Absolutely the best in Swansea. Knowledge, honest, quick and very experienced…thank you Swansea Diagnostics you are the man.
Dealer Level
Diagnostics
Using our experience, expertise, and the latest up to date computer diagnostic equipment, we will identify the fault with your vehicle.
Book An AppointmentSpecialist
Fault Finding
We use only the latest diagnostic software and the most advanced up to the minute tooling and equipment to ensure that we can always diagnose fully what is wrong with your vehicle.
Book an AppointmentMobile
Mechanical Work
We use only the latest diagnostic software and the most advanced up to the minute tooling and equipment to ensure that we can always diagnose fully what is wrong with your vehicle.
Book an AppointmentMost Popular Services

Diagnostics
At the heart of every automobile is the engine. The engine is what creates the power and makes the car move. Just like the human heart, the engine requires proper maintenance and care. As your automobile is driven and the engine experiences normal wear and tear, problems will inevitably arise that require repair. Whether you come in for your check engine light, maintenance or repairs, you can count on us to properly diagnose your engine and offer services like:- Standard tune-up
- Filter replacement
- Fuel system cleaning and more
Pricing
Engine Complete 6-cylinder | $229.99 |
Engine Complete 8-cylinder | $249.99 |
Engine Complete 4-cylinder | $199.99 |
Engine Cradle | $100.99 |
Engine Short Block | $119.99 |
Engine Wire Harness | $33.99 |
Diagnostics
At the heart of every automobile is the engine. The engine is what creates the power and makes the car move. Just like the human heart, the engine requires proper maintenance and care. As your automobile is driven and the engine experiences normal wear and tear, problems will inevitably arise that require repair. Whether you come in for your check engine light, maintenance or repairs, you can count on us to properly diagnose your engine and offer services like:- Standard tune-up
- Filter replacement
- Fuel system cleaning and more
Pricing
Engine Complete 6-cylinder | $229.99 |
Engine Complete 8-cylinder | $249.99 |
Engine Complete 4-cylinder | $199.99 |
Engine Cradle | $100.99 |
Engine Short Block | $119.99 |
Engine Wire Harness | $33.99 |
Diagnostics
At the heart of every automobile is the engine. The engine is what creates the power and makes the car move. Just like the human heart, the engine requires proper maintenance and care. As your automobile is driven and the engine experiences normal wear and tear, problems will inevitably arise that require repair. Whether you come in for your check engine light, maintenance or repairs, you can count on us to properly diagnose your engine and offer services like:- Standard tune-up
- Filter replacement
- Fuel system cleaning and more
Pricing
Engine Complete 6-cylinder | $229.99 |
Engine Complete 8-cylinder | $249.99 |
Engine Complete 4-cylinder | $199.99 |
Engine Cradle | $100.99 |
Engine Short Block | $119.99 |
Engine Wire Harness | $33.99 |
Diagnostics
At the heart of every automobile is the engine. The engine is what creates the power and makes the car move. Just like the human heart, the engine requires proper maintenance and care. As your automobile is driven and the engine experiences normal wear and tear, problems will inevitably arise that require repair. Whether you come in for your check engine light, maintenance or repairs, you can count on us to properly diagnose your engine and offer services like:- Standard tune-up
- Filter replacement
- Fuel system cleaning and more
Pricing
Engine Complete 6-cylinder | $229.99 |
Engine Complete 8-cylinder | $249.99 |
Engine Complete 4-cylinder | $199.99 |
Engine Cradle | $100.99 |
Engine Short Block | $119.99 |
Engine Wire Harness | $33.99 |
Diagnostics
At the heart of every automobile is the engine. The engine is what creates the power and makes the car move. Just like the human heart, the engine requires proper maintenance and care. As your automobile is driven and the engine experiences normal wear and tear, problems will inevitably arise that require repair. Whether you come in for your check engine light, maintenance or repairs, you can count on us to properly diagnose your engine and offer services like:- Standard tune-up
- Filter replacement
- Fuel system cleaning and more
Pricing
Engine Complete 6-cylinder | $229.99 |
Engine Complete 8-cylinder | $249.99 |
Engine Complete 4-cylinder | $199.99 |
Engine Cradle | $100.99 |
Engine Short Block | $119.99 |
Engine Wire Harness | $33.99 |
Diagnostics
At the heart of every automobile is the engine. The engine is what creates the power and makes the car move. Just like the human heart, the engine requires proper maintenance and care. As your automobile is driven and the engine experiences normal wear and tear, problems will inevitably arise that require repair. Whether you come in for your check engine light, maintenance or repairs, you can count on us to properly diagnose your engine and offer services like:- Standard tune-up
- Filter replacement
- Fuel system cleaning and more
Pricing
Engine Complete 6-cylinder | $229.99 |
Engine Complete 8-cylinder | $249.99 |
Engine Complete 4-cylinder | $199.99 |
Engine Cradle | $100.99 |
Engine Short Block | $119.99 |
Engine Wire Harness | $33.99 |
Vehicles these days can suffer from all sorts faults and problems, if your vehicle’s engine management light comes on, your vehicle breaks down or develops a fault, contact Swansea Diagnostics.
Our vehicle technicians have fully equipped vehicles that can carry out most servicing and mechanical mobile car repairs at your home or place of work.
Your vehicle requires servicing at certain intervals set out and recommended by your vehicle’s manufacturer, this ensures the longevity and reliability of your car. Book your mobile car servicing with us to save time and money.
Our experienced service technicians arrive at your chosen destination entirely equipped to carry out all of your brake service needs including brake pad replacement, brake disc rotor replacement and brake repairs.
Whether your car has wheel bearing whine, grinding, seized or too much free-play. We do Front Wheel Drive, Rear Wheel Drive, AWD or 4WD - Swansea Diagnostics is here to help.
If you’re looking for a mechanic for starter motor repair or starter motor replacement but don’t want the added inconvenience and flexibility needed to use a fixed place mechanic workshop, then you need us.
Get a new car battery installed at home or at work with Swansea Diagnostics. Save time with a fast and high quality car battery service delivered direct to your car door.
Vehicle Diagnostic Experts

Below are some of the many auto repair services we offer:
- Diagnostics
- Fault Finding
- Part Coding
- Car batteries replaced at your home
- Injectors
- Fuel Pumps
- Servicing
- Alternator
- Battery Replacement
- Brakes
- Driveshafts & CV joints
- Clutch
- Cooling System
- Repairs
- Engine & Components
- Engine Management System
- Exhaust Repair
- Fuel System & Fuel Injection
- Gearbox & Diff/Driveline
- Head Gasket Repair
- Ignition System
- Starter Motor
- Steering
- Suspension Repair
- Timing Belt & Timing Kit
- Van Speed Limiters removed
- Wheel Bearing
Our Services
Swansea Diagnostics offer all vehicle diagnostic services, including Mobile Electrical Services, Car Diagnostic, Engine light, Airbag, Abs, handbrake, light diagnose, Car Key Programming, battery drain test, Car electrics, Dpf regeneration, Engine non start, Immobiliser problems, Battery drainage problem, Mileage correction, Engine management light, Engine & Vehicle diagnostics, Fault and ABS & Traction Control, Limp mode fault diagnose, Central Locking, Body Controllers, ECU decoding, injector coding and many other.
Our Mission
We cover all Swansea (SA) postcodes and rest of South Wales. Our team have undertaken numerous car electrics installations, fitting devices from car alarms to audio systems and auto diagnostic computers. No job is too big or too small for our team.
If you would like more information about the range of our services we offer please do not hesitate to contact us. Our dedicated and trained team members are here to answer any questions you may have.
Why Swansea Diagnostics?
We offer call out services 24 hours a day and 7 days a week. Prices start from as little as £30.00 for full diagnostics.
Welcome to Swansea Diagnostics, Swansea’s number one auto electrician specialists. We are experts in all auto electrical works and provide a reliable and efficient auto electrician mobile service.
SWANSEA DIAGNOSTICS is a Swansea based Mobile Car/Vehicle Diagnostic Company serving all areas in Swansea and South Wales. We are totally dedicated to our customers, ensuring excellent service, complete customer satisfaction and peace of mind. Mobile garage services are also available.
All the work we carry out is undertaken by our dedicated team of highly trained, experienced auto electricians, all of whom have been working in the auto diagnostics industry for many years. So, whether you require full engine diagnostics, auto electrical repairs or the installation of a car air conditioning system, our auto electricians team can help.
We’ve been providing auto diagnostic services for a number of years and during that time, we’ve become industry leaders. This is thanks to our exceptional standards of service, as well as our commitment to providing the highest quality auto diagnostics at the best prices.
We Repair All Makes
of Experience
Repaired
Customers

Called Swansea Diagnostics about a number of issues I was having with my car, he was very friendly and arranged to come and inspect my car very quickly.
He arrived as agreed and was able to fix all of my issues on the spot 🙂
And for a very reasonable price too…….
I would recommend the service to anyone (and I have!!)


Swansea Diagnostics is by far the best experience I’ve ever had with a mechanic. He is a professional and friendly guy who has a lot of passion for helping people with their vehicles. He took the time to explain things to me and make me feel at ease about the whole experience.