2010 Mercedes-Benz SL 5.5L Petrol · A15 NAC
2010 Mercedes-Benz SL (5.5L, petrol). First registered 22 Mar 2010. Recorded mileage 13,939 miles. MOT valid until 27 Sept 2027. Taxed until 01 Oct 2026.
- Make & Model
- MERCEDES-BENZ SL
- Year / Origin
- 2010 · Peterborough
- Safety Recall
- Unknown
- MOT Status
- Valid until 27 Sept 2027
- Road Tax
- Taxed (01 Oct 2026)
- Recorded Mileage
- 13,939 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 4+)
- Fuel & Engine
- Petrol · 5.5L
- 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.
A15 NAC Key Findings
- 14 MOT tests recorded
- Latest MOT passed on 29/09/2026
- 13,939 miles recorded at latest MOT
- 1 historical MOT failure
- No defects recorded at the latest MOT
- Recurring tyres items (8 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
A15 NAC MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
14 MOT tests are recorded for this 2010 Mercedes-Benz Sl (A15 NAC) between March 2013 and September 2026.
The record contains 13 passes and 1 failure.
The most recent test on 29 September 2026 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: Tyres (8 issues), Lighting (2 issues). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 7 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.
Recorded failure items include: “Electronic stability control warning lamp indicates a fault (7.12 (e))”; “Offside Front Tyre has a tear, caused by separation or partial failure of its structure (5.2.3 (d) (ii))”; “Nearside Front Tyre has a tear, caused by separation or partial failure of its structure (5.2.3 (d) (ii))”.
A15 NAC Mileage History
- 21/03/20135,719 mi
- 26/03/20146,371 mi+652 mi
- 30/03/20156,904 mi+533 mi
- 16/03/20167,200 mi+296 mi
- 25/03/20178,145 mi+945 mi
- 16/03/20189,968 mi+1,823 mi
- 25/03/201910,716 mi+748 mi
- 02/06/202011,145 mi+429 mi
- 23/06/202011,150 mi+5 mi
- 22/06/202112,870 mi+1,720 mi
- 02/08/202313,088 mi+218 mi
- 12/08/202413,767 mi+679 mi
- 12/08/202513,854 mi+87 mi
- 29/09/202613,939 mi+85 mi
Average of roughly 608 miles per year across 14 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: 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.
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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 2010 model year cars.
- 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.
- 7G-Tronic Automatic Transmission Conductor Plate FailureModerate
The 722.9 7G-Tronic 7-speed automatic gearbox fitted to six-cylinder R171 SLKs features an electro-hydraulic conductor plate (VGS unit) submerged in hot automatic transmission fluid. Over time, thermal cycling and metallic sediment cause the integrated turbine and output speed sensors (Y3/8n1 and Y3/8n2) to fail, triggering diagnostic codes P0717, P0718, or P0705. When the signal drops, the transmission defaults into emergency limp-home mode, locking the gearbox into 2nd gear or reverse until restarted. Independent specialists can rebuild the plate, saving the cost of a brand new SCN-coded valve body.
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