MOT failure · RFR #30825
Windscreen or window damaged or seriously discoloured and affecting the driver's view of the road or of an obligatory external mirror
Total
3
Models
3
Models most at risk.
Ranked by rate, not raw volume. A Fiesta shows every failure a lot because there are a lot of Fiestas. Rate = share of that model's own MOTs.
Typical UK garage cost
£8–£60
for mirror glass / housing. Range covers regional rate spread + part-quality variance. Open the estimator →
Pre-empt this fail · Amazon UK
Replacement wing mirror glass
A cracked mirror glass on the offside is a fail; nearside is an advisory. £8 of self-adhesive replacement glass clears it.
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Frequently asked.
- Why does windscreen or window damaged or seriously… fail an MOT?
- Windscreen or window damaged or seriously discoloured and affecting the driver's view of the road or of an obligatory external mirror. Most commonly flagged on the Mercedes Benz Gla 200 Sport Auto. The DVSA's MOT standards require this item to meet minimum safety thresholds — when it falls short, the tester logs it as a Major or Dangerous defect and the car fails outright.
- How much does it cost to fix windscreen or window damaged or seriously…?
- Typical UK garage cost for mirror glass / housing is £8–£60. The range reflects regional labour rate differences and part-quality choices. Main dealer rates are usually 30–50% higher.
- Can I fix windscreen or window damaged or seriously… myself?
- Many owners handle this with basic tools. The parts or products listed above are commonly used for this repair. Check your vehicle handbook and confirm the fix clears the defect before booking a retest.