Remove/Install Mechanical Refrigerant Compressor - AR83.55-P-5310MFG
Model 118, 177, 247 with engine 139
| Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures | 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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated. Model 118, 177, 247 with engine 139 with code 2U8 (Alternative refrigerant) |
AS83.00-Z-0007-01A | |
| Risk of injury . Skin or eye injuries may result when handling hot or glowing objects. | Wear protective gloves, protective clothing and safety glasses, if necessary. | AS00.00-Z-0002-01A | |
| Risk of poisoning caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts | 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 rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated. Model 118, 177, 247 with engine 139 except code 2U8 (Alternative refrigerant) |
AS83.00-Z-0006-01A | |
| Risk of injury caused by scraping or cutting body parts on sharp vehicle parts | Always wear protective gloves when working on or near sharp and non-deburred vehicle parts. Deburr repair panels. |
AS00.00-Z-0017-01A | |
| Notice | Information on preventing damage to electronic components due to electrostatic discharge | AH54.00-P-0001-01A | |
| Notice | Notes on avoiding damage through contamination and foreign objects | AH00.00-P-5000-01A | |
| Notice | Procedure for a damaged or leaky air conditioning system | AH83.30-P-0004-01KOA | |
| Notes on handling refrigerant R134a | Model 118, 177, 247 with engine 139 except code 2U8 (Alternative refrigerant) |
AH83.30-P-0003-01KOA | |
| Notes on safety-relevant components | AH00.00-Z-0019-01A | ||
| Notes on handling refrigerant R1234yf | Model 118, 177, 247 with engine 139 with code 2U8 (Alternative refrigerant) |
AH83.30-P-0003-02A | |
| Remove/install | |||
| 1 | Remove fan unit. | AR20.40-P-5050MFG | |
| 2 | Remove poly-V-belt. | AR13.22-P-1202MFG | |
| 3 | Remove wiring harness from alternator (G2) and place outside working area. | AR15.18-P-0016MFG | |
| 4 | Release electrical connector (1) and disconnect. | ||
| 5 | Tighten screws (2). | *BA83.55-P-1002-01BA | |
| 6 | Remove refrigerant lines (3) from refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7) and seal exposed connections with suitable stop plugs. | ||
| Compressor oils (specification 362.1) | BB00.40-P-0362-01A | ||
| Fig 2 | |||
| Fig 3 | |||
| 7 | Unscrew screws (4) and remove refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7). | *BA83.55-P-1001-01BA | |
| 8 | Flush air conditioning system. | When replacing the refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7). Model 118.353/354/653/654, 177.053/054, 247.753/754 |
AR83.30-P-1785MFG |
| 9 | Remove receiver drier. | If one of the following conditions is met: The vehicle is older than 5 years; the refrigerant is soiled (dark gray to black color); the refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7) is blocked; or the refrigerant circuit was damaged (e.g. following an accident). |
AR83.30-P-6521MFG |
| 10 | Install in the reverse order. | ||
| Concluding tasks | |||
| 11 | Commission refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7). | When replacing the refrigerant compressor (A9) or refrigerant compressor with magnetic clutch (A9/7). | |
| AD00.00-P-2000-06MFA | |||
| Risk of burn injuries , suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust. | Wear protective clothing and safety glasses. Use the extraction system. Move people out of the danger zone. | AS49.00-Z-0001-01A | |
| Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | AS00.00-Z-0005-01A | |
| 12 | Carry out engine test run, checking air conditioning system for proper operation and leak tightness while doing so. | ||
| 13 | Install lower engine compartment lining. | AR61.20-P-1105MFR |
REFRIGERANT COMPRESSOR
| Number | Designation | Engine 139 | |
|---|---|---|---|
| BA83.55-P-1001-01BA | Screw/bolt, A/C compressor to bracket | Nm | 20 |
REFRIGERANT COMPRESSOR
| Number | Designation | Engine 139 | |
|---|---|---|---|
| BA83.55-P-1002-01BA | Screw/bolt, refrigerant lines to A/C compressor | Nm | 20 |