1 | Refrigerant compressor |
2 | Screw |
3 | Screw |
4 | Electrical connector |
5 | High pressure pipe |
6 | Screw |
7 | Low pressure pipe |
8 | Screw |
9 | Screw |
P83.55-2333-06
Danger | 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. | |
Topical note | Protect air conditioning circuit and components from moisture when carrying out repair work | ||
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Procedure for a damaged or leaky air conditioning system | ||
Notes on handling refrigerant R1234yf | |||
| Remove | ||
1 | Discharge air conditioning system. |
| |
Engine 264 in model 213 | |||
Engine 264 in model 257 | |||
2 | Remove engine air intake duct upstream of air filter. | ||
3 | Remove fan unit. |
| |
Engine 264 in model 213, 238 | |||
4 | Mount protective plate on cooler. | ||
| |||
5 | Remove poly-V-belt. |
| |
Engine 264 in model 213, 238, 257 | |||
6 | Release and disconnect electrical connector (4). | ||
7 | Remove screw (8). | ||
8 | Remove low-pressure line (7) and seal openings with suitable stop plugs. | Record plug | |
9 | Remove screw (6). | ||
10 | Remove high-pressure line (5) and seal openings with suitable stop plugs. | Record plug | |
11 | Remove screws (2, 9). | ||
12 | Remove screw (3) and lift out refrigerant compressor (1). | ||
| Install | ||
13 | Position refrigerant compressor (1) on timing case cover and tighten screw (3) slightly by hand. | ||
14 | Tighten screws (2, 3, 9). | Bolt, refrigerant compressor to timing case/engine carrier | |
15 | Remove stop plug, attach high-pressure line (5) with new sealing ring and tighten screw (6). | Bolt, refrigerant line to refrigerant compressor | |
16 | Remove stop plug, attach low-pressure line (7) with new sealing ring and tighten screw (8). | Bolt, refrigerant line to refrigerant compressor | |
17 | Connect and lock electrical connector (4). | ||
18 | Install poly-V-belt. |
| |
Engine 264 in model 213, 238, 257 | |||
19 | Remove protective plate from radiator. | ||
| |||
20 | Install fan unit. |
| |
Engine 264 in model 213, 238 | |||
21 | Install engine air intake duct upstream of air filter. | ||
22 | Fill air conditioning. |
| |
Engine 264 in model 213 | |||
Engine 264 in model 257 | |||
23 | Perform commissioning of refrigerant compressor (1) using vehicle diagnosis system. | When replacing the refrigerant compressor (1). | |
| Engine 264 in model 238 | ||
| Engine 264 in model 257 | ||
| Engine 264 in model 213 | ||
Menu item: Control unit adaptations. | |||
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. | |
24 | Perform engine test run and check air conditioning system for proper operation. |
129 589 00 91 00
Record plug