2004 Mercedes-Benz SL 3.7L Petrol · GU04 BGX
2004 Mercedes-Benz SL (3.7L, petrol). First registered 30 Mar 2004. Recorded mileage 102,550 miles. MOT expired on 10 May 2024.
- Make & Model
- MERCEDES-BENZ SL
- Year / Origin
- 2004 · Canterbury
- Safety Recall
- Unknown
- MOT Status
- Expired on 10 May 2024
- Road Tax
- —
- Recorded Mileage
- 102,550 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 3.7L
- 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.
GU04 BGX Key Findings
- 3 MOT tests recorded
- Latest MOT passed on 11/05/2023
- 102,550 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
Derived directly from the recorded DVSA and DVLA data shown on this page.
GU04 BGX MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
3 MOT tests are recorded for this 2004 Mercedes-Benz Sl (GU04 BGX) between March 2022 and May 2023.
The record contains 2 passes and 1 failure.
The most recent test on 11 May 2023 was a pass, although the earlier record includes 1 failure that buyers may want to investigate.
GU04 BGX Mileage History
- 03/03/2022101,714 mi
- 11/05/2023102,545 mi+831 mi
- 11/05/2023102,550 mi+5 mi
Average of roughly 704 miles per year across 3 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
Diagnostic & Valuation Intelligence
Estimate current market value
Generate an instant valuation benchmark based on live market listings, vehicle mileage, and recent dealer auction figures.
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.
Similar Vehicles
Similar Vehicles Checked Recently
Plate Neighbors
Batch Registration Neighbors (GU04 Series)
Vehicles registered in the same regional DVLA batch as GU04BGX.
NISSAN
NAVARA
CATERHAM
SEVEN (S3)
NISSAN
LEAF EVOLVE
ASTON MARTIN
V8 VANTAGE
KIA
SORENTO
MINI
MINI
LAND ROVER
DISCOVERY
VOLKSWAGEN
GOLF
TOYOTA
YARIS
MERCEDES-BENZ
SPRINTER
BMW
X3
VOLVO
XC90
MERCEDES-BENZ SL 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.
Regional DVLA Registration Directory
Vehicles and registration batches issued by regional DVLA offices across the UK.
Recently Checked UK Vehicles
Live vehicle history checks and MOT records recently queried by UK car buyers.