2005 Mercedes-Benz SLK 1.8L Petrol · KM55 AAN
2005 Mercedes-Benz SLK (1.8L, petrol). First registered 18 Nov 2005. Recorded mileage 78,569 miles. MOT expired on 15 Sept 2026. Taxed until 01 Aug 2027.
- Make & Model
- MERCEDES-BENZ SLK
- Year / Origin
- 2005 · Northampton
- Safety Recall
- Unknown
- MOT Status
- Expired on 15 Sept 2026
- Road Tax
- Taxed (01 Aug 2027)
- Recorded Mileage
- 78,569 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 1.8L
- 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.
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KM55 AAN Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 12/09/2025
- 78,569 miles recorded at latest MOT
- 2 historical MOT failures
- 5 defects noted at the latest MOT
- Recurring tyres items (7 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
KM55 AAN 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 (KM55 AAN) between August 2023 and September 2025.
The record contains 3 passes and 2 failures.
The most recent test on 12 September 2025 was a pass, although the earlier record includes 2 failures that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Tyres (7 issues), Lighting (4 issues), Brakes (2 issues), Steering (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 10 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: “Offside Rear Parking (secondary brake) on a single line braking system grabbing severely (1.3.1 (c))”; “Offside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))”; “Nearside Front Headlamp aim projected beam image is obviously incorrect (4.1.2 (c))”.
KM55 AAN Mileage History
- 24/08/202371,053 mi
- 15/08/202474,509 mi+3,456 mi
- 11/09/202474,519 mi+10 mi
- 17/09/202474,549 mi+30 mi
- 12/09/202578,569 mi+4,020 mi
Average of roughly 3,660 miles per year across 5 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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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: 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 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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