Ignition key w203eis (see Pic. 1) repair direction

Pic.1

1) Turn off two screw on body (see yellow frame marked at Pic.2), remove the body (see Pic.3, 4)

Pic.2




Pic.3



Pic.4
2) There are microprocessors at the chip (they break the most often in the series). See location on Pic.5, 6.


Pic.5



Pic.6
3) To reprogram these microprocessors we need to unsolder it and use programmer (see Pic.7).

Pic.7

4) View the chip without microprocessors (see Pic.8, 9)



Pic.8




Pic.9

5) The chip in the programer (see Pic.10)

Pic.10

6) Next you need to buy insertion for microprocessors (it is special file (dump) which allow you to reprogram microprocessor through programer). Or after reading information from microprocessors you can send the file with the information to us. After reprogram we send it back to you. You will need to upload it to microprocessors.

7) The microprocessors must be soldered back after the reprogram. The chip have to be placed to the plastic body and snaped.

Please bear in mind that the standard instruction does not provide 100 % guarantee of successful repair in case of other atypical disrepairs.

All the necessary equipment and programs are available to buy.

If you have any questions please contact us by E mail autolaboratory (at) gmail.com
We will answer your questions within 48 hours.

How can I buy item (programmer, dump editor etc)?

To buy an item
1. Send us request by E mail autolaboratory (at) gmail.com
2. When you got confirmation that the item is available, pay the requested item through the bank.
3. E mail us confirmation of payment.
4. Requested item will be sent to you by E mail (if it's digital) or on your post address after the payment receiving.