VAUXHALL MONARO (2004)
Running costs, common problems, and reliability data based on 201 real MOT tests in 2024.
MOT Pass Rate
82%
Total Tests (2024)
201
Avg Mileage
88,110 mi
Est. Annual Cost
£2,247
Is the 2004 VAUXHALL MONARO reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 20 years old, 82% of VAUXHALL MONAROs from 2004 passed their MOT first time in 2024. That's based on 201 tests across the UK. The average mileage at this age is 88,110 miles.
How does the 2004 VAUXHALL MONARO compare?
Mileage Analysis
The average 2004 VAUXHALL MONARO has 88,110 miles on the clock, which is below the expected 148,000 miles for a 20-year-old car. This suggests lighter use than average, which generally means less wear on major components.
Best year to buy a VAUXHALL MONARO?
The most reliable year is the 2006 model with a 92% MOT pass rate, while the 2004 model has the lowest at 82%. Consider a different year if reliability is a priority.
How much does a 2004 VAUXHALL MONARO cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
VAUXHALL MONARO by Year
Checking a specific VAUXHALL MONARO?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 2004 VAUXHALL MONARO
The 2004 VAUXHALL MONARO is a performance with a 5667cc petrol engine. 201 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. It ranks in the top 20% of all 2004 cars for reliability.
With an average of 88,110 miles at 20 years old, VAUXHALL MONARO owners tend to use this car less than the typical driver.
2004 VAUXHALL MONARO Fuel Costs
The 5667cc 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 2004 VAUXHALL MONARO?
Total estimated annual running cost is £2,247 (£187/month), broken down as £1592 fuel, £250 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 82% pass rate. Keeping on top of servicing will help avoid surprises.
VAUXHALL MONARO Reliability Trend
Newer VAUXHALL MONAROs show better MOT pass rates than older ones, with an average improvement of 5 percentage points.
Buying a Used 2004 VAUXHALL MONARO
At 20 years old, the VAUXHALL MONARO 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.
Alternatives to the 2004 VAUXHALL MONARO
If reliability is your priority, there are 4 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- MERCEDES SL (2004) 88% pass rate (+6%) from 4,036 tests
- BENTLEY CONTINENTAL (2006) 92% pass rate (+10%) from 3,180 tests
- ASTON MARTIN DB9 (2005) 93% pass rate (+11%) from 2,229 tests
- ASTON MARTIN DB7 (2002) 92% pass rate (+10%) from 468 tests