2018 Mercedes-Benz S-Class 2.9L Diesel · KF18 HZT
2018 Mercedes-Benz S-Class (2.9L, diesel). First registered 28 Jun 2018. Recorded mileage 75,383 miles. MOT expired on 28 Jun 2026. Taxed until 01 Dec 2026.
- Make & Model
- MERCEDES-BENZ S-Class
- Year / Origin
- 2018 · Borehamwood (Luton)
- Safety Recall
- Unknown
- MOT Status
- Expired on 28 Jun 2026
- Road Tax
- Taxed (01 Dec 2026)
- Recorded Mileage
- 75,383 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 6 Diesel)
- Fuel & Engine
- Diesel · 2.9L
- Reliability Guide
- Common Faults
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KF18 HZT Key Findings
- 4 MOT tests recorded
- Latest MOT passed on 30/06/2025
- 75,383 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.
KF18 HZT MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
4 MOT tests are recorded for this 2018 Mercedes-Benz S-Class (KF18 HZT) between June 2022 and June 2025.
The record contains 4 passes and 0 failures.
The record shows no MOT failures, although 2 advisory notices note items to monitor.
Across all tests, the most frequently flagged areas are: Brakes (2 issues), Windscreen (1 issue). 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.
KF18 HZT Mileage History
- 15/06/202258,038 mi
- 19/06/202366,375 mi+8,337 mi
- 12/06/202472,635 mi+6,260 mi
- 30/06/202575,383 mi+2,748 mi
Average of roughly 5,701 miles per year across 4 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 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: 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 2018 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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