Picasso Oil Filter Seal not effective

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My Name: gdn1947

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Posts: 2
Joined: Wed Feb 02, 2022 2:11 pm
Model: C3 Picasso
Year: 2015 (65)
Engine Size: 1.6 i
Fuel Type: Diesel
Mileage: 56000
Trim Level: NA
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: LHD (Europe)
Engine name: BlueHDi (100 PS)
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Hi! C3 Picasso 2015 1.6 HDi. Does anyone have experience of a square section filter oil seal not sealing correctly? I changed the filter yesterday and the seal was not effective! I noted that the removed item was a round cross section O ring which I had to reuse! I used a Purflux L343D which is supposed to be compatible with the C3. Any comments appreciated
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My Name: Arfur Dent

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Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 16-valve diesel (90 PS)
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gdn1947 wrote: Wed Feb 02, 2022 2:33 pm Hi! C3 Picasso 2015 1.6 HDi. Does anyone have experience of a square section filter oil seal not sealing correctly? I changed the filter yesterday and the seal was not effective! I noted that the removed item was a round cross section O ring which I had to reuse! I used a Purflux L343D which is supposed to be compatible with the C3. Any comments appreciated
Hello

I think they may all be similar over the years. There is a large diameter square section 'o-ring' that seals the housing to the oil filter housing.

It is best to lubricate the square section seal with some fresh oil and tighten it to the correct torque - that is not too tight a the seal will deform.

The lubrication helps the seal take is shape as it is tightened.

The seal is often supplied with a new filter, but you can get away with re-using the previous without any noticeable leakage.
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My Name: gdn1947

Member
Posts: 2
Joined: Wed Feb 02, 2022 2:11 pm
Model: C3 Picasso
Year: 2015 (65)
Engine Size: 1.6 i
Fuel Type: Diesel
Mileage: 56000
Trim Level: NA
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: LHD (Europe)
Engine name: BlueHDi (100 PS)
Been thanked: 1 time

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The answer is that I unwittingly bought a filter designed for the Euro 4/Euro 5 generation of engine as fitted to my other car, a Xsara Picasso 1.6 HDi 2005. The correct filter for the 1.6 HDi fitted to my 2015 C3 Picasso ie Mahle OX171/2D1 is designed for the Euro 6 generation which includes a redesigned cap to accommodate the circular o ring . Wish the filter manufacturer had made that clear on the packaging!
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