OEM Dodge Sprinter 3500 Heater Core

Dodge Sprinter 3500 Heater Core Parts and Q&A

• Heater Core
  68012614AA
  Q: How to Safely Remove and Service a Heater Core on Dodge Sprinter 3500?

  A:

  Before servicing the heater core, first turn off the air bag system by disconnecting and separating the battery negative cable and then allow two minutes for the system to discharge. We should use protective methods on the front face of the instrument panel to avoid it becoming damaged in appearance. First, take out the instrument panel and HVAC housing as an assembly and put them on your workbench. After this, detach the blower motor power module or Blower Motor Resistor from the unit, depending on your car's setup. Following this, unfasten the metal clamps holding the heater core tubes to the heater core, disconnect the tubes and remove and throw out the O-ring seals. Take care not to harm the stud mounting boss as you remove the retaining bracket and use vise grips to hold the stud as you remove the nut from the top of the bracket near the blower motor. In the end, make sure the blower motor part of the housing sticks out a little forward and lift the heater core straight from the side.
• Heater Core, Rear
  5133586AA
  Q: How to Maintain a Heater Core on Dodge Sprinter 3500?

  A:

  First, remove and isolate the battery's negative cable to disable the supplemental restraint system on vehicles with air bags, then let the system capacitor drain for about two minutes to avoid accidental air bag release. You need to break down the heat layout to remove the housing and reach the heater core. Lift the heating core from its location in the lower half of the HVAC housing and if you must, take out the three bolts from the assembly and remove the entire tube unit. Take out the heater core tube seals just as the instructions call for. For installation, after removing the heater core tube assembly, put clean engine coolant on two new rubber seals and attach them to the heater core tubing using a screwdriver. If it is necessary, attach the heater core tube to the heater core and fasten it by securing the three retaining bolts until they reach 5 N.m (45 in. lbs.) tightness. After putting the heater core back into the HVAC housing, remake the capsule and flush the cooling system if you changed the heater core before attaching the housing again.