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2004 Mercedes C230k Special Edition A MOT Pass Rate

Pass rate for C230k Special Edition A models manufactured in 2004, based on 32 real MOT test results.

53.1%
Pass Rate
46.9%
Fail Rate
32
Total Tests
71,926
Avg Mileage

Data from official DVSA MOT testing records

2004 Mercedes C230k Special Edition A MOT Analysis

The 2004 Mercedes C230k Special Edition A has an MOT pass rate of 53.1% based on 32 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 71,926 miles on the odometer. With a 46.9% failure rate, the 2004 C230k Special Edition A is rated as "Poor" for MOT reliability.

The leading cause of MOT failure for the 2004 Mercedes C230k Special Edition A is Tyres, responsible for 9.4% of failures. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs range from £50–200 per tyre. Seat Belts and Supplementary Restraint Systems is the second most common issue at 3.1%. Suspension follows at 3.1%.

⚠ Based on limited data (32 tests)

Top failures specific to 2004 models only. The overall C230k Special Edition A 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
1Tyres9.4%3
2Seat Belts And Supplementary Restraint Systems3.1%1
3Suspension3.1%1
4Brakes3.1%1
5Exhaust, Fuel And Emissions3.1%1

Failures per 10,000 Miles

avg. 71,926 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.

Tyres1.30% per 10K miSeat Belts0.43% per 10K miSuspension0.43% per 10K miBrakes0.43% per 10K miEmissions & Exhaust0.43% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Tyres1.309.4%3
Seat Belts0.433.1%1
Suspension0.433.1%1
Brakes0.433.1%1
Emissions & Exhaust0.433.1%1

Mileage Statistics

71,926
Mean
63,136
Median
42,764
25th Percentile
96,111
75th Percentile
6.52% failures per 10K miles

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

About This Data

The 2004 Mercedes C230k Special Edition A has an MOT pass rate of 53.1% based on 32 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 71,926 miles on the odometer. With a 46.9% failure rate, the 2004 C230k Special Edition A is rated as "Poor" for MOT reliability.

If you own or are considering buying a 2004 Mercedes C230k Special Edition A, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to tyres: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating. At 71,926 average miles, these vehicles are in the mid-range where component wear starts to become a factor.

Tyres — 9.4% of failures

Tyres issues account for 9.4% of MOT failures on 2004 Mercedes C230k Special Edition A models. Tyre failures include tread depth below the legal minimum of 1.6mm, cuts, bulges, exposed cords, and incorrect tyre pressure. Tyres are one of the most common and easiest-to-prevent MOT failures. Typical repair costs: £50–200 per tyre. Pre-MOT check: Check tread depth with a 20p coin — if the outer band is visible, the tyre is too worn. Look for bulges, cuts, or embedded objects. Ensure all tyres match the recommended size and load rating.

Seat Belts and Supplementary Restraint Systems — 3.1% of failures

Seat Belts and Supplementary Restraint Systems issues account for 3.1% of MOT failures on 2004 Mercedes C230k Special Edition A models. Seat belt failures include frayed or cut webbing, faulty retractors, buckles that don't latch properly, and missing or damaged anchorages. All fitted seat belts must be functional. Typical repair costs: £50–200 per belt. Pre-MOT check: Pull each seat belt fully out and check for fraying, cuts, or fading. Ensure each belt retracts smoothly and the buckle clicks securely. Check the pre-tensioner warning light on the dashboard.

Suspension — 3.1% of failures

Suspension issues account for 3.1% of MOT failures on 2004 Mercedes C230k Special Edition A 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.

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