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Review summary

Based on reviews, created with AI

Reviewers overwhelmingly had a great experience with this company. Customers consistently praise the staff for their helpfulness, professionalism, and excellent communication, often going above and beyond expectations. Many consumers highlight the quick turnaround times and efficient service, noting that they were kept well-informed throughout the repair process. People frequently mention significant cost savings compared to dealership prices, with many units being repaired for a fraction of the cost of a new replacement. However, some customers also noted issues with the product and service. A few people reported that their repaired units did not fix the original fault, or that the company was unable to repair the unit at all. Some reviewers were not happy with delays in service, with units being held for extended periods, and a few mentioned concerns regarding the state of the returned units.

What people talk about most

Service

Users describe positive interactions with service, highlighting the quick and efficient repair process, with... See more

Product

People report ambiguous experiences with product. Many customers praise the successful repairs of various car... See more

Staff

Reviewers highlight positive aspects of staff. Many customers praise the professionalism, helpfulness, and... See more

Price

Customers had ambiguous experiences with price. Some reviewers found the prices very reasonable, even cheap,... See more

Response time

Customers consistently note positive experiences with response times. Many reviewers praise the quick... See more

Based on these reviews

Rated 5 out of 5 stars

Used ECUTesting along one other repairer for years. ECU testing have biggest coverage. Online order form is effortless and easy to fill. Postage labels emailed to be printed. Automated text or email... See more

Rated 5 out of 5 stars

Had an issue with Landrover auto gearbox, gear selector. A well known Landrover problem which should have been a recall but never was, and now LR main dealers will gladly fleece you of up to a £1000... See more

Company replied

Rated 5 out of 5 stars

I live all the way in South America/Guyana where technicians quoted me almost 3k US for a replacement ABS pump & workmanship for my 2017 Audi A4, found info on google suggesting ECUtesting could repa... See more

Company replied

Rated 5 out of 5 stars

The Gear Shifter Module on my C-Class Mercedes failed recently. A new unit was over £600 plus fitting. I found Ecutesting online. They were very helpful and knowledgeable. My failed module w... See more

Company replied


Company details

  1. Vehicles & Transportation

Information provided by various external sources

UK supplier of automotive ECU's, throttle bodies, air mass meters & ABS modules as well as listing technical advise & common faults


Contact info

4.5

Excellent

TrustScore 4.5 out of 5

868 reviews

5-star
4-star
3-star
2-star
1-star

Replied to 50% of negative reviews

Typically replies within 1 month

How this company uses Trustpilot

See how their reviews and ratings are sourced, scored, and moderated.

Companies on Trustpilot aren't allowed to offer incentives or pay to hide reviews. Reviews are the opinions of individual users and not of Trustpilot. Read more

Rated 5 out of 5 stars

Great service at a reasonable price

I must say that I was a little apprehensive sending off my airbag ÉCU but the service I have received was absolutely amazing.
ECUTesting arranged collection which comically took 6 minutes! The DHL man was down the road when the job came available, which was very amusing when he turned up at the door as it was the 1st April!
The unit was fixed the next day and sent back straight away and when fitted back it worked perfectly.
I therefore felt compelled to write a trust pilot review and recommend them on my motorhome Facebook group too.
Absolutely brilliant from my experience.

April 1, 2026
Unprompted review
Rated 5 out of 5 stars

Absolutely fantastic company with great…

Absolutely fantastic company with great staff. Took my BMW dash cluster there. Quick and efficient at the reception. Spoke to both Karen and Emma and they were both totally professional and informative. I would not hesitate to take any other items there that needed testing or repairing. I really cannot say how impressed I was with them. Completely satisfied and happy with my experience there.

March 17, 2026
Unprompted review
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Reply from Ecutesting

Hi Freddy the Frog, Thank you so much for your fantastic review, i am pleased that you are happy with our services and i have also passed your feedback onto Emma. Regards Karen

Rated 5 out of 5 stars

excelant company to work with

hi i have spoken to this company after a breif conversation with karen who gave 5 star services i would not hesitate to send my ecu and other items to them for repair also like to mention gary who talked me through some stuff a genuine and humble person

March 13, 2026
Unprompted review
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Reply from Ecutesting

Hi Saggair, Thank you so much for your kind review. I have also passed your feedback to Gary. Regards Karen

Rated 5 out of 5 stars

My ECU needed repair under warranty…

My ECU needed repair under warranty with these guys and the work was done in their usual quick and efficient way. It was picked up and returned all no charge. Great service highly recommended.

March 2, 2026
Unprompted review
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Reply from Ecutesting

Hi Paul, Thank you for your 5 Star review. Regards Karen

Rated 1 out of 5 stars

Would not bother

Despite giving a lot of information to this company about my ecu problem before sending the unit, ECU Testing still accepted my unit and then told me it was unrepairable, doing more research since I have found out from other sources that the unit in question is always unrepairable and has to be rebuilt 100% of the time. I spent quite a lot of money to send it to them from outside the UK, they then charged me almost 3 times as much in postage to send it back to me.
Complete waste of time and money

February 23, 2026
Unprompted review
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Reply from Ecutesting

Hi Barry, Thank you for your feedback, I have managed to locate your customer record and can see that due to the nature of the fault the unit has tested as irreparable and could not be fixed, we did not charge a testing fee for any testing carried out and therefore only the DHL Express return shipping was charged. Regards Karen

Rated 5 out of 5 stars

Another fault remedied

Great customer service with an outstanding ability to fix faults and provide a lifetime guarantee

February 10, 2026
Unprompted review
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Reply from Ecutesting

Hi Martin, Thank you for your fantastic 5 star review. Regards Karen

Rated 5 out of 5 stars

5 stars

Efficient service .
Customer Service is excellent.
Would recommend .

February 6, 2026
Unprompted review
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Reply from Ecutesting

Hi L.B, Thank you for your 5 Star review i am pleased to read that you are happy with our services and that you would recommend us to others. Regards Karen

Rated 1 out of 5 stars

Lies

Lies. A male opperative said he was familliar with our 2002 land cruiser ECM but whoever took over from him when the unit was taken to them became useless. I could not talk to any higher up person with more forthcoming data. It is like the secret service as usual with big companies like them. Absolutely abysmal customer care.
They are posting me the unit back but their internet chat does not know why it was a waste of fuel and time to travel 20 miles to take the unit to them because the operative said we can sort it out but then could not but could not confirm why.

January 28, 2026
Unprompted review
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Reply from Ecutesting

Hi Mick, Thank you for your feedback i am sorry to read that you are unhappy with our services, although we can test most units your particular one is not compatible with any of our current test rigs. As we haven't been able to fully test your unit we did return your unit completely free of charge. An questions please don't hesitate to get in touch. Regards Karen

Rated 5 out of 5 stars

Amazing customer Sevice

I made initial contact after buying a MK2 Ford Focus and it breaking down after a week.
After doing a bit of research found the instrument cluster is a common fault on the MK2 Focus. Unfortunately, it was over the Christmas period and the dealership I bought it from were not helpful at all, basically saying they wouldn't take the car back or even look at it.
I was put on to ECU testing from the Ford dealership in Chesterfield.
I called and spoke to Grant. He was simply amazing. I am autistic and was having a bit of a meltdown at the time. He was so patient and explained everything I needed to do, clear guidance and gave me prices, just generally so reassuring.
I also spoke with Joe the same day also great customer service.
I spoke to 2 other people to arrange the collection and everyone just lovely.
I got the cluster out and dropped it too them, I had a phone call the next day saying it had been rebuilt.

January 23, 2026
Unprompted review
Rated 1 out of 5 stars

Not very reliable

Not very reliable. Pump failed after 12 months and they would not honour the warranty as they had already given me a refund to change my negative feedback to good feedback so most of the feedback they have is fake

January 21, 2026
Unprompted review
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Reply from Ecutesting

Hi Andrew, I have tried to locate a job for you in our database however this was unsuccessful, this could be due to the vague information you have provided within your review or we do not have a customer record for you in our database. Please contact us with your reference number so that i can investigate your concerns further as we do take customer feedback seriously. Regards Karen

Rated 5 out of 5 stars

Every customers dream company!

Sent my Instrument Cluster to get soldering repair done, the guys received it on the Monday at 1120am and I received it back 24 hours later fully repaired. Unbelievable service would 10/10 recommend to anyone needing a repair. Fantastic company great customer service and amazing turn around. If I could give more stars I would!

January 5, 2026
Unprompted review
Ecutesting logo

Reply from Ecutesting

Hi Sam, Thank you for your amazing feedback. I will be sure to pass your comments onto the rest of the team. Regards Karen

Rated 1 out of 5 stars

Would I use ECU testing again NO DEFINITELY NOT

My background
I am a retired Electro-Mechanical Engineer [H N D] with a degree. I now repair laptops to keep my brain happy, so I am more than happy around electronics and its circuitry, why I am telling you will become clear later on.
I have an Audi A3 1.9Tdi which upon investigation (not only by me but by a vehicle diagnostics company) we both came up the same answer “this is an immobiliser fault” so the instrument cluster needs to be sent away to be tested and repaired.
So I did some internet research and came across a YouTube video ECU Testing who have 56 videos.
Upon viewing some of their videos especially relating to my immobiliser problem I contacted them and sent off my instrument cluster for it to be returned after I had paid the £208.50 plus VAT @ 20% £41.70 £250.20 (the VAT element I will come to later)
On the invoice it states Tested and repaired.
I was overjoyed I would now finally be able to get my car back on the road, plugged in the instrument cluster connected the battery (undertook a quick OBD scan with my VAG com) and tried to start the car, - - - - result NOTHING.
It still had the immobiliser fault.
So I straight away contacted ECU testing only to be told “your cluster needs to be cloned to another replacement cluster” so I purchased another cluster and sent them BOTH back to be cloned.
ECU testing contacted me and told me that “the ECU is locked”
I was somewhat mystified by this explanation especially when I had viewed a number of their YouTube videos and the website ecutesting.com and seen a considerable amount of their testing equipment and the 30,000 square foot facility.
As an example if I have a broken laptop in front of me on the bench the fault is there in front of me NOT anywhere else, I use all my skill, knowledge and experience utilising my various pieces of equipment, i.e. microscope, various DVM’s, oscilloscope, slave monitor and various testing rigs all of which bring me to a satisfactory conclusion fault identified and rectified.
Throughout this whole saga ECU testing have steadfastly REFUSED to supply me with any kind of report or diagnosis, even though they are aware of my comprehensive electronics knowledge, in an email response to my request “Our test report, however, is the document you have already received and is the full and only format of report we provide.
>
This document is written here word for word
>
Audi TT instrument cluster re-fit instructions
Upon refitting this cluster, the vehicle’s immobiliser may prevent starting the car.
To prevent this from happening please scan the engine ECU and instrument cluster and delete all fault codes present.
Common fault codes stored include:
17978/P1570 – engine start blocked by immobiliser
18058/P1650 – powertrain data bus - missing message from instrument cluster
01314 – engine control module – no communications

Once this done: cycle the ignition and the vehicle will start.
>
In a word FAILED
They suggested I purchase a “donor cluster” and they would clone it for me.
Long story short that FAILED their response “the ECU is locked”
With regards to the VAT element addressed earlier.
On their ECU testing Invoice they have charged me VAT @ 20% £41.70 yet NOWHERE on the invoice does it show a VAT number.
A VAT-registered company is legally required to show its VAT registration number on all the VAT invoices it issues. This is a mandatory requirement from HM Revenue & Customs (HMRC) for ensuring proper tax compliance and allowing customers to reclaim input tax where applicable.
Found on the website but NOT on the invoice is the VAT number
Goods and Services Terms and Conditions
2. Information about us and how to contact us
Our registered VAT number is 893176683
>
Would I use ECU testing again NO DEFINITELY NOT

November 21, 2025
Unprompted review
Ecutesting logo

Reply from Ecutesting

Hi To F, I have tried to locate a customer record for you in our database however we cannot find one under the details you have provided. I would also like to clarify that we are a VAT registered business and our VAT number is displayed on every invoice. Thanks Karen

Rated 5 out of 5 stars

Fantastic service!

Fantastic service!

DHL collected my jammed Discovery gear selector on Monday 22nd December. It was delivered and fixed on the 23rd and returned to me before 11am on Wednesday 24th December!!!

Great communication and competitive pricing.

Definitely worth a 5 STAR review

December 24, 2025
Unprompted review
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Reply from Ecutesting

Hi John, Thank you so much for your fantastic feedback. Regards Karen

Rated 5 out of 5 stars

Trustworthy company.

Sent in an ABS module for repair but after testing it was found not to be at fault. My payment for repair was returned minus an inspection fee and postage. Very professional and quick turn around.

December 31, 2024
Unprompted review
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Reply from Ecutesting

Hi Ian, Thank you for your 5 Star review, we appreciate your custom. Regards Karen

Rated 5 out of 5 stars

ABS pump repair

ABS pump repair, fast and efficient, I recommend

October 24, 2025
Unprompted review
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Reply from Ecutesting

Hi Robert, Thank you for your 5 Star review it is much appreciated. Regards Karen

Rated 5 out of 5 stars

Amazing service!

Amazing service, such a slick operation - brilliant communication - really impressed!

November 25, 2025
Unprompted review
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Reply from Ecutesting

Hi Mr R, Thank you for your 5 star feedback. Regards Karen

Rated 1 out of 5 stars

Very poor communication and wrong info on initial contact

After a garage diagnosed a serious fault with the ECU on my van I contacted this company and spoke to a man who, after I gave him all the details including the part number of my ECU, stated they would be able to test my unit and had an 80% success rate with repairing them. Consequently I delivered the unit to them and a couple of days later received a call stating they did not have the equipment to test this type of ECU and that I should collect it from them.
When I collected the ECU I explained what I had initially been told only to be told by the lady who served me that the man I spoke to initially should not have said what he said and that she would 'listen to the telephone call I made to them'.
Not a lot of use really and it set me back over a week while I found another ECU company who were able to sort out the problems I had within 3 working days.

November 10, 2025
Unprompted review
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Reply from Ecutesting

Hi Kevin, we have tried to contact you previously to discuss this further however this was unsuccessful. Regards Karen

Rated 5 out of 5 stars

Sent an ABS module in for repair

Sent an ABS module in for repair. It was delivered the next business day and we were updated the entire time, repair was done within 24 hours and was returned to us the following business day. Exceptional service and professionalism. Definitely will use them again

November 17, 2025
Unprompted review
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Reply from Ecutesting

Hi Jlm, Thank you so much for your fantastic feedback. Regards Karen

Rated 5 out of 5 stars

Brilliant comunication

Brilliant comunication. Fast and efficient service. Very impressive service. I would recomend this company for ECU issues.

October 6, 2025
Unprompted review
Ecutesting logo

Reply from Ecutesting

Hi Brian, Thank you for your positive review. Regards Karen

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