CarCostCheck

MERCEDES G-CLASS (2014)

Running costs, common problems, and reliability data based on 362 real MOT tests in 2024.

Share:XFacebookWhatsApp

MOT Pass Rate

92%

Total Tests (2024)

362

Avg Mileage

54,969 mi

Est. Annual Cost

£1,750

Is the 2014 MERCEDES G-CLASS reliable?

Excellent reliability. Very few MOT failures. That's 10 points above the national average of 82%. It also outperforms the MERCEDES brand average of 87%.

At 10 years old, 92% of MERCEDES G-CLASSs from 2014 passed their MOT first time in 2024. That's based on 362 tests across the UK. The average mileage at this age is 54,969 miles.

How does the 2014 MERCEDES G-CLASS compare?

Rank among all 2014 cars108th out of 562(top 19%)
Rank among all MERCEDES models488th out of 1,408(top 35%)
vs national average+10% (82% avg)
vs 2014 cars average+11% (81% avg)
vs MERCEDES average+5% (87% avg)

Mileage Analysis

The average 2014 MERCEDES G-CLASS has 54,969 miles on the clock, which is below the expected 74,000 miles for a 10-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Best year to buy a MERCEDES G-CLASS?

The most reliable year is the 2020 model with a 98% MOT pass rate, while the 2021 model has the lowest at 78%. The 2014 sits between the two at 92%.

How much does a 2014 MERCEDES G-CLASS cost to run?

⛽Fuel (Diesel, 2987cc)
£1,245
🏛️Road Tax
£250
🔧MOT Test
£55
🛠️Predicted Repairs
£200
Total per year£1,750
Per month£146/mo

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

MERCEDES G-CLASS by Year

YearPass RateTestsAvg Mileage
202178%6530,190 mi
202098%6632,570 mi
201996%31941,698 mi
201894%80739,199 mi
201786%69143,730 mi
201694%60458,012 mi
201588%59148,991 mi
201492%36254,969 mi
201394%44969,675 mi
201290%22176,209 mi
201196%9270,666 mi
201073%3378,145 mi
2007100%35103,461 mi
200160%4293,234 mi
199982%44113,541 mi

Checking a specific MERCEDES G-CLASS?

Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.

GB

Free instant check using official DVSA and DVLA data

About the 2014 MERCEDES G-CLASS

The 2014 MERCEDES G-CLASS is a large car with a 2987cc diesel engine. 362 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It ranks in the top 19% of all 2014 cars for reliability.

With an average of 54,969 miles at 10 years old, MERCEDES G-CLASS owners tend to use this car less than the typical driver.

2014 MERCEDES G-CLASS Fuel Costs

The 2987cc diesel engine is on the larger side, so fuel won't be this car's strong point. 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 2014 MERCEDES G-CLASS?

Total estimated annual running cost is £1,750 (£146/month), broken down as £1245 fuel, £250 road tax, £55 MOT, and £200 predicted repairs. The low repair estimate reflects the excellent 92% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.

MERCEDES G-CLASS Reliability Trend

The MERCEDES G-CLASS has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.

Buying a Used 2014 MERCEDES G-CLASS

At 10 years old, the MERCEDES G-CLASS is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age. If you're flexible on year, the 2020 model has the highest pass rate at 98%.

Alternatives to the 2014 MERCEDES G-CLASS

The MERCEDES G-CLASS is actually the most reliable option among similar diesel large cars from this era. Here are comparable diesel cars with similar engines: