HUMMER H3 (2007)
Running costs, reliability data, and common problems from 58 real MOT tests.
Annual Cost
£2,907
£242/month
MOT Pass Rate
78%
Average
Road Tax
£760
Based on CC/year
Insurance
Grp 35-50
3653cc Petrol
Check Carefully
78% pass rate, £2907/year to run. Close to the national average.
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Annual Running Costs
~30 mpg
Based on 3653cc
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
Average reliability. Expect some repairs as it ages. That's close to the national average of 82%. It falls below the HUMMER brand average of 90%.
At 19 years old, 78% of HUMMER H3s from 2007 passed their MOT first time in 2026. That's based on 58 tests across the UK. The average mileage at this age is 91,124 miles.
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How Does It Compare?
Mileage Analysis
91,124
Average miles
140,600
Expected for age
The average 2007 HUMMER H3 has 91,124 miles on the clock, which is below the expected 140,600 miles for a 19-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 2008 model with a 94% MOT pass rate, while the 2007 model has the lowest at 78%. Consider a different year if reliability is a priority.
HUMMER H3 by Year
Similar Cars to Consider
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About the 2007 HUMMER H3
The 2007 HUMMER H3 is a performance with a 3653cc petrol engine. 58 of these vehicles were MOT tested in 2026, making it a rare model on UK roads. Among all cars from 2007, the average MOT pass rate is 73%, and this model beats that benchmark.
With an average of 91,124 miles at 19 years old, HUMMER H3 owners tend to use this car less than the typical driver.
2007 HUMMER H3 Fuel Costs
The 3653cc 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 £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 2007 HUMMER H3?
Total estimated annual running cost is £2,907 (£242/month), broken down as £1592 fuel, £760 road tax, £55 MOT, and £500 predicted repairs. Repair costs are moderate, reflecting the 78% pass rate. Keeping on top of servicing will help avoid surprises.
HUMMER H3 Reliability Trend
The HUMMER H3 has maintained consistent MOT pass rates across model years, varying by only 1 percentage points.
Buying a Used 2007 HUMMER H3
At 19 years old, the HUMMER H3 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. Note: with only 58 tests in our data, these figures should be treated as indicative rather than definitive.
Common Issues to Watch For
Based on the 2007 HUMMER H3's fuel type, age, and engine size, these are the most likely problem areas to check.
Timing Chain / Belt
Watch outAt 19 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.
Rust and Corrosion
Watch outAt 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 outRubber suspension bushes harden and crack with age, causing knocking noises and vague handling. A full refresh costs £300-£800 depending on the car.
Clutch Wear
Medium riskWith an average of 91k miles, clutch replacement may be due (typical lifespan 60,000-100,000 miles). Budget £400-£800 for a new clutch kit.
Brake Discs and Pads
Medium riskHigh-mileage cars often need brake disc replacement, not just pads. A full set of discs and pads costs £200-£500 per axle.
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 2007 HUMMER H3 stacks up against similar cars for annual running costs, insurance, and tax.
| Car | Pass Rate | Fuel/yr | Tax/yr | Insurance | Total/yr |
|---|---|---|---|---|---|
| HUMMER H3(2007) | 78% | £1592 | £760 | Grp 35-50 | £2907 |
| LAND ROVER FREELANDER(2007) | 75% | £1592 | £250 | Grp 35-50 | £2397-£510 |
| PORSCHE BOXSTER(2005) | 86% | £1592 | £250 | Grp 35-50 | £2247-£660 |
| MERCEDES CLC(2009) | 73% | £1592 | £250 | Grp 35-50 | £2397-£510 |
| PORSCHE 911(2006) | 90% | £1592 | £250 | Grp 35-50 | £2097-£810 |
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.
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