Citroen Xantia,High temp and no hot air

miggy24 · Unread post by **miggy24** » 15 Jan 2010, 18:48

Hi all well i just got a xantia and in traffi the temp gauge goes right up to 110 and when i turn the blowers on only cold air comes out so im guessing that theres an air lock somewhere.So can anyone please tell me how to bleed it all.Thanks

Xaccers · Unread post by **Xaccers** » 15 Jan 2010, 19:00

Which engine?
1.9TD, to the back left of the fuel pump there's a junction of 3 pipes with a coolant dust cap on top, remove the cap.
2.0CT back left of the crank case there's an elbow with a unscrewable bleed valve in it.

miggy24 · Unread post by **miggy24** » 15 Jan 2010, 19:08

Hi its the 1.9td.Do the engine have to be running when doing this

Unread post by **CitroJim** » 15 Jan 2010, 20:54

miggy24 wrote:Hi its the 1.9td.Do the engine have to be running when doing this

Yes.

Full procedure: Expansion cap off, run up to temperature, to the tank to brim, open the bleed cap on the three-way junction near/on the RH engine mount and the bleeder on the heater matrix elbow until clear, bubble-free water runs. Top up if necessary to keep the tank brimmed.

Feel all over the rad to check it's hot all over and feel the matrix pipes to check they're nice and hot.

Re-bleed if necessary.

Let run until the fans cut in and then out.

Switch off and leave expansion tank cap OFF until the engine and coolant have cooled right down. Top up if necessary and replace cap. Job done.

Xaccers · Unread post by **Xaccers** » 15 Jan 2010, 20:57

yes. engine running, bleed valve open, jug of coolant to top up.
when coolant comes out the valve, close it.
massage the large rubber hose along the front of the engine.
keep the engine running, you want the fans to kick in and the thermostat to open.
top up as needed

miggy24 · Unread post by **miggy24** » 15 Jan 2010, 21:09

Ok thaks guys.Where can i find the bleeder on the heater matrix elbow

Unread post by **CitroJim** » 15 Jan 2010, 21:48

miggy24 wrote:Ok thaks guys.Where can i find the bleeder on the heater matrix elbow

It looks like a tyre valve cap right on the elbow. It's hard to see but put your hand up there and you'll feel it. It's on the LH elbow if I remember correctly...

Be careful you don't screw it right off and loose it! Also mind the hot water...

Unread post by **citroenxm** » 15 Jan 2010, 22:13

Its ok if you loose it, they are exactly the same as Tyre valve caps !

Paul

DickieG · Unread post by **DickieG** » 15 Jan 2010, 22:17

citroenxm wrote:Its ok if you loose it, they are exactly the same as Tyre valve caps !

Apart from the rubber seal inside at the end.

Clogzz · Unread post by **Clogzz** » 16 Jan 2010, 13:11

the bleeder on the heater matrix elbow

miggy24 · Unread post by **miggy24** » 16 Jan 2010, 16:49

Right well today i got loads of air out of the bleed nipple and the car temp is alot better and i have heat in the blowers.But i still wanna do the one to the heater matrix so my next q is where can i find the heater matrix elbow

Xantidote · Unread post by **Xantidote** » 16 Jan 2010, 18:15

Elbow is located/jammed right up against the bulkhead, at the back of the engine. The elbow's where the two rubber hoses terminate, and feeds the coolant thro' the bulkhead to the matrix, which is buried inside the car behind the dashboard