Heater problem on my Terios!

Submitted by stanley222 on

Forum: 

Hi all

Complete Noob to this forum so apologies if this is in the wrong section!

I have a '99 Terios but over the past week or so the heater is no longer very warm!
Would it be something simple like the aircon need re-gassing or has my heater matrix gone?!
If it's the latter has anyone changed one on the Terios? Is it easy?!

Thanks in advance

Dave

Begin at the beginning: is

Submitted by assassin on

Begin at the beginning: is the system full of water, and does it contain the correct quantity of anti-freeze. If not water will drain from the matrix, back into the cooling system and create an airlock. If there is insufficient anti-freeze it could be debris blocking the matrix.

Is the vehicle warming up correctly, if not it could be a thermostat sticking open, or slightly open, which could create this situation.

Is the heater valve working and opening correctly, if not it could be restricting the flow to the matrix.

Also check for any small leaks from the cooling system.