Oil filter problem

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My Name: C3ken

Contributor
Posts: 6
Joined: Tue Feb 15, 2022 8:57 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (56)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 60000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)

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I have just done an oil filter change & I know this sounds strange but I have a part left over.
When I was tightening up the housing I found a small plastic thing that must have something to do with the filter change.
I have changed hundreds of filters but have never seen anything like this.
I have attached a picture & if anyone can help I would be extremely grateful. Thanks, Ken

AD8F7BA3-1487-446C-97F0-87D237214778.jpeg
C1A677B4-C339-4538-8A1F-24CC0896F65A.jpeg
33E4B5E5-9499-4C3B-A070-FC9B7170667E.jpeg
9BBF2DFA-F22B-4F83-9B67-44B4C8F44973.jpeg
My Name: C3ken

Contributor
Posts: 6
Joined: Tue Feb 15, 2022 8:57 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (56)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 60000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)

Post

Does anyone have idea what this plastic thing is? This is left over from a oil filter change.
96FF3157-E2F3-4A6C-811D-2284274D02A6.jpeg
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My Name: Ozvtr

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Posts: 956
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
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You have a thread over in the petrol engine area. This area is not for engine related questions.
Please don't double post, the thread can get fragmented.
Thank you.
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My Name: Ozvtr

Moderator
Posts: 956
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
Has thanked: 37 times
Been thanked: 256 times

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Did it come off the old filter or the new filter?

The 6th, 7th and 8th characters of your VIN should be KFV.

The KFV (TU3JP) engines' filter, have a plastic 'tail' that clips into the filter element and inserts down into the filter housing riser. This tail may stick in the filter housing riser when you pull the filter out.

A brand new filter will come with 1 large and 1 small o-ring, the filter element and the plastic tail piece. That item in the photo is not for the KFV engine. It might be for a later variant of the TU3 engine, like the ET3 but I don't know.

I do not know what brand or part number filter you bought and so it might be a multi-fit arrangement in which case ignore the extra bits. Or you might have bought the wrong filter!?
My Name: C3ken

Contributor
Posts: 6
Joined: Tue Feb 15, 2022 8:57 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (56)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 60000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)

Post

Thanks for your reply
It was’nt attached to anything. I found it lying in the filter carrier when I went to replace the new one.
There is a spring in the carrier approx 3cm long
But it does’nt seem to fit over this
My Name: C3ken

Contributor
Posts: 6
Joined: Tue Feb 15, 2022 8:57 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (56)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 60000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)

Post

13ACF077-26E4-47A3-A8A6-B8A37E416FE0.jpeg
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5BFE5BDE-535B-4E7B-B4F4-9D56CC108DC4.jpeg
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My Name: Ozvtr

Moderator
Posts: 956
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
Has thanked: 37 times
Been thanked: 256 times

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D'oh!!!

There are a couple of types of cast aluminium oil filter housings.

One uses a short filter and one uses a long filter (with a tail).

The short filter is typically used in the 1.6i (NFU) engine. The long filter is typically used in the 1.4i engine (KFV). HOWEVER there are some productions where they have "swapped" the housings!!! I wasn't sure until now, but now I know.

The filter clips into the top of the black plastic filter housing cap and then the cap and filter are inserted into the aluminium housing. There has to be a difference between the filter housing caps because the filter sizes are different. But I don't think that clip is part of the equation.

I own a C2 with the NFU engine and the smaller filter. I knew they were different but I never explored the difference. I will try and have a look and see.

Please confirm that you have a KFV engine?
My Name: C3ken

Contributor
Posts: 6
Joined: Tue Feb 15, 2022 8:57 pm
Model: C3 2006-2009, Facelift model
Year: 2006 (56)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 60000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: Yes
LHD or RHD: RHD (UK)
Engine name: TU3 (75 PS)

Post

Hi Ozvtr
The engine is a KFV & the filter is a short one (no tail)
I was beginning to think that this clip was not part of the equation but I’m not sure now as it fits perfectly into the filter but will not clip into the plastic housing. It looks like this clip should be permanently located in the housing which would explain why I have never seen it before but I can not get a good fit as it seems too small.
I have put the new filter in but noticed it was very loose & had to hold it in place when inserting it in the aluminium carrier.
I will have another go tomorrow.
The most annoying part of this is that I have just repaired the damage caused by a snapped cam belt so I know what I’m doing. All that work & a plastic clip has totally confused me!
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My Name: Ozvtr

Moderator
Posts: 956
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
Has thanked: 37 times
Been thanked: 256 times

Post

Seems that around 2004 PSA modified the oil filter housing and riser. I don't know if this applies to the diesel engines, but they changed the housings on the TU3 and TU5 engines.
The quick way to tell is the plastic cap on the 'new' filter housing has 'ears' on it. The other way is the orientation of the grey oil pressure sensor. On the new housings the sensor is mounted horizontally, with a guard under it. On the old housing it is mounted vertically (downwards). The new housing uses the short filter, the old uses the long filter.
The shape of the latter plastic cap is slightly squatter to accommodate the shorter filter.
User avatar
My Name: Ozvtr

Moderator
Posts: 956
Joined: Wed Jul 10, 2019 3:31 am
Model: C3 2002-2005, Original shape model
Year: 2003 (53)
Engine Size: 1.4 (8v)
Fuel Type: Petrol
Mileage: 80000
Trim Level: Other
Gearbox: Automatic PRND
DPF: No
LHD or RHD: RHD
Engine name: TU3 (75 PS)
Location: Brisbane, Australia.
Has thanked: 37 times
Been thanked: 256 times

Post

C3ken wrote: Thu Feb 17, 2022 12:17 am I have put the new filter in but noticed it was very loose & had to hold it in place when inserting it in the aluminium carrier.
I am doing up a blurb to go in the tips and tricks about the oil filter. I'll leave a link here when I'm done.

The filter snaps into the cap and then the cap is screwed onto the housing. The spring is part of a valve that closes when the filter is removed and opens when the filter is installed. It reduces the chance of unfiltered oil and contaminants going down the housing into the engine (I guess).

I have no idea what that clip (or what ever) is doing in there. As I said it may be possible the clip is used in another engine?

If your filter does not snap into the cap, the cap may be broken and it's possible that...thing...is actually part of the cap? I have looked in my caps but I cant see anything that looks like that. If the cap looks intact but the filter won't snap in, it might be the wrong filter.

I knew that there were different filter housings but I thought they were different for different engines. I didn't realize they where different because of the year of manufacture! I have a 2003 KFV(TU3JP) 1.4i in my daily C3, a 2004 NFU(TU5JP4) 1.6i in a C2 and another 2005 KFV(TU3JP) in a wrecked (auction) C3. While I have looked at it a lot I didn't realize the wrecked C3 had the same filter housing as my C2!!!
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