Mercedes SLC (2019)
Estimated running costs and MOT pass rates from 1,972 MOT tests in 2024.
Annual Cost
£2,413
£201/month
MOT Pass Rate
94%
Excellent
Road Tax
£200
Standard rate/year
Est. Insurance
Grp 30-42
2996cc Petrol
Great Choice
94% pass rate, £2,413/year to run. 12 points above average.
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Annual Running Costs
~30 mpg
Standard rate (from April 2017)
Low estimate due to excellent reliability
Estimates based on 7,400 miles/year (UK average), petrol at 174.57p a litre (GOV.UK weekly average, week of 19 October 2026), GOV.UK road tax rates and repair likelihood from MOT data. Insurance not included. Cars registered from April 2017 pay the £200 standard rate, plus £440 a year for five years (from the second year) if they cost over £40,000 new (over £50,000 for electric cars).
Reliability Verdict
Excellent reliability. Very few MOT failures. That's 12 points above the average of 82% across all models in our data. It also outperforms the Mercedes brand average of 87%.
94% of MOT tests on Mercedes SLCs from 2019 ended in a pass in 2024, when they were about 5 years old. That's based on 1,972 tests across the UK, retests included. The average mileage recorded at those tests was 21,880 miles.
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How Does It Compare?
Mileage Analysis
21,880
Average miles
37,000
Expected for age
The average 2019 Mercedes SLC had 21,880 miles on the clock at its 2024 MOT, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
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Mercedes SLC by Year
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About the 2019 Mercedes SLC
The 2019 Mercedes SLC is a premium performance car. Our records list a 2996cc petrol engine, though engines vary between versions. 1,972 MOT tests were recorded on this model in 2024, making it a reasonably common sight on UK roads. It ranks in the top 20% of all 2019 models for MOT pass rate.
With an average of 21,880 miles recorded at its 2024 MOT tests, Mercedes SLC owners tend to use this car less than the typical driver.
2019 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 £1,958 per year with petrol at 174.57p per litre (GOV.UK weekly average, week of 19 October 2026; based on 7,400 miles per year).
What does it cost to own a 2019 Mercedes SLC?
Total estimated annual running cost is £2,413 (£201/month), broken down as £1,958 fuel, £200 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 94% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Mercedes SLC Reliability Trend
Newer Mercedes SLCs pass their MOT more often than older ones, by 4 percentage points on average, which is mostly down to age and wear.
Buying a Used 2019 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.
Common Issues to Watch For
These are typical issues for cars of this age, fuel type and engine size, not faults recorded on this model's MOT tests. Use them as a checklist when you view one.
Timing Chain / Belt
Watch outAt 7 years old, check whether the timing belt has been replaced (typically due every 5-7 years or 60,000-100,000 miles). A snapped belt can destroy the engine.
Oil Consumption
Medium riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
Suspension Wear
Medium riskShock absorbers, springs, and anti-roll bar links typically need attention around this age. Listen for clunks over bumps and check for uneven tyre wear.
Service History
Low riskAlways request a full service history. Regular servicing is the single best indicator of how well a car has been maintained, regardless of mileage.
Running Costs Compared
How the 2019 Mercedes SLC stacks up against similar cars for estimated annual running costs, insurance group, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Est. Ins. Group | Total/yr |
|---|---|---|---|---|---|
| Mercedes SLC(2019) | 94% | £1,958 | £200 | Grp 30-42 | £2,413 |
| BMW 5 Series(2018) | 91% | £1,958 | £200 | Grp 30-42 | £2,413same |
| Land Rover Range Rover Sport(2018) | 93% | £1,958 | £200 | Grp 30-42 | £2,413same |
| BMW X3(2019) | 92% | £1,958 | £200 | Grp 30-42 | £2,413same |
| Mercedes GLC(2019) | 93% | £1,958 | £200 | Grp 30-42 | £2,413same |
Estimates based on 7,400 miles/year, GOV.UK average pump prices for the week of 19 October 2026, GOV.UK road tax rates and MOT data. Insurance groups are our rough estimate from engine size, not official groups. Actual costs vary by driver, location, and usage.
Questions about the 2019 Mercedes SLC
Is the 2019 Mercedes SLC reliable?
Excellent reliability. Very few MOT failures. 94% of MOT tests on 2019 Mercedes SLCs ended in a pass, from 1,972 tests (DVSA MOT data for tests in 2024, retests included). That's 12 points above the average of 82% across all models in the same data.
How much does a 2019 Mercedes SLC cost to run?
Our estimate is £2,413 a year (£201 a month): £1,958 fuel, £200 road tax, £55 MOT and £200 predicted repairs, based on 7,400 miles a year. Insurance is not included.
What is the MOT pass rate for a 2019 Mercedes SLC?
94% of 1,972 MOT tests on the 2019 Mercedes SLC ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 276th of 1,380 models first registered in 2019 (top 20%).
Which year Mercedes SLC has the best MOT pass rate?
Of the years with at least 100 tests, the 2019 Mercedes SLC has the highest MOT pass rate at 94% and the 2016 the lowest at 89%. Newer cars usually pass more often simply because they are younger and have done fewer miles.
What is the average mileage for a 2019 Mercedes SLC?
The average mileage recorded at MOT tests on the 2019 Mercedes SLC is 21,880 miles, which is below the expected 37,000 miles for a 5-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Related Mercedes Models
Explore other Mercedes cars or similar models in the same category.
Mercedes A
2019 · 1461cc Diesel
Mercedes C
2017 · 1991cc Hybrid
Mercedes A-Class
2017 · 1461cc Diesel
BMW 5 Series
2018 · 2998cc Petrol
Land Rover Range Rover Sport
2018 · 2995cc Petrol
BMW X3
2019 · 2998cc Petrol
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