1 | Coolant hose |
2 | Radiator |
3 | Coolant hose |
4 | Condenser |
S20.20-4549-05
5 | Refrigerant line |
6 | Screw |
7 | Sealing ring |
8 | Hose |
9 | Bracket |
10 | Refrigerant line |
11 | Screw |
12 | Sealing ring |
13 | Hose |
14 | Bracket |
15 | Bolts |
16 | Electrical connector |
S20.20-4550-06
4 | Condenser |
17 | Screw |
18 | Cable tie |
19 | Retaining clamp |
20 | Guides |
S20.20-4551-06
Danger | Risk of death caused by vehicle slipping or toppling off of the lifting platform. | Align vehicle between vehicle lift columns and position the four support plates at the vehicle lift support points specified by the vehicle manufacturer. | |
Warning | 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. | |
Warning | Risk of injury to skin and eyes suffering scalding from contact with hot coolantspray. Risk of poisoning from swallowing coolant. | Do not open cooling system unless coolant temperature is below 90 °C. Open cap slowly and release the pressure. Do not pour coolant into beverage containers. | |
Topical note | Notes on coolant | ||
Topical note | Protect air conditioning circuit and components from moisture when carrying out repair work | ||
Topical note | Procedure for a damaged or leaky air conditioning system | ||
Notes on coolant level | |||
Notes on handling refrigerant R134a | |||
| Remove/install | ||
1 | Remove fan shroud | ||
2 | Drain off coolant | ||
3 | Remove coolant hose (1) from cooler (2) | Hose clamp pliers | |
4 | Remove coolant hose (3) from radiator (2) | Hose clamp pliers | |
5 | Drain air conditioning system | ||
6 | Detach refrigerant line (5) | ||
| Compressor oils (specification 362.1) | ||
| |||
To do this, remove bolt (6). | |||
Installation: Replace sealing ring (7) and wet with compressor oil. | |||
Screw, refrigerant line to refrigerant pressure and temperature sensor at condenser | |||
Record plug | |||
7 | Remove hose (8) | For this purpose, unclip hose (8) from bracket (9). | |
8 | Remove refrigerant line (10) | ||
| Compressor oils (specification 362.1) | ||
| |||
To do so, remove screw/bolt (11). | |||
Installation: Replace sealing ring (12) and wet with compressor oil. | |||
Screw, refrigerant line to refrigerant line front connecting point | |||
Record plug | |||
9 | Remove hose (13) | For this purpose, unclip hose (13) from bracket (14). | |
10 | Remove screws (15) | Bolt, cooler to top front cross member for hood catch | |
11 | Lift cooler (2) with condenser (4) and tilt toward rear | ||
12 | Disconnect electrical connector (16) | ||
13 | Remove cooler (2) with condenser (4) in upward direction | ||
14 | Remove screw/bolt (17) | When replacing cooler (2). | |
M6 | |||
15 | Disconnect cable tie (18) | When replacing cooler (2). | |
Installation: Replace cable tie (18). | |||
16 | Remove condenser (4) from cooler (2) | When replacing cooler (2). | |
| |||
Press retaining clamp (19) inward and remove condenser (4) in upward direction (arrow) from guides (20). | |||
17 | Install in the reverse order | ||
| Check | ||
Warning | 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. | |
18 | Check for leak tightness with engine running | Visual inspection only. |
003 589 03 37 00
Hose clamp pliers
129 589 00 91 00
Record plug