1999 Mercedes 300 MOT Pass Rate
Pass rate for 300 models manufactured in 1999, based on 375 real MOT test results.
Data from official DVSA MOT testing records
This page shows all 300 cars tested in 1999. Want to see how cars built in 1999 hold up over time?
View 1999 Mercedes 300 vintage page → (41.9% current pass rate)1999 Mercedes 300 MOT Analysis
The 1999 Mercedes 300 has an MOT pass rate of 52.8% based on 375 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 137,141 miles on the odometer. With a 47.2% failure rate, the 1999 300 is rated as "Poor" for MOT reliability.
The leading cause of MOT failure for the 1999 Mercedes 300 is Visibility, responsible for 0.3% of failures. Visibility failures relate to the windscreen, wipers, washers, mirrors, and view-obstructing damage. Cracks in the windscreen swept area, ineffective wipers, or empty washer bottles are common causes. Typical repair costs range from £10–300.
Top failures specific to 1999 models only. The overall 300 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 | Visibility | 0.3% | 1 |
Failures per 10,000 Miles
avg. 137,141 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 |
|---|---|---|---|
| Visibility | 0.02 | 0.3% | 1 |
Mileage Statistics
Mileage-adjusted failure rate — accounts for how much this model year is typically driven.
About This Data
The 1999 Mercedes 300 has an MOT pass rate of 52.8% based on 375 tests — below the UK average for UK vehicles. Cars of this vintage present for MOT with an average of 137,141 miles on the odometer. With a 47.2% failure rate, the 1999 300 is rated as "Poor" for MOT reliability.
If you own or are considering buying a 1999 Mercedes 300, be prepared for above-average maintenance costs. Before your MOT, pay particular attention to visibility: Check the windscreen for chips and cracks — damage larger than 10mm in the driver's swept area or 40mm elsewhere will fail. Test washers and wipers. Ensure both door mirrors are intact and adjustable. With an average mileage of 137,141 miles, these vehicles are in the higher-mileage bracket where wear-related failures become more common.
Visibility — 0.3% of failures
Visibility issues account for 0.3% of MOT failures on 1999 Mercedes 300 models. Visibility failures relate to the windscreen, wipers, washers, mirrors, and view-obstructing damage. Cracks in the windscreen swept area, ineffective wipers, or empty washer bottles are common causes. Typical repair costs: £10–300. Pre-MOT check: Check the windscreen for chips and cracks — damage larger than 10mm in the driver's swept area or 40mm elsewhere will fail. Test washers and wipers. Ensure both door mirrors are intact and adjustable.
Based on DVSA anonymised MOT test data (2005–2024). Crown copyright, Open Government Licence v3.0.