mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

A/C - Expansion Valve Replacement Special Tool|Page 5111 > < A/C - Expansion Valve Replacement Special Tool
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Expansion Valve: Service and Repair

Data:

Version 
-

Thermostatic valve with external pressure compensation

Tightening Torques:

Pressure hose to expansion valve 5/8" 
-

15-18 Nm

Suction hose to expansion valve 7/8" 
-

29-37 Nm

Evaporator pipeline 3/4" 
-

24-28 Nm 

Evaporator pipeline 3/4" 
-

29-37 Nm

Special Tools:

Open box end wrench with 3/8" square insert 
-

17mm 000 589 69 03 00

-

19mm 000 589 70 03 00

-

22mm 000 589 71 03 00

-

24mm 000 589 72 03 00

Note:  If considerable contamination is found in the expansion valve, or if the a/c compressor is being replaced, then the expansion valve should also be
replaced. The receiver dehydrator must always be replaced.

Expansion valve (diagram)
a

To evaporator

b

From evaporator

c

From receiver dehydrator

d

To compressor

A/C - Expansion Valve Replacement Special Tool|Page 5111 > < A/C - Expansion Valve Replacement Special Tool