CarCostCheck

MERCEDES AUTO-SLEEPERS (2018)

Running costs, common problems, and reliability data based on 110 real MOT tests in 2024.

MOT Pass Rate

99%

Total Tests (2024)

110

Avg Mileage

8,768 mi

Est. Annual Cost

£1,690

Is the 2018 MERCEDES AUTO-SLEEPERS reliable?

Excellent reliability. Very few MOT failures. That's 17 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.

At 6 years old, 99% of MERCEDES AUTO-SLEEPERSs from 2018 passed their MOT first time in 2024. That's based on 110 tests across the UK. The average mileage at this age is 8,768 miles.

How does the 2018 MERCEDES AUTO-SLEEPERS compare?

Rank among all 2018 cars32th out of 649(top 5%)
Rank among all MERCEDES models60th out of 1,408(top 4%)
vs national average+17% (82% avg)
vs 2018 cars average+10% (89% avg)
vs MERCEDES average+12% (87% avg)

Mileage Analysis

The average 2018 MERCEDES AUTO-SLEEPERS has 8,768 miles on the clock, which is significantly below the expected 44,400 miles for a 6-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

How much does a 2018 MERCEDES AUTO-SLEEPERS cost to run?

Fuel (Diesel, 2143cc)
£1,245
🏛️Road Tax
£190
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,690
Per month£141/mo

Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.

MERCEDES AUTO-SLEEPERS by Year

YearPass RateTestsAvg Mileage
202189%368,241 mi
201899%1108,768 mi
2017100%4014,245 mi

Checking a specific MERCEDES AUTO-SLEEPERS?

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About the 2018 MERCEDES AUTO-SLEEPERS

The 2018 MERCEDES AUTO-SLEEPERS is a family car with a 2143cc diesel engine. 110 of these vehicles were MOT tested in 2024, making it a rare model on UK roads. It ranks in the top 5% of all 2018 cars for reliability.

With an average of 8,768 miles at 6 years old, MERCEDES AUTO-SLEEPERS owners tend to use this car less than the typical driver. Very low mileage could mean the car has been garaged or used only for short trips, which can cause its own issues like battery drain and moisture buildup.

2018 MERCEDES AUTO-SLEEPERS Fuel Costs

The 2143cc diesel engine offers a reasonable balance between performance and economy. Expect around 40 mpg in mixed driving, which works out to roughly £1,245 per year at current diesel prices of 148p per litre (based on 7,400 miles per year). Diesel cars of this age should have their DPF (diesel particulate filter) checked, as replacements can be costly.

What does it cost to own a 2018 MERCEDES AUTO-SLEEPERS?

Total estimated annual running cost is £1,690 141/month), broken down as £1245 fuel, £190 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 99% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

Buying a Used 2018 MERCEDES AUTO-SLEEPERS

At 6 years old, the MERCEDES AUTO-SLEEPERS offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost.

Alternatives to the 2018 MERCEDES AUTO-SLEEPERS

The MERCEDES AUTO-SLEEPERS is actually the most reliable option among similar diesel family cars from this era. Here are comparable diesel cars with similar engines: