Mercedes ECU A2661538979 / 5WK90958 / HW: A0024463140 *Plug & Play* (Free Programming BY POST!)
Removed from running vehicle & dry stored – Good working order
Price includes bench programming – (Data transfer from your unit to this donor unit) to do this you will have to send us your old unit, then this unit will plug straight in and work with your existing keys with no further programming necessary. (Our address to post your unit is below)
Price includes UK delivery and VAT, a UK VAT receipt is supplied with your order.
Any questions please email or call us anytime
Important! – Please read
If you are purchasing an ECU marked as ‘Plug & Play – Free programming’ you MUST send your old (Faulty) ECU to us to transfer immobiliser data / software, First locate the part number on your ECU & ensure it matches the part numbers listed on our listing, if the part numbers differ contact us for advice on compatibility, Then click ‘Buy it now’ and pay via Paypal. Pack your ECU preferably in bubble wrap in either a small box or Jiffy bag and enclose a brief covering letter stating your ebay user name and any other information we may need. Do not send any other items such as keys etc unless specifically asked to do so.
Our address to send your old ECU to can be found in the ‘Business seller details’ (It is against ebay policy to put our contact details in a listing)
Terms & Conditions
Please ensure before ordering an ECU that the fault with your car is an ECU fault and your problem has not been misdiagnosed, 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 will have 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.
Advice on ECU Diagnosis & replacement
1 – Scan the vehicle with a diagnostic scanner & record fault codes – rectify any faults recorded here first & check the wiring for faults.
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.
3 – 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.
4 – 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.
JC Cars / ECU connection
UK VAT no. 899712163