Acura TSX / Honda Accord CL. Manual - part 394

Fig. 8: Checking Coolant Level In The Reserve Tank 

2. If the coolant level in the reserve tank is at or below the MIN mark, add coolant to bring it up to the MAX 

mark, and inspect the cooling system for leaks.  

COOLANT REPLACEMENT 

1. Start the engine. Set the heater temperature control dial to maximum heat, or climate control system to 

HI, then turn off the ignition switch. Make sure the engine and radiator are cool to the touch. 

 

2004 Acura TSX 

2004 ENGINES Cooling System - TSX

  

 

2. Remove the radiator cap.  

3. Loosen the drain plug (A), and drain the coolant. 

Fig. 9: Loosening The Drain Plug And Drain The Coolant 

4. After the coolant has drained, tighten the radiator drain plug.  

5. Remove, drain, and reinstall the reverse tank.  

6. Fill the reserve tank to the MAX mark (A) with Honda All Season Antifreeze/Coolant Type 2 (P/N 

OL999-9001). 

 

2004 Acura TSX 

2004 ENGINES Cooling System - TSX

  

 

 

2004 Acura TSX 

2004 ENGINES Cooling System - TSX

  

 

Fig. 10: Filling The Reserve Tank To The MAX Mark

7. Pour Honda All Season Antifreeze/Coolant Type 2 into the radiator up to the base of the filler neck. 

Engine Coolant Refill Capacity [including the reserve tank capacity of 0.6 Q (0.6 US qt)] : 

M/T: 5.1 L (5.4 US qt) 

A/T: 5.0 L (5.3 US qt) 

NOTE:

z

Always use Honda All Season Antifreeze/Coolant Type 2 (P/N OL999-
9001). Using a non-Honda coolant can result in corrosion, causing 
the cooling system to malfunction or fail.  

z

Honda All Season Antifreeze/Coolant Type 2 is a mixture of 50% 
antifreeze and 50% water. Do not add water.  

 

2004 Acura TSX 

2004 ENGINES Cooling System - TSX