Skip to main content

Mercedes-benz 300 - 1989

204.9 faults per 100 tests
Year average for all cars of 1989 is 252.8 faults per 100 tests
Dataset: MOT tests in Great Britain (period: 2024-01-01 to 2025-09-10) for Mercedes-benz 300, model year 1989. Sample size: 643 cars, 1,214 tests and 2,487 recorded faults.
0%
Less faults compared to the average car of same model year

Quick summary

Total: 643 cars

The 1989 Mercedes-Benz 300 shows an overall defect rate of 205 per 100 vehicles, which is 18% lower than the average for cars of the same year, indicating a relatively strong performance. Notably, this model has fewer issues with lights and electrics, body structure, and equipment, with defect rates considerably below the yearly averages in these categories. While higher mileage groups display increasing defect rates, the model maintains a more favourable performance compared to its peers, especially in the lower mileage segments. Overall, the Mercedes-Benz 300 stands out for its reliability in key areas while exhibiting a lower overall defect rate.

Cars by mileage segment

Total: 643 cars

More model years for Mercedes-benz 300

1986 1987 1988 1989 1990 1991 1992 1993

Other models from Mercedes-benz

Mercedes-benz 190 E Mercedes-benz 300 Mercedes-benz A Mercedes-benz A 180 AMG LINE Mercedes-benz A 180 SPORT Mercedes-benz A 200 Mercedes-benz A 250 AMG LINE Mercedes-benz A-CLASS Mercedes-benz B Mercedes-benz B-CLASS Mercedes-benz C Mercedes-benz CITAN Mercedes-benz CL Mercedes-benz CL 500 Mercedes-benz CLA Mercedes-benz CLC Mercedes-benz CLK Mercedes-benz CLS Mercedes-benz E Mercedes-benz E 220 AMG Mercedes-benz EQA 250 AMG LINE Mercedes-benz EQC 400 AMG LINE Mercedes-benz ESPRINTER Mercedes-benz EVITO Mercedes-benz G Mercedes-benz G-CLASS Mercedes-benz GL Mercedes-benz GLA Mercedes-benz GLA 180 AMG LINE Mercedes-benz GLA 200 AMG LINE Mercedes-benz GLA 250 AMG LINE Mercedes-benz GLA 250 EXCLUSIVE Mercedes-benz GLB 200 AMG LINE Mercedes-benz GLB 220 AMG LINE Mercedes-benz GLC Mercedes-benz GLC 300 AMG Mercedes-benz GLC 300 AMG LINE Mercedes-benz GLE Mercedes-benz GLS Mercedes-benz GT Mercedes-benz ML Mercedes-benz R-Class Mercedes-benz S-Class Mercedes-benz SL Mercedes-benz SLC Mercedes-benz SLK Mercedes-benz SPRINTER Mercedes-benz V Mercedes-benz VIANO Mercedes-benz VITO Mercedes-benz X

Categories

Brakes
▲ 2.5% better
94.7 faults / 100 tests
Year avg: 97.1 / 100 tests
  • Brake pipe damaged or excessively corroded
  • Brake hose ferrules: excessively corroded
Steering
▲ 10.3% better
23.4 faults / 100 tests
Year avg: 26.1 / 100 tests
Visibility
▲ 17.7% better
18.1 faults / 100 tests
Year avg: 22.0 / 100 tests
Lights & Electrics
▲ 40.2% better
36.7 faults / 100 tests
Year avg: 61.4 / 100 tests
Wheels & Suspension
▲ 6.8% better
154.4 faults / 100 tests
Year avg: 165.6 / 100 tests
  • A tyre: with a lump, bulge or tear … or with cords exposed or damaged
  • A suspension pin, bush, joint or bearing: excessively worn
  • A spring: or spring component fractured or seriously weakened
  • Tyre tread depth not in accordance with the requirements
  • A wheel bearing: with excessive play
Body/Structure
▲ 39.7% better
37.2 faults / 100 tests
Year avg: 61.7 / 100 tests
  • Exhaust system has a major leak or is insecure
Equipment
▲ 83.2% better
3.1 faults / 100 tests
Year avg: 18.5 / 100 tests
Other
▲ 20.9% better
42.0 faults / 100 tests
Year avg: 53.1 / 100 tests
  • Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users

Fault rate by mileage segment

Model    Year average
0 502 0–31,000 mi 31,000–62,000 62,000–93,000 93,000–124,000 124,000+
* Metric: faults per 100 tests.

Most common faults (Top 10)

Fluid: leaking excessively and likely to harm the environment or to pose a safety risk to other road users
ADVISORY
Occurrences: 209
A tyre: with a lump, bulge or tear … or with cords exposed or damaged
ADVISORY
Occurrences: 183
Brake pipe damaged or excessively corroded
ADVISORY
Occurrences: 182
A suspension pin, bush, joint or bearing: excessively worn
ADVISORY
Occurrences: 134
A spring: or spring component fractured or seriously weakened
ADVISORY
Occurrences: 128
Tyre tread depth not in accordance with the requirements
ADVISORY
Occurrences: 101
Exhaust system has a major leak or is insecure
ADVISORY
Occurrences: 99
A wheel bearing: with excessive play
ADVISORY
Occurrences: 75
Brake hose ferrules: excessively corroded
ADVISORY
Occurrences: 72
A suspension component: excessively damaged or corroded
ADVISORY
Occurrences: 71

Serious faults (Top 10)

The aim of a headlamp is not within limits laid down in the requirements
FAIL
Occurrences: 40
Emissions levels exceed default limits
FAIL
Occurrences: 30
Significant brake effort recorded with no brake applied indicating a binding brake
FAIL
Occurrences: 24
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
FAIL
Occurrences: 24
Brake pipe damaged or excessively corroded
FAIL
Occurrences: 14
The strength or continuity of the load bearing structure within 30cm … is significantly reduced or inadequately repaired
FAIL
Occurrences: 14
Wiper blade: missing or obviously not clearing the windscreen
FAIL
Occurrences: 12
Exhaust system has a major leak or is insecure
FAIL
Occurrences: 11
A suspension joint dust cover: missing or no longer prevents the ingress of dirt etc.
FAIL
Occurrences: 11
A direction indicator: lamp missing, inoperative or in the case of a multiple light source more than 1/2 not functioning
FAIL
Occurrences: 10