How to pull the LHM filter out !
It is easier than you may think. I never though I can do that. But I can make it. So, I am sure all of you can. Trust me.

By the way, I can not find the way to do as they shown in pictures. I have to take out all of the hoses prior to pull out the filters.  Who can do , just tell me how without broaken hoses.
Just for your information:
Do you see small cap in the left picture?
If you loose it or it is broaken, you will not have a chance to go anywhere. All of your coolant will disappear in few minutes.

In order to go home without spare parts. I tailor made that cap (โรงกลึงทำให้) and can use it for a month. Then, I lost the big plastic themostat cover as the cap and the cover are not perfectly match.

Next time you go to part shop. Buy this cap and spare it in your car. It make from plastic, as you know all rubber and plastic parts in Citroen have their useful life. Or you may change to the new one and keep the old one for emergency use.

Oh! I forgot to tell you that the price of this cap is just Baht 15. So Cheap!
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