1.4 16v HDi: How to change the Air Filter

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My Name: C3CAR

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Posts: 2706
Joined: Wed May 04, 2011 10:01 am
Model: C3 2002-2005, Original shape model
Year: 2002 (02)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 140000
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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This is a step by step guide for accessing the air filter on a Diesel Citroen C3. Removing parts required to access the air filter also gives access to the fuel filter and fuel filter water drain off. Maybe its time to drain the water from the filter?

Parts required:

the new air-filter from euro car parts (click here)

Air filter for a 16v HDi 1.4 Citroen C3
Air filter for a 16v HDi 1.4 Citroen C3
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Pop the bonnet and prop it open securely to allow access to the engine bay.
Citroen C3 1.4 16v HDi Diesel Engine Bay
Citroen C3 1.4 16v HDi Diesel Engine Bay
Remove the sound shield (if fitted). No tools are required, it needs a pull up to release it from its rubber mounts. This then gives access to the diesel hand priming pump and its mounting clips.
Citroen C3 HDi engine bay showing hand priming pump
Citroen C3 HDi engine bay showing hand priming pump
Unclip the Diesel hand priming pump from the C shaped black plastic clips to reveal 2 phillips head screws. There are 3 screws in total that hold the two halves of the air filter box together.
Citroen C3 Diesel Hand Priming Pump
Citroen C3 Diesel Hand Priming Pump
Find the air intake cover marked with 1 2, twist the knob a quarter of a turn.
Citroen C3 air intake cover
Citroen C3 air intake cover
Remove the air intake cover
Citroen C3 with the air intake cover removed
Citroen C3 with the air intake cover removed
You can now remove the front half of the battery cover. It just pulls up, but take note of how the clips sit in the battery tray.
Citroen C3 Battery cover removed to allow removal of the air intake pipe
Citroen C3 Battery cover removed to allow removal of the air intake pipe

Slacken the turbo inlet pipe, just a few turns on the clip
Citroen C3 1.4 16v HDi turbo inlet pipe removal
Citroen C3 1.4 16v HDi turbo inlet pipe removal
Disconnect the wiring harness from the MAF - Mass Air Flow sensor on the turbo inlet pipe. Squeeze the clip and pull
Citroen C3 HDi Mass Air Flow sensor MAF on the Turbo inlet pipe
Citroen C3 HDi Mass Air Flow sensor MAF on the Turbo inlet pipe
The turbo inlet pipe can now be removed from the turbo and the inlet breather. Its still attached to the air filter box.
Citroen C3 HDi turbo inlet pipe detached from the breather and the turbo
Citroen C3 HDi turbo inlet pipe detached from the breather and the turbo
Remove the air inlet pipe. it just pulls up at the front and the back after pulling it from the rubber mounting clip underneath the pipe.
Citroen C3 HDi air inlet pipe lower mounting point, inlet pipe removed showing accesss to the diesel fuel filter
Citroen C3 HDi air inlet pipe lower mounting point, inlet pipe removed showing accesss to the diesel fuel filter
The air filter box is not fixed to the car, but held by two rubber mountings on its base and held by the associated plastic pipes attached to it. Its now possible to move the air filter box around to get a good access to the 3 phillips screws holding the two halves of the air box together. Undo the 3 captive screws.
Air filter removal screws
Air filter removal screws
(Click the image to make it bigger)

With the screws undone the lid now hinges off the air filter box. Its held in by clips at the back, but they just detach when you hinge up the lid. The air filter lid with turbo inlet pipe attached can be easily removed from the car to allow access to the air filter.
Citroen C3 Hdi Turbo inlet pipe removed with MAF sensor and Air filter box head with captive screws.
Citroen C3 Hdi Turbo inlet pipe removed with MAF sensor and Air filter box head with captive screws.
Note the lugs on the air filter box lid at the top of the photo, these need to be aligned to the box when refitting, before tightening the 3 screws.

At this point you should have access to the air filter and plenty of access space. Note the two mounting points under the air filter box (not in the photo). The air filter box will need to sit snugly in the holes when its being refitted.
Citroen C3 diesel HDi air filter inspection
Citroen C3 diesel HDi air filter inspection
My Name: Deltech

Contributor
Posts: 14
Joined: Thu Jul 19, 2018 11:20 am
Model: C3 2002-2005, Original shape model
Year: 2007 (07)
Engine Size: 1.4
Fuel Type: Diesel
Mileage: 77000
Trim Level: Desire
Gearbox: Manual 5 speed
DPF: No
LHD or RHD: RHD (UK)
Engine name: DV4 diesel (70 PS)
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What a thoroughly comprehensive description of how to change the air filter.

Thanks for this.

Having not really done any car maintenance since the days of the Ford Cortina, I am shocked at how long winded it is to change a simple air filter.
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