C5 heater throughput

[Peter.N.]

The heater on my C5 seems to have very little volume of air coming from the outputs, even with the fan on full there is not much of a draught, I have checked the pollen filter - but it doesn't seem to have one, any suggestions or are they all like this. Takes me back to the CX heater!

Peter

[reblack68]

It should have a pollen filter, accessible from the passenger footwell IIRC. The throughput is pretty hopeless even with a new filter though. You can't seem to get subtle ventilation trickling through, if you want any kind of throughput the fan has to be roaring.

The above applies to the LX, which has conventional heater controls, but I imagine the SX is much the same as far as airflow goes.

[Jabo]

You can't seem to get subtle ventilation trickling through, if you want any kind of throughput the fan has to be roaring.

The heaters on my SX are excellent IMO. Individual passenger and driver side temperatures. The 1st setting is enough to give a gentle heat/cooling and it gradually gets stronger as you increase the fans.

[Peter.N.]

The reason I particularly wanted an SX was because of the dual zone heating, I am always cold and my wife is not, the one and only SX XM I owned had it, strange that it wasn't used on the VSX or exclusive.

The heat output is reasonable on the C5 but even on full fan there is nothing like as much air flow as in the XM so it takes some time to get warm, its not as good as the 406 either although that has auxilluary heating which is brilliant.

I looked for the pollen filter under the passenger side dash but there is nothing there that resembles the picture in the Haynes manual, there is a plastic box but it is secured to the body by three 10mm bolts and doesn't appear to be connected to the air supply and I couldn't even get the cover off with the bolts removed, am I missing something?

Peter

[SaabC5]

The pollen filter isnt under the passenger side dash its in the passenger footwell on the right hand side underneath where the climate control mechanicals are. There's a small flap with 2/3 bolts holding it on, undo the bolts and the filter pulls out sideways, i would hazard a guess its pretty much blocked because the heating/air flow on my SX in just fine. Make a note of the way the arrow points on the old filter when you remove it, just to ensure you put the new one in the correct way round.

[Peter.N.]

Ah! Thanks for that I am obviously being stupid - again. I will go and have another look, the manual doesn't make it very clear. It certainly feels as though that could be the problem.

Peter

[Citroenmad]

The fan output should be very good, they are not underpowered usually. I often only have the fan on one or two on the digi climate control and its enough.

Might well be a choked pollen filter, its the easiest place to start looking.

[Peter.N.]

Will do, I haven't had time today because the sun has been shining

[Jabo]

If you have the output going to your feet, face and windscreen at the same time it is quite rubbish compared to just blowing on your face