MOT reliability

Mercedes-benz Ml 420

Q: Is the Mercedes-benz Ml 420 reliable?

Across 1 Mercedes-benz Ml 420 vehicles in our MOT data, 71% pass the MOT (a 29% failure rate), with about 3.8 faults or advisories recorded per test.

1 vehicles · 17 completed MOT tests analysed

71%

MOT pass rate

Based on 1 Mercedes-benz Ml 420 vehicles and 17 completed MOT tests, the Mercedes-benz Ml 420 has an overall 71% pass rate, with an average recorded mileage of 107,826 miles.

Vehicles

MOT tests

5,736

Avg miles / year

3.8

Faults per test

Dangerous-fault share

Mercedes-benz Ml 420 problem areas

Where faults occur most across all Mercedes-benz Ml 420 MOT tests:

Tyres, wheels & suspension58%
Lamps & electrical16%
Other9%
Brakes9%
Body & structure5%
Steering2%
Emissions & nuisance2%

Mercedes-benz Ml 420 pass rate by age

Age (years)	Tests	Pass rate
3	1	100%
4	1	100%
5	1	100%
6	1	100%
7	2	50%
8	1	100%
9	1	100%
13	1	100%
14	2	50%
15	2	50%
16	2	50%
17	2	50%

Fuel types: Diesel (1)

Most common Mercedes-benz Ml 420 MOT faults

These are the faults and advisories recorded most often across Mercedes-benz Ml 420 MOT tests:

Nearside Front Anti-roll bar pin or bush worn but not resulting in excessive movement Slight (5.3.4 (a) (i)) (4 times)
Nearside Front Suspension arm pin or bush worn but not resulting in excessive movement Slight (5.3.4 (a) (i)) (4 times)
Offside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement Slight (5.3.4 (a) (i)) (4 times)
Front Inner Brake disc worn, but not excessively (1.1.14 (a) (i)) (2 times)
Rear Inner Brake disc worn, but not excessively Scored / lipped (1.1.14 (a) (i)) (2 times)
Nearside Front Lower Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (2 times)
Nearside Front Outer Tyre slightly damaged/cracking or perishing Kerb Damage (5.2.3 (d) (ii)) (2 times)
Nearside Front Upper Suspension arm pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (2 times)
Nearside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (2 times)
Nearside Rear Outer Tyre slightly damaged/cracking or perishing Kerb damage (5.2.3 (d) (ii)) (2 times)
Offside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement (5.3.4 (a) (i)) (2 times)
Age Related Surface rust / corrosion Front & rear of vehicle (2 times)
Front Anti-roll bar pin or bush worn but not resulting in excessive movement Both sides Slight (5.3.4 (a) (i)) (2 times)
Front Tyre has a cut but not deep enough to reach the ply or cords Both Fronts (2) two Various small deep cuts and small stones in treads (5.2.3 (d) (i)) (2 times)
Front Upper Suspension arm pin or bush worn but not resulting in excessive movement Arm (Both sides) Slight (5.3.4 (a) (i)) (2 times)

Mercedes-benz Ml 420 pass rate by registration year

Year	Vehicles	Tests	Pass rate	Avg mileage
2008	1	17	71%	107,826

Mercedes-benz Ml 420 reliability FAQ

Across 1 Mercedes-benz Ml 420 vehicles in our MOT data, 71% pass the MOT (a 29% failure rate), with about 3.8 faults or advisories recorded per test.

The most frequently recorded Mercedes-benz Ml 420 MOT issues are: Nearside Front Anti-roll bar pin or bush worn but not resulting in excessive movement Slight (5.3.4 (a) (i)); Nearside Front Suspension arm pin or bush worn but not resulting in excessive movement Slight (5.3.4 (a) (i)); Offside Rear Anti-roll bar pin or bush worn but not resulting in excessive movement Slight (5.3.4 (a) (i)).

The typical Mercedes-benz Ml 420 in our data has covered around 107,826 miles.

Compare the Mercedes-benz Ml 420

See how the Mercedes-benz Ml 420 stacks up against other Mercedes-benz models on MOT reliability:

Ml 420 vs C Ml 420 vs E Ml 420 vs Sprinter Ml 420 vs A-class

Check a specific Mercedes-benz Ml 420

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