Heater in Xsara Picasso 1.6 HDI

Hello good,
the first to greet all the members of the forum with a cordial greeting.
I am new in the forum, although I already knew the page before and some has saved me in vehicles that I no longer have hehe ...

as you can imagine I am here to make a consultation about the heater, well I expose my problem and see if someone can help me with their wisdom haha ​​..

Well it turns In Citroen and they told me. The problem is that in this car I am not playing ... nest to find where they are housed. I have tried to download some manual, but there is no for 1.6 HDI and I have even seen a tutorial of the change of heater in a 2.0 HDI, but the issue is that it is not similar in mine. The truth is that when I did not see them ahead, I thought they would be behind haha ​​.. I have disassembled the air filter to see if I saw something and nop ..

the only thing I ask is that if anyone knows how to tell me the exact accommodation and if I already sent a photo of the location, I would appreciate it very much.

Thank you very much in advance and please send an answer before half a car disassembles hehehe ...

In the 1.6 HDI, the start of heating does not usually give problems (in the direct injection practically there is no need) what if it is very cold smoke if you have more than one breakdown .... I would look for the problem in the return of the injectors, air intake in pipes or filter coach (eg), in any case, these are behind in the butt (quite hidden, but you Resistance to see how many do not work (disconnecting the cable), what I do not advise you is the disassembly if you see that they go hard, because they usually "grab" on the tip and two things can happen: that you fuck the thread in the butt ... or that the tip is left inside the cylinder head ... I think it is a 7 mm vessel I no longer remember well. You can find many comments of this that I tell you there, the issue of this engine is problematic in terms of heaters and the leakage of injectors that leaves you these "soldiers" to the cylinder head ... Look if you have "carbon" around injectors. Have luck !!