I recently bought a Citroen C5 2010 1,6HDI, and got in trouble right away

I'm more familiar with old school car technology (pre BUS-era (CAN etc)). This forum has already proved to be a very good source for information and help, when trying to learn to live with these modern (?) cars (bloody computer networks on four wheels

Next thing to do is learn a bit more about Lexia-clone related things, before buying one.
Yours,
Fin50