CLONING
Control unit cloning: your data on a replacement unit.
If an engine or transmission control unit can no longer be repaired, we transfer the data from your original unit to a suitable replacement. The vehicle then recognises the new unit like the old one.
When cloning makes sense
- Original control unit can’t be repaired any more, e.g. after water damage
- You have a used control unit that needs to match your vehicle
- A new part is expensive or no longer available
- Software, coding and immobiliser data should be kept
- Engine or transmission control unit, focus on Mercedes-Benz
How cloning works
We read the data from your original control unit – software, coding and immobiliser data – and transfer it to an identical replacement unit. For this we need both units: your old one and the replacement. If you don’t have one yet, we help you find one.
We only clone with proof that the vehicle is yours (registration document). Whether your unit can be cloned depends on its type and condition – we check this in advance.
Focus on Mercedes-Benz. AEZ is an independent master workshop; brand names are used for description only. We tell you whether a repair is possible after testing.
How the repair works.
- 1
Get in touch
Vehicle, VIN and what happened – via WhatsApp, phone or form.
- 2
Drop off or send in
Hand it in at Bottrop or, after a quick chat, send it by DHL. How shipping works
- 3
Test, price, repair
You get the findings and price before we repair. Then the unit goes back to you.
Frequently asked questions
Does the cloned unit need to be programmed at the dealer?
Usually not. The replacement unit then has the data of your original unit and is recognised by the vehicle like the old one. We tell you in advance if anything needs adapting in your case.
What if my old unit can no longer be read?
Even with badly damaged units, the data can often still be read directly from the memory chip. Whether that works for your unit we see during testing.
How much does the repair cost?
That depends on the unit and the fault. After testing we tell you the price – we only repair with your approval.
Can I send the control unit in?
Yes. After a quick chat, by DHL to AEZ, Werkstraße 4, 46240 Bottrop, Germany. Packing tips and the shipping note to fill in are on the “Sending in a control unit” page.
Do you only work on Mercedes-Benz?
Our focus is Mercedes-Benz. For other makes, just ask with the vehicle and part number – we’ll tell you honestly whether we can help.