2004 Mercedes-Benz SLK 3.2L Petrol · GT04 DFB
2004 Mercedes-Benz SLK (3.2L, petrol). First registered 01 Mar 2004. Recorded mileage 112,590 miles. MOT valid until 16 Mar 2027.
- Make & Model
- MERCEDES-BENZ SLK
- Year / Origin
- 2004 · Canterbury
- Safety Recall
- Unknown
- MOT Status
- Valid until 16 Mar 2027
- Road Tax
- —
- Recorded Mileage
- 112,590 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 3.2L
- 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.
GT04 DFB Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 17/03/2026
- 112,590 miles recorded at latest MOT
- 2 historical MOT failures
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
GT04 DFB 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 2004 Mercedes-Benz Slk (GT04 DFB) between January 2024 and March 2026.
The record contains 3 passes and 2 failures.
The most recent test on 17 March 2026 was a pass, although the earlier record includes 2 failures that buyers may want to investigate.
GT04 DFB Mileage History
- 23/01/2024106,531 mi
- 21/01/2025110,924 mi+4,393 mi
- 21/01/2025110,926 mi+2 mi
- 04/03/2026112,590 mi+1,664 mi
- 17/03/2026112,590 mi
Average of roughly 2,822 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: 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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