2011 Mercedes-Benz SLK 1.8L Petrol · A110 RAT
2011 Mercedes-Benz SLK (1.8L, petrol). First registered 18 Nov 2011. Recorded mileage 41,665 miles. MOT valid until 10 Sept 2027.
- Make & Model
- MERCEDES-BENZ SLK
- Year / Origin
- 2011 · Peterborough
- Safety Recall
- Unknown
- MOT Status
- Valid until 10 Sept 2027
- Road Tax
- —
- Recorded Mileage
- 41,665 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.
A110 RAT Key Findings
- 17 MOT tests recorded
- Latest MOT passed on 07/09/2026
- 41,665 miles recorded at latest MOT
- 3 historical MOT failures
- 2 defects noted at the latest MOT
- Recurring tyres items (5 mentions)
Derived directly from the recorded DVSA and DVLA data shown on this page.
A110 RAT MOT History
Interpretation generated from the recorded test data above — not an official DVSA statement and not a substitute for an independent inspection.
17 MOT tests are recorded for this 2011 Mercedes-Benz Slk (A110 RAT) between November 2014 and September 2026.
The record contains 14 passes and 3 failures.
The most recent test on 07 September 2026 was a pass, although the earlier record includes 3 failures that buyers may want to investigate.
Across all tests, the most frequently flagged areas are: Tyres (5 issues), Lighting (4 issues), Suspension (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: “Offside Front Coil spring fractured or broken (5.3.1 (b) (i))”; “Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))”.
A110 RAT Mileage History
- 10/11/20146,412 mi
- 10/11/20146,412 mi
- 09/06/20157,446 mi+1,034 mi
- 02/11/20158,140 mi+694 mi
- 29/09/20169,291 mi+1,151 mi
- 04/09/201713,653 mi+4,362 mi
- 14/09/201819,145 mi+5,492 mi
- 13/09/201923,598 mi+4,453 mi
- 25/09/202026,312 mi+2,714 mi
- 15/09/202128,511 mi+2,199 mi
- 27/09/202231,066 mi+2,555 mi
- 09/08/202333,422 mi+2,356 mi
- 11/09/202436,163 mi+2,741 mi
- 12/09/202436,168 mi+5 mi
- 09/09/202538,691 mi+2,523 mi
- 09/09/202538,696 mi+5 mi
- 07/09/202641,665 mi+2,969 mi
Average of roughly 2,981 miles per year across 17 recorded odometer readings.
Technical Specifications
Core Specifications
Identification & Status
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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: 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.
Vehicle & Plate History
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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 2011 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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