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2004 Mercedes C180k Special MOT Pass Rate

Pass rate for C180k Special models manufactured in 2004, based on 64 real MOT test results.

39.1%
Pass Rate
60.9%
Fail Rate
64
Total Tests
73,512
Avg Mileage

Data from official DVSA MOT testing records

2004 Mercedes C180k Special MOT Analysis

The 2004 Mercedes C180k Special has an MOT pass rate of 39.1% based on 64 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 73,512 miles on the odometer. With a 60.9% failure rate, the 2004 C180k Special is rated as "Very Poor" for MOT reliability.

The leading cause of MOT failure for the 2004 Mercedes C180k Special is Brakes, responsible for 10.9% 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 10.9%. Lamps, Reflectors and Electrical Equipment follows at 3.1%.

⚠ Based on limited data (64 tests)

Top failures specific to 2004 models only. The overall C180k Special 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
1Brakes10.9%7
2Suspension10.9%7
3Lamps, Reflectors And Electrical Equipment3.1%2
4Tyres3.1%2
5Steering1.6%1

Failures per 10,000 Miles

avg. 73,512 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.

Brakes1.49% per 10K miSuspension1.49% per 10K miLamps & Electrical0.43% per 10K miTyres0.43% per 10K miSteering0.21% per 10K mi
View as table
Mileage-normalised failure rates by category
CategoryRate / 10K miRaw %Count
Brakes1.4910.9%7
Suspension1.4910.9%7
Lamps & Electrical0.433.1%2
Tyres0.433.1%2
Steering0.211.6%1

Mileage Statistics

73,512
Mean
71,914
Median
58,734
25th Percentile
92,872
75th Percentile
8.28% failures per 10K miles

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

About This Data

The 2004 Mercedes C180k Special has an MOT pass rate of 39.1% based on 64 tests — significantly below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 73,512 miles on the odometer. With a 60.9% failure rate, the 2004 C180k Special is rated as "Very Poor" for MOT reliability.

If you own or are considering buying a 2004 Mercedes C180k Special, be prepared for above-average maintenance costs. 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). At 73,512 average miles, these vehicles are in the mid-range where component wear starts to become a factor.

Brakes — 10.9% of failures

Brakes issues account for 10.9% of MOT failures on 2004 Mercedes C180k Special 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 — 10.9% of failures

Suspension issues account for 10.9% of MOT failures on 2004 Mercedes C180k Special 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.

Lamps, Reflectors and Electrical Equipment — 3.1% of failures

Lamps, Reflectors and Electrical Equipment issues account for 3.1% of MOT failures on 2004 Mercedes C180k Special models. Lighting failures cover all external lights: headlights, tail lights, brake lights, indicators, fog lights, and reflectors. A single blown bulb will cause an MOT fail. This is one of the most preventable failure categories. Typical repair costs: £5–50. Pre-MOT check: Walk around the car and check every light — headlights (dipped and main beam), side lights, tail lights, brake lights, indicators, hazard lights, reverse light, rear fog light, and number plate lights. Replace any blown bulbs before the test.

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

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