Vauxhall Astra Heater Matrix Problems

Problems mentioning the Heater Matrix on the Vauxhall Astra
Heating
1998 1.6
Posted: Sep 15, 2010
2
replies
Heating
1998 estate
Posted: Sep 17, 2010
2
replies
Heating
1998 1.6 estate
Posted: Sep 29, 2010
2
replies
Coolant
2003 1.7 ctdi
Posted: Dec 10, 2011
2
replies
Cooling system
2000 1.8 sxi manual
Posted: Mar 13, 2012
1
reply
Heater does not work
2002 1.7 Diesel
Posted: Nov 2, 2013
2
replies
Only blowing cold air from heater
1999 1.6 ls estate auto
Posted: Nov 22, 2014
4
replies
Coolant leak and head gasket failure
2015 1.4T SRi
Posted: Nov 13, 2022
2
replies
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What problems can be caused by a faulty Heater Matrix?

Steam coming from engine area

After the engine has been running there is steam coming from underneath the bonnet. The steam is white in colour.

Coolant leaking near to the heater matrix

On inspection there is coolant fluid around the heater matrix, often this is concentrated near the pipes entering the matrix.

Warm air from heater not as warm as it was

The air coming from the vents is not as warm as it was previously, even with the heater controls turned up it still doesn't get as hot as it did.

Heater stays at same heat level

The heat level coming from the vents stays around the same temperature, it doesn't get any warmer even after the heater controls have been turned up.