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Top-rated mechanics

Top-rated mechanics

and garages across the UK

Upfront, fixed quotes

Upfront, fixed quotes

up to 30% cheaper than average

Manufacturer-equivalent

Manufacturer-equivalent

parts only

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Our expert insights into car diagnostic

Our expert insights into car diagnostic

What is a diagnostic inspection?

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.

What happens when my dashboard illuminates a warning light?

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.

View more symptomsView more symptoms

How much does it cost for my car diagnostic? car-diagnostic

Save up to 30% on your car diagnostic. See our table below to browse our honest, upfront prices.

Learn moreLearn more

Daniel, from London

Hey Fixter,

Daniel
Terry

Terry, Fixter in-house mechanic expert

checkedCollection and delivery — anywhere

What is a diagnostic inspection?

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.

What happens when my dashboard illuminates a warning light?

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.

View more symptomsView more symptoms

How much does it cost for my car diagnostic? car-diagnostic

Save up to 30% on your car diagnostic. See our table below to browse our honest, upfront prices.

Learn moreLearn more

Daniel, from London

Hey Fixter,

Daniel
Terry

Terry, Fixter in-house mechanic expert

checkedCollection and delivery — anywhere

starNew
COVID-19 Update - Sunday, 9 August 2020

We fix your car, while you stay safe

Contact-free collection
Contact-free collection
Our drivers maintain safe distances, we adhere to distance regulations and offer a totally contact-free service.

How much does car diagnostic cost?

How much does car diagnostic cost?

Honest, upfront quotes and savings up to 30%

A typical car diagnostic in the UK costs around £41.65 - £59.00. Depending on your car brand, model and engine, and whether you live in a big city or a small one, the price of a car diagnostic on your vehicle can be higher or lower. We have computed prices for some of the best-selling cars in the UK in order to give you an idea of how much the car diagnostic should cost.

Car make and modelDealers
average price
Fixter logoexclusive price
Instant savings

Mitsubishi Grandis

2 litres

£53.10 £43.2819%

Mazda 2 Sport

1.5 litres

£52.35 £42.8718%

Vauxhall Antara Exclusiv Cdti

2.2 litres

£51.31 £41.6519%

Jeep Cherokee

2.8 litres

£71.09 £59.0017%

Honda Accord Type S

2 litres

£51.12 £43.6915%

Mitsubishi Colt Cz2 Di

1.5 litres

£49.13 £42.4614%

Renault Captur

1.2 litres

£52.87 £44.5016%

Mitsubishi Delica Space Gear

2.8 litres

£64.68 £52.1219%

Peugeot 407

2 litres

£62.81 £53.4115%

Fiat 500l Beats Edition

1.6 litres

£50.89 £42.0517%

Peugeot 407

2 litres

£62.81 £53.4115%

Jeep Cherokee

2.8 litres

£71.09 £59.0017%

Mitsubishi Grandis

2 litres

£53.10 £43.2819%

Honda Accord Type S

2 litres

£51.12 £43.6915%

Mitsubishi Delica Space Gear

2.8 litres

£64.68 £52.1219%
Get your free quote and save up to 30%Get an instant quote

* The cost of your car diagnostic depends on your car make and model and may vary depending on your location.

Our trusted and certified garages

MILLENNIUM GARAGES

London, UK
stars-5
23 reviews
MILLENNIUM GARAGES is located in London, UK. We provide quality car services and repairs with our team of expert mechanics

HOLOCENE MOTOR GROUP

London, UK
stars-4.5
26 reviews
HOLOCENE MOTOR GROUP is located in London, UK. We provide quality car services and repairs with our team of expert mechanics

BLENHEIM TRANSPORT LTD

LONDON, UK
stars-4.5
14 reviews
We are located in LONDON, UK and handle your vehicle's MOT, Servicing and Repairs for all car makes and models.

PORSHEWORX ENGINEERING LTD

London, UK
stars-5
22 reviews
We are located in London, UK and handle your vehicle's MOT, Servicing and Repairs for all car makes and models.

CANNING CAR CARE

London, UK
stars-5
24 reviews
We are located in London, UK and handle your vehicle's MOT, Servicing and Repairs for all car makes and models.

DUNDALK MOTORS

London, UK
stars-5
28 reviews
DUNDALK MOTORS and their team of qualified mechanics at London, UK look after your cars MOT, Servicing and Repairs

Here’s what our customers have to say…

  • Michael Higginbottom
    from Brighouse
    starstarstarstarstar

    Fantastic service today. The car was collected and returned exactly to the times I wished and the extra job I requested had been carried out. The car had been cleaned inside and out also. Great work.

  • Ana S
    from London
    starstarstarstarstar

    Very happy with the service and will use again for sure! Highly recommend it. Pick up & drop off were simple & straightforward and so was communication with the Fixter team.

  • Laiy c
    from London
    starstarstarstarstar

    I got my MOT done with no issues. They text and email me to let me know when they will come to pick up and drop my car back from where i work.

  • Robbie
    from Liverpool
    starstarstarstarstar

    Excellent service from start to finish

  • Mr Jack Edwards
    from Huddersfield
    starstarstarstarstar

    fast, reliable and very convenient

  • M.le fay
    from London
    starstarstarstarstar

    Good reliable friendly service

Book your next car diagnostic in less than 5 minutes.

Book your next car diagnostic in less than 5 minutes.

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Try Fixter today

Try Fixter today

Your postcode
Your registration number
Call usor call us on 0330 808 9527
mechanic

Your car diagnostic is in safe hands with our top-rated mechanics

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.

Get an instant quote

Your car diagnostic is in safe hands with our top-rated mechanics

mechanics

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.

Get an instant quote

Want to learn more about car diagnostic?

Want to learn more about car diagnostic?

What is a diagnostic test on a car?

A special computerised scanner is plugged into your car to detect the faulty performance of your car's engine or other components. This is only possible because of the many processors, sensors and microchips built into our cars. The diagnostic tool reveals any faults and relays a code to the mechanic. From here, it's a much simpler process to understand your car's problem and rectify the problem.

How much is a diagnostic test on a car?

A diagnostic test will cost around £40 to £50 for most cars. Luxury vehicles and high-end sports cars can cost significantly more—somewhere in the region of £70. Fixter can save you up to 30% against Dealership rates, so be sure to get your free Fixter quote today.

How long does a diagnostic take for a car?

A full diagnostic check can take up to 1 hour. Most of our partners will carry out the test while you wait, or if you'd prefer to leave your car with them and collect at a point later in the day, then that's fine too.

What can a car diagnostic test tell you?

A car diagnostic test can reveal issues with your vehicle's engine, transmission, exhaust system, and brakes. It also provides information about ignition timing, which coils are firing, engine rpm levels, fuel injector performance, crankshaft and camshaft position, and air flow and coolant temperatures.

Should I pay for car diagnostic?

The diagnostic test takes time and specialist equipment to carry out the work and find the faults with your vehicle. If the fees seem excessive, then it's fine to ask why. The test should take no longer than an hour, so you should be able to determine if the rate a garage or dealership charges is reasonable or not.

How do car diagnostics work?

Plug the scanner or engine code reader into your vehicle, and the display will reveal a code, or list of codes, that show which components are showing a fault. The code won't necessarily dictate the exact problem, or how to fix it, but it does provide a good head start. The code should be checked against the scanner's manufacture's website for additional information and where to start troubleshooting. The rest of the diagnosis is down to your mechanic.

How do I know what's wrong with my car?

When a driver senses an issue with their vehicle—for example, it doesn't feel as it usually does when steering or braking, or it's making unusual noises or emitting odd smells—then a diagnosis is required before the problem becomes more serious.

The first simple step is to look for visible signs that something's wrong. If there are no obvious clues, the next step is to have it checked by a professional. In many cases, a mechanic or vehicle technician will utilise specialised equipment and software to determine the problem component.

What do warning lights in cars mean?

There are 5 colours of warning light—the 2 you're most likely to encounter are red and orange.

Red warning lights indicate a serious problem that requires immediate attention or could cause significant damage to your car. You should pull over as soon as it's safe to do so

An orange warning light is literally that—a warning—and should be checked out as soon as you have a suitable opportunity.

For our full account of what warning lights mean and how you should react to them, visit our warning lights blog page to find out how to respond to them and rectify the problem.

Can you drive with warning lights?

It depends. If the dashboard reveals a red warning light, then you should stop driving as soon as possible. A red warning is a severe fault and requires immediate attention. Amber, or any other colour, indicates that you should be okay to continue driving, but the fault should be checked out as soon as you get chance.

What do you do when your engine warning light comes on?

If the check engine light illuminates on your dashboard, examine the other gauges and warning lights for signs of low oil pressure or the engine overheating. If either of these is apparent, you should pull over as soon as possible and turn off the engine.

With a blinking check engine light, you may notice a loss of power or other performance problems. In this case, reduce engine speed and any demand on the engine. Again, stop driving as soon as it's safe to do so, and have the car properly diagnosed.

Car care you’ll love

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Expert mechanics

Expert mechanics

We personally select and vet only the best local garages, fully covered by a 12-month warranty on parts and labour

Collection to your door

Collection to your door

Our fully insured Fixter Heroes collect and deliver to your door, with flexible time slots that suit you

In-house expert advisors

In-house expert advisors

Our friendly team of specialists will support you every step of the way and take care of your car from start to finish