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

Estimated annual running cost is £1,895 (£158/month), including £1245 fuel, £395 road tax, £55 MOT, and £200 predicted repairs.

What is the MOT pass rate for a 2014 MERCEDES G-CLASS?

The 2014 MERCEDES G-CLASS has a 92% MOT pass rate based on 362 tests in 2026. This ranks 108 out of 562 cars from 2014.

Which year MERCEDES G-CLASS is most reliable?

The 2020 MERCEDES G-CLASS has the highest MOT pass rate at 98%. The least reliable year is 2021 at 78%.

MERCEDES G-CLASS (2014)

Q: Is the 2014 MERCEDES G-CLASS reliable?

Excellent reliability. Very few MOT failures. 92% of MERCEDES G-CLASSs from 2014 passed their MOT first time in 2026, based on 362 tests. That's 10 points above the national average of 82%.

Q: What is the average mileage for a 2014 MERCEDES G-CLASS?

The average mileage for a 2014 MERCEDES G-CLASS is 54,969 miles, which is below the expected 88,800 miles for a 12-year-old car. This suggests lighter use than average, which generally means less wear on major components.

Running costs, reliability data, and common problems from 362 real MOT tests.

Annual Cost

£1,895

£158/month

MOT Pass Rate

92%

Excellent

Road Tax

£395

Based on CC/year

Insurance

Grp 30-42

2987cc Diesel

Great Choice

92% pass rate, £1895/year to run. 10 points above average.

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Diesel2987cc12 years old362 tests55k miles avg

Annual Running Costs

Fuel (Diesel, 2987cc)

~40 mpg

£1,245

Road Tax

Based on 2987cc

£395

MOT Test

£55

Predicted Repairs

Low estimate due to excellent reliability

£200

Total per year£1,895

Per month£158/mo

Per week£36/wk

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

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Reliability Verdict

92% MOT pass rate(Excellent)

0%National avg: 82%100%

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 12 years old, 92% of MERCEDES G-CLASSs from 2014 passed their MOT first time in 2026. That's based on 362 tests across the UK. The average mileage at this age is 54,969 miles.

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How Does It Compare?

Rank among 2014 cars108th of 562(top 19%)

Rank among MERCEDES models488th 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

54,969

Average miles

88,800

Expected for age

The average 2014 MERCEDES G-CLASS has 54,969 miles on the clock, which is below the expected 88,800 miles for a 12-year-old car. This suggests lighter use than average, which generally means less wear on major components.

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Best Year to Buy?

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%.

MERCEDES G-CLASS by Year

Year	Pass Rate	Tests	Avg Mileage
2021	78%	65	30,190 mi
2020	98%	66	32,570 mi
2019	96%	319	41,698 mi
2018	94%	807	39,199 mi
2017	86%	691	43,730 mi
2016	94%	604	58,012 mi
2015	88%	591	48,991 mi
2014	92%	362	54,969 mi
2013	94%	449	69,675 mi
2012	90%	221	76,209 mi
2011	96%	92	70,666 mi
2010	73%	33	78,145 mi
2007	100%	35	103,461 mi
2001	60%	42	93,234 mi
1999	82%	44	113,541 mi

Similar Cars to Consider

LAND ROVER RANGE ROVER

2013 · 2926cc Diesel

£1,900/year

88%

-4%

JAGUAR XF

2014 · 2993cc Diesel

£1,900/year

84%

-8%

FORD RANGER

2016 · 3198cc Diesel

£1,900/year

84%

-8%

AUDI Q5

2016 · 2967cc Diesel

£1,750/year

90%

-2%

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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 2026, 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 12 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 £1,895 (£158/month), broken down as £1245 fuel, £395 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 12 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%.

Common Issues to Watch For

Based on the 2014 MERCEDES G-CLASS's fuel type, age, and engine size, these are the most likely problem areas to check.

DPF (Diesel Particulate Filter)

Watch out

Short journeys clog the DPF. Replacement costs £1,000-£2,500. Check the DPF warning light and ask about driving patterns.

Turbo Wear

Watch out

Diesel turbos work harder and wear faster. Listen for whining noises and check for oil leaks around the turbo housing.

EGR Valve

Watch out

Exhaust Gas Recirculation valves clog with carbon deposits, causing rough running and poor economy. Cleaning costs £150-£300, replacement £300-£600.

Dual Mass Flywheel

Watch out

Larger diesel engines put extra strain on the dual mass flywheel. Listen for rattling at idle. Replacement with clutch is £800-£1,500.

Rust and Corrosion

Watch out

At 10+ years, check wheel arches, sills, subframe, and brake lines for rust. Structural corrosion is an MOT failure. Prevention is far cheaper than repair.

Suspension Bushings

Watch out

Rubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.

Service History

Low risk

Always 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 2014 MERCEDES G-CLASS stacks up against similar cars for annual running costs, insurance, and tax.

Car	Pass Rate	Fuel/yr	Tax/yr	Insurance	Total/yr
MERCEDES G-CLASS(2014)	92%	£1245	£395	Grp 30-42	£1895
LAND ROVER RANGE ROVER(2013)	88%	£1245	£250	Grp 30-42	£1900+£5
JAGUAR XF(2014)	84%	£1245	£250	Grp 30-42	£1900+£5
FORD RANGER(2016)	84%	£1245	£250	Grp 35-50	£1900+£5
AUDI Q5(2016)	90%	£1245	£250	Grp 30-42	£1750-£145

Estimates based on 7,400 miles/year, current fuel prices, and MOT data. Insurance groups are indicative. Actual costs vary by driver, location, and usage.