2012 Mercedes-Benz E 2.1L Diesel · WJ12 AET
2012 Mercedes-Benz E (2.1L, diesel). First registered 01 Mar 2012. Recorded mileage 137,813 miles. MOT expired on 22 Dec 2024.
- Make & Model
- MERCEDES-BENZ E
- Year / Origin
- 2012 · Exeter
- Safety Recall
- Unknown
- MOT Status
- Expired on 22 Dec 2024
- Road Tax
- Untaxed (27 Feb 2024)
- Recorded Mileage
- 137,813 mi
- ULEZ Compliance
- Non-Compliant (Pre-Euro 6 Diesel)
- Fuel & Engine
- DIESEL · 2.1L
- 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.
WJ12 AET Key Findings
- 3 MOT tests recorded
- Latest MOT passed on 20/12/2023
- 137,813 miles recorded at latest MOT
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
WJ12 AET 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 2012 Mercedes-Benz E (WJ12 AET) between November 2021 and December 2023.
The record contains 3 passes and 0 failures.
No failures or advisories appear anywhere in the recorded tests, so the documented MOT record is relatively clean.
WJ12 AET Mileage History
- 10/11/2021117,301 mi
- 23/12/2022122,228 mi+4,927 mi
- 20/12/2023137,813 mi+15,585 mi
Average of roughly 9,728 miles per year across 3 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for Mercedes-Benz Mercedes-Benz E-Class (W212)
Our database tracks 4 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Average
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 is a reasonably safe buy for a 14-year-old diesel executive car, provided the price reflects the mileage. The MOT history shows only minor wear items and no failures, which is reassuring for a 2012 Mercedes-Benz E-Class.
Ask to see the full service history, as the MOT record alone does not confirm routine maintenance such as timing belt or oil changes on this 2,143cc diesel. Given the 2020 advisory for offside rear tyre wear and 2019 front brake pad wear, confirm these were addressed and budget for ongoing consumables. Negotiate on the basis of the 137,813 miles recorded in December 2023, which is high for the age, and compare against similar 2012 E-Class diesels in your area.
As a 2,143cc diesel Mercedes-Benz E-Class registered in 2012, expect moderate fuel economy typical of executive diesels, though no model aggregate figures are available here. Road tax for a diesel of this size and age will be in a higher band, and insurance group will reflect its prestige status. Estimated annual running costs including fuel, tax, insurance and maintenance are around £1,400-£1,800 given the mileage and age.
Check the offside rear tyre condition closely, as the 2020 MOT noted wear close to the legal limit on the edge, and verify it has since been replaced. Inspect the front brake pads and discs, since the 2019 test flagged pads wearing thin, and ensure no subsequent issues have arisen. As no aggregate model data is available, also have a independent mechanic review the 2143cc diesel engine for common age-related leaks or turbo condition before purchase.
WJ12AET is a silver 2012 Mercedes-Benz E-Class diesel with a 2,143cc engine, first registered in March 2012. The MOT history from 2019 to 2023 shows five consecutive passes with only minor advisories for tyre wear and brake pads. At 137,813 miles on the last test, it is a high-mileage example but has been maintained to a passable standard.
No aggregate MOT reliability data is available for the Mercedes-Benz E model in this dataset, so condition must be judged on this vehicle's own history.
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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MERCEDES-BENZ E Model Intelligence & Reliability
Verified MOT failure trends, buying advice, and technical directory specifications.
Owner-reported defects, recurring MOT failure points, and estimated repair costs.
Browse production generations, registration statistics, and trim variants.
Historical MOT pass rates and DVLA records for 2012 model year cars.
- OM651 Diesel Chain Tensioner Oil LeakModerate
The gasket on the timing chain tensioner is a frequent source of oil leaks. This can lead to decreased oil pressure for the tensioner, causing chain rattle.
- Rear Subframe CorrosionSerious
Like the W204, the rear subframe can corrode badly enough to fail an MOT and require full replacement.
- Airmatic Air Suspension LeaksSerious
Higher-spec cars with air suspension can sag or throw warnings once bags and compressors age.
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