2004 Mercedes-Benz SL 5.4L Petrol · 100 C
2004 Mercedes-Benz SL (5.4L, petrol). First registered 03 Mar 2004. Recorded mileage 29,246 miles. MOT valid until 15 Feb 2027. Taxed until 01 Mar 2027.
- Make & Model
- MERCEDES-BENZ SL
- Year / Origin
- 2004
- Safety Recall
- Unknown
- MOT Status
- Valid until 15 Feb 2027
- Road Tax
- Taxed (01 Mar 2027)
- Recorded Mileage
- 29,246 mi
- ULEZ Compliance
- Check Required (Pre-Euro 4 Petrol)
- Fuel & Engine
- Petrol · 5.4L
- 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.
100 C Key Findings
- 20 MOT tests recorded
- Latest MOT passed on 29/01/2026
- 29,246 miles recorded at latest MOT
- No defects recorded at the latest MOT
- Recurring tyres items (7 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
100 C MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
20 MOT tests are recorded for this 2004 Mercedes-Benz Sl (100 C) between February 2007 and January 2026.
The record contains 20 passes and 0 failures.
The record shows no MOT failures, although 6 advisory notices note items to monitor.
Across all tests, the most frequently flagged areas are: Tyres (7 issues), Brakes (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 6 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.
100 C Mileage History
- 21/02/200710,080 mi
- 22/02/200813,244 mi+3,164 mi
- 25/02/200914,787 mi+1,543 mi
- 04/02/201016,653 mi+1,866 mi
- 11/02/201118,163 mi+1,510 mi
- 29/02/201219,697 mi+1,534 mi
- 20/02/201321,162 mi+1,465 mi
- 10/02/201422,598 mi+1,436 mi
- 05/03/201524,038 mi+1,440 mi
- 19/02/201625,066 mi+1,028 mi
- 07/02/201726,359 mi+1,293 mi
- 12/02/201827,204 mi+845 mi
- 04/02/201927,650 mi+446 mi
- 14/02/202028,100 mi+450 mi
- 16/02/202128,239 mi+139 mi
- 15/02/202228,509 mi+270 mi
- 06/02/202328,773 mi+264 mi
- 25/01/202428,913 mi+140 mi
- 14/02/202529,068 mi+155 mi
- 29/01/202629,246 mi+178 mi
Average of roughly 1,012 miles per year across 20 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: Excellent
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 (100 Series)
Vehicles registered in the same regional DVLA batch as 100C.
MERCEDES-BENZ
ML
MERCEDES-BENZ
GLC
LEXUS
GS
LAND ROVER
RANGE ROVER VELAR A-BIO MHEV A
LAND ROVER
RANGE ROVER EVOQUE
PORSCHE
911
AUDI
A4
HYUNDAI
I10
MERCEDES-BENZ
GT
BENTLEY
CONTINENTAL GT
ROLLS ROYCE
SILVER SPIRIT
LAND ROVER
DISCOVERY SPORT
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.