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Diagnostic Check in Swansea

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 5539 reviews.

Don't know your vehicle registration?
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 5539 reviews.

happy man using his phone

14,374,484 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 5539 Trustpilot reviews*
* Based on Trustpilot: our average rating 4.7/5 from 5,539 reviews.
Keep Driving Auto Ltd Logo
Keep Driving Auto Ltd
Keep Driving Auto Ltd, Unit 7 St Lukes Court, Swansea, SA1 7ER
105 Reviews

Loan Car

Collect & Deliver

Customer Drop-off

Diagnostic Check FROM £35

Here at Keep Driving Auto we provide a first rate, friendly garage service. RAC Approved, Serving the Swansea area, located in Llansamlet within easy reach of both the city Centre and Swansea Enterprise Park.

Manselton MOT & Service Centre Logo
Manselton MOT & Service Centre
Cambrian Yard David St, Cwmbwrla, Swansea, SA5 8NX
109 Reviews

Loan Car

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Customer Drop-off

Diagnostic Check FROM £42

Manselton MOT & Service Centre is located in Cwmbwrla, Swansea. With our professional and knowledgeable staff, we are here to help you get your vehicle back on to the road. We offer MOT's servicing, body work, diagnostics, brakes, exhaust, clutches and more. We are happy to answer your questions and...

Bassetts Nissan Swansea Logo
Bassetts Nissan Swansea
Neath Road, Morriston, Swansea, SA6 8HF
267 Reviews
Wash&Vac FOC part of the Nissan promise

Loan Car

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Customer Drop-off

Diagnostic Check FROM £60

Bassetts, Nissan car servicing, MOTs and repairs in Swansea. Manufacturer knowledge you can trust. From vehicle diagnostics and health checks to air con servicing and general repairs, you have peace of mind that you have the best technicians and genuine parts. Bassetts prides itself on its reputatio...

Hutchings Hyundai Swansea Logo
Hutchings Hyundai Swansea
Swansea Enterprise Park, St. Davids Rd, Llansamlet, Swansea, SA6 8QL
65 Reviews
Free video vehicle health check report

Loan Car

Collect & Deliver

Customer Drop-off

Diagnostic Check FROM £115

At Hutchings Hyundai, we take great pride in delivering the highest quality aftersales and servicing. Our locations in Pontypridd, Bridgend and Swansea are each equipped with the very best: State of the art technology which is expertly operated Highly trained and dedicated staff Top end customer se...

NGS Swansea ltd Logo
NGS Swansea ltd
Unit 8 Cambrain Court, Ferryboat Close, Swansea, SA6 8PZ
61 Reviews

Loan Car

Collect & Deliver

Customer Drop-off

Diagnostic Check FROM £60

NGS Swansea ltd Based in Swansea llansamlet Enterprise Park not far From the fendrod Lake, We are a vehicle Service Center,Carrying out Vehicle Servicing,Maintenance, Tyres, Wheel Alignment, Aircon Suspension, Brakes, Diagnostics Electrics, Vat registered. we have Dealership trained technicians on s...

Celtic Subaru & Mitsubishi Logo
Celtic Subaru & Mitsubishi
Victoria Road, Gorseinon, Swansea, SA4 3AB
3 Reviews

Loan Car

Collect & Deliver

Customer Drop-off

Diagnostic Check FROM £75

With many years of New and Used car retailing experience, representing Mitsubishi since 2010 and more recently Subaru we pride ourselves on giving Main Dealer Service but at local garage prices. As a local family owned business we believe that buying or servicing a car should be an enjoyable and per...

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 Swansea. 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.

How to be a better driver

Whether you’re driving in Swansea or further afield, think about road user etiquette. Showing respect for other road users makes driving more pleasant for you and safer for everyone. For example, if you have to make a last minute change of lane, make your request to change clear to the driver who will need to let you in - and signal your thanks if they do. Be ready to abandon the change of lane if they won’t play ball - your safety (and that of other drivers and pedestrians) is more important than getting to your destination in the shortest time possible. When the position is reversed and a driver asks your permission to change lanes, allow them to as long as it is safe. If you get frustrated, avoid using your horn - it won’t improve matters and might make them considerably worse.

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Diagnostic Check