What is a car's heater matrix?

A heater matrix forms part of a car’s cooling system, but instead of solely being used to cool down the vehicle’s coolant, it takes the heat from that coolant and uses it to warm the car’s cabin.

This is what my car looked like 3 years ago. Heater core replacement. : r/B5Audi

Hey, Why is My Car's Heater Not Working?

What is a car's heater matrix?

Heater Matrix - TechWiki

Why is My Heater Blowing Cold Air in My Car? - JB Tools Inc.

Will Bypassing Heater Core Cause Overheating? Here's The Truth

Heater Core. see Warranty for details. The warranty does not cover anything else, including labor, removal, installation, diagnostic and other

New AC Heater Core for Lincoln Town Car - 2003 to 2011 - 4.6L - OE# 3W1Z18476AA

Heater core - Wikipedia

Compact Heater Matrix And Fan Kit

AGCO Automotive Repair Service - Baton Rouge, LA - Detailed Auto Topics - How To Fix a Car's Heater

Heater core - Wikipedia