Mercedes-benz 500 Reliability, MOT Pass Rate & Common Faults
Free Mercedes-benz 500 car check
Is the Mercedes-benz 500 reliable? We analysed 45,594 real MOT tests across 4,342 vehicles to find out.
Got a specific Mercedes-benz 500? Enter the reg for a free check:
The Mercedes-benz 500 is above average for reliability based on real UK MOT data. Common problems include brake pipe excessively corroded, tyre tread depth below requirements of 1.6mm and suspension component mounting prescribed area is excessively corroded. Here's everything you need to know before buying a used Mercedes-benz 500.
Mercedes-benz 500 Number Plates
Number plates registered to a Mercedes-benz 500. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Mercedes-benz 500 MOT Pass Rate by Year
How likely is a Mercedes-benz 500 to pass its MOT? Here's the pass rate for each registration year, newest first.
Mercedes-benz 500 Problems — What Goes Wrong?
The most common reasons a Mercedes-benz 500 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Mercedes-benz 500 Mileage — What's Normal?
How many miles does a typical Mercedes-benz 500 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Mercedes-benz 500 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Mercedes-benz 500 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2003 | 234 | 78.2% | 36,343 | 52,956 | 75,183 |
| 2002 | 145 | 82.8% | 34,870 | 55,809 | 76,035 |
| 2001 | 51 | 84.3% | 33,254 | 51,365 | 68,940 |
| 2000 | 166 | 77.7% | 64,520 | 85,350 | 123,361 |
| 1999 | 207 | 79.7% | 73,876 | 87,827 | 109,794 |
| 1998 | 216 | 70.4% | 81,406 | 91,405 | 120,715 |
| 1997 | 89 | 87.6% | 50,385 | 69,318 | 86,050 |
| 1996 | 70 | 85.7% | 35,972 | 71,408 | 94,813 |
| 1995 | 102 | 74.5% | 64,439 | 85,337 | 90,871 |
| 1994 | 312 | 77.9% | 66,602 | 87,941 | 130,824 |
| 1993 | 3,538 | 76.9% | 73,150 | 100,606 | 129,332 |
| 1992 | 4,746 | 78.1% | 70,067 | 101,964 | 135,809 |
| 1991 | 5,593 | 79.5% | 73,338 | 100,254 | 129,384 |
| 1990 | 5,359 | 78.2% | 74,295 | 104,272 | 134,300 |
| 1989 | 4,763 | 76.6% | 86,442 | 118,764 | 151,060 |
| 1988 | 4,014 | 76.7% | 82,062 | 113,067 | 147,492 |
| 1987 | 3,271 | 74.9% | 80,969 | 106,178 | 137,190 |
| 1986 | 2,908 | 73.7% | 79,423 | 107,346 | 133,576 |
| 1985 | 3,873 | 73.9% | 77,974 | 107,427 | 137,680 |
| 1984 | 1,840 | 74.9% | 74,878 | 102,299 | 130,989 |
How Long Does a Mercedes-benz 500 Last?
Based on 4,342 Mercedes-benz 500 vehicles on UK roads.
Mercedes-benz 500 Mileage Distribution
Total mileage recorded across all Mercedes-benz 500 MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Mercedes-benz 500
Based on MOT pass rates across all registration years with sufficient test data.
87.6% MOT pass rate from 89 tests
70.4% MOT pass rate from 216 tests
The best year to buy a used Mercedes-benz 500 is 1997, which has the highest MOT pass rate at 87.6% across 89 tests. The 1998 model year has the lowest pass rate at 70.4% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Mercedes-benz 500 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Mercedes-benz 500 THIS CAR | 76.5% | 45,594 | 103,853 mi | 45 yrs |
| Mercedes-benz C | 77.6% | 8,031,355 | 77,082 mi | 32 yrs |
| Mercedes-benz E | 79.4% | 4,722,746 | 83,960 mi | 33 yrs |
| Mercedes-benz A-class | 77.6% | 4,204,702 | 57,023 mi | 28 yrs |
| Mazda Eunos | 70.3% | 35,442 | 128,805 mi | 37 yrs |
Compared to the Mercedes-benz C (77.6% pass rate) and the Mercedes-benz E (79.4% pass rate), the Mercedes-benz 500 trails behind on MOT reliability.
Found a Mercedes-benz 500 you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Mercedes-benz 500Should you buy a used Mercedes-benz 500?
The Mercedes-benz 500 has an overall MOT pass rate of 76.5% across 45,594 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Mercedes-benz 500 are brake pipe excessively corroded (1,248 recorded failures), tyre tread depth below requirements of 1.6mm (1,110), and suspension component mounting prescribed area is excessively corroded (1,020). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
A typical Mercedes-benz 500 owner drives around 868 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
In terms of longevity, most Mercedes-benz 500 models stay on UK roads for around 45 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.