2004 Mercedes SLK 3.5L Petrol · DP04 AAA
2004 Mercedes SLK (3.5L, petrol). First registered 01/07/2004. Recorded mileage 78,516 miles. MOT status: Expired. Taxed until 01/02/2027.
- Make & Model
- MERCEDES SLK
- Year / Origin
- 2004 · Shrewsbury
- MOT Status
- Valid until 09/08/2026
- Road Tax
- Taxed (01/02/2027)
- Recorded Mileage
- 78,516 mi
- ULEZ Compliance
- Non-Compliant (Pre-Euro 4 Petrol)
- Fuel & Engine
- PETROL · 3.5L
- Reliability Guide
- Common Faults
- Fuel Type
- PETROL
- Year
- 2004
- Engine
- 3498cc
AI-generated interpretation of this vehicle’s MOT record — not an official statement and not a substitute for an independent inspection.
DP04 AAA Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 04/08/2025
- 78,516 miles recorded at latest MOT
- 1 historical MOT failure
- 3 defects noted at the latest MOT
- Recurring brakes items (6 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
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.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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DP04 AAA Mileage History
- 25/07/202269,620 mi
- 10/08/202373,310 mi+3,690 mi
- 05/08/202475,301 mi+1,991 mi
- 04/08/202578,516 mi+3,215 mi
- 04/08/202578,516 mi
Average of roughly 2,938 miles per year across 5 recorded odometer readings.
DP04 AAA 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 Slk (DP04 AAA) between July 2022 and August 2025.
The record contains 4 passes and 1 failure.
The most recent test on 04 August 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: Brakes (6 issues), Lighting (2 issues), Suspension (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 8 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.
Buyer's Guide & Inspection Advisory
Expert automotive synthesis from historical MOT defect records and market benchmarks.
Our Verdict
Approach with caution and budget for immediate front-end repairs before purchase. The 2004 black Mercedes SLK (DP04AAA) passed its most recent MOT but required a prior failure the same day for defective headlamp lenses and worn brake discs.
Before buying DP04AAA, confirm the headlamp lenses were replaced rather than taped or temporarily fixed, as both front units were 'seriously defective' on the 2025-08-04 failure. Negotiate at least £300-£500 off the asking price to cover two new headlamp lenses, front brake discs and possible bottom arm ball joint work, since the 2025 pass still lists worn discs and slight suspension play as advisories. Check for a full service history with stamped intervals, as no model aggregate reliability data is available and a 3.5-litre V6 from 2004 needs evidence of regular maintenance.
The 3,498cc petrol engine in this SLK will return modest fuel economy, likely under 30 mpg in mixed use, and falls into a higher VED band for pre-2017 cars based on CO2 rather than a flat rate. Insurance group for a 2004 SLK 350 is typically mid-to-high, and parts such as brake discs and headlamps are more expensive than mainstream hatchbacks. Estimated annual running cost including fuel, tax, insurance and routine maintenance is around £1,400-£1,800 given the engine size and age.
Inspect both front headlamp lenses closely for clarity and correct beam pattern, as the 2025-08-04 MOT failed on 'seriously defective' near and offside lenses before a same-day pass. Check the front brake discs for pitting or scoring as noted on the 2025 pass advisories and the 2022 corroded front brake pipes which were covered in grease rather than replaced. Examine the nearside front bottom arm ball joint for play, listed as a slight advisory on the latest test, and verify the black paintwork for rust around the front arches given the brake pipe corrosion history.
This July 2004 registered 3.5-litre petrol Mercedes SLK shows 78,516 miles on its 2025 MOT, which is modest for a 22-year-old convertible. The MOT history is mostly clean with passes in 2022, 2023 and 2024, though 2022 noted corroded front brake pipes and the 2025 test recorded a failure followed by a pass on the same date. The repeated front brake disc wear and suspension play advisories suggest the front axle is the main area needing attention.
No aggregate MOT reliability data is available for the Mercedes SLK, so condition must be judged solely on this vehicle's individual history.
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
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