MERCEDES 300 (1990)
Running costs, common problems, and reliability data based on 947 real MOT tests in 2024.
MOT Pass Rate
84%
Total Tests (2024)
947
Avg Mileage
126,597 mi
Est. Annual Cost
£2,247
Is the 1990 MERCEDES 300 reliable?
Good reliability. Occasional issues but generally solid. That's close to the national average of 82%.
At 34 years old, 84% of MERCEDES 300s from 1990 passed their MOT first time in 2024. That's based on 947 tests across the UK. The average mileage at this age is 126,597 miles.
How does the 1990 MERCEDES 300 compare?
Mileage Analysis
The average 1990 MERCEDES 300 has 126,597 miles on the clock, which is below the expected 251,600 miles for a 34-year-old car. This suggests lighter use than average, which generally means less wear on major components.
How much does a 1990 MERCEDES 300 cost to run?
Based on 7,400 miles/year (UK average), current fuel prices, and repair likelihood from MOT pass rate data. Insurance not included.
MERCEDES 300 by Year
Checking a specific MERCEDES 300?
Enter the reg plate to see its individual MOT history, mileage verification, and predicted costs.
About the 1990 MERCEDES 300
The 1990 MERCEDES 300 is a large car with a 2968cc petrol engine. 947 of these vehicles were MOT tested in 2024, making it a less common model in the UK market. Among all cars from 1990, the average MOT pass rate is 79%, and this model beats that benchmark.
With an average of 126,597 miles at 34 years old, MERCEDES 300 owners tend to use this car less than the typical driver.
1990 MERCEDES 300 Fuel Costs
The 2968cc petrol engine is on the larger side, so fuel won't be this car's strong point. Expect around 30 mpg in mixed driving, which works out to roughly £1,592 per year at current petrol prices of 142p per litre (based on 7,400 miles per year).
What does it cost to own a 1990 MERCEDES 300?
Total estimated annual running cost is £2,247 (£187/month), broken down as £1592 fuel, £250 road tax, £55 MOT, and £350 predicted repairs. Repair costs are moderate, reflecting the 84% pass rate. Keeping on top of servicing will help avoid surprises.
MERCEDES 300 Reliability Trend
The MERCEDES 300 has maintained consistent MOT pass rates across model years, varying by only 0 percentage points.
Buying a Used 1990 MERCEDES 300
At 34 years old, the MERCEDES 300 is firmly in budget territory. Purchase prices are low, but check for rust, worn suspension bushes, and electrical gremlins. A full service history is especially valuable at this age.
Alternatives to the 1990 MERCEDES 300
If reliability is your priority, there are 3 similar cars with a higher MOT pass rate. Here are comparable petrol cars with similar engines:
- PORSCHE 911 (1991) 91% pass rate (+7%) from 929 tests
- PORSCHE 944 (1990) 85% pass rate (+1%) from 914 tests
- MERCEDES SL (1992) 87% pass rate (+3%) from 312 tests
- MERCEDES 260 (1992) 78% pass rate (-6%) from 224 tests