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Virtual Wrench
Virtual Wrench, Chrysler Mechanic
Category: Chrysler
Satisfied Customers: 14620
Experience:  35 years Master Mechanic
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Radiator for my 99 300m. How do I remove my old radiator myself?

Resolved Question:

I have a new radiator for my 99 300m. How do I remove my old radiator myself?
Submitted: 8 years ago.
Category: Chrysler
Expert:  Virtual Wrench replied 8 years ago.



Here are the instructions for replacing the radiator.


  1. Remove or disconnect the following:
    • Disconnect negative battery cable.
    • Drain cooling system.
    • Upper radiator hose .
    • Upper radiator closure panels.
    • Radiator fan assembly .
    • Radiator fan electrical connector.
  2. Raise vehicle.
  3. Remove or disconnect the following:
    • Lower splash shield.
    • Lower radiator hose.
    • Lower condenser mount bolts.
  4. Lower vehicle.
  5. Remove or disconnect the following:

NOTE: Bolts have a tread locker on them, use hand tools to remove the upper radiator mounting bolts.

  • Upper radiator mounting brackets and bolts.
  • Upper condenser mounting bolts.
  1. Separate condenser assembly from radiator.
  2. Tilt radiator toward engine and remove radiator from vehicle.




To install:

  1. Position radiator into engine compartment.
  2. Seat the radiator assembly lower rubber isolators into the mounting holes in radiator lower support .
  3. Install radiator mounting bracket and bolts. Tighten to 106 inch lbs.(12 Nm).
  4. Position condenser on radiator and install upper mounting bolts. Tighten bolts to 50 inch lbs. (6 Nm).
  5. Raise vehicle.
  6. Install lower condenser mounting bolts. Tighten bolts to 88 inch lbs. (10 Nm).
  7. Install lower radiator hose and clamp.
  8. Lower vehicle.
  9. Install the radiator fan.
  10. Install upper radiator upper hose. Align hose so it does not interfere with the accessory drive belt or engine.
  11. Position hose clamp so it will not interfere with the hood.
  12. Install upper radiator closure panels.
  13. Connect negative cable.
  14. Fill cooling system with coolant.
  15. Operate engine until it reaches normal operating temperature.
  16. Check cooling system and automatic transmission for correct fluid levels.


Thanks for asking!

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