MERCEDES SLC (2017)
Running costs, common problems, and reliability data based on 7,762 real MOT tests in 2024.
MOT Pass Rate
90%
Total Tests (2024)
7,762
Avg Mileage
35,860 mi
Est. Annual Cost
£2,037
Is the 2017 MERCEDES SLC reliable?
Excellent reliability. Very few MOT failures. That's 8 points above the national average of 82%.
At 7 years old, 90% of MERCEDES SLCs from 2017 passed their MOT first time in 2024. That's based on 7,762 tests across the UK. The average mileage at this age is 35,860 miles.
How does the 2017 MERCEDES SLC compare?
Mileage Analysis
The average 2017 MERCEDES SLC has 35,860 miles on the clock, which is below the expected 51,800 miles for a 7-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a MERCEDES SLC?
The most reliable year is the 2021 model with a 98% MOT pass rate, while the 2016 model has the lowest at 89%. The 2017 sits between the two at 90%.
How much does a 2017 MERCEDES SLC cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
MERCEDES SLC by Year
Checking a specific MERCEDES SLC?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2017 MERCEDES SLC
The 2017 MERCEDES SLC is a large car with a 2996cc petrol engine. 7,762 of these vehicles were MOT tested in 2024, making it a reasonably common sight on UK roads. Among all cars from 2017, the average MOT pass rate is 87%, and this model beats that benchmark.
With an average of 35,860 miles at 7 years old, MERCEDES SLC owners tend to use this car less than the typical driver.
2017 MERCEDES SLC Fuel Costs
The 2996cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2017 MERCEDES SLC?
Total estimated annual running cost is £2,037 (£170/month), broken down as £1592 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 90% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
MERCEDES SLC Reliability Trend
Newer MERCEDES SLCs show better MOT pass rates than older ones, with an average improvement of 5 percentage points.
Buying a Used 2017 MERCEDES SLC
At 7 years old, this is a solid used buy if you find one with good service history. Depreciation has levelled off, so you won't lose much more value. Focus on condition over mileage. If you're flexible on year, the 2021 model has the highest pass rate at 98%. With 7,762 MOT tests in our data, there's strong statistical confidence in these figures.
Alternatives to the 2017 MERCEDES SLC
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- BMW 5 SERIES (2018) 91% pass rate (+1%) from 40,272 tests
- LAND ROVER RANGE ROVER SPORT (2018) 93% pass rate (+3%) from 34,257 tests
- BMW X3 (2019) 92% pass rate (+2%) from 32,937 tests
- MERCEDES GLC (2019) 93% pass rate (+3%) from 30,341 tests