Car Diagnostics Near You

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An experienced car diagnostician will get to the bottom of both electrical and mechanical issues. We work with over 10,611 garages nationwide so whether you need Diagnostics in London, Engine Tuning in Birmingham or Emissions work in Liverpool we can help.

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Top garages for Diagnostics (9,552 found)
Pool Street Garage Limited
Newcastle-under-Lyme
Car Diagnostics Near You
Frequently asked questions
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What is Car Diagnostics Testing?

Modern cars are complex machines and the cause of a problem is not always immediately obvious. Diagnostics testing 'interrogates' the car's monitoring system to help reveal underlying issues.
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What can Car Diagnostics Testing tell you?

Diagnostics testing can reveal issues with your car's engine, electrical system, transmission, braking, exhaust system and more.
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How does Car Diagnostics Testing work?

When performing a diagnostics test, a garage will plug your car into sophisticated equipment that will 'interrogate' your car, searching for fault codes which will reveal, if not the exact issue, then a clue as to the cause.
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How long does a Car Diagnostics Test take?

Simply reading an error code will only take a minute or so. However some issues require a 'live' test, in other words, replicating the fault. This can take time, particularly if the fault relies on factors such as engine temperature.
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How much does Diagnostics Testing cost?

Many garages will offer diagnostics testing for free. Others will charge from £30 upwards.

Average rating for Diagnostics bookings

5.00

1 reviews

What is a car diagnostic test?

A diagnostic test is a service performed by a mechanic to discover problems in a car. There are a diverse range of issues which can be discovered during a diagnostic and it is a vital aspect of car repair.

A diagnostic test requires a piece of equipment which plugs directly into a car and connects with the on-board measurement tools. For example, there are processors, sensors and microchips inside a car engine and a connected on-board computer in most modern cars. A diagnostic kit will connect to all of the sensors when it is plugged into a car and analyse the health of key components.

Once the machinery has done its job, a detailed report will be generated which will provide information which will tell the mechanic what is wrong with the car.

Why do I need a diagnostic?

As a service, a diagnostic is vital for finding faults quickly. It is a service you will have to pay for as it takes time and skill to carry out, however, it is significantly quicker than manually checking every single part of a car which is how they used to be carried out.

A diagnostic test will be able to find problems which may be totally undetectable to a mechanic, furthermore, a diagnostic could tell a mechanic that a problem is developing before it turns into a serious issue.

Having a diagnostic carried out can save you a huge amount of money in the long term as the longer a problem goes without attention, the worse it will get.

Think about how important it is for doctors to use machines to measure the health of your body. They’ll use an X-Ray to look at bone integrity, an ECG machine to look at your heart and a CAT Scan machine to see the brain.

A diagnostic machine performs the same function for a car.

Why do I have to pay for a diagnostic?

The cost of a diagnostic is required as it takes time and mechanics charge for labour. The cost will depend on a number of factors including the type of car and garage but often garages waive the fee if you have the repair carried out by them. Dealership garages may carry a higher charge than an independent garage, however, the only way to find out how much a diagnostic will cost for you, is by using WhoCanFixMyCar!

How long will a diagnostic take?

A test could be completed in a few minutes.

How much will a diagnostic cost?

The average cost of a diagnostic is shown at the top of this page, however, to get free and personal quotes for a diagnostic on your car, simply click get quotes.

Get a diagnostic with Who Can Fix My Car

Finding a mechanic you can trust to do a good job and charge a fair price, is not always easy which is why we have simplified the process. We work with a network of over 10,000 mechanics and garages across the UK so we can find competitive Gearbox repair deals for you.

To find the best Gearbox Replacement or Repair service available in your region;

  1. Enter your car registration number
  2. Give us a few details about your car and your requirements
  3. We’ll send you a great selection of quotes from mechanics and garages in your area

You can then compare the quotes and read reviews from previous customers to find the best Gearbox deal in your area, before booking the Gearbox Replacement or Repair online.

Gary from Complete Mechanics talks through a typical diagnostics test