C5 1.6 Hdi Additive Pump Location?

[Stephen79]

I have a fault in my 2007 1.6 hdi C5 'additive pump open circuit/shorted to ground'.. Does anyone know where the blooming pump is?! Is it in the additive tank itself? I keep getting the dash message 'additive level low', I took down the tank to check and found it was full! Unfortunately my ds150 copy won't allow me to reset the counter. Any help appreciated with this. Thanks.

[paul.h]

The additive low level message is based on the number of fuel tank fills and not the actual level. When the eolys fluid additive is topped up a diagnostic using the Citroen Lexia is needed to tell the car it has been topped up, otherwise the low level message will continue. Despite the message, on here it has been reported the additive will still be dosed if the tank has some in. You can check if the additive is still being dosed by looking inside the exhaust tail pipe, it should be clean metal if the dpf system is working, at least on our cars it is.

 

The additive pump is on the side of the additive tank and should have a pipe coming from it to the fuel tank level gauge.

[Stephen79]

Thanks Paul. I saw a connector plug on the side of the additive tank with two wires in it so I wasn't sure was that a pump or a level indicator. That unit must be faulty. Thanks for clearing that up for me. Not sure whether the fuel is being dosed with the additive but the car flew through its last test emissions wise anyway. I have been driving it away anyway although it seems a bit hard on diesel. Although two wet looking injectors might not be helping that.