300SE (140.032) L6-3.2L (104.990) (1992)
7.
Stop engine.
8.
Using air conditioning service equipment, evacuate R12 refrigerant at high-and low-pressure sides (A, Figure 2 and B, Figure 3) of A/C system for
45 minutes.
Note:
A/C service equipment should be able to pull at least 29.2" of vacuum.
9.
Refill recycled R12 once again into A/C system.
10.
Operate A/C system again, as in above steps 1-7 for approx. 10 minutes.
CAUTION!
Should the A/C compressor become noisy, stop engine and continue with "D. Replacing Receiver/Drier".
11.
Using air conditioning service equipment, evacuate the R12 at high- and low-pressure sides (A, Figure 2 and B, Figure 3) of A/C system for 45
minutes.
Note:
A/C service equipment should be able to pull at least 29.2" of vacuum.
CAUTION!
At this point, R12 is not to be used in A/C system again.
D. Replacing Receiver/Drier
Please see SMS (beige microfiches), Repair Instructions, Job No 83-540.
E. Installation of Service Valves