Engine Diagnostic Service
Expert engine diagnostic services in Rainham. Advanced diagnostics for all makes & models. Check engine light, power loss, knocking, smoke. Free brake checking.
Engine Problems We Diagnose
Check Engine Light
We read fault codes and identify exactly why your check engine light is illuminated.
Knocking Noises
We diagnose internal engine noises caused by timing issues, worn bearings, or fuel problems.
Excessive Smoke
We identify the source of blue, white, or black smoke from your exhaust.
Power Loss
We diagnose the cause of reduced performance, hesitation, or poor acceleration.
Poor Fuel Economy
We identify issues causing increased fuel consumption and recommend solutions.
Oil & Coolant Leaks
We locate the source of leaks and assess any potential engine damage.
Rough Idle
We diagnose uneven engine running and stalling at idle.
Starting Issues
We identify the cause of slow cranking, no start, or intermittent starting problems.

Best Engine Diagnostic Service in London
12+ Years Experience
700+ Engines Repaired
OEM Parts Usage
Transparent Pricing
When your check engine light comes on or you notice unusual noises, smoke, or poor performance, you need accurate answers fast. At London Car Solution, we provide professional engine diagnostic services in Rainham to identify the root cause of any engine issue.
Using advanced diagnostic equipment and decades of mechanical experience, we pinpoint problems that other garages miss. Whether it’s a sensor fault, fuel system issue, ignition problem, or internal mechanical damage, we’ll give you a clear, honest diagnosis.
With over 12 years of experience and 700+ engines diagnosed, we ensure you understand exactly what’s wrong with your vehicle before any work begins.
We serve customers across Rainham, Romford, Dagenham, Barking, and all over East London & Essex.
All our diagnostics come with a no-obligation report and fixed-price repairs.
Why Choose London Car Solution for Engine Replacement?
Advanced Computer Diagnostics
We use the latest diagnostic tools to read and interpret fault codes from your vehicle's ECU.
Comprehensive Mechanical Inspection
Our technicians perform a thorough physical inspection of belts, hoses, fluids, and mechanical components.
No-Obligation Report
We provide a detailed written report of our findings with recommended next steps.
Clear, Honest Advice
We explain the problem in plain English and give you honest advice on the best solution.
Searching for Engine Diagnostics Near Me?
London Car Solution Ltd. is the best engine diagnostic shop in Rainham with fast, accurate fault finding.
Specialized Engine Diagnostics for Premium Car Brands
Here is the list of car brands we specialise in for engine diagnostics in Rainham, London. View the details below and book your diagnostic service via Phone or Email.

Audi Engine Diagnostic
Advanced computer diagnostics for Audi TFSI & TDI engines in Rainham, London.

BMW Engine Diagnostics
Advanced computer diagnostics for BMW N-Series & B-Series engines in Rainham, London.

Ford Engine Diagnostics
Advanced computer diagnostics for Ford Ecoboost 1.0, 1.5 & 2.0L engines in Rainham, London.

Range Rover Engine Diagnostics
Advanced computer diagnostics for Range Rover V6 & V8 engines in Rainham, London.

Porsche Engine Diagnostics
Advanced computer diagnostics for Porsche Boxer & V6 engines in Rainham, London.

Volkswagen Engine Diagnostics
Advanced computer diagnostics for Volkswagen TSI & TDI engines in Rainham, London.
Hear from Our Happy Customers
EXCELLENT Based on 134 reviews Posted on Google Tony Muwonge30 July 2026Trustindex verifies that the original source of the review is Google. The service and expertise provided to me after the failure of the engine in my BMW 335D xDrive were amazing. They were true to their word with the advice on the repairs, which reflects their professionalism. The engine rebuild was great. The engine is good as new and drives better than before the failure. For that, I would like to thank the team who worked on the car. Please keep up the good work.Posted on Google Robs Reviews27 April 2026Trustindex verifies that the original source of the review is Google. With over 12 million views on my reviews and privileged to be in Googles top 10% of reviewers globally my opinions are always honest and thorough and always unbiased. I had a ceased engine on my 320d and was faced with fix or scrap and the idea of losing £1000s oddly did not appeal 🤔 So rang around a load of places that managed to diagnose my car over the phone and wanted around £4000 for a rebuild. Came across London Car Solutions and started a chat via WhatsApp and booked the car in. The following day they phoned and explained the problems along with a clear video (broken oil pump). They listed the parts i required, clear easy pricing so no shock at the end. Car was back on the road inside a week and was running lovely. After the running in period i returned the car for them to do an oil change and check everything was grand. Now 3 years has passed and the work they carried out still stands. I couldn't be happier with not only the high standard of workmanship but the customer service especially from 'Jeff' and his team. I'm in need of more engine work (mystery oil leak suspected rocket cover) and have been given clear pricing of the works to be carried out. If you have a car with engine issues I'm certain that these guys can put it right ASAP.Posted on Google Toby Hammans1 March 2026Trustindex verifies that the original source of the review is Google. Fantastic from start to finish. These guys saved my N52 which had low compression on two cylinders. It was quickly stripped and diagnosed as piston ring and valve stem seal failure. They also uncovered some previous bodged repairs to pipes and a hole in the radiator, which I also got them to replace while they had the engine out, along with a new belt and VANOS solenoids. They undertook a complete rebuild including timing chain replacement, keeping me up to date with photos of what needed to be done and answering all of my questions quickly. When I came to collect the engine sounded so smooth I could hardly believe it was the same car, needless to say I was absolutely delighted. I had done a lot of research about where to get this job done and I am so glad I chose LCS. I will be taking the car back within 600 miles for an oil change and will update this review as necessary, but after putting some miles on the new engine already I feel very confident in the work that has been done. Massive thanks to the team! Update @ 600 miles - everything is still running perfectly, and I just took my car back to LCS for the recommended oil and filter change. This was completed quickly while I waited and I'm still very happy to recommend them. Many thanks again to the team!Posted on Google Lynette Da vies-Jones19 February 2026Trustindex verifies that the original source of the review is Google. Very helpful guysPosted on Google Finn Kieran6 February 2026Trustindex verifies that the original source of the review is Google. Amazing service, quick and professional. Kept Me in the loop with loads of pictures of work done. Fair price, even went as far to give the car a small clean after the work and then even gave the engine bay a clean after the work. Can’t recommend enough, if you need knowledgeable and fair engine works these are your guys.Posted on Google Samuel Kelly1 February 2026Trustindex verifies that the original source of the review is Google. Best service in this area highly recommend it to everyone!Posted on Google Julian Turner27 January 2026Trustindex verifies that the original source of the review is Google. Best experience with them. Great customer service and highly recommend themPosted on Google Ron A15 January 2026Trustindex verifies that the original source of the review is Google. Fantastic definitely recommend. I was in a difficult situation with my 2014 fiesta timing belt - had the typical issues leading to engine failure. After getting quotes from local garages i was close to scrapping the car, but I stumbled across an ebay advert for this garage. It was over 300 miles away from my home so I was a little concerned but the customer service over ebay and whatsapp was good and so were reviews. Price was half of what i was quoted in cornwall. So happy I took the plunge and got it towed up. Within a couple of days I had photo updates which was really helpful and they gave advice around the clutch which was also nearly gone. They managed to fit a reconditioned engine in 2 days and held the car for me for a week to collect. On collection the garage is a short walk from the nearest station. Really friendly on arrival and even cleaned the car for me to drive away. Have now driven it for 650 miles and had it serviced at a ford garage with no issues. Can't recommend enough thanks a lot, saved my car!Posted on Google Blake Foster6 January 2026Trustindex verifies that the original source of the review is Google. Very professional and efficient . Customer service extremely good. Highly satisfied with them. My car runs like new. Thank you🙏Posted on Google Khan Details12 December 2025Trustindex verifies that the original source of the review is Google. Harry did a fantastic job on my BMW timing chain! Would definitely recommend and will be visiting again for all my engine works in the future. Definitely the best experience I've had at any garage, they know their stuff!
Common Questions About Our Services
How much does an engine diagnostic cost?
We offer competitive diagnostic pricing. Contact us for a current price, we’ll give you a clear quote before any work starts.
How long does an engine diagnostic take?
Most computer diagnostics take 30 to 60 minutes. More complex mechanical inspections or intermittent faults may take longer. We’ll keep you informed throughout.
Do I get a report after the diagnostic?
Yes, we provide a detailed written report explaining our findings with recommended next steps. We never perform repairs without your approval.
Can you diagnose a problem without a warning light?
Absolutely. We diagnose mechanical issues such as unusual noises, smoke, power loss, and leaks using our experience and diagnostic equipment.
Got Any Question?
