2003 Chevrolet Avalanche MOT Pass Rate
Pass rate for Avalanche models manufactured in 2003, based on 68 real MOT test results.
Data from official DVSA MOT testing records
2003 Chevrolet Avalanche MOT Analysis
The 2003 Chevrolet Avalanche has an MOT pass rate of 70.6% based on 68 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 94,941 miles on the odometer. With a 29.4% failure rate, the 2003 Avalanche is rated as "Very Good" for MOT reliability.
The leading cause of MOT failure for the 2003 Chevrolet Avalanche is Brakes, responsible for 23.5% of failures. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs range from £150–400. Suspension is the second most common issue at 11.8%.
Top failures specific to 2003 models only. The overall Avalanche page may show different rankings.
What Fails Most
What Fails on This Car?
Click a category to see specific failure items.
View as table
| Rank | Failure Category | Rate (%) | Count |
|---|---|---|---|
| 1 | Brakes | 23.5% | 16 |
| 2 | Suspension | 11.8% | 8 |
Failures per 10,000 Miles
avg. 94,941 miFor 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.
View as table
| Category | Rate / 10K mi | Raw % | Count |
|---|---|---|---|
| Brakes | 2.48 | 23.5% | 16 |
| Suspension | 1.24 | 11.8% | 8 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 2003 Chevrolet Avalanche has an MOT pass rate of 70.6% based on 68 tests — above the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 94,941 miles on the odometer. With a 29.4% failure rate, the 2003 Avalanche is rated as "Very Good" for MOT reliability.
If you own or are considering buying a 2003 Chevrolet Avalanche, you can expect reliable MOT performance overall. Before your MOT, pay particular attention to brakes: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm). With an average mileage of 94,941 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Brakes — 23.5% of failures
Brakes issues account for 23.5% of MOT failures on 2003 Chevrolet Avalanche models. Brake-related failures include worn brake pads, corroded brake discs, leaking brake lines, and faulty brake servos. These are safety-critical components — any brake deficiency will result in an MOT fail. Typical repair costs: £150–400. Pre-MOT check: Listen for squealing or grinding noises. Check brake pedal feel — if it feels spongy or goes to the floor, have the system inspected immediately. Look at brake pad thickness through the wheel spokes (minimum 3mm).
Suspension — 11.8% of failures
Suspension issues account for 11.8% of MOT failures on 2003 Chevrolet Avalanche 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.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.