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
2,424,122
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 1,376,718
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
1714 models affected
- 02 613,214
Wiper blade missing or obviously not clearing the windscreen
1327 models affected
- 03 351,005
Wiper blade defective
1270 models affected
- 04 68,894
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
468 models affected
- 05 13,027
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
384 models affected
- 06 835
Windscreen or window excessively tinted but not adversely affecting driver's view
61 models affected
- 07 114
Windscreen or window damaged or seriously discoloured and affecting the driver's view of the road or of an obligatory external mirror
32 models affected
- 08 91
Windscreen or window excessively tinted but not adversely affecting driver's view
14 models affected
- 09 43
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
8 models affected
- 10 34
Windscreen or window damaged or seriously discoloured but not affecting driver's view
9 models affected
- 11 24
Obligatory mirror or device inoperative, excessively damaged or insecure
4 models affected
- 12 22
Windscreen washers not working or not providing sufficient fluid to clear the windscreen
7 models affected
- 13 14
Windscreen or window in an unacceptable condition e.g. due to excessive scratching
6 models affected
- 14 13
Obligatory mirror or device not providing an adequate view to the rear
1 models affected
- 15 13
Obligatory mirror or device missing
3 models affected
- 16 13
Wiper not operating or missing
3 models affected
- 17 10
An obstruction significantly affecting the driver's view of the road through the swept area of the windscreen or an obligatory external mirror not visible
7 models affected
- 18 7
Obligatory mirror or device inoperative, excessively damaged or insecure
3 models affected
- 19 7
Wiper blade missing or obviously not clearing the windscreen
2 models affected
- 20 7
Windscreen or window damaged or seriously discoloured but not adversely affecting driver's view
3 models affected
- 21 6
Windscreen in such a condition that visibility through swept area is seriously affected
2 models affected
- 22 5
Obligatory mirror or device not providing an adequate view to the rear
4 models affected
- 23 4
Windscreen or window damaged or seriously discoloured but not affecting driver's view
1 models affected
- 24 2
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
Brands most affected.
Total category-fails across each manufacturer's tested fleet. High-volume brands naturally lead — read alongside their model pass-rates.