MOT failure · RFR #30844
Obligatory mirror or device inoperative, excessively damaged or insecure
Total
7
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.
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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 obligatory mirror or device inoperative, excessively… fail an MOT?
- Obligatory mirror or device inoperative, excessively damaged or insecure. Most commonly flagged on the Ferrari 458. UK 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 obligatory mirror or device inoperative, excessively…?
- 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 obligatory mirror or device inoperative, excessively… 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.
My Motor World · affiliate
Parts & supplies for this fix
Affiliate links — small commission, no extra cost to you.
Summit
Summit SRG-16 Replacement Stick-On Standard Mirror Glass RHS
£3.29
View at My Motor World →
Summit
Summit SRG-03 Replacement Stick-On Standard Mirror Glass RHS
£4.39
View at My Motor World →
Summit
Summit SRG-114 Replacement Stick-On Standard Mirror Glass RHS
£4.39
View at My Motor World →
Summit
Summit SRG-12 Replacement Stick-On Standard Mirror Glass RHS
£4.39
View at My Motor World →
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