LS 460 RWD V8-4.6L (1UR-FSE) (2010)
![background image](/lexus/ls_460_rwd/v8-4.6l_(1ur-fse)/Page-751002.png)
09985-02050
09985-02060
09985-02070
(a) Perform vacuum purging using a vacuum pump.
(b) Charge refrigerant HFC-134a (R134a).
Standard:
w/o Rear cooler
600 +/-50 g (21.2 +/-1.8 oz.)
w/ Rear cooler
750 +/-50 g (26.5 +/-1.8 oz.)
NOTICE:
*
Do not operate the cooler compressor before charging refrigerant as the cooler compressor will not work properly without any
refrigerant, and will overheat.
*
Approximately 200 g (7.05 oz.) of refrigerant may need to be charged after bubbles disappear. The refrigerant amount should be
checked by measuring its quantity, and not with the sight glass.
4. WARM UP ENGINE
(a) Warm up the engine at less than 1850 rpm for 2 minutes or more after charging the refrigerant.
NOTICE:
Be sure to warm up the compressor when turning the A/C switch ON after removing and installing the cooler refrigerant lines
(including the compressor), to prevent damage to the compressor.
5. CHECK FOR LEAKAGE OF REFRIGERANT
(a) After recharging the refrigerant gas, check for refrigerant gas leakage using a halogen leak detector.
(b) Perform the operation under these conditions:
*
Stop the engine.
*
Secure good ventilation (the halogen leak detector may react to volatile gases other than refrigerant, such as evaporated gasoline or exhaust
gas).
*
Repeat the test 2 or 3 times.