The heater matrix, also known as a heater core, is usually replaced if found defective. They can be repaired, but is usually cost/performance prohibited.
To fix a heater matrix on a Peugeot 306 2.0L XSI, first, ensure the vehicle is cool and disconnect the battery. Remove the dashboard and the center console to access the heater matrix, then drain the coolant and disconnect the hoses attached to the matrix. Replace the faulty heater matrix with a new one, reconnect the hoses, and reassemble the dashboard and console. Finally, refill the coolant, check for leaks, and test the heating system.
Check the heater matrix, and any other heater related pipes that may be leaking. Or it could just be a leaking door seal.
You can but it's more likely to bung up the radiator or heater matrix, follow the instructions on the container it comes in.
The only fix for a leaking heater core is to replace it.
The only fix for a leaking heater core is to replace it.
This is caused by a broken heater matrix. I have had this problem and its is a real pain to fix as you need to take most of you dashboard off to get to it.
No way to fix that - your tank is scrap.
Not practical to try to fix a heater core. Replace it with a new one.
you should hire a contractor to inspect your water heater. it's probably very expensive to fix and you can't fix the broken water heater yourself. too bad.
check heater motor
To fix a Jaguar S type heater, check the diverter mechanism. It shunts air through the heater core, which may not be operating properly.