S83.30-A018-79
Shown with engine 780.701 except code HZ7 (Semi-automatically controlled air conditioning, TEMPMATIC in rear) |
1 | Shutoff valve | 5 | Nut | |
2 | Refrigerant line | 6 | Nut | |
3 | Refrigerant line | 7 | Electrical connector | |
4 | Screw |
Danger | Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC) | Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines. | |
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. | |
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.Typ 447 mit Motor 780.701 | |
Topical note | General information on vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system as well as personal protective equipment | ||
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
Topical note | Protect air conditioning circuit and components from moisture when carrying out repair work | ||
Notes on handling refrigerant R134a | Typ 447 mit Motor 780.701 | ||
Notes on handling refrigerant R1234yf | |||
| Check | ||
1 | Read out Vehicle Documentation (VeDoc) and check code entries. | The shutoff valve (1) can be installed in the "NO" version or in the "NC" version. | |
If code OB0 (NO SHUTOFF VALVE) is present in VeDoc, | |||
| |||
remove code OB0 (NO SHUTOFF VALVE). | |||
Codes can only be removed in VeDoc by a user with write permission. | |||
| Remove/install | ||
2 | Empty refrigerant circuit. |
| |
Model 447 with engine 780.701/702 with code HX1 (Refrigerant R-1234yf) | |||
3 | Disconnect electrical connector (7) from shutoff valve (1). | ||
4 | Unscrew bolt (4). | Installation: Align holder and tighten using screw (4). | |
5 | Remove nut (6). | Nut, refrigerant line to shutoff valve for refrigerant circuit in vehicle interior | |
6 | Remove refrigerant line (3) from shutoff valve (1). | ||
| Compressor oils (specification 362.1) | ||
Plug openings. | |||
Installation: Replace sealing ring and coat with compressor oil. | |||
Record plug | |||
7 | Remove nut (5). | Nut, refrigerant line to shutoff valve for refrigerant circuit in vehicle interior | |
8 | Detach shutoff valve (1) from refrigerant line (2) and remove. | ||
| Compressor oils (specification 362.1) | ||
Plug openings. | |||
Installation: Replace sealing ring and coat with compressor oil. | |||
Record plug | |||
9 | Replace shutoff valve (1). | If code OB0 (NO SHUTOFF VALVE) was present in VeDoc. | |
The shutoff valve (1) in version "NO" must be replaced by a shutoff valve (1) in version "NC". | |||
10 | Install in the reverse order. |
129 589 00 91 00
Record plug