2017 Mercedes-Benz S-Class 3.0L Diesel · KF66 HNN
2017 Mercedes-Benz S-Class (3.0L, diesel). First registered 27 Feb 2017. Recorded mileage 149,422 miles. MOT expired on 11 May 2026.
- Make & Model
- MERCEDES-BENZ S-Class
- Year / Origin
- 2017 · Borehamwood (Luton)
- Safety Recall
- Unknown
- MOT Status
- Expired on 11 May 2026
- Road Tax
- —
- Recorded Mileage
- 149,422 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 6 Diesel)
- Fuel & Engine
- Diesel · 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.
KF66 HNN Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 08/05/2025
- 149,422 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
KF66 HNN 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 2017 Mercedes-Benz S-Class (KF66 HNN) between May 2022 and May 2025.
The record contains 4 passes and 1 failure.
The most recent test on 08 May 2025 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
KF66 HNN Mileage History
- 10/05/2022133,354 mi
- 12/05/2022133,358 mi+4 mi
- 04/05/2023139,195 mi+5,837 mi
- 02/05/2024140,910 mi+1,715 mi
- 08/05/2025149,422 mi+8,512 mi
Average of roughly 5,365 miles per year across 5 recorded odometer readings.
Technical Specifications
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Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
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Known faults for Mercedes-Benz Mercedes-Benz S-Class (W222)
Our database tracks 6 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Below 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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MERCEDES-BENZ S-Class 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 2017 model year cars.
- Airmatic Suspension FailureSerious
The AIRMATIC semi-active air suspension system features rubber air spring bellows that perish and leak over time, valve blocks that seize, and an electric air compressor that burns out from running continuously to compensate for pressure loss. Replacing struts and compressors carries substantial parts costs.
- NOX Sensor FailureModerate
Diesel variants (OM642 3.0-litre V6 in S 350 d and OM656 2.9-litre straight-six in facelift models) suffer widespread failure of the upstream and downstream nitrogen oxide (NOx) exhaust sensors. Moisture ingress and thermal shock damage internal sensor ceramics, causing engine warnings and non-start countdowns.
- Front Suspension Ball Joint and Control Arm WearModerate
Weighing over two tonnes, the W222 exerts tremendous load on its complex multi-link front suspension. Lower control arm compliance bushes, track control ball joints, and anti-roll bar drop links wear rapidly on UK roads, resulting in knocking over speed bumps and MOT failure.
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