LHD model shown. RHD model similar.The heater core (1) is mounted into the passenger side of HVAC air distribution housing, located behind the instrument panel. The heater core is a heat exchanger made of rows of tubes and fins and is secured into the air distribution housing by plastic retaining tabs.The heater core tubes (2) are secured to the heater core by use of crimped fittings (3) and to the HVAC housing by a metal bracket and screw. The heater core tubes are not serviced separately from the heater core. The HVAC housing assembly must be removed from the vehicle to service the heater core and tubes.