C4 Picasso 1.6 BlueHdi oil leak

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contisg
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Joined: 29 Jun 2024, 11:59
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C4 Picasso 1.6 BlueHdi oil leak

Unread post by contisg »

Hi members,

Currently experiencing a teething issue.. My car is loosing at least 500ml oil every day, and I drive approximately 150km a day..

There are no top source. ie, everything at the top are dry, but there are lot's of dried oil stain around the oil filter housing, but my thought was, since it's leaking 500ml oil everyday then the stain should be wet? but they're like caked up oil, except for one other part that's attached to the gearbox that looks to be like a cooler, and this part is dripping oil and the oil stain around this part is wet, and I did a search and found the part to be listed as "Engine Oil Cooler".. and also, "Automatic Transmission oil cooler".. but it has engine oil around it, and not transmission oil..

Edit: If I understand correctly, the oil cooler at the oil filter housing uses the radiator coolant for cooling. But, anyone knows what passes through this cooler?

So, my question is.. is the part an engine oil cooler, or a transmission oil cooler..Image
Last edited by contisg on 16 Jan 2026, 13:48, edited 1 time in total.
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mickthemaverick
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Re: C4 Picasso 1.6 BlueHdi oil leak

Unread post by mickthemaverick »

What year is the car, as I only have parts info up to 2012 cars? :)
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
contisg
Posts: 5
Joined: 29 Jun 2024, 11:59
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Re: C4 Picasso 1.6 BlueHdi oil leak

Unread post by contisg »

Thanks for reading my post..

The car is 2013 1.6 MK2 bluehdi..
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mickthemaverick
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Re: C4 Picasso 1.6 BlueHdi oil leak

Unread post by mickthemaverick »

This link would suggest that the cooler is for the transmission fluid. :)

https://www.onlinecarparts.co.uk/nissens-23934864.html
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!