2005 Mercedes-Benz SLK 3.5L Petrol · LT05 FLG
2005 Mercedes-Benz SLK (3.5L, petrol). First registered 05 Mar 2005. Recorded mileage 89,341 miles. MOT expired on 10 Jul 2025.
- Make & Model
- MERCEDES-BENZ SLK
- Year / Origin
- 2005 · Wimbledon (South London)
- Safety Recall
- Unknown
- MOT Status
- Expired on 10 Jul 2025
- Road Tax
- —
- Recorded Mileage
- 89,341 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 3.5L
- 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.
LT05 FLG Key Findings
- 5 MOT tests recorded
- Latest MOT failed on 25/07/2025
- 89,341 miles recorded at latest MOT
- 3 historical MOT failures
- 3 defects noted at the latest MOT
- Recurring tyres items (6 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
LT05 FLG 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 2005 Mercedes-Benz Slk (LT05 FLG) between May 2023 and July 2025.
The record contains 2 passes and 3 failures.
The most recent test on 25 July 2025 was a fail; the vehicle has not passed its last recorded MOT.
Across all tests, the most frequently flagged areas are: Tyres (6 issues), Lighting (4 issues), Brakes (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 7 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: “Registration plate lamp inoperative in the case of a single lamp or all lamps both (4.7.1 (b) (ii))”; “Offside Rear Direction indicator not working (4.4.1 (a) (ii))”; “Brake pipe leaking on a hydraulic braking system tail end of front to rear (1.1.11 (b) (ii))”.
LT05 FLG Mileage History
- 17/05/202388,886 mi
- 14/06/202388,931 mi+45 mi
- 11/07/202489,248 mi+317 mi
- 12/07/202489,248 mi
- 25/07/202589,341 mi+93 mi
Average of roughly 208 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 SLK (R171)
Our database tracks 6 specific mechanical faults and recurring failure patterns identified across UK MOT testing stations for this generation.
MOT Roadworthiness: Poor
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 SLK 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 2005 model year cars.
- M272 V6 Balance Shaft WearSerious
Early 3.0L and 3.5L V6 engines used soft metal gears on the balance shaft. The gears wear down, altering engine timing and requiring a massive engine-out repair.
- Vario-Roof Hydraulic LeaksModerate
The complex folding hardtop uses multiple hydraulic cylinders that can leak as the seals age.
- Rear Subframe Corrosion and PerforationSerious
The pressed-steel multi-link rear subframe on the R171 SLK is highly prone to severe internal corrosion, aggravated by decades of wet UK winter roads and road salt. Moisture and grime accumulate inside the hollow box sections, rusting the subframe from the inside out until structural perforation occurs around the suspension control arm mounting points. In severe cases, an arm mount shears off entirely, causing sudden dangerous rear-wheel steering and an immediate MOT failure. Mercedes-Benz UK has historically assessed replacements under goodwill on a case-by-case basis.
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