Official DVLA Record
MOT Valid
Road Tax Paid

2003 Mercedes SL 5.0L Petrol · L3 OKS

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
MOT Status
Valid
Valid until 06/10/2026
Tax Status
Taxed
Tax due 01/05/2027
Fuel Type
PETROL
Year
2003
Engine
4966cc
Mechanical Assessment

AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.

A recurring pattern of minor component failures and emerging fluid leaks characterizes the recent mechanical history of this vehicle, with the most recent test on 02 October 2025 resulting in a pass despite an advisory for a front oil leak. While the vehicle successfully navigated the 2024 and 2023 inspections without defects, the presence of the oil leak advisory suggests the onset of component degradation that was not present in the previous two years. This shift from a clean record to a flagged leak indicates a transition from a period of stable compliance to one where fluid containment issues are becoming a factor in the vehicle's roadworthiness profile. The recorded mileage of 77,134 miles against a 23-year age profile represents an unusually low annual average of approximately 3,354 miles. This low-intensity usage pattern often implies the vehicle has spent significant periods stationary or has been used only for short-distance trips, which can impact the mechanical state of rubber seals, gaskets, and various fluid-carrying components. While lower mileage generally suggests less cumulative wear on the drivetrain and suspension, it can also mean that seals have had less opportunity to remain lubricated and supple, potentially contributing to the oil leak noted in the latest inspection. Prospective buyers should focus their physical inspection on the engine bay and undercarriage to address the front oil leak identified in the October 2025 advisory. During a test drive, it is essential to monitor for any scent of burning oil, which could indicate fluid contacting hot exhaust components, or any changes in engine performance. Given the 2022 advisory regarding rear tyre wear on the edges, the steering and suspension geometry should be scrutinised. Listen for any irregular knocks or clunks when traversing uneven surfaces and check for any pulling to one side during straight-line driving, as these symptoms could indicate worn suspension bushes or alignment issues that may have contributed to previous tyre wear. Further attention should be paid to the electrical and fluid delivery systems following the 2023 failure involving the dipped beam headlamp and the windscreen washer system. While these were rectified for the subsequent passes, a thorough check of all exterior lighting and the functionality of the washer jets is necessary to ensure no intermittent electrical faults or blockages persist. The transition from the clean 2024 record to the 2025 oil leak advisory necessitates a close look at the condition of various gaskets and seals to determine if the leak is a minor seepage or a more significant issue requiring immediate intervention.

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.

Updating live data
MOT Roadworthiness Analysis
85
/ 100 · Good
DVSA Test Records Evaluated

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.

✓ Valid MOT
✓ Taxed
✓ Good MOT pass rate (80%)
! Older vehicle
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Full History Report

Official provenance and safety check for L3OKS

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Write-off
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Salvage
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Imported
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Exported
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Scrapped
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Destruction
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L3 OKS Mileage History

  1. 04/05/202267,456 mi
  2. 05/09/202372,298 mi+4,842 mi
  3. 05/09/202372,298 mi
  4. 08/10/202475,288 mi+2,990 mi
  5. 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

Vehicle record last updated: 7 Sept 2026, 13:29
MOT Analysis

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.

PASS
FAIL
ADVISORY

Buyer's Guide & Inspection Advisory

Expert automotive synthesis from historical MOT defect records and market benchmarks.

Buying Score
70/100
Risk Level
Low
Low
Est. Annual Cost
£1,200-£1,500
Mileage
The recorded mileage is below average fo...

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