ECUconnection

Brunel Motors ★★★★★ a week ago
Excellent service from ECU connection. They took on what was thought to be a simple ECU repair for us. As it turns out it … More was far from simple due to the Air bag Ecu from the Alfa being a very rare unit/part number. They carried out the required research into the unit, repaired it and though this was a lot more work from them the repair was carried out at the original quoted price. We at Brunel Motors woulkd defineely use them again.
Great job Guys, thank you.
Roger Bergquist ★★★★★ a week ago
I required a replacement ecu for a Suzuki Swift which these guys could sort out for very reasonable money. First attempt … More failed to reprogram the key fob codes but all good on return. Cost me a few extra days but proved this job can be carried out by them successfully and cheaper than a new part too. I would fully recommend these guys and give them a go.
Paul Woodhead ★★★★★ 3 weeks ago
Great service, repaired my focus st instrument cluster via a postal service. Returned within a few days, car fully working … More again. Thank you
Hayley Woodfield ★★★★★ 2 months ago
Great service from the first phone call ..sent my ECU they received it Monday and by Wednesday I had it back fully cloned … More and works perfectly - great job can’t fault it such an easy end to end service 👍
Chris Pilkington ★★★★★ 3 months ago
Sent my ford kuga instrument panel for repair as it had the usual solder connection problem, it was fixed promptly and the … More turn around was less than a week, car was dead and now it’s alive and the missus is happy she has her wheels back, well done ECUconnection great job and highly recommended.
Mollie Hughes ★★★★★ 4 months ago
Great service from ECUconnection.
Straight forward process, and unit was returned very promptly after original had been received. … More
Would definitely use again.
Andy Preus ★★★★★ 4 months ago
Great service! Justin and the team always there for questions and fantastic knowledge!
Now my go to shop for any issues. … More
I had my Mercedes A200 air bag ECU cloned after the original ECU was giving out random faults.
I needed the VIN to be transferred to the donor
ECU after coding, dealer level coding.
ECUs were returned with a full report.
After reinstalling the donor ECU fault codes were cleared and I didn’t have a problem with the VIN number fault.
Mercedes dealer wanted double the cost if not more with coding for the replacement ECU and were not particularly helpful with any of my questions.
Thanks again team!
Geoff Ovy ★★★★★ 4 months ago
I would highly recommend this company, They are absolutely First Class.
The work they did on the ECU was excellent.
I also … More had another issue with my vehicle which they offered me some further options.
The technicians and all other staff were brilliant.
I have fixed the other issue now and with the ECU it is running the best it has done in a very long time.
So my wife's 2003 little clio with over 155000 miles on the clock, i think will go on for another few years yet.
Thank you once again ECU Connection for your work and guidance.
I have already recommended you to a couple of friends and will continue to do so.
Regards,
Geoff.
Richard James ★★★★★ 6 months ago
Great service sent my ford focus cluster off on Saturday got it back Wednesday thanks to the video took me 10 minutes to … More take it out and put back in again. Ford garage told me it was not repairable cost me only £77 and the car is perfect highly recommend this firm, they emailed me every step of the way, thanks for great service
Joseph Schmidt ★★★★★ 6 months ago
Thanks to the team for the quick and successful ECU replacement including cloning. Very quick answers and they guided me … More all the process to make it smooth. Car has no more issues and is driving A1!
Roston Park Motors ★★★★★ 7 months ago
Excellent service, great communication and very quick returns, thanks all for your help with the CIM unit on our Astra, will … More definitely use again, keep up the good work!
Dave J ★★★★★ 7 months ago
Very happy with the refurbishment of my instrument cluster. Great communication and reasonable prices, all done within the … More timescale stated. Seeing the process on YouTube was really helpful and persuaded me to send the cluster in for refurbishment, rather than attempt a repair myself. It's great to have my car back to normal.
Steve ★★★★★ 7 months ago
Excellent service, sent them my faulty body control module for cloning. Quick turnaround excellent communication throughout … More the process, and car is now working properly. Highly recommend.
Daz Coleman ★★★★★ 8 months ago
I had a non start issue with my car, after doing plenty of in depth diagnostics I concluded that the engine ecu had a major … More issue, I went on line, and found ECUconnection put in my ecu details and they had a replacement available for next day delivery, which in all fairness it came a day later, but that was my fault due to the order cut off time. Anyway, the ecu was very well priced, very well packaged and it has immo off which means it will work without having to code it to the car, I connected it up and immediately had the car running.
Excellent service, would certainly use again in an instant.
Thankyou very much
Tony Fish ★★★★★ 9 months ago
Brilliant service from ECU connection. Dry solder joints were giving my car (focus mk2) constant error messages like "System … More failure, Transmission malfuntion" and sometimes non start. Quick tap on dashboard and restarting the car worked for short time but got worse. Tapping the dash did help diagnose the problem...Paid for service, removed my IC and sent it to this company. Updates given from the moment the instrument cluster was received, called when IC was repaired and I received a final email with tracking for safe return. IC refitted and car has been working for a few weeks, problem solved! Highly recommend this company. Great customer service. 5* repair service

Immo Off Unit

Plug & Play

VW Audi Seat Skoda ECU 03E906023Q | 5WP40853 | SIMOS9.1 | Plug+Play Immo off

Name: VW Audi Seat Skoda ECU 03E906023Q | 5WP40853 | SIMOS9.1 | Plug+Play Immo off
SKU: ECU-40852
Availability: InStock

£95.00 +VAT

2 in stock

SKU: ECU-40852 Categories: Volkswagen, Audi, Ebay Offers, ECU SHOP, Engine Control Unit, Seat, Siemens, Skoda

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 restocking fee will be deducted from your refund & return postage will be at purchasers expense.

Weight	2 kg
Dimensions	10 × 8 × 4 cm
Manufacturer Part Number	03E906023Q
Reference OE/OEM Number	5WP40853
Brand	Continental, Siemens
Other Part Number	SIMOS9.1

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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.