Acura 3.5 RL Manual page 274

Radiator
Engine Coolant Refilling and Bleeding
'01 model:
CAUTION: When pouring engine coolant, be sure to
shut the relay box lid and not to let coolant spill on the
electrical parts or the paint. If any coolant spills, rinse it
off immediately.
NOTE:
Perform this procedure when the engine is cool.
Before replacing the coolant, turn the ignition ON (II),
slowly turn the climate control temperature knob to
90°, and turn off the ignition. This will allow the
coolant in the heater to drain out with the rest of the
system.
When the radiator is cool, remove the radiator cap.
Loosen the drain plug, and drain the coolant.
DRAIN CAP
2. Remove the drain cap from the coolant drain pipe
to drain the block.
3. Put the drain cap back in place, then reinstall the
clip on the drain cap securely.
4. Tighten the radiator drain plug securely.
5. Remove, drain and reinstall the coolant reservoir.
Fill the tank to the MAX mark with Honda All
Season Antifreeze/Coolant Type 2.
6. Remove the engine cover (see page 5-3).
7. Loosen the air bleed bolt in the thermostat housing,
then pour Honda All Season Antifreeze/Coolant
Type 2 into the radiator to the bottom of the filler
neck. Do not let coolant spill on any electrical parts
or the paint. If any coolant spills, rinse it off immedi-
ately.
NOTE:
Engine Coolant Refill Capacity [Including reservoir
(0.65
6.1
DRAIN
PLUG
8. Tighten the bleed bolt as soon as coolant starts to
9. With the radiator cap off, start the engine and let it
twice). Then, if necessary, add more genuine Honda
All Season Antifreeze/Coolant Type 2 to bring the
10. Put the radiator cap on tightly, then run the engine
Always use Honda All Season Antifreeze/Coolant
Type 2. Using a non-Honda coolant can result in
corrosion, causing the cooling system to mal-
function or fail.
Honda All Season Antifreeze/Coolant Type 2 is a
mixture of 50% antifreeze and 50% water. Pre-
mixing is not required.
(0.69 US qt, 0.57 Imp qt))]:
(6.4 US qt, 5.4 Imp qt)
BLEED BOLT
9.8 N-m (1.0 kgf-m, 7.2 Ibf-ft)
run out in a steady stream.
run until warmed up (radiator fan comes on at least
level back up to the bottom of the filler neck.
again and check for leaks.