Mercedes G (2022)
Estimated running costs and MOT pass rates from 44 MOT tests in 2024.
Annual Cost
£2,413
£201/month
MOT Pass Rate
100%
Excellent
Road Tax
£200
Standard rate/year
Est. Insurance
Grp 35-50
3982cc Petrol
Great Choice
100% pass rate, £2,413/year to run. 18 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 18 points above the average of 82% across all models in our data. It also outperforms the Mercedes brand average of 87%.
100% of MOT tests on Mercedes Gs from 2022 ended in a pass in 2024, when they were about 2 years old. That's based on 44 tests across the UK, retests included. The average mileage recorded at those tests was 19,247 miles.
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How Does It Compare?
Mileage Analysis
19,247
Average miles
14,800
Expected for age
The average 2022 Mercedes G had 19,247 miles on the clock at its 2024 MOT, which is above the expected 14,800 miles for a 2-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
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Best Year to Buy?
Of the years with at least 100 tests, the 2018 model has the highest MOT pass rate at 98%, while the 2019 model has the lowest at 93%. The 2022 scores 100%, but cars from 2022 weren't due their first routine MOT until 2025, so its figure isn't compared here. Newer cars usually pass more often simply because they are younger, so compare years of a similar age.
Mercedes G by Year
Similar Cars to Consider
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About the 2022 Mercedes G
The 2022 Mercedes G is a premium performance car. Our records list a 3982cc petrol engine, though engines vary between versions. 44 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. It ranks in the top 6% of all 2022 models for MOT pass rate.
With an average of 19,247 miles recorded at its 2024 MOT tests, Mercedes G owners cover more miles than the average driver.
2022 Mercedes G Fuel Costs
The 3982cc 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 2022 Mercedes G?
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 100% pass rate. These cars rarely fail their MOT, so unexpected bills are less likely.
Mercedes G Reliability Trend
The Mercedes G has maintained consistent MOT pass rates across model years, varying by only 1 percentage point.
Buying a Used 2022 Mercedes G
At 4 years old, the Mercedes G offers good value with plenty of life remaining. Most manufacturer warranties will have expired, so a pre-purchase inspection is worth the cost. If you're flexible on year, the 2018 model has the highest pass rate at 98%. Note: with only 44 tests in our data, these figures should be treated as indicative rather than definitive.
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.
Oil Consumption
Low riskLarger petrol engines can develop higher oil consumption as they age. Check the oil level and look for blue smoke from the exhaust.
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 2022 Mercedes G 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 G(2022) | 100% | £1,958 | £200 | Grp 35-50 | £2,413 |
| Mercedes C(2020) | 92% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Audi A6(2020) | 94% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Bentley Bentayga(2021) | 98% | £1,958 | £200 | Grp 35-50 | £2,413same |
| Porsche Cayman(2020) | 97% | £1,958 | £200 | Grp 35-50 | £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 2022 Mercedes G
Is the 2022 Mercedes G reliable?
Excellent reliability. Very few MOT failures. 100% of MOT tests on 2022 Mercedes Gs ended in a pass, from 44 tests (DVSA MOT data for tests in 2024, retests included). That's 18 points above the average of 82% across all models in the same data.
How much does a 2022 Mercedes G 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 2022 Mercedes G?
100% of 44 MOT tests on the 2022 Mercedes G ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 56th of 1,057 models first registered in 2022 (top 6%).
Which year Mercedes G has the best MOT pass rate?
Of the years with at least 100 tests, the 2018 Mercedes G has the highest MOT pass rate at 98% and the 2019 the lowest at 93%. Newer cars usually pass more often simply because they are younger and have done fewer miles.
What is the average mileage for a 2022 Mercedes G?
The average mileage recorded at MOT tests on the 2022 Mercedes G is 19,247 miles, which is above the expected 14,800 miles for a 2-year-old car. Higher-mileage cars often have more motorway miles, which is generally less harmful than stop-start urban driving.
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
Mercedes C
2020 · 3982cc Petrol
Audi A6
2020 · 3996cc Petrol
Bentley Bentayga
2021 · 3996cc Petrol
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