Failure category
Glass & mirrors
Windscreen damage, wiper blades, mirror glass, screenwash. Glass-and-mirror items often look minor but are testable failures.
Defect codes
24
Total fails
2,052,247
Defect codes in this category, ranked.
Sorted by total cars affected last year. Click any row for the full defect description plus the models most at risk.
- 01 1,095,022
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
1526 models affected
- 02 567,062
Wiper blade missing or obviously not clearing the windscreen
1205 models affected
- 03 274,964
Wiper blade defective
1051 models affected
- 04 65,097
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
429 models affected
- 05 49,666
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
325 models affected
- 06 191
Windscreen or window excessively tinted but not adversely affecting driver's view
34 models affected
- 07 91
Windscreen or window damaged or seriously discoloured and affecting the driver's view of the road or of an obligatory external mirror
43 models affected
- 08 44
Obligatory mirror or device inoperative, excessively damaged or insecure
14 models affected
- 09 25
Windscreen or window damaged or seriously discoloured but not affecting driver's view
11 models affected
- 10 19
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
10 models affected
- 11 19
Wiper not operating or missing
6 models affected
- 12 10
Windscreen or window excessively tinted but not adversely affecting driver's view
6 models affected
- 13 7
Windscreen or window in an unacceptable condition e.g. due to excessive scratching
5 models affected
- 14 7
Obligatory mirror or device inoperative, excessively damaged or insecure
6 models affected
- 15 7
An obstruction within the driver's field of view that materially affects his view in front or to the sides outside the swept area of windscreen
4 models affected
- 16 3
Obligatory mirror or device not providing an adequate view to the rear
3 models affected
- 17 3
Windscreen or window damaged or seriously discoloured and affecting the driver's view of the road or of an obligatory external mirror
3 models affected
- 18 2
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
2 models affected
- 19 2
Windscreen or window excessively tinted and visibility through swept area of windscreen or of an obligatory external mirror seriously affected
1 models affected
- 20 2
Obligatory mirror or device missing
2 models affected
- 21 1
Wiper not operating or missing
1 models affected
- 22 1
An obstruction within the driver's field of view that materially affects his view in front or to the sides outside the swept area of windscreen
1 models affected
- 23 1
Windscreen in such a condition that visibility through swept area is seriously affected
1 models affected
- 24 1
Windscreen or window damaged or seriously discoloured and affecting the driver's view of the road or of an obligatory external mirror
1 models affected
Brands most affected.
Total category-fails across each manufacturer's tested fleet. High-volume brands naturally lead — read alongside their model pass-rates.