2003 Mercedes-Benz S-Class 3.7L Petrol · KY03 KYX
2003 Mercedes-Benz S-Class (3.7L, petrol). First registered 28 Mar 2003. Recorded mileage 67,515 miles. MOT expired on 31 Aug 2026.
- Make & Model
- MERCEDES-BENZ S-Class
- Year / Origin
- 2003 · Northampton
- Safety Recall
- Unknown
- MOT Status
- Expired on 31 Aug 2026
- Road Tax
- —
- Recorded Mileage
- 67,515 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 3.7L
- 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.
KY03 KYX Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 27/08/2025
- 67,515 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.
KY03 KYX 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 2003 Mercedes-Benz S-Class (KY03 KYX) between December 2021 and August 2025.
The record contains 4 passes and 1 failure.
The most recent test on 27 August 2025 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
KY03 KYX Mileage History
- 01/09/202363,693 mi
- 24/08/202465,733 mi+2,040 mi
- 27/08/202567,515 mi+1,782 mi
Average of roughly 1,923 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 S-Class (W220)
Our database tracks 3 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.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
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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 2003 model year cars.
- Biodegradable wiring harness insulationSerious
Mercedes used a soy-based wiring insulation that degrades over time, exposing bare wires and causing short circuits, random warning lights and potential fire risk. Engine bay harnesses are worst affected.
- Airmatic suspension collapseSerious
The air springs and compressor degrade with age. Cars sag overnight, ride poorly and the compressor eventually burns out if leaks are ignored.
- SBC brake system failureSerious
The Sensotronic Brake Control unit can reach its cycle limit or fail, bringing brake warnings and a hard pedal. Replacement units are expensive and the system is complex.
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