2018 Mercedes-Benz S-Class 2.9L Diesel · KA18 ALA
2018 Mercedes-Benz S-Class (2.9L, diesel). First registered 13 Sept 2018. Recorded mileage 99,852 miles. MOT valid until 12 Mar 2027. Taxed until 01 Mar 2027.
- Make & Model
- MERCEDES-BENZ S-Class
- Year / Origin
- 2018 · Borehamwood (Luton)
- Safety Recall
- Unknown
- MOT Status
- Valid until 12 Mar 2027
- Road Tax
- Taxed (01 Mar 2027)
- Recorded Mileage
- 99,852 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 6 Diesel)
- Fuel & Engine
- Diesel · 2.9L
- Reliability Guide
- Common Faults
AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.
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.
KA18 ALA Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 02/03/2026
- 99,852 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
- Recurring brakes items (10 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
KA18 ALA 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 2018 Mercedes-Benz S-Class (KA18 ALA) between November 2022 and March 2026.
The record contains 4 passes and 1 failure.
The most recent test on 02 March 2026 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Brakes (10 issues), Tyres (3 issues), Suspension (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 14 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.
Recorded failure items include: “Rear Brake pad(s) less than 1.5 mm thick both side (1.1.13 (a) (ii))”.
KA18 ALA Mileage History
- 07/11/202268,078 mi
- 13/03/202477,667 mi+9,589 mi
- 24/02/202584,515 mi+6,848 mi
- 24/02/202584,515 mi
- 02/03/202699,852 mi+15,337 mi
Average of roughly 9,582 miles per year across 5 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: Good
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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