2003 Mercedes SL 5.0L Petrol · L3 OKS
2003 Mercedes SL (5.0L, petrol). First registered 01/03/2003. Recorded mileage 77,134 miles. MOT valid until 06/10/2026. Taxed until 01/05/2027.
- Make & Model
- MERCEDES SL
- Year / Origin
- 2003 · Stanmore (Wimbledon)
- Safety Recall
- Unknown
- MOT Status
- Valid until 06/10/2026
- Road Tax
- Taxed (01/05/2027)
- Recorded Mileage
- 77,134 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- PETROL · 5.0L
- Reliability Guide
- Common Faults
- Fuel Type
- PETROL
- Year
- 2003
- Engine
- 4966cc
AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.
L3 OKS Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 02/10/2025
- 77,134 miles recorded at latest MOT
- 1 historical MOT failure
- 1 defect noted at the latest MOT
- Recurring tyres items (2 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
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.
Verify lender finance agreements, insurance write-offs, police stolen registers, and mileage rollback.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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L3 OKS Mileage History
- 04/05/202267,456 mi
- 05/09/202372,298 mi+4,842 mi
- 05/09/202372,298 mi
- 08/10/202475,288 mi+2,990 mi
- 02/10/202577,134 mi+1,846 mi
Average of roughly 2,834 miles per year across 5 recorded odometer readings.
L3 OKS 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 Sl (L3 OKS) between May 2022 and October 2025.
The record contains 4 passes and 1 failure.
The most recent test on 02 October 2025 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: Tyres (2 issues), Windscreen (1 issue), Lighting (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 3 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.
Buyer's Guide & Inspection Advisory
Expert automotive synthesis from historical MOT defect records and market benchmarks.
Our Verdict
Overall this 2003 Mercedes SL presents a
When viewing the car, ask for a full service history and confirm whether the front headlamp has been repaired since the 2023 failure. Verify that the tyre wear issues flagged in 2022 have been addressed – new tyres or a tyre rotation may be required. The oil leak noted in the 2025 MOT was described as not excessive, but a mechanic should check the source and any related seals.
Given the vehicle's age, inspect the soft‑top mechanism, suspension bushings, and any signs of rust, especially around the wheel arches where tyre wear was previously highlighted. A pre‑purchase inspection by a specialist familiar with Mercedes roadsters can uncover hidden wear that MOT records do not capture. Use any identified work as negotiation points to bring the price in line with the expected maintenance outlay.
The 5.0‑litre V8 petrol engine in the SL typically delivers around 15-18 mpg in mixed driving, so fuel costs will be a significant part of the running bill, especially if used regularly. Road tax for a 2003 SL in the UK falls into the higher bands (often £400‑£600 per year) due to its engine size and emissions.
Insurance for a classic Mercedes roadster is usually placed in a higher insurance group, potentially £800‑£1,200 annually depending on the driver’s profile. Routine maintenance on a V8 of this vintage can run £500‑£800 per year, covering oil changes, brake service, and occasional valve adjustments. Overall, an annual running cost estimate of £1,200‑£1,500 is realistic.
Focus first on the front lighting system – the 2023 MOT recorded a failed front headlamp on dipped beam, which should be verified as functional now. Check the condition of the headlamp lenses, bulbs, and wiring for corrosion or wear.
Inspect the rear tyres and wheel rims for any remaining wear close to the legal limit, as noted in the 2022 MOT. Uneven wear could indicate suspension issues that merit further investigation. Also, examine the engine bay for any oil seepage around the valve cover and oil pan, even though the 2025 MOT described the leak as not excessive.
Finally, review the condition of the windscreen washer system, since insufficient washer fluid was flagged in 2023. Ensure the pump, nozzles, and hoses are intact and that the washer fluid reservoir is not cracked, as a faulty system can affect visibility in adverse weather.
The black 2003 Mercedes SL has logged 77,134 miles, well below the average for a vehicle of its age, and has passed its most recent MOT in October 2025. Earlier MOTs show a single headlamp failure in 2023 and tyre wear warnings in 2022, alongside a non‑excessive oil leak noted in 2025. No model‑wide reliability data is available, so the car's condition must be judged on its own records. Buyers should weigh the low mileage against the age and the need for possible light maintenance.
No aggregate reliability data is available for the 2003 Mercedes SL, so assessments must rely on this vehicle's specific MOT record and any service documentation.
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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