Mercedes-Benz B reliability and MOT data

Time Period & Model

Time period snapshot: Last 5 years

Manufacturer: Mercedes-Benz

Model: B

Model reliability rank
58
MOT-based rank from 32,968 selected-period tests.
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Overall MOT pass rate
91.0%
Share of this model's 32,968 selected-period MOT tests that pass.
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Efficiency, emissions & tax
Average MPG
-
CO2 emission
-
Euro emissions
-
Tax cost
£200/yr
Average vehicle miles
35,578
Lower average mileage in the analysed fleet.
Life expectancy miles
71,937
Lower mature-fleet mileage expectation.
Average vehicle age
5.7
Shorter age profile in the current analysed pool.
Market share
0.02%
0.02% share within the active represented vehicle pool.
Vehicles represented
7,613
7,612 valid MOT, 1 under 3 years.
Tests analysed
32,968
32,968 MOT tests in the selected period.
Rarity ranking
Based on Make & Model
Rare
7,613On the road
Insight summary

Mercedes-Benz B is a rare model in this snapshot, with 7,613 represented vehicles and 0.02% of the active UK pool tracked by AutoRank. For the last 5 years, it has a pass rate of 91.0% from 32,968 MOT tests, with a reliability score of 58. The current pool shows an average of 35,578 miles and an average age of 5.7 years, while mature-fleet mileage is estimated at 71,937 miles. Petrol leads the fuel split, followed by diesel, and the most frequent defect themes are windscreen damage, lighting and tyre condition. The practical read is that the Mercedes-Benz B looks a little better than average, but still rewards careful checks on mileage and maintenance.

Fuel type breakdown (by model)
FuelVehicles
PETROL4,570
DIESEL3,041
ELECTRIC1
ELECTRIC DIESEL1
PETROL60.0%4,570 vehicles
Euro NCAP Safety
NCAP rating
5 / 5
Adult
96%
Children
90%
Pedestrian
78%
Safety systems
75%
Top 25 most common defects (by model)
DefectCount
Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))225
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))207
Nearside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))195
Nearside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))163
Front Windscreen wiper blade defective (3.4 (b) (i))148
Offside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))145
Offside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))145
Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))127
Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))102
Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))101
Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))90
Rear Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))78
Offside Headlamp aim too low (4.1.2 (a))77
Nearside Headlamp aim too low (4.1.2 (a))66
Nearside Front Headlamp aim too low (4.1.2 (a))59
Offside Front Headlamp aim too low (4.1.2 (a))59
Tyre pressure monitoring system malfunctioning or obviously inoperative (5.2.3 (h))57
Offside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))56
Offside Front Windscreen wiper blade defective (3.4 (b) (i))55
Windscreen washer provides insufficient washer liquid (3.5 (a))53
Nearside Rear Tyre has ply or cords exposed (5.2.3 (d) (ii))52
Windscreen wiper blade defective (3.4 (b) (i))52
Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))47
Nearside Front Windscreen wiper blade defective (3.4 (b) (i))46
Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))46
All 25 defects ranked by recorded countShowing 2,451 defects across this top 25 set
01
Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))
9.2% of displayed top 25
225
02
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))
8.4% of displayed top 25
207
03
Nearside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))
8.0% of displayed top 25
195
04
Nearside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))
6.7% of displayed top 25
163
05
Front Windscreen wiper blade defective (3.4 (b) (i))
6.0% of displayed top 25
148
06
Offside Front Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))
5.9% of displayed top 25
145
07
Offside Rear Tyre has a cut in excess of the requirements deep enough to reach the ply or cords (5.2.3 (d) (i))
5.9% of displayed top 25
145
08
Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))
5.2% of displayed top 25
127
09
Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))
4.2% of displayed top 25
102
10
Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
4.1% of displayed top 25
101
11
Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))
3.7% of displayed top 25
90
12
Rear Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))
3.2% of displayed top 25
78
13
Offside Headlamp aim too low (4.1.2 (a))
3.1% of displayed top 25
77
14
Nearside Headlamp aim too low (4.1.2 (a))
2.7% of displayed top 25
66
15
Nearside Front Headlamp aim too low (4.1.2 (a))
2.4% of displayed top 25
59
16
Offside Front Headlamp aim too low (4.1.2 (a))
2.4% of displayed top 25
59
17
Tyre pressure monitoring system malfunctioning or obviously inoperative (5.2.3 (h))
2.3% of displayed top 25
57
18
Offside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))
2.3% of displayed top 25
56
19
Offside Front Windscreen wiper blade defective (3.4 (b) (i))
2.2% of displayed top 25
55
20
Windscreen washer provides insufficient washer liquid (3.5 (a))
2.2% of displayed top 25
53
21
Nearside Rear Tyre has ply or cords exposed (5.2.3 (d) (ii))
2.1% of displayed top 25
52
22
Windscreen wiper blade defective (3.4 (b) (i))
2.1% of displayed top 25
52
23
Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))
1.9% of displayed top 25
47
24
Nearside Front Windscreen wiper blade defective (3.4 (b) (i))
1.9% of displayed top 25
46
25
Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
1.9% of displayed top 25
46