Check evaporator for leaks

AR83.30-P-5550GLC

Check evaporator for leaks

15.11.11



Checking

 Danger!

Risk of explosion caused by welding or soldering work on closed air conditioning system. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with liquid refrigerant.

Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated areas. Carry out repair work on the air conditioning system circuit only after the system has been drained.

AS83.00-Z-0001-01A



Procedure for a damaged or leaky air conditioning system

All models

AH83.30-N-0004-01A



Protect air conditioning circuit and components from moisture when carrying out repair work

All models with air conditioning

AH83.30-N-0005-01A



Notes on handling R134a refrigerant

Air conditioning with refrigerant R134a

AH83.30-N-0003-01A

1

Remove expansion valve

AR83.30-P-5520GLC

2

Install test adapter (1) in vehicle in place of expansion valve

 When installing test adapter (1), use new seal rings (2, 6). Moisten seal rings (2, 6) with compressor oil beforehand.



*BA83.30-P-1001-01C



*140589516300

3

Connect air conditioning system leak detector to test adapter (1)

Air conditioning system leak detector
gotis://E_83_04.0

4

Check evaporator for leaks

 Apply maximum pressure of 20 bar to evaporator. Constant pressure must be maintained for at least 10 min. Replace evaporator if findings are negative: 

Remove/install evaporator

AR83.30-P-5540GLC

5

Remove air conditioning system leak detector from test adapter (1)

Air conditioning system leak detector
gotis://E_83_04.0

6

Remove test adapter (1)



*140589516300

7

Install expansion valve

AR83.30-P-5520GLC

Number

Designation

Model
461

BA83.30-P-1001-01C

Nut on expansion valve

Nm

10