MOT cost .

MOT failure · RFR #40054

Number plate showing an incorrect registration

Total

11

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.

Failure match · your reg

Does this failure affect your car?

Enter your reg and we'll check whether your model appears on the affected list — and where it ranks.

Want full MOT history, pass rate, and advisories? Use the reg checker →

GB

Reg saved only in this browser; we never log it server-side. The lookup runs once against the official records each time you submit.

  1. 01 Ktm Unclassified 0.43%
  2. 02 Suzuki Gsr 0.22%
  3. 03 Honda Cmx 500 A X 0.15%

Typical UK garage cost

£15–£35

for MOT-spec plate set. Range covers regional rate spread + part-quality variance. Open the estimator →

Pre-empt this fail · Amazon UK

MOT-spec replacement number plate

Faded or non-standard plates fail outright. Replacements take ten minutes online with V5C details.

Frequently asked.

Why does number plate showing an incorrect registration fail an MOT?
Number plate showing an incorrect registration. Most commonly flagged on the Ktm Unclassified. 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 number plate showing an incorrect registration?
Typical UK garage cost for MOT-spec plate set is £15–£35. The range reflects regional labour rate differences and part-quality choices. Main dealer rates are usually 30–50% higher.
Can I fix number plate showing an incorrect registration 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.

Click Mechanic · affiliate

Book a mobile mechanic

Affiliate links — small commission, no extra cost to you.

Mobile mechanic · UK-wide

Book a mechanic at your door.

Fixed-price quotes upfront. No garage needed. Click Mechanic sends a vetted local mechanic to you — home, work, or roadside.

Get a quote →