Is your vehicle not running as smoothly as usual, or has an engine light appeared on your dashboard? If so, you likely need to book a car engine diagnostics test to get to the root of the issue.
At Lawfix Automotive, our car garage uses the latest diagnostic technology to quickly and effectively pinpoint the root cause of the issues you are experiencing. Whether you’re experiencing problems with a petrol or diesel car, our experienced mechanics can easily identify your problem before it turns into a more expensive issue down the road.
Don’t ignore warning lights or unusual engine performance -early checks save money and keep you safe. Use our quick online booking system or call our friendly Cardiff team today to arrange your engine garage diagnostics appointment.
We offer transparent pricing, a free collection and drop-off service and also honest and genuine communication throughout the process.
EXCELLENT Based on 39 reviews Posted on Heather Jones2025-09-24Trustindex verifies that the original source of the review is Google. Excellent service and happy with jobPosted on Vishal Rao Dhaipule2025-09-17Trustindex verifies that the original source of the review is Google. Joey is excellent in what is does. also, does the job quickly and hassle free. He is the right man for the right job. 👌☺️Posted on Sharon Davies2025-09-11Trustindex verifies that the original source of the review is Google. ⭐️⭐️⭐️⭐️⭐️ I can’t recommend Law-Fix Automotive Ltd enough! Joe managed to book my car in straight away and carried out a really thorough inspection before purchase. He even sent me a detailed video of the underside (something I’d never normally get to see), talking me through everything clearly and in a way I could understand. He also gave it an extensive test drive and ran full diagnostics to check for any hidden issues. The communication was outstanding, the service above and beyond, and the pricing very fair. An honest, professional garage I’d recommend to absolutely everyone!Posted on Tomos Gwyn2025-08-30Trustindex verifies that the original source of the review is Google. Excellent service from start to finish from Joe - would highly recommend! 👊Posted on James Edmond2025-08-21Trustindex verifies that the original source of the review is Google. Joe is such a great guy. 100% trust him to keep my campervan running smoothly so I never have to stress about any van maintenance ever again I just leave it to him 😂. I always recommend him to all my friends and family 10/10Posted on Michael Jones2025-08-12Trustindex verifies that the original source of the review is Google. I recently used the garage for a clutch replacement. Joe is a courteous, friendly and very knowledgeable mechanic. He explained the problem to me thoroughly, setting-out details of the work to be done, together with a cost estimate (which was a really accurate prediction). The work was carried quickly and efficiently. A major, positive service provided in the Cardiff area is that a customer’s car is picked up from their home and returned when work on the car is completed. What a bonus that is!! Thank you, Joe, for a very a very hassle-free experience.Posted on Joe Cameron2025-07-22Trustindex verifies that the original source of the review is Google. Joe's a top bloke! Sorted my car issues quickly and was kept me updated throughout all of the process! Highly recommend!Posted on Adam Oakley2025-07-17Trustindex verifies that the original source of the review is Google. Joe's a top guy, wouldn't use anyone else 👍🏼Posted on M D2025-06-25Trustindex verifies that the original source of the review is Google. Called Joe to look at a coolant leak on my Smart car, Joe got me booked in straight away and instantly found the leak. Problem was fixed within a few hours and was sent two videos detailing the issue. Very good price and excellent service, will be coming back.Posted on Colin Parker2025-05-26Trustindex verifies that the original source of the review is Google. Absolutely 💯% brilliant service,kept me informed via video,would definitely recommend Law-Fix AutomotiveVerified by TrustindexTrustindex verified badge is the Universal Symbol of Trust. Only the greatest companies can get the verified badge who has a review score above 4.5, based on customer reviews over the past 12 months. Read more
There are some telltale signs that you may need engine diagnostics for your vehicle. Some typical examples include:
If your vehicle is experiencing any of these symptoms, don’t leave it too late before it evolves into a significant issue. Our expert team can quickly diagnose the issue and resolve it effectively for you.
Many of our customers question whether paying for engine diagnostics offers value for money. We understand it can be frustrating paying for diagnostics; however, the cost of inaction will likely be far worse down the line if you don’t take action.
Taking early actions provides several meaningful benefits, including:
We offer some of the best car engine diagnostic servcies in Cardiff.
We keep you regularly updated and send progress photos.
No waiting forever. We tell you the date you can expect your car back and we stick to it.
We can collect straight from your door, saving you the stress of sorting a lift back home!
The average cost of engine diagnostics typically ranges from £50 to £100, depending on the make and model of your vehicle. We will always confirm pricing with you before any work is undertaken to make sure you’re happy.
Usually between 30-60 minutes. If further checks or tests are required, we will let you know and let you decide before any further work is conducted.
Our diagnostic tools and software integrate with your car’s ECU (Engine Control Unit) so that we can accurately diagnose the issue causing your problems. There’s no guesswork involved; we can accurately determine the root cause of your issue in most cases.
Of course. No work is undertaken at our garage without receiving the customer’s consent beforehand.
Most of the time, yes. However, if certain parts are required or more advanced testing is required, it may take longer than a day. We will keep you updated throughout the process so you have full clarity.
Yes, of course. We can accurately diagnose issues for petrol and diesel vehicles.
Yes, our diagnostic tools cover both engine and electrical systems.