This ECU is supplied with two options. The first being cloned " Plug & Play ready no further programming required " in this case after purchase send your original ECU so we can carry out the cloning process and return within 24 hours.
The second option is supplied unlocked and ready for personalizing and coding into your vehicle. This way a dedicated diagnostic tool and required knowledge will be required.
Contact us if you are unsure about what you require or if you need another service. We offer services to all Mercedes engine ECU's which include cloning, unlock to new and for some an immobiliser bypass solution.