Coolant change C5 V6 petrol?

[Harlequin]

Heya, how do I drain all the coolant from the system on a mk1 (2005) C5 V6 petrol? removing the water pump yielded about 1/2 a bucket

[GiveMeABreak]

The procedure is identical to this one I have already posted for a C4, illustrated, so will save me retyping it up. It includes the de-gassing procedure:

viewtopic.php?f=3&t=61536&hilit=Blank+t ... od#p595421

[Harlequin]

CHeers boss - got out as much as possible (there is no bottom hose on the V6), so will follow the process for refill once the new pump etc is on!

[GiveMeABreak]

I think they kept the same procedure - so in your case it would probably be the bottom 2.

Anyway, some other info on the V6 cooling system in case you need it:

Click to Zoom Diagram

Key

(1) heater matrix.
(2) Bubble trap.
(3) thermostat.
(4) Coolant outlet housing .
(5) Coolant inlet housing.
(6) Engine cooling radiator .
(7) Header tank.
(8) bleed screw(s) .
(9) Oil / water heat exchanger (automatic gearbox).
(10) Temperature sensor .
(11) temperature switch.

Data
Designation	Values
Total capacity of circuit	14 litres
Radiator surface area	27 dm2
Pressurisation	1,4 bar
Opening of thermostatic regulator	78 °C

Fan
Designation	Values
Number x Electric power	1 x 500 W
1st gear	FRIC function
2nd speed	105 °C
Warning	118 °C
Post-cooling	6 minutes

Reference	10	11
sensor	Temperature sensor	temperature switch
Information	Coolant temperature: Warning	Coolant temperature: Gauge
Connector colour	Brown	Blue
Tightening torque	1,7 ± 0,4 daNm	1,7 ± 0,4 daNm

[Stickyfinger]

And....pay very careful attention to the refill procedure, there is a bleed screw on the water flow manifold (outlets on the side of the engine....8) and one leading to the heater matrix (also 8) ...this is "LIKE" a tyre valve...it is NOT the same and has a seal inside as well as being deeper. (easy to drop as well) I have replaced mine with a metal truck valve cap that is fitted with a seal.

[Harlequin]

All done and bled!