Class 4 & 7 MOT testing, dealer-level diagnostics, ECU coding and remapping — all under one roof at Great Richmond Street. Book online in 30 seconds.
Same-day MOT appointments available. Don’t wait days for your MOT — book today and have your vehicle tested by qualified MOT testers. Cars and vans.
We collect your car or van from your home or workplace, carry out the MOT at our fully equipped testing station, then return it to you when it’s ready. You don’t need to take time out of your day.
Contact us for a price — it depends on your area. Message us on WhatsApp for a quick quote.
From the annual MOT to work most garages send away — coding, programming and ECU repair are done in-house.
Class 4 & 7 on site. Book a slot, wait with a brew, drive out with your certificate.
Warning light on? Full-system scans with dealer-level tooling, plain-English report.
Bench repair, cloning and coding of engine ECUs — the work other garages outsource.
Safe, tested performance and economy maps, tailored to your engine.
Restore lost power and clear the smoke — without the £1,000+ replacement bill.
Cold air, smooth drive — any car, hybrid and electric included. Leak check with every regas.
Lost, spare or smart keys cut and coded to your car while you wait.
Faults traced and fixed — wiring, sensors, batteries, charging systems.
Pads, discs, springs and shocks — fitted right, checked twice.
We're a DVSA-approved test station for cars (Class 4) and vans up to 3.5t (Class 7). Fail on something small? Fix it with us and the retest is free.
Most drivers only learn about MOT classes when they come to book. For cars it’s easy. With vans, it comes down to weight. We test both at our MOT test centre in Liverpool, so there’s no need to find a second garage for the work van.
These photos are our actual bench. Most garages send ECU work away and add their margin — we do it in-house on Great Richmond Street.
Plenty of faults don’t wait for your MOT date. A warning light pops up on the way to work, or the car won’t start on a cold morning.
Our vehicle diagnostics in Liverpool start with a full-system scan on dealer-level kit. The results come back as a plain-English report, so you know what the fault codes actually mean.
Looking for an auto electrician in Liverpool? We trace and fix wiring, sensor, battery and charging faults. Electrical problems can be fiddly, and finding the real cause saves you paying for parts you didn’t need.
At a lot of garages, ECU repair in Liverpool means your module gets sent away. Here, yours stays on our own bench at Great Richmond Street, where we repair, clone and code it.
MOT due soon too? You can book your MOT and service work together. An MOT with a full diagnostic scan costs £75.
| Monday – Saturday | 8:00 – 18:00 |
| Sunday | Closed |
Your slot is reserved.
NJ Autos will confirm your booking by text or email during opening hours. Questions? Call 0151 903 8239.