Changing a BSI

[16hdirod]

Hi guys I am wondering what is involved with changing a BSI unit, I have a 07 1.6 hdi and I am have trouble with permanent live to instrument panels and also my dials are starting to act up. Any help would be great thanks in advance

[Lighty]

Depend so if you want to fit a new or used one, I would say that neither is easy !

[16hdirod]

I would say secondhand my friend is a Mecanic and knows a lot about the electronic side of things he is just not too up on his citroens.
Do I need BSI ecu ignition barrel and key from doner car?

[Lighty]

Yes, you will need the full kit if second hand.

[16hdirod]

Ok I found a set on eBay, clocks key ecu BSI and ignition reader there for a 1.6 hdi and are bosh units,
question 1: what programing work will I have to do to make all this work.
Question 2: if I change the clocks will my mileage be wrong?