but not excessively both sides
Advisory2 MOTs, 2024
Rear Brake pad(s) wearing thin
Advisory2 MOTs, 2024
Engine MIL inoperative or indicates a malfunction
Major2 MOTs, 2021–2023
Offside Front tyre perished in tread.
Advisory2 MOTs, 2018
Full MOT history
17 tests since 3 Oct 2017, newest first. Select a test to see every defect and advisory.
Pass66,936 miles1 advisory
- MOT expiry
- 14 Mar 2027
- Odometer
- 66,936 miles
- Test number
- 669380133913
- AdvisoryFront Brake disc worn, pitted or scored, but not seriously weakened both sides heavily worn (1.1.14 (a) (ii))
Fail66,936 miles (+12,212)1 major1 advisory
- MOT expiry
- No new certificate
- Odometer
- 66,936 miles
- Test number
- 478333286147
- MajorOffside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii))
- AdvisoryFront Brake disc worn, pitted or scored, but not seriously weakened both sides heavily worn (1.1.14 (a) (ii))
Pass54,724 miles1 advisory
- MOT expiry
- 14 Mar 2026
- Odometer
- 54,724 miles
- Test number
- 901919175491
- AdvisoryOffside Rear Tyre worn close to legal limit/worn on edge worn low (5.2.3 (e))
Fail54,724 miles (+11,264)1 dangerous2 advisories
- MOT expiry
- No new certificate
- Odometer
- 54,724 miles
- Test number
- 589704161904
- DangerousFront Outer Brake pad(s) less than 1.5 mm thick both sides (1.1.13 (a) (ii))
- AdvisoryFront Brake disc worn, pitted or scored, but not seriously weakened (1.1.14 (a) (ii))
- AdvisoryOffside Rear Tyre worn close to legal limit/worn on edge worn low (5.2.3 (e))
Pass43,460 miles (+204)2 advisories
- MOT expiry
- 14 Mar 2025
- Odometer
- 43,460 miles
- Test number
- 199051885451
- AdvisoryRear Brake disc worn, but not excessively both sides (1.1.14 (a) (i))
- AdvisoryRear Brake pad(s) wearing thin (1.1.13 (a) (ii))
Fail43,256 miles (+8,669)1 major2 advisories
- MOT expiry
- No new certificate
- Odometer
- 43,256 miles
- Test number
- 422580405701
- MajorRegistration plate lamp inoperative in the case of a single lamp or all lamps both lamps (4.7.1 (b) (ii))
- AdvisoryRear Brake disc worn, but not excessively both sides (1.1.14 (a) (i))
- AdvisoryRear Brake pad(s) wearing thin (1.1.13 (a) (ii))
Pass34,587 miles (+29)
- MOT expiry
- 6 Mar 2024
- Odometer
- 34,587 miles
- Test number
- 512378061663
No defects or advisories recorded.
Fail34,558 miles (+7,684)2 major
- MOT expiry
- No new certificate
- Odometer
- 34,558 miles
- Test number
- 589552665517
- MajorEngine MIL inoperative or indicates a malfunction (8.2.2.2 (g))
- MajorOffside Rear Position lamp with a multiple light source more than 1/2 not functioning (4.2.1 (a) (ii))
Pass26,874 miles
- MOT expiry
- 3 Mar 2023
- Odometer
- 26,874 miles
- Test number
- 576963251204
No defects or advisories recorded.
Fail26,874 miles (+7,207)1 repaired
- MOT expiry
- No new certificate
- Odometer
- 26,874 miles
- Test number
- 879242203209
- Repaired at testEngine MIL inoperative or indicates a malfunction (8.2.2.2 (g))
Pass19,667 miles1 minor1 advisory
- MOT expiry
- 3 Mar 2022
- Odometer
- 19,667 miles
- Test number
- 915272718510
- MinorOffside Rear Position lamp with a multiple light source up to 1/2 not functioning (4.2.1 (a) (i))
- AdvisoryFront Tyre worn close to legal limit/worn on edge both sides worn slightly low (5.2.3 (e))
Fail19,666 miles (+8,272)1 major1 minor1 advisory
- MOT expiry
- No new certificate
- Odometer
- 19,666 miles
- Test number
- 682739358045
- MajorEngine MIL inoperative or indicates a malfunction (8.2.2.2 (g))
- MinorOffside Rear Position lamp with a multiple light source up to 1/2 not functioning (4.2.1 (a) (i))
- AdvisoryFront Tyre worn close to legal limit/worn on edge both sides worn slightly low (5.2.3 (e))
Pass11,394 miles (+5,278)
- MOT expiry
- 6 Sept 2020
- Odometer
- 11,394 miles
- Test number
- 843189018802
No defects or advisories recorded.
Pass6,116 miles1 advisory
- MOT expiry
- 6 Sept 2019
- Odometer
- 6,116 miles
- Test number
- 397094117735
- AdvisoryOffside Front tyre perished in tread.
Fail6,116 miles (-86)1 major1 advisory
- MOT expiry
- No new certificate
- Odometer
- 6,116 miles
- Test number
- 300531053529
- MajorSupplementary restraint system warning lamp indicates a fault (7.1.6 (a))
- AdvisoryOffside Front tyre perished in tread.
Pass6,202 miles1 advisory
- MOT expiry
- 23 Apr 2019
- Odometer
- 6,202 miles
- Test number
- 978684675910
- AdvisoryFront Vehicles internal headlight adjuster altered to recheck lights
Pass7,829 km1 advisory
- MOT expiry
- 2 Oct 2018
- Odometer
- 7,829 km
- Test number
- 820925634571
- AdvisoryNearside front tyre outer sidewall has deep cut no cords exposed
Questions about T21 OON
- Does T21 OON currently have a valid MOT?
- Yes. DVSA records show the MOT on T21 OON is valid until 14 Mar 2027.
- When is the MOT due on T21 OON?
- The MOT on T21 OON is valid until 14 Mar 2027. It can be tested up to a month (minus a day) before then and keep the same renewal date.
- What mileage has T21 OON done?
- T21 OON was recorded at 66,936 miles at its MOT on 11 Mar 2026, an average of 7,708 miles a year.
- Has T21 OON ever failed its MOT?
- Yes. T21 OON has failed 7 of its 17 MOT tests, most recently on 11 Mar 2026.
- Has the mileage on T21 OON ever gone down?
- Yes. The recorded mileage was lower than at the previous test once, first on 29 Aug 2018. This can be caused by a replacement instrument cluster, a recording error or odometer tampering.
- What did the latest MOT on T21 OON find?
- T21 OON passed its latest MOT on 11 Mar 2026 with 1 advisory: front brake disc worn, pitted or scored, but not seriously weakened both sides heavily worn.
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Contains DVSA MOT history data, public sector information licensed under the Open Government Licence v3.0. Driver Codes is not affiliated with DVSA or DVLA.