ECUconnection

Xavier Augereau ★★★★★ 2 weeks ago
I was getting the random warning lights on the instrument cluster of my ford focus, and the car going into reduced acceleration … More mode. The internet diagnosed the problem as cracking solder, and gave a wildly varying range of price for the repair. In the end I went for ECUconnection as they were the cheapest, but most importantly because they put the very helpful video on youtube on how to remove the instrument cluster. You put helpful content for free, you get my custom. Sounds fair. A few working days after posting the cluster, I got it back, and all the warning lights cleared immediately, bar the engine warning, that disappeared after the second restart. I’m very happy with the service.
Marco Santoro ★★★★★ a month ago
I had a great experience, 100% recommend. They have been very helpful, promptly responded to every question and updated me … More at every stage. I sent my faulty ECU to them which unfortunately wasn't fixable. They promptly contacted me with a solution. Got my new ECU back after a short time perfectly working and for a reasonable price.
Chris Coote ★★★★★ 2 months ago
Could not have gone smoother!! Sent my cluster in for repair, got a message next day to say it had been received and would … More be 3 to 5 fay's turn around! Got another message to say it was repaired and being dispatched. Arrived next day put it back in car , good as new. Cannot recommend highly enough.
cmanz1983 ★★★★★ 3 months ago
I initially spoke to a really helpful lady who advised me of the process. I sent my instrument cluster off for my Ford Focus … More MK2 on Monday and it was returned on Wednesday. I was really impressed with the speed and professionalism of the service. I would certainly recommend to anyone else and can’t thank you for enough for the speedy works carried out. Thank you!
Henry Smith ★★★★★ 4 months ago
TLDR; - I've saved many hundreds of pounds by trusting this service.
In full; I needed a BCM clone onto donor because … More my previous one was corroded, but partially functional. I chose to trust this service based on previous reviews so I hope this is enough to convince another person to put their expensive electric item into their care.
I posted my BCM to them and they notified me that it had arrived with them (Phew!). It stayed with them for about 4 business days before they notified me that it was then out for delivery the following day.
Plugged the BCM back into the car and I am happy to report that this has indeed remedied my electrical issues and saved me a lot of money!
I'd use the company again absolutely!
John Reed ★★★★★ 7 months ago
would highly recommend this company,Repaired my instrument cluster.Communication was excellent,Service was A1.Turnaround … More within 2 days.Cannot praise them enough.Forget the rest,use these that are the best.Thankyou.
Richard Snow ★★★★★ 7 months ago
What an excellent team to deal with! Fair price for a replacement ECU, especially as immediately connected it was fully … More working! Great service, dispatch and delivery times, and price! Hope not having to use your services again but if needed you're first choice!
Keir Ritchie ★★★★★ 7 months ago
Amazing service.Was abit skeptical at first sending my unit to them but as soon as they started work they called, explained … More what they found and sent me pictures , asked about issues id noticed and told me what they were going to do to try to solve the issues . Sufficed to say they fixed everything . Absolutely chuffed.Great job guys!
Chris Craddock ★★★★★ 10 months ago
I have a 2003 Mini Cooper S, originally a UK car but now registered in Switzerland. The BCM gave up and I could not switch … More off the left headlight. The local BMW dealer had no idea what to do and refused to work on it. I sent the original BCM plus one I bought on eBay to ECUconnection for cloning. Good communication, rapid turn around and....it works! Many thanks and a strong recommendation from me :-).
Daniel Green ★★★★★ 10 months ago
I took my FRM3 module to ECU connection to be repaired as I was having faults with certain lights on my E91. I was working … More away for the week so I dropped it off on Friday to be collected the following Friday. Justin called me to say that my module didn't appear to have the usual errors and suggested I get me a donor module as mine was likely damaged. As I was away he sorted this for me and transferred the data over. Unfortunately this didn't fix the problem and it was something deeper, so they did more work to find the fault, at no extra cost! I popped down to just collect the module but Justin dropped what he was doing and ensured my car was sorted and everything was as it should be before I left. Top service and I would 100% recommend.
David Wright ★★★★★ 11 months ago
Great service and recommend this company . Reprogrammed my Megane BCM and donor BCM so now have 2 working units ( one now … More a spare ) after losing data due to flat battery corrupting files . Saved a lot of money not taking to dealer and saved my car car from scrap yard . Communication excellent.
D MacDonald ★★★★★ a year ago
I actually can't believe how effective the repair to my Ford Focus MK2 cluster has been, I was trying to delay my review … More to see if the faults would return but everything seems hunky dory. I have a friend that scrapped their car because they didn't know you could get the issue fixed so easily. Another couple of years of life in my old girl now though. Thank you 👍
Geoff Grove ★★★★★ a year ago
Very very pleased so far with the service despite two replacement ECU not working in my van. I was kept informed from the … More outset and my replacement ECU's were sent quickly (next day).Justin was very helpful - we tried two replacement ECU's and now they are sending a third one to help me out of a tight spot.I'd requested a refund at one point and this happened in full instantly. So I highly recommend JC Cars and ECU Connections. They were also cheaper than some other ECU clone places I found on the internet. They couldn't be more helpful or efficient.Geoff Grove
J C ★★★★★ a year ago
My Daughter's 09 Focus showed all the classic faults of a bad instrument cluster. 'Engine Malfunction' warning, … More 'Speed Limited' warning and the needles dropping to zero. Sent the cluster off and it was turned around in 1 day and back within 3 (Thurs-Sat). Works perfectly and has cleared all the issues. Thank you, Thank you !Absolutely brilliant service, would give you 10 out of 5 if I could !
Richard_Pics ★★★★★ 2 years ago
Quick friendly efficient service on my faulty Ford cluster. Completed in 3 hours and all works perfectly. Would use again … More (hopefully not soon!)(Photo attached was the issue on my Kuga - if anyone else has this problem come up on thier dash and the vehicle not start, it may be this!)

VW Golf MK3 2.0 GTI ECU Siemens 5WP4204 | 037906025H | Plug & Play Immo off ‘Free running’

Name: VW Golf MK3 2.0 GTI ECU Siemens 5WP4204 | 037906025H | *Plug &amp; Play* Immo off 'Free running'
SKU: ECU-43
Availability: OutOfStock

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SKU: ECU-43 Categories: ECU SHOP, Engine Control Unit, Siemens, Volkswagen Tag: Immobiliser Off

VW Golf MK3 2.0 GTI ECU Siemens 5WP4204 | 037906025H | *Plug & Play* Immo off ‘Free running’

Removed from running vehicle and dry stored - Good working order

This ECU has been re-programmed to being 'Immo off' (Immobilizer removed / free running) and will work when it is fitted & plugged in to your car with no further programming of keys etc necessary - it will start & run as normal even if there is no transponder chip fitted inside the key (Plug & play). If you would prefer you immobilizer data programmed to this ecu or for any reason it will not work you can send it back with your original unit for bench programming (Data transfer) at no extra cost!
We also offer a separate 'Immobilizer delete service' for this type of ECU - For example if you have already sourced a replacement unit for your vehicle & are looking for a way to program it to your vehicle then we have the solution! For more information about the services we offer on this type of ECU please click on the 'You may also like' link above.
Also available is a vast array of other programming & refurbishing services such as Immobilizer PIN code reading, Tech2 resetting, ECU cloning, Immobilizer deletes and much more on all makes of vehicles and all kinds of electronic units such as Airbag ECUs, Instrument clusters, Body control modules, PAS units etc etc! For more details about our programming & repair services click on the 'Services' link at the top of the page & use the filters on the left of the page to find what we can do for you. If you cannot find the service you need then contact us to see if we have the solution to your cars electronic problem.

Important! – Please read! - It is essential before ordering an item that the part number of the item you are ordering matches the part number EXACTLY of the component on your car that you need to replace. Also ensure that the fault with your car is an ECU fault and your problem has not been misdiagnosed. We strongly recommend having your car diagnosed by a competent Auto-electrician or specialist garage before ordering. If we supply a faulty ECU we are happy to provide a replacement or fully refund you if a replacement is unavailable, however if your existing problem persists with your car then the fault has most probably been misdiagnosed – if you request a refund on this basis then a 20% restocking fee will be deducted from your refund & return postage will be at purchasers expense.

Weight	2 kg
Custom Bundle	No
Type	Engine Control Unit
Manufacturer Part Number	5WP4204
Reference OE/OEM Number	037906025H
Brand	Siemens
Car Make	Volkswagen

Scan the vehicle with a diagnostic scanner

1 . Scan the vehicle with a diagnostic scanner & record fault codes – rectify any faults recorded here first & check the wiring for faults

If your ECU has ‘No communication’

2 – If your ECU has ‘No communication’ with a diagnostic scanner it is essential that you check relevant fuses and consult a wiring diagram for your vehicle and verify the power supply & test the wiring to your ECU – particularly test power supply relays (Engine control relay). – ECU’s returned due to misdiagnosis are subject to a 20% restocking charge

If you are not a qualified auto electrician

If you are not a qualified / experienced auto electrician or garage technician and you are unsure if the problem with your car is the ECU then please consult one first before ordering – there is a 20% restocking charge for returns due to misdiagnosis

If your fault is a cylinder misfire

If your fault is a cylinder misfire please check spark plugs / leads / coil / injectors and wiring faults / headgasket faults etc before ordering, if these have been checked or replaced then it is important to check inlet manifolds for leaks, engine compression & perform a vacuum gauge test to check for valve problems.

VW Golf MK3 2.0 GTI ECU Siemens 5WP4204 | 037906025H | *Plug & Play* Immo off ‘Free running’

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VW Golf MK3 2.0 GTI ECU Siemens 5WP4204 | 037906025H | Plug & Play Immo off ‘Free running’