GTA DIAGNOSTIX LIMITED
MOT Test Centre in Porthmadog
Station Details
- Address
- MADOG MOTOR MUSEUM, SNOWDON STREET
- Postcode
- LL49 9DF
- Phone
- 0176 651 5558
- Vehicle Classes
- Class 4
What This Centre Tests
Class 4 — Cars & Light Vans
Max £54.85Cars, taxis, private hire vehicles, ambulances, motor caravans, and goods vehicles up to 3,000kg.
Area Information
80.5%
Area MOT pass rate: 80.5%
National average: 82.3% • 6 centres in Porthmadog
County/District: Gwynedd
💡 Before Your MOT at GTA DIAGNOSTIX LIMITED
- Check all lights — blown bulbs are the #1 MOT failure
- Tyre tread must be at least 1.6mm (use the 20p coin test)
- Dashboard warning lights (engine, ABS, airbag) must not stay on
- Windscreen wipers must clear effectively and washer fluid must work
- Book in the morning — gives time for repairs + retest the same day
Frequently Asked Questions
What vehicle classes does GTA DIAGNOSTIX LIMITED test?▼
GTA DIAGNOSTIX LIMITED is authorised to conduct MOT tests for Class 4 vehicles. This includes cars, taxis, and light vans.
How much does an MOT cost at GTA DIAGNOSTIX LIMITED?▼
The DVSA sets maximum MOT fees: £54.85 for cars (Class 4), £29.65 for motorcycles, and £58.60 for large vans (Class 7). Many garages charge less than the maximum. Call GTA DIAGNOSTIX LIMITED on 0176 651 5558 for their current price.
Where is GTA DIAGNOSTIX LIMITED located?▼
GTA DIAGNOSTIX LIMITED is located at MADOG MOTOR MUSEUM, SNOWDON STREET, LL49 9DF in Porthmadog. The area is in Gwynedd.
What if my car fails the MOT at GTA DIAGNOSTIX LIMITED?▼
If your vehicle fails, GTA DIAGNOSTIX LIMITED will provide a list of failure items. If they repair the faults and retest within 10 working days, the partial retest is usually free. You can also get repairs done elsewhere and return for a full retest.