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What is car diagnostics?

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 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.

  • How long will a diagnostic take?

    A diagnostic test can usual be completed in just a matter of minutes.

  • How much will a diagnostic cost?

    The cost of diagnostics can vary depending on the make and model of the vehicle. To get an up to date quote simply enter your vehicle registration at the top of the page.