E 420 (210072) V8-42L (119985) Expansion Valve Location: Page 8564
12
Switch on air conditioning and allow it to idle for approx. 4 minutes
NOTE: Set temperature dials to blue or automatic air conditioning to "LO" Blower to max.
13
Check air conditioning for proper function
NOTE: Air outlet temperature at center nozzle should not drop below + 5 degree C , if necessary Perform diagnosis accordingly.
14
Find leaky point in air conditioning circuit.
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Air conditioning leak detector
See "Commercially Available Tools" given below.
Commercially Available Tools
Commercially Available Tools