MG 3 reliability and MOT data

Time Period & Model

Time period snapshot: Last 5 years

Manufacturer: MG

Model: 3

Model reliability rank
44
MOT-based rank from 110,357 selected-period tests.
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Overall MOT pass rate
80.1%
Share of this model's 110,357 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
45,231
Lower average mileage in the analysed fleet.
Life expectancy miles
57,433
Lower mature-fleet mileage expectation.
Average vehicle age
7.7
Shorter age profile in the current analysed pool.
Market share
0.04%
0.04% share within the active represented vehicle pool.
Vehicles represented
18,681
18,680 valid MOT, 1 under 3 years.
Tests analysed
110,357
110,357 MOT tests in the selected period.
Rarity ranking
Based on Make & Model
Scarce
18,681On the road
Insight summary

MG 3 is a scarce model in this snapshot, with 18,681 represented vehicles and 0.04% of the active UK pool tracked by AutoRank. For the last 5 years, it has a pass rate of 80.1% from 110,357 MOT tests, with a reliability score of 44. The current pool shows an average of 45,231 miles and an average age of 7.7 years, while mature-fleet mileage is estimated at 57,433 miles. Petrol leads the fuel split, followed by gas bi-fuel, and the most frequent defect themes are lighting, parking brake and tyre condition. The practical read is that the MG 3 deserves a careful inspection before buying, because condition and maintenance appear to matter more than the badge.

Fuel type breakdown (by model)
FuelVehicles
PETROL18,680
GAS BI-FUEL1
PETROL100.0%18,680 vehicles
Euro NCAP Safety
NCAP rating
4 / 5
Adult
74%
Children
73%
Pedestrian
81%
Safety systems
69%
Top 25 most common defects (by model)
DefectCount
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))1,753
Parking brake efficiency below requirements (1.4.2 (a) (i))1,314
Tyre pressure monitoring system malfunctioning or obviously inoperative (5.2.3 (h))1,287
Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))879
Windscreen washer provides insufficient washer liquid (3.5 (a))791
Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))663
Nearside Headlamp aim too low (4.1.2 (a))659
Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))633
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))627
Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))601
Nearside Front Headlamp aim too low (4.1.2 (a))595
Offside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))586
Offside Front Headlamp aim too low (4.1.2 (a))582
Offside Headlamp aim too low (4.1.2 (a))566
Nearside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))549
Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))543
Offside Rear Coil spring fractured or broken (5.3.1 (b) (i))541
Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))534
Offside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))525
Nearside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))524
Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))513
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))508
Nearside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))464
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))456
Nearside Front Windscreen wiper blade defective (3.4 (b) (i))427
All 25 defects ranked by recorded countShowing 17,120 defects across this top 25 set
01
Supplementary restraint system warning lamp indicates a fault (7.1.6 (a))
10.2% of displayed top 25
1,753
02
Parking brake efficiency below requirements (1.4.2 (a) (i))
7.7% of displayed top 25
1,314
03
Tyre pressure monitoring system malfunctioning or obviously inoperative (5.2.3 (h))
7.5% of displayed top 25
1,287
04
Windscreen damaged but not adversely affecting driver's view (3.2 (a) (i))
5.1% of displayed top 25
879
05
Windscreen washer provides insufficient washer liquid (3.5 (a))
4.6% of displayed top 25
791
06
Front Brake pad(s) less than 1.5 mm thick (1.1.13 (a) (ii))
3.9% of displayed top 25
663
07
Nearside Headlamp aim too low (4.1.2 (a))
3.8% of displayed top 25
659
08
Nearside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))
3.7% of displayed top 25
633
09
Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h))
3.7% of displayed top 25
627
10
Nearside Rear Coil spring fractured or broken (5.3.1 (b) (i))
3.5% of displayed top 25
601
11
Nearside Front Headlamp aim too low (4.1.2 (a))
3.5% of displayed top 25
595
12
Offside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))
3.4% of displayed top 25
586
13
Offside Front Headlamp aim too low (4.1.2 (a))
3.4% of displayed top 25
582
14
Offside Headlamp aim too low (4.1.2 (a))
3.3% of displayed top 25
566
15
Nearside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
3.2% of displayed top 25
549
16
Offside Front Tyre tread depth below requirements of 1.6mm (5.2.3 (e))
3.2% of displayed top 25
543
17
Offside Rear Coil spring fractured or broken (5.3.1 (b) (i))
3.2% of displayed top 25
541
18
Nearside Front Tyre has ply or cords exposed (5.2.3 (d) (ii))
3.1% of displayed top 25
534
19
Offside Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
3.1% of displayed top 25
525
20
Nearside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
3.1% of displayed top 25
524
21
Offside Front Windscreen wiper does not clear the windscreen effectively (3.4 (b) (ii))
3.0% of displayed top 25
513
22
Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii))
3.0% of displayed top 25
508
23
Nearside Rear Tyre tread depth below requirements of 1.6mm (5.2.3 (e))
2.7% of displayed top 25
464
24
Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii))
2.7% of displayed top 25
456
25
Nearside Front Windscreen wiper blade defective (3.4 (b) (i))
2.5% of displayed top 25
427