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Home >> Mercedes Benz >> 1993 >> 300SL Automatic >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- 129 Chassis >> Testing & Repair >> Correcting oil level in air conditioning following repair or slow refrigerant loss - AR83.30-P-5251C

Correcting oil level in air conditioning following repair or slow refrigerant loss - AR83.30-P-5251C

MODEL 129 with CODE (580) Air conditioning or, for USA, Tempmatic with CODE (581a) Air conditioning (automatic) 

A/C compressor 10PA17 

NOTES Perform work quickly, compressor oil is hydroscopic
When evacuating refrigerant add the quantity of compressor oil removed from the refrigerant circuit when recharging the air conditioner.
   
1 In the event of refrigerant loss < 400 g (no leakage noted) do not add compressor oil ↓    
  Perform leakage test IMPORTANT See SI83/85  
2 In the event of refrigerant loss > 400 g (leakage noted) add new compressor oil and also ↓ FLUID SPECIFICATION *BF83.55-P-1009-01A 
  replace fluid reservoir with air conditioning or for USA with Tempmatic Code 580 ra83001290540x 
    with air conditioning (automatic) code (581a) AR83.30-P-6520C 
3 Switch on air conditioning and allow engine to idle for approx. 4 minutes IMPORTANT Allow temperature dials to catch in blue field or set automatic air conditioning to " Lo".
Blower to max.
 
4 Check air conditioning for proper function IMPORTANT Air outlet temperature at center nozzle should not be less than approx. + 5°C, if necessary ↓
replace evaporator temperature sensor (B10/6)
 
FLUID SPECIFICATION A/C COMPRESSOR

Number Designation A/C compressor 10PA17 refrigerant R12 in model 129 A/C compressor 10PA17 refrigerant R134a in model 129
BF83.55-P-1009-01A Additional oil quantity when leakage is noted Compressor oil cm3 20 20
Specifications for service products Page BB00.40-P-0362-00A BB00.40-P-0362-00A