Thanks for that Martin! I am however a bit surprised that you reckon that it's got a "good cable" from factory, as this is, as far as I know, one of the earliest 2.2dCi cars. I thought the TDC failure was affecting only the 2.2 dCi cars... 

 I might have misunderstood it though. Very kind of you to have a look. 
The car is behaving nicely. It only once in a while shows the  EKG-icon - very very rarely. And when it does, it has got a 100% record of going away if I turn the key off, and then on again. It has been running flawlessly when running.  

I have however not used the car very much - I think the diesel in the tank is from November...  
 
 ...I'm actually considering selling the car, just because it's a bit pointless at the moment.  
 
  