Air and oil filters

Citroën specifies Purflux oil filters but there are other manufacturers producing similar units as well. For the air cleaner element, Citroën specifies Miofiltre, Lautrette and Quillery but only using its part number instead of some manufacturer code.

Model and ORGA

[engine]
Oil filter
Citroën part no Purflux Bosch Champion
BX 11/14

3522–3644

3645–4192

4193– [K1G]


91 509 816

95 638 829

96 002 933


LS 498B

LS 408C

LS 4668A


O229

?

O200


?
BX 16/19

3522–3644

3645–


95 495 622

96 002 933


LS ?

LS 4668A


?

O200


F104
BX 19 GTi 16V 96 002 933 LS 4668A O200 F104
BX 17/19 xD

3522–3644

3645–


95 495 622

96 002 933


LS ?

LS 4668A


?

O200


F104
BX 17 xD turbo 96 002 933 LS 4668A O200 F104
Model and ORGA

[engine]
Air filter
Citroën part no
BX 11

3522–4205 [109LA]

4206– [H1A]


7 901 144 551

95 619 441
BX 14

3522–4192

4193– [K1G]


7 901 144 551

95 619 441
BX 14i 95 619 441
BX 15/16 RE 95 605 128
BX 16

3522–4157

4158– [B2C]


95 605 128

95 618 786
BX 16/19 xI

BX 19 GTi 16V
95 618 786

Lautrette ELP 3314
BX 19 xS 95 605 128
BX 17 xD 95 605 128
BX 19xD

3522–3795

3796– [D9B]


95 605 128

95 618 786
BX 17 xD turbo 95 618 786

Some manufacturers produce replacement air filters. Probably the most widely known of them is K&N. These filters let more air flow through them, thereby increasing the performance of the engine. However, they fall behind in collecting dirt and dust particles: this means more damage to the engine in the long run, especially if you use your car in a dusty environment. You have to decide for yourself whether the higher performance is worth the higher risk.

Martin GUTKOWSKI

The best oil filter to use is Purflux. It has a patented internal structure different--and better--than the others. Both Champion and Bosch suffer from the fact that they are manufactured at many plants all around the world. Although the technology is supposed to be the same everywhere, there are significant differences between the quality of those filters. If you can be absolutely sure that your Bosch filter came from Germany or the Champion one from France or Belgium, it's all right. Otherwise, with Purflux (don't mix that with Purolator) you won't take any chances.

Avoid lesser quality filters. I have already lost a camshaft due to a Fiam filter. I bought the filter in good faith at a Citroën dealership and, in spite of a premium quality synthetic Castrol engine oil and more frequent oil changes than recommended, the eighth lobe of the camshaft (the one farthest from the source of lubrication) was gradually eaten away. The lubrication system was checked to see the cause and the filter was the only part found to be guilty.