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Diagnostic Check in Harrow

Instantly compare diagnostic deals from garages near you & book online

4.7* on Trustpilot

*Based on Trustpilot: our average rating
4.7 out of 5 from 5540 reviews.

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Diagnostic Check

Instantly compare diagnostic deals from garages near you & book online

4.7* on Trustpilot

*Based on Trustpilot: out average rating
4.7 out of 5 from 5540 reviews.

happy man using his phone

14,381,002 happy drivers can’t be wrong.

“I’m always on the go, so booking my MOT on my phone was really useful.
I compared garages, picked the best one for me and even saved money, all whilst waiting for my morning coffee!”

4.7/5 based on over 5540 Trustpilot reviews*
* Based on Trustpilot: our average rating 4.7/5 from 5,540 reviews.
Grimsdyke Service Station Logo
Grimsdyke Service Station
Grimsdyke Service Station, 786 Kenton Lane, HARROW, HA3 6AG
372 Reviews
Family run garageEstablished in 1964

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Diagnostic Check FROM £80

Grimsdyke Service Station is a family run garage in Harrow Middlesex, providing a wide range of services. We are an independent garage so we rely on our reputation, which has allowed us to sucessfully build up a large loyal customer base in Harrow, Stanmore and the surrounding areas. Established in ...

Formula One Autocentre Harrow Logo
Formula One Autocentre Harrow
233-237 WATFORD ROAD, HARROW, HA1 3TU
55 Reviews

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Diagnostic Check FROM £60

Formula One 233-237 Watford Road, Harrow Now open on Sundays 10 - 4pm, taking bookings between 11 and 3pm. Established in 1974, Formula One Autocentres set out with a mission to deliver a completely new fast-fit experience to its customers. This would feature clean, modern premises, high-tech equ...

EUROTEC MOTORS LIMITED Logo
EUROTEC MOTORS LIMITED
UNIT 4 TUDOR ENTERPRISE PARK, TUDOR ROAD, HARROW, HA3 5JQ
2 Reviews

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Diagnostic Check FROM £60

At Eurotec Motors we are experts in automotive repairs including MoT Testing, Car Servicing, Brakes, Exhaust, Tyres, Diagnostic Testing and more.

J M Motors-Harrow Logo
J M Motors-Harrow
5 - 7 Locket Mews, Locket Road, Harrow, HA3 7LY
1 Reviews

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Diagnostic Check FROM £60

We are a professional and affordable car service and MOT centre. We pride ourselves on delivering a friendly, personal service and have a reputation for delivering quality servicing and customer care. We work to a customer charter, so you can have peace of mind when you book with us. We look forwa...

3D MOTORS LIMITED Logo
3D MOTORS LIMITED
r/o 106-110 Hindes Road, Harrow, Middx, HA1 1RP
1 Reviews
Exclusive discounts at a main dealer0% interest free payments availableManufacturer trained technicians

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Diagnostic Check FROM £60

3D MOTORS LIMITED

Pinner Auto Centre Logo
Pinner Auto Centre
1a Canterbury Road, North Harrow, Harrow, HA2 6AA
50 Reviews

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Diagnostic Check FROM £35

Pinner Auto Centre

What does a car diagnostic check do?

A diagnostic check is carried out on your vehicle by a mechanic, who will plug your vehicle into a specialised code reader. It can detect problems with your vehicle which may be difficult to spot manually.

The main components which are tested in a diagnostic check are the car’s:

  • electronic control units (ECUs) - these control various element of the car and its performance including engine running
  • emissions and exhaust sensors
  • braking system
  • electrical components such as central door locking
  • transmission if electronically controlled
  • ignition coils
  • throttle setting
  • fuel injectors
  • air flow and coolant

 

Why is a car diagnostic check important?

A diagnostic check is very important as it can detect a potential problem with your car, even before a breakdown. The computerised equipment scans your vehicle’s system to check for any faults, no matter how minor or major. A diagnostic test is a quick, easy and accurate way to discover any faults and will give you the chance to get them fixed before they turn into bigger and more expensive issues. When your car has a fault, this may show as a warning light on the dashboard. If the light goes out the system will store the fault code so the garage will find this when they do the diagnostic check.

What are the possible signs that your car needs a diagnostic check?

There are many different signs which will indicate that your vehicle needs a diagnostic check. Essentially, if you suspect that there is an issue with your car but don’t know what, you will probably want to book a diagnostic check to find out what the problem is. Here are some of the key signs:

  • Engine warning light - if the engine warning light appears on your dashboard, it’s important to take your vehicle to a garage as soon as possible as there is a wide variety of problems which the light may be flagging up.
  • Strange noises – any strange noises coming from your car need to be checked out before they turn into more serious problem. Some of these sounds may include; whining from the bonnet, abnormally loud exhaust, uneven engine noise, brake squealing or gear crunching.
  • Smoke - if you see smoke or steam coming from under the bonnet, your vehicle may be overheating.
  • Vibrating - if you notice any vibrating or pulling under your brake, the issue may be due to work brake discs or pads. However, it could also indicate a problem with your suspension or steering.

 

How long do car diagnostics take?

You can expect a diagnostic check on your car to take approximately 90 minutes. You may want to allow for more time though as the mechanic who will be carrying out the check might not be available to start right away.

How much does a car diagnostic check cost?

The price of a car diagnostic test can vary, depending on the garage that you visit. Each garage has a fixed price for diagnostic checks, ranging from £30 - £100.

Enter your vehicle registration number and post code into BookMyGarage (at the top of this page) and you can instantly compare diagnostic check pricing from all of the garages in your local area. As well as price, you can see the garages’ reviews, distance from your post code, extra services offered and availability. You don’t even have to register to get access to all of this information. When you have selected a suitable garage, you can choose a date, any optional extras (such as collection and delivery, loan car etc.) and book online.

What do you need from your garage?

We all have different needs, and choosing a garage is no different. For some of us, it’s the quality of the overall service which matters most; not just the work that’s done under the bonnet, but the human interaction that comes with it. BookMyGarage allows you to compare Harrow garages on everything from their waiting room refreshments or whether having your toddler in tow is going to be a problem, to how clearly the staff can explain the work your car requires.

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Diagnostic Check