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|
Most
common reasons for MOT failures
Department for Tranport statistics
Transport Statistics Great Britain
Road vehicle testing scheme (MOT): percentage of tests
with one or more Fail or PRS1 type RfRs2
in defect group: 2007/08 to 2012/13
|
|
|
Failure Percentage Rates |
|
2007/08 |
2008/09 |
2009/10 |
2010/11 |
2011/12 |
2012/13 |
| Motorcycles: |
| Motorcycle body and structure |
0.9 |
1.0 |
1.0 |
0.9 |
1.0 |
0.9 |
| Motorcycle brakes |
5.8 |
5.9 |
5.8 |
5.3 |
5.1 |
5.2 |
| Motorcycle drive system |
1.2 |
1.4 |
1.5 |
1.4 |
1.4 |
1.4 |
| Motorcycle driving controls |
0.4 |
0.5 |
0.5 |
0.4 |
0.4 |
0.5 |
| Motorcycle fuel and exhaust |
1.7 |
1.7 |
1.6 |
1.4 |
1.3 |
1.2 |
| Motorcycle lighting and signalling |
10.8 |
11.5 |
11.8 |
10.8 |
11.0 |
10.8 |
| Motorcycle reg plates and vin |
1.0 |
1.4 |
1.9 |
1.5 |
1.4 |
1.2 |
| Motorcycle sidecar |
- |
- |
- |
0.0 |
0.0 |
0.0 |
| Motorcycle steering and suspension |
5.8 |
5.7 |
5.6 |
4.9 |
4.8 |
4.5 |
| Motorcycle tyres and wheels |
3.7 |
3.8 |
3.8 |
3.6 |
3.6 |
3.5 |
| Cars
and other passenger vehicles (up to 12 seats): |
| Body and structure |
1.8 |
1.8 |
1.7 |
1.4 |
1.4 |
1.4 |
| Brakes |
12.9 |
12.8 |
12.9 |
10.7 |
10.4 |
10.2 |
| Drivers view of the road |
8.0 |
8.4 |
8.5 |
7.7 |
7.5 |
6.9 |
| Driving controls |
- |
- |
- |
0.0 |
0.0 |
0.0 |
| Fuel and exhaust |
7.2 |
6.9 |
6.7 |
5.5 |
5.2 |
4.8 |
| Lighting and signalling |
19.8 |
20.7 |
21.0 |
18.6 |
18.6 |
18.7 |
| Reasons specific to motor tricycles and quadricycles |
- |
- |
- |
0.0 |
0.0 |
0.0 |
| Registration plates and VIN |
1.4 |
1.5 |
1.7 |
1.2 |
1.0 |
0.9 |
| Road wheels |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
0.4 |
| Seat belts |
1.9 |
1.9 |
2.0 |
1.7 |
1.5 |
1.4 |
| Steering |
2.9 |
2.9 |
3.1 |
3.2 |
3.5 |
3.4 |
| Suspension |
12.4 |
12.7 |
13.4 |
11.9 |
12.2 |
12.5 |
| Towbars3 |
- |
- |
0.1 |
0.1 |
0.1 |
0.0 |
| Tyres |
9.1 |
9.2 |
9.0 |
8.0 |
7.8 |
7.7 |
| Private
passenger vehicles (more than 12 seats): |
| Body and structure |
5.4 |
5.5 |
5.3 |
4.6 |
4.6 |
5.0 |
| Brakes |
13.0 |
13.5 |
13.6 |
12.1 |
12.2 |
12.7 |
| Drivers view of the road |
6.0 |
6.4 |
6.5 |
6.5 |
6.2 |
5.6 |
| Driving controls |
1.0 |
2.3 |
1.5 |
1.1 |
1.0 |
1.0 |
| Fuel and exhaust |
4.7 |
4.6 |
4.3 |
3.6 |
3.7 |
3.4 |
| Lighting and signalling |
16.0 |
17.5 |
17.6 |
16.7 |
16.2 |
17.0 |
| Reg plates and vin |
0.5 |
1.1 |
1.1 |
0.8 |
0.6 |
0.6 |
| Road wheels |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
| Seat belts |
8.1 |
8.3 |
8.1 |
7.1 |
6.5 |
6.4 |
| Steering |
3.3 |
3.6 |
3.8 |
3.6 |
4.1 |
4.2 |
| Suspension |
7.2 |
7.4 |
7.4 |
6.5 |
6.5 |
6.9 |
| Towbars3 |
- |
- |
0.2 |
0.2 |
0.1 |
0.1 |
| Tyres |
3.6 |
3.9 |
3.9 |
3.7 |
3.7 |
3.8 |
| Goods
vehicles between 3,000 and 3,500 kg gross weight: |
| Body and structure |
6.2 |
6.1 |
5.8 |
4.8 |
4.4 |
4.6 |
| Brakes |
25.0 |
24.8 |
25.1 |
22.2 |
21.5 |
21.8 |
| Drivers view of the road |
13.1 |
13.3 |
13.1 |
12.1 |
11.3 |
10.4 |
| Fuel and exhaust |
8.4 |
7.8 |
7.2 |
5.8 |
5.3 |
4.8 |
| Lighting and signalling |
30.6 |
31.9 |
32.3 |
29.5 |
28.8 |
29.8 |
| Reg plates and vin |
2.4 |
2.5 |
2.6 |
1.9 |
1.6 |
1.4 |
| Road wheels |
0.4 |
0.4 |
0.4 |
0.3 |
0.3 |
0.3 |
| Seat belts |
4.6 |
4.7 |
4.5 |
3.6 |
3.1 |
2.9 |
| Steering |
6.4 |
6.1 |
6.4 |
7.0 |
7.5 |
7.3 |
| Suspension |
19.4 |
18.7 |
17.8 |
15.4 |
15.0 |
15.4 |
| Towbars3 |
- |
- |
0.5 |
0.4 |
0.3 |
0.3 |
| Tyres |
8.1 |
8.0 |
7.9 |
7.4 |
7.2 |
7.2 |
1.Pass after Rectification at the Station (PRS). This indicates that
a vehicle initially failed its test
It was then repaired within one hour of the test, re-tested and passed.
2.RfR = Reason for Rejection
3.The testing of towbars only became part of the MOT test on 27th
April 2009
Department
for Tranport statistics
Transport Statistics Great Britain
Road vehicle testing scheme (MOT) test results: 2000/01 to 2012/13
| Thousands/percentages |
| |
2000/01 |
2001/02 |
2002/03 |
2003/04 |
2004/05 |
2005/06 |
2006/07 |
2007/08 |
2008/09 |
2009/10 |
2010/11 |
2011/12 |
2012/13 |
| Motorcycles:
|
| Tested |
567.8 |
568.4 |
584.9 |
745.0 |
801.0 |
873.2 |
902.6 |
897.9 |
942.0 |
948.3 |
989.6 |
1,032.4 |
967.0 |
| PRS2 |
|
|
|
|
|
|
48.5 |
57.9 |
70.9 |
76.1 |
79.2 |
85.5 |
80.3 |
| Failed |
112.9 |
113.1 |
108.2 |
134.0 |
166.5 |
164.1 |
115.9 |
118.7 |
124.7 |
126.1 |
126.2 |
130.5 |
119.0 |
| Initial
Failure Rate3 |
19.9 |
19.9 |
18.5 |
18.0 |
20.8 |
18.8 |
18.2 |
19.7 |
20.8 |
21.3 |
20.8 |
20.9 |
20.6 |
| Final Failure
Rate4 |
|
|
|
|
|
|
12.8 |
13.2 |
13.2 |
13.3 |
12.8 |
12.6 |
12.3 |
| Cars
and other passenger vehicles (up to 12 seats): |
| Tested |
22,775.0 |
22,768.0 |
22,781.0 |
22,509.0 |
20,695.0 |
22,665.0 |
24,416.9 |
24,912.5 |
25,537.7 |
26,047.5 |
26,637.5 |
26,827.4 |
26,872.4 |
| PRS2 |
|
|
|
|
|
|
1,865.0 |
2,267.6 |
2,502.5 |
2,495.0 |
2,515.7 |
2,573.3 |
2,580.9 |
| Failed |
7,212.8 |
7,281.2 |
7,084.9 |
6,622.1 |
5,951.9 |
7,516.4 |
6,885.9 |
7,318.4 |
7,676.0 |
8,070.3 |
8,075.9 |
8,184.5 |
8,031.2 |
| Initial
Failure Rate3 |
31.7 |
32.0 |
31.1 |
29.4 |
28.8 |
33.2 |
35.8 |
38.5 |
39.9 |
40.6 |
39.8 |
40.1 |
39.5 |
| Final Failure
Rate4 |
|
|
|
|
|
|
28.2 |
29.4 |
30.1 |
31.0 |
30.3 |
30.5 |
29.9 |
| Private
passenger vehicles (more than 12 seats): |
| Tested |
27.0 |
28.0 |
27.0 |
44.00 |
30.0 |
46.4 |
49.4 |
48.7 |
49.6 |
49.5 |
49.2 |
48.3 |
46.8 |
| PRS2 |
|
|
|
|
|
|
2.2 |
2.6 |
3.1 |
3.3 |
3.5 |
3.4 |
3.3 |
| Failed |
6.64 |
5.9 |
5.3 |
10.8 |
5.01 |
12.7 |
12.5 |
13.2 |
14.2 |
13.9 |
13.5 |
13.3 |
12.9 |
| Initial
Failure Rate3 |
24.6 |
21.0 |
19.5 |
24.6 |
17.0 |
27.5 |
29.7 |
32.4 |
34.9 |
34.7 |
34.5 |
34.5 |
34.7 |
| Final Failure
Rate4 |
|
|
|
|
|
|
25.4 |
27.0 |
28.7 |
28.1 |
27.4 |
27.5 |
27.6 |
| Goods
vehicles between 3,000 and 3,500 kg gross weight: |
| Tested |
283.0 |
284.0 |
376.0 |
495.0 |
634.0 |
437.4 |
495.3 |
520.7 |
541.3 |
563.8 |
602.1 |
608.1 |
587.8 |
| PRS2 |
|
|
|
|
|
|
26.0 |
34.8 |
44.0 |
47.9 |
53.1 |
55.6 |
56.5 |
| Failed |
89.6 |
97.5 |
132.0 |
167.3 |
209.0 |
190.5 |
200.3 |
214.7 |
223.2 |
233.8 |
244.8 |
247.5 |
235.7 |
| Initial
Failure Rate3 |
35.9 |
34.4 |
35.1 |
33.8 |
33.0 |
43.6 |
45.7 |
47.9 |
49.3 |
50.0 |
49.5 |
49.8 |
49.7 |
| Final Failure
Rate4 |
|
|
|
|
|
|
40.4 |
41.2 |
41.2 |
41.5 |
40.7 |
40.7 |
40.1 |
|
All vehicles: |
| Tested |
23,652.8 |
23,648.4 |
23,768.9 |
23,793.0 |
22,160.0 |
24,022.0 |
25,864.2 |
26,379.9 |
27,070.6 |
27,609.1 |
28,278.3 |
28,516.2 |
28,473.9 |
| PRS2 |
|
|
|
|
|
|
1,941.6 |
2,362.8 |
2,620.4 |
2,622.3 |
2,651.6 |
2,717.8 |
2,721.0 |
| Failed |
7,422.0 |
7,497.7 |
7,330.4 |
6,934.2 |
6,332.4 |
7,883.8 |
7,214.7 |
7,665.0 |
8,038.1 |
8,444.1 |
8,460.4 |
8,575.7 |
8,398.8 |
| Initial
Failure Rate3 |
31.4 |
31.7 |
30.8 |
29.1 |
28.6 |
32.8 |
35.4 |
38.0 |
39.4 |
40.1 |
39.3 |
39.6 |
39.1 |
| Final Failure
Rate4 |
|
|
|
|
|
|
27.9 |
29.1 |
29.7 |
30.6 |
29.9 |
30.1 |
29.5 |
1. MOT computerised
figures are available from 2005/06 but computerisation was only phased
in at the vehicle testing stations during that year.
This results in the shortfall in volumes for 2005/06 in comparison
to later years. Full records are available from 2006/07, and up to
2004/05 a
2% Sample Survey was used. Figures prior to 2006/07 are either
incomplete or estimated and should be treated with caution.
2. Pass after Rectification at the Station (PRS). This indicates
that a vehicle initially failed its test. It was then repaired within
one hour of the test,
re-tested and passed.
3. Initial Failure Rate = (PRS + Failures) / Total Tests
4. Final Failure Rate = Failures / Total Tests
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