Yuting said:It should be at the front of the engine opposite the radiator. If you lift the bonnet and look down, it's right in front of you. there is also a clear plastic pipe connected to the bottom of it for draining water.
Y.W.
Yuting Wan said:For petrol model, most fuel filters fitted underneath the body slightly behind the front door. For diesel cars, most of them have the fuel filter in engine bay.
Yuting said:In my 406 HDI service manual, the fuel filter needs to be purged every 20k and replaced every 40k. the purge is done through the draining pipe manually.