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Diagnostic Check in Swansea

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Diagnostic Check

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Swansea Diagnostic Checks: Prices, Reviews & Local Insights

£62.00

Average price for a Diagnostic Checks in Swansea

4.91

average rating based on customer feedback.

1,339

customer reviews for garages in Swansea

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*some mobile technicians will contact you prior to your appointment to take payment in advance.

Top Garages for Diagnostic Check in Swansea

Find the perfect garage for your vehicle with detailed information, reviews, and real-time availability.

Tailor your results by entering your reg and postcode

Then sort by location, availability, ratings, and price to find your ideal garage in Swansea.

Don't know your vehicle registration?
Diagnostic Check
AutoSure Swansea Logo
AutoSure Swansea

Physical Garage

Burman Street, Burman Lane, Swansea, SA1 6BW

Silver Tier Garage

About Us

Expert Car Repairs & Servicing As a small family ran business, at AutoSure Swansea we specialise in high-quality car repairs, servicing, and maintenance to keep your vehicle running smoothly. Our experienced technicians provide pre MOT check, full MOT (done at a third party partner test centre), diagnostics, brakes and clutch repairs, engine servicing, and more. Trust AutoSure Swansea for professional automotive care that keeps you safely on the road.

Diagnostic Check£69

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4.99 (105 reviews)

Reviews Summary

AI Generated

Customers consistently praise Autosure Swansea for honest, transparent pricing and excellent communication, with many highlighting the team's friendly, professional approach and willingness to explain issues clearly without pressure. The garage earns strong recommendations for quick turnarounds on MOTs, servicing and brake work, with several reviewers noting competitive prices and helpful extras like complimentary tyre checks or screenwash top-ups. One reviewer mentioned a slight hiccup with the central booking service regarding service dates, though this was resolved quickly by the garage.

Keep Driving Auto Ltd Logo
Keep Driving Auto Ltd

Physical Garage

Keep Driving Auto Ltd, Unit 7 St Lukes Court, Swansea, SA1 7ER

About Us

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.

Diagnostic Check£45

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4.9 (165 reviews)

Reviews Summary

AI Generated

Customers consistently praise Keep Driving Auto for their efficient, professional service, with many highlighting quick turnaround times (often under an hour), friendly and informative staff, and excellent communication throughout the MOT and servicing process. The immaculate waiting area with complimentary refreshments and transparent, competitive pricing without hidden extras are frequently mentioned as standout features. One reviewer noted that communication could be clearer after an MOT failure, and another mentioned that one mechanic's manner was slightly brusque, though these points were raised only occasionally.

Manselton MOT & Service Centre Logo

Cambrian Yard David St, Cwmbwrla, Swansea, SA5 8NX

About Us

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 give you solutions at affordable prices.

Diagnostic Check£54

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4.86 (132 reviews)

Reviews Summary

AI Generated

Customers consistently praise the garage's friendly, helpful team and efficient service, with many highlighting punctual appointments, clear communication throughout repairs, and a welcoming atmosphere. The staff are frequently commended for being approachable and offering sound advice both in person and over the phone. No significant weaknesses emerge from these reviews, reflecting the garage's strong reputation for reliability and customer care.

Bassetts Nissan Swansea Logo

Neath Road, Morriston, Swansea, SA6 8HF

About Us

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 reputation as a franchise dealership which always carries out work to the highest standard. Book your Nissan service, repair and/or MOT today and get the best in customer service and quality of work. Book a service and MOT at the same time for even more savings. There is no payment to be made on BookMyGarage, you will simply pay after the work is done. The

Diagnostic Check£60

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4.67 (338 reviews)

Reviews Summary

AI Generated

Customers consistently praise the garage's excellent communication throughout the service process, with many highlighting the helpful video health checks, regular text and app updates, and friendly, professional staff. The competitive pricing through BookMyGarage is frequently mentioned as exceptional value, particularly for main dealer service, and several reviewers appreciate added extras such as complimentary car washes and breakdown cover. One customer noted that the final price exceeded the advertised amount, though the vast majority report a seamless, hassle-free experience with efficient same-day turnarounds and high-quality workmanship.

GORS GARAGE SERVICES LIMITED Logo

Swansea Rd, Swansea, SA4 4AS

Gold Tier Garage

About Us

⭐️Come find out why so many people recommend Gors Garage Services! ⭐️Straight up honest advise matched with reasonable prices Your local experts, we provide a deal experience at less cost. Customer satisfaction matters ! Book with us today, we are looking forward to ensure your vehicle is firing on all cylinders! OPENING HOURS: MONDAY - FRIDAY 7AM - 5:00PM

Diagnostic Check£90

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4.97 (62 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its trustworthiness, fair pricing and friendly, professional service, with many stating they wouldn't use anywhere else and several travelling from further afield specifically for the reliable work. The booking process is straightforward, and communication throughout is excellent, with prompt updates and efficient turnaround times for MOTs and servicing. Staff are repeatedly described as helpful, honest and courteous, creating a welcoming atmosphere that has earned strong loyalty and numerous recommendations from satisfied customers.

C&G Auto Repairs Logo
C&G Auto Repairs

Physical Garage

Unit F1, SA1 Business Park, Langdon Road, Port Tennant, Swansea, SA1 8DB

About Us

Welcome to C&G Auto Repairs, thank you for considering us. friendly and reliable team who work hard to maintain our reputation as one of Swansea's most trustworthy vehicle repair companies. For many years we have been helping the people of Swansea with their vehicle repair needs and during this time we have developed an unrivalled reputation for our honest, hard-working work ethic. We specialise in a wide range of vehicle repair services, including brakes, servicing, vehicle diagnostics, wheel alignment / tracking, tyres and much more.

Diagnostic Check£60

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5 (27 reviews)

Reviews Summary

AI Generated

Customers consistently praise this garage for its trustworthy, honest approach and excellent communication, with many highlighting the team's professionalism, clear explanations of work needed, and ability to accommodate urgent bookings. The service is repeatedly described as efficient and great value, with several reviewers expressing relief at finding a reliable garage they can return to after disappointing experiences elsewhere. The overwhelmingly positive feedback reflects a welcoming atmosphere, knowledgeable staff, and thorough workmanship across MOTs, servicing and repairs.

JL AUTO Logo
JL AUTO

Physical Garage

unit 1, Gors Avenue, Swansea, SA1 6RQ

About Us

JL Autos Swansea is a trusted, local independent garage based in Swansea, specialising in high-quality car servicing, repairs, and maintenance for a wide range of vehicles. With a team that includes experienced technicians (including former VW specialists), they provide reliable, honest, and professional auto services — from routine servicing and MOT preparation to complex diagnostics and repairs. Customers in the local community often recommend them for their straightforward approach and solid workmanship, particularly for Volkswagen Group cars and everyday vehicles alike. Whether you're looking for a dependable place for your annual servi

Diagnostic Check£55

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5 (1 reviews)

Foundry Autos Logo
Foundry Autos

Physical Garage

Unit 1 Gwydr Place, Swansea, SA4 6TW

About Us

Foundry Autos is a specialist automotive workshop based in South Wales, serving the Swansea area and surrounding regions. This independent garage focuses on high-quality car repair, maintenance, and custom work. They provide a full range of services, including Routine vehicle servicing and MOT preparation Professional welding and fabrication Full vehicle restoration projects Rally car setup and performance tuning advice for both stage and road use General mechanical repairs and diagnostics They handle everything from everyday modern vehicles to classic and performance cars, combining traditional craftsmanship with expert knowledge to delive

Diagnostic Check£60

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5 (11 reviews)

Aspinall Motors Logo
Aspinall Motors

Physical Garage

Gorseinon Road, Penllergaer, Swansea, SA4 9GE

About Us

Aspinall Motors Ltd is a well-established automotive business located in Gorseinon, Swansea. Offering a full range of vehicle services including used car sales, MOT testing, and vehicle repairs. Founded in September 2018, the company has quickly built a reputation for delivering high-quality service with a personal touch. A wide selection of rigorously inspected used vehicles, from budget-friendly options to premium models. Expert vehicle maintenance repair, MOT, timing belt replacements, wet belt changes, diagnostics, and general servicing. Friendly, knowledgeable staff who provide transparent advice and exceptional customer care.

Diagnostic Check£50

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5 (38 reviews)

Pontardawe MOT Centre Logo
Pontardawe MOT Centre

Physical Garage

7 Alloy Ct, Pontardawe, Swansea, SA8 4HR

About Us

We specialise in MOT testing for cars alongside a full range of mechanical services including servicing, repairs, clutches, brakes, welding, diagnostics, and general maintenance. We deliver honest, reliable, and efficient work in modern facilities, with a focus on keeping your vehicle safe and road-legal. Conveniently located at Unit 7, Alloy Court, Pontardawe Industrial Estate, SA8 4HR, we also offer free local collection and delivery of your vehicle to make life easier. Whether you need a routine MOT, a pre-sale inspection, or expert mechanical work, Pontardawe MOT Centre is here to help you drive with confidence.

Diagnostic Check£50

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5 (6 reviews)

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.