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2004 Ford Mustang Gt MOT Pass Rate

Pass rate for Mustang Gt models manufactured in 2004, based on 153 real MOT test results.

82.4%
Pass Rate
17.6%
Fail Rate
153
Total Tests
46,321
Avg Mileage

Data from official DVSA MOT testing records

2004 Ford Mustang Gt MOT Analysis

The 2004 Ford Mustang Gt has an MOT pass rate of 82.4% based on 153 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 46,321 miles on the odometer. With a 17.6% failure rate, the 2004 Mustang Gt is rated as "Excellent" for MOT reliability.

The leading cause of MOT failure for the 2004 Ford Mustang Gt is Noise, emissions and leaks, responsible for 2.6% of failures. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs range from £100–1,000+. Suspension is the second most common issue at 1.3%. Steering follows at 0.7%.

Top failures specific to 2004 models only. The overall Mustang Gt page may show different rankings.

What Fails Most

What Fails on This Car?

Click a category to see specific failure items.

View as table
MOT failure categories ranked by failure rate
RankFailure CategoryRate (%)Count
1Noise, Emissions And Leaks2.6%4
2Suspension1.3%2
3Steering0.7%1
4Visibility0.7%1
5Body, Chassis, Structure0.7%1
6Brakes0.7%1
7Road Wheels0.7%1

Failures per 10,000 Miles

avg. 46,321 mi

For every 10,000 miles driven, this shows what percentage of MOT tests fail for each category. This accounts for how far cars are actually driven, not just raw pass/fail counts.

Noise, emissions and leaks0.56% per 10K miSuspension0.28% per 10K miSteering0.14% per 10K miVisibility0.14% per 10K miBody & Structure0.14% per 10K miBrakes0.14% per 10K miWheels0.14% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Noise, emissions and leaks0.562.6%4
Suspension0.281.3%2
Steering0.140.7%1
Visibility0.140.7%1
Body & Structure0.140.7%1
Brakes0.140.7%1
Wheels0.140.7%1

Mileage Statistics

46,321
Mean
42,376
Median
27,708
25th Percentile
63,447
75th Percentile
3.80% failures per 10K miles

Mileage-adjusted failure rate — accounts for how much this model year is typically driven.

About This Data

The 2004 Ford Mustang Gt has an MOT pass rate of 82.4% based on 153 tests — well above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 46,321 miles on the odometer. With a 17.6% failure rate, the 2004 Mustang Gt is rated as "Excellent" for MOT reliability.

If you own or are considering buying a 2004 Ford Mustang Gt, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to noise, emissions and leaks: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help. With relatively low average mileage of 46,321 miles, many of these vehicles are still in good mechanical condition.

Noise, emissions and leaks — 2.6% of failures

Noise, emissions and leaks issues account for 2.6% of MOT failures on 2004 Ford Mustang Gt models. Emissions failures occur when exhaust gases exceed legal limits for carbon monoxide (CO), hydrocarbons (HC), or particulate matter (diesel). Common causes include faulty oxygen sensors, clogged catalytic converters, or DPF issues on diesel vehicles. Typical repair costs: £100–1,000+. Pre-MOT check: If the engine management light is on, get it diagnosed before the MOT. For diesel cars, ensure the DPF has completed a regeneration cycle. Regular servicing and using premium fuel before the test can help.

Suspension — 1.3% of failures

Suspension issues account for 1.3% of MOT failures on 2004 Ford Mustang Gt models. Suspension failures typically involve worn bushes, leaking shock absorbers, broken coil springs, and damaged suspension arms. These affect ride quality, tyre wear, and road holding. Typical repair costs: £200–500. Pre-MOT check: Look for uneven tyre wear, listen for clunking over bumps, and check if the car pulls to one side. A bouncy ride suggests worn shock absorbers. Visually inspect coil springs for cracks.

Steering — 0.7% of failures

Steering issues account for 0.7% of MOT failures on 2004 Ford Mustang Gt models. Steering failures include excessive play in the steering wheel, leaking power steering fluid, worn track rod ends, and damaged steering rack. These affect vehicle control and are closely related to suspension wear. Typical repair costs: £150–600. Pre-MOT check: Check for excessive steering wheel play (more than a few inches of free movement). Listen for whining from the power steering pump. Look for fluid leaks under the car near the front wheels.

Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.

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