How to Diagnose/Replace a Heater Matrix on a Citroen C4 Picasso MK2: A Complete Guide

[@micklally5501]

Great video,as always very informative,well done👍

[@NeilSnapePhotography]

I've watched this twice. Yet I am wondering what that bloc in front of the heater core where you unplugged the big electrical connector? I am trying to find out where the thermistor is in this car. My A/C and heat are on and off, both work, yet it is erratic. The fans never change speed no matter what the set point temperature is changed to except for low or high.

[@ProctoLogic]

Its located just under the blower

[@-DC-]

Not the worst to do by a long shot 👊

[@peugeotCitroen2CV]

A lot handier than the days of the 306

[@justinhinchliffe2355]

Great job ❤

[@peugeotCitroen2CV]

Thank you! 😄

[@joej9247]

Excellent video

[@NAGULNR2]

Hey I've just come across your channel and I figured you'd be the right person to ask. I'm looking to purchase either a PSA product or a Renault from the 2008-2014ish range. For the Renault I'm looking at the 2.0 naturally aspirated petrol, alongside their dci diesels (1.5/1.6/2.0). For PSA cars it seems the 2.0 HDI is the best engine (the 1.6thp the least reliable). Wondering if you have any advice to steer me one way or another, if the PSA 2.0 is better than the Renault 2.0 dci, or if any of the engines mentioned above are to be avoided. Thanks!

[@peugeotCitroen2CV]

Hi there, thanks for asking. I prefer PSA products myself, just think they feel better made and generally are more comfortable and nicer to drive. Although any renault with the 1.5 K9K diesel engine is generally quite good, its gruffer than the peugeot 1.6hdi but seems to be hardy enough. The 1.6 16v HDi did have the reputation for blowing turbos, its not a bad engine is quite punchy and easy to run but it will not tolerate lack of maintenance as well as the old 2.0 8v engine. Remember that engine was replaced with the 2.0 16v that the 407 and facelift 307 would have got. With regards petrols... PSA petrols after the TU range and excuse the language they went to shite. The prince 1.6 petrol in all guises i wouldn't touch with a barge pole, the puretech 1.0 and 1.2 3 cylinder engines in some guises they can be quite flexible engines but i dont like 3 cylinder engines in general and then the wet belt is another thing to look out for. If its been changed, and if the correct oil is used it might be ok. But buying one used you might need to budget to remove the sump clean out any bits of belt in the strainer and replace the belt. Renault petrols, i am less experienced with but in general the naturally aspirated ones like the 1.2 16v and 1.6 are fairly simple and straightforward. 2.0 might be a bit thirsty. Their diesels, i do not have enough first hand experience with, just dont think they are as good as the PSA engines. Personally i really like the 1.6 8v HDi they fixed some of the issues the 1.6 16v engine had, in something like the 2012 C4 hatch or berlingo its a good choice. I really like it in this C4 picasso with a proper torque converter automatic gearbox. In a lot of applications its on £30 a year tax or lower.

[@jaywatson6524]

This is so helpful. Thanks

[@highspeedgaz]

Well informed and video edited , well done .