Jeep Wrangler Grizzly (2003)

Estimated running costs and MOT pass rates from 69 MOT tests in 2024.

Annual Cost

£3,303

£275/month

MOT Pass Rate

78%

Average

Road Tax

£790

Estimated/year

Est. Insurance

Grp 35-50

3960cc Petrol

Check Carefully

78% pass rate, £3,303/year to run. Close to the average across all models.

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Petrol3960cc23 years old69 tests74k miles avg

Annual Running Costs

Fuel (Petrol, 3960cc)

~30 mpg

£1,958

Road Tax

Estimated CO2 band

£790

MOT Test

£55

Predicted Repairs

£500

Total per year£3,303

Per month£275/mo

Per week£64/wk

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.

Reliability Verdict

78% MOT pass rate(Average)

0%All-model avg: 82%100%

Average reliability. Expect some repairs as it ages. That's close to the average of 82% across all models in our data.

78% of MOT tests on Jeep Wrangler Grizzlys from 2003 ended in a pass in 2024, when they were about 21 years old. That's based on 69 tests across the UK, retests included. The average mileage recorded at those tests was 74,406 miles.

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How Does It Compare?

Rank among 2003 models124th of 429(top half)

Rank among Jeep models152nd of 333(top half)

vs average of all models-4%(82% avg)

vs 2003 models average+6%(72% avg)

vs Jeep average+0%(78% avg)

Mileage Analysis

74,406

Average miles

155,400

Expected for age

The average 2003 Jeep Wrangler Grizzly had 74,406 miles on the clock at its 2024 MOT, which is significantly below the expected 155,400 miles for a 21-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.

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Jeep Wrangler Grizzly by Year

Year	Pass Rate	Tests	Avg Mileage
2003	78%	69	74,406 mi
2002	79%	43	68,789 mi

Similar Cars to Consider

Land Rover Range Rover Sport

2005 · 4394cc Petrol

£3,153/year

82%

+4%

Porsche 911

2005 · 3824cc Petrol

£3,003/year

90%

+12%

Land Rover Range Rover

2003 · 3950cc Petrol

£3,303/year

77%

-1%

Jaguar XJ

2004 · 3555cc Petrol

£3,303/year

78%

same

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About the 2003 Jeep Wrangler Grizzly

The 2003 Jeep Wrangler Grizzly is a large-engined car. Our records list a 3960cc petrol engine, though engines vary between versions. 69 MOT tests were recorded on this model in 2024, making it a rare model on UK roads. Among all models from 2003, the average MOT pass rate is 72%, and this model beats that benchmark.

With an average of 74,406 miles recorded at its 2024 MOT tests, Jeep Wrangler Grizzly 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.

2003 Jeep Wrangler Grizzly Fuel Costs

The 3960cc 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 2003 Jeep Wrangler Grizzly?

Total estimated annual running cost is £3,303 (£275/month), broken down as £1,958 fuel, £790 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.

Buying a Used 2003 Jeep Wrangler Grizzly

At 23 years old, the Jeep Wrangler Grizzly 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 69 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.

Timing Chain / Belt

Watch out

At 23 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 risk

Larger 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 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 2003 Jeep Wrangler Grizzly 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
Jeep Wrangler Grizzly(2003)	78%	£1,958	£790	Grp 35-50	£3,303
Land Rover Range Rover Sport(2005)	82%	£1,958	£790	Grp 35-50	£3,153-£150
Porsche 911(2005)	90%	£1,958	£790	Grp 35-50	£3,003-£300
Land Rover Range Rover(2003)	77%	£1,958	£790	Grp 35-50	£3,303same
Jaguar XJ(2004)	78%	£1,958	£790	Grp 35-50	£3,303same

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 2003 Jeep Wrangler Grizzly

Is the 2003 Jeep Wrangler Grizzly reliable?

Average reliability. Expect some repairs as it ages. 78% of MOT tests on 2003 Jeep Wrangler Grizzlys ended in a pass, from 69 tests (DVSA MOT data for tests in 2024, retests included). That's 4 points below the average of 82% across all models in the same data.

How much does a 2003 Jeep Wrangler Grizzly cost to run?

Our estimate is £3,303 a year (£275 a month): £1,958 fuel, £790 road tax, £55 MOT and £500 predicted repairs, based on 7,400 miles a year. Insurance is not included.

What is the MOT pass rate for a 2003 Jeep Wrangler Grizzly?

78% of 69 MOT tests on the 2003 Jeep Wrangler Grizzly ended in a pass (DVSA MOT data for tests in 2024, retests included). That ranks it 124th of 429 models first registered in 2003 (top half).

What is the average mileage for a 2003 Jeep Wrangler Grizzly?

The average mileage recorded at MOT tests on the 2003 Jeep Wrangler Grizzly is 74,406 miles, which is significantly below the expected 155,400 miles for a 21-year-old car. Low-mileage examples may have spent time sitting unused, so check for issues like corroded brakes or perished rubber seals.