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In partnership with AXA™ InsuranceThere are hundreds of potential error codes, which only specialist diagnostic equipment can read. So when a warning light flashes on the dashboard, a diagnostics check is needed to assess how bad the problem is, and what may have caused it.
The warning light is just the beginning—it doesn’t give the whole picture. There are hundreds of parts in your engine, so the exact nature of the fault may not be immediately apparent.
Save up to 30% on your diagnostic inspection in Liverpool. See our table below to browse our honest, upfront prices.
Daniel, from London
Hey Fixter,
Terry, Fixter in-house mechanic expert
Free collection and delivery — anywhere, anytime
There are hundreds of potential error codes, which only specialist diagnostic equipment can read. So when a warning light flashes on the dashboard, a diagnostics check is needed to assess how bad the problem is, and what may have caused it.
The warning light is just the beginning—it doesn’t give the whole picture. There are hundreds of parts in your engine, so the exact nature of the fault may not be immediately apparent.
Save up to 30% on your diagnostic inspection in Liverpool. See our table below to browse our honest, upfront prices.
Daniel, from London
Hey Fixter,
Terry, Fixter in-house mechanic expert
Free collection and delivery — anywhere, anytime
| Car make and model | Dealers average price | exclusive price | Instant savings |
|---|---|---|---|
 Dacia Duster 1.6 litres | £53.23 | £44.50 | 16% |
 Fiat 500 Lounge Rhd 1.2 litres | £48.47 | £40.83 | 16% |
 Citroen Berlingo 600 Hdi 1.6 litres | £49.44 | £41.24 | 17% |
 DS Ds4 Crossback 1.2 litres | £51.51 | £42.46 | 18% |
Dacia Duster Ambiance Dci 1.5 litres | £48.14 | £40.83 | 15% |
Fiat Grande Punto 1.9 litres | £48.34 | £40.83 | 16% |
Fiat 500l 0.9 litres | £49.23 | £41.65 | 15% |
Dacia Duster Laureate Dci 1.5 litres | £49.85 | £41.65 | 16% |
DS Ds3 Cabriolet 1.6 litres | £54.16 | £44.50 | 18% |
Citroen Berlingo M Sp 1.6 litres | £50.38 | £42.05 | 17% |
Dacia Duster 1.6 litres | £53.23 | £44.50 | 16% |
Citroen Berlingo 600 Hdi 1.6 litres | £49.44 | £41.24 | 17% |
DS Ds4 Crossback 1.2 litres | £51.51 | £42.46 | 18% |
Dacia Duster Laureate Dci 1.5 litres | £49.85 | £41.65 | 16% |
Citroen Berlingo M Sp 1.6 litres | £50.38 | £42.05 | 17% |
* The cost of your diagnostic inspection depends on your car make and model and may vary depending on your location.
Anthony from Huddersfield
This is the second time I have used this brilliant service and it was flawless again. I booked the collection for 8am the driver was there for 7:55am I asked for the car back before 4pm it was as back for 2pm. This service is perfect for busy people like myself. Well worth the 5 star rating I have g...
Nikos from Manchester
I was very skeptical initially with the service I was going to be provided by Fixter. Nevertheless it is very convenient that they come and get your car from any place and date. So I booked for a major service on the date and place I wanted. On that day, a guy came with his folded bike (10mins late)...
Jason from Altrincham
I thought it made the mot and service ball ache a lot better, I got to stay at home and the friendly chap came and took my car off for work. You get kept informed all the way through the process. I will be using fixter next time
Calnette from Manchester
I booked in for a major service and MOT. They were very efficient. They picked up my car, serviced it well and returned it well in time. Thank you guys so much
Angela from Salford
Excellent! Recommend to everyone.. great prices and great job done! Thank you!
Raja
Very good service will be using it agen
We personally select every local garage based on our unique 25-point criteria, which includes staff qualifications, equipment standards and customer ratings.
Fully qualified mechanics with 10+ years’ experience 👨🔧
Your car is in the UK’s safest expert hands.
Manufacturer-equivalent parts only ⚙️
Identical to your manufacturer’s, but much cheaper!
In-house experts approve all work personally 🔍
Every service carried out by our partner garages is fully reviewed.
12-month warranty on parts and labour 🛠
Any additional work needed will be carried out for free.
We personally select every local garage based on our unique 25-point criteria, which includes staff qualifications, equipment standards and customer ratings.
Fully qualified mechanics with 10+ years’ experience 👨🔧
Your car is in the UK’s safest expert hands.
Manufacturer-equivalent parts only ⚙️
Identical to your manufacturer’s, but much cheaper!
In-house experts approve all work personally 🔍
Every service carried out by our partner garages is fully reviewed.
12-month warranty on parts and labour 🛠
Any additional work needed will be carried out for free.
What is a diagnostic inspection?What happens at a Fixter diagnostic inspectionWhat happens when my dashboard illuminates a warning light?Modern cars have an onboard computer or Engine Control Unit (ECU). This continually assesses performance, with sensors throughout the car letting the ECU know of issues such as raised engine temperature, low fluid levels or problems with emission levels or the windscreen wipers. The ECU triggers an error once a problem has been found, and the relevant dashboard warning light will flash, but there are hundreds of potential error codes, which only specialist diagnostic equipment can read. So when a warning light flashes on the dashboard, a diagnostics check is needed to assess how bad the problem is, and what may have caused it.
Live data shows multiple readings from across the engine to assess whether everything is working as it should. The equipment can also check and rectify braking systems where there’s an electronic handbrake, and adjust headlights where possible. You don’t need to go to a dealership to get diagnostic testing done. Most garages and workshops will carry out diagnostic testing for nearly all models and types of vehicle.
We charge a fixed fee for diagnostic testing that can be done while you wait. This is usually done within an hour, but if further work is required, it will clearly take more time. Our highly-trained and qualified mechanics will give you a no-charge, no-obligation repair quote if testing highlights issues with the engine or anything else, and talk you in detail through what is needed to put things right.
So next time a dashboard warning light flashes on, don’t pay dealership prices for diagnostic testing. Let us manage it all for you, picking up your car for its testing, and ensuring a fair price and a reliable service.
The warning light is just the beginning—it doesn’t give the whole picture. There are hundreds of parts in your engine, so the exact nature of the fault may not be immediately apparent.
A diagnostic check accurately identifies the fault, avoiding more serious problems that could lead to costly repairs, potential safety hazards or worse damage. With these tests, your car is plugged into sophisticated diagnostic equipment which reads the error codes your car’s ECU has generated to explain the issue in full. Diagnostic checking looks for errors across various vehicle systems, including tyres, engine management, lights, emissions and more.
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