2004 Mercedes-Benz SLK 2.3L Petrol · DE04 MXV
2004 Mercedes-Benz SLK (2.3L, petrol). First registered 31 Mar 2004. Recorded mileage 171,912 miles. MOT expired on 15 Feb 2025.
- Make & Model
- MERCEDES-BENZ SLK
- Year / Origin
- 2004 · Chester
- Safety Recall
- Unknown
- MOT Status
- Expired on 15 Feb 2025
- Road Tax
- —
- Recorded Mileage
- 171,912 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 2.3L
- Reliability Guide
- Common Faults
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DE04 MXV Key Findings
- 4 MOT tests recorded
- Latest MOT failed on 11/04/2025
- 171,912 miles recorded at latest MOT
- 1 historical MOT failure
Derived directly from the recorded DVSA and DVLA data shown on this page.
DE04 MXV MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
4 MOT tests are recorded for this 2004 Mercedes-Benz Slk (DE04 MXV) between February 2022 and April 2025.
The record contains 3 passes and 1 failure.
The most recent test on 11 April 2025 was a fail; the vehicle has not passed its last recorded MOT.
DE04 MXV Mileage History
- 16/02/2022165,692 mi
- 15/02/2023167,051 mi+1,359 mi
- 06/02/2024168,530 mi+1,479 mi
- 11/04/2025171,912 mi+3,382 mi
Average of roughly 1,976 miles per year across 4 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: 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 2004 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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