2010 Mercedes-Benz SLK 1.8L Petrol · TA55 DNA
2010 Mercedes-Benz SLK (1.8L, petrol). First registered 29 May 2010. Recorded mileage 122,979 miles. MOT valid until 09 Jun 2027.
- Make & Model
- MERCEDES-BENZ SLK
- Year / Origin
- 2010
- Safety Recall
- Unknown
- MOT Status
- Valid until 09 Jun 2027
- Road Tax
- —
- Recorded Mileage
- 122,979 mi
- ULEZ Compliance
- ULEZ Compliant (Euro 4+)
- Fuel & Engine
- Petrol · 1.8L
- 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.
TA55 DNA Key Findings
- 5 MOT tests recorded
- Latest MOT passed on 11/06/2026
- 122,979 miles recorded at latest MOT
- 2 historical MOT failures
- 3 defects noted at the latest MOT
- Recurring suspension items (6 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
TA55 DNA 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 2010 Mercedes-Benz Slk (TA55 DNA) between May 2024 and June 2026.
The record contains 3 passes and 2 failures.
The most recent test on 11 June 2026 was a pass, although the earlier record includes 2 failures that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Suspension (6 issues), Steering (4 issues), Tyres (3 issues), Brakes (2 issues), Windscreen (1 issue). Repeated mentions in one area can indicate an ongoing pattern worth checking in person.
In total 11 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: “Offside Front Suspension arm ball joint dust cover no longer prevents the ingress of dirt front arm (5.3.4 (b) (ii))”; “Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))”; “Nearside Front Lower Suspension arm ball joint excessively worn rear bush (5.3.4 (a) (i))”.
TA55 DNA Mileage History
- 30/05/2024109,246 mi
- 31/05/2025115,782 mi+6,536 mi
- 05/06/2025115,795 mi+13 mi
- 09/06/2026122,974 mi+7,179 mi
- 11/06/2026122,979 mi+5 mi
Average of roughly 6,759 miles per year across 5 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
Dimensions & Weights
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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 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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