1 | Heat exchanger |
2 | Circuit |
3 | Clamp |
4 | Bolts |
5 | Electrical connector |
6 | Retaining plate |
7 | Nut |
8 | Mounting clip |
9 | Refrigerant line |
Y19/3 | Electric expansion valve (battery) |
P20.00-2441-06
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. | |
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. | |
Topical note | Notes on coolant | ||
Topical note | Information on preventing damage to electronic components due to electrostatic discharge | ||
| Remove/install | ||
1 | Remove transmitter key and mains plug | ||
2 | Drain air conditioning system | ||
Installation: Evacuate air conditioning and then fill it. | |||
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. | |
3 | Raise vehicle with vehicle lift | ||
4 | Remove front underfloor paneling | ||
5 | Clamp off coolant hoses on heat exchanger (1) with clamping devices (2) | Clamp | |
6 | Release clamps (3) with hose clamp pliers and slide towards rear on coolant hoses | Hose clamp pliers | |
7 | Detach coolant hoses from connection fitting for heat exchanger (1) | Collect escaping coolant in a suitable container and seal the connection fittings using suitable stop plugs. | |
Installation: Check clamps (3) and coolant hoses for damage, replace if necessary. | |||
8 | Remove retaining clip (8) on refrigerant line (9) | ||
9 | Unscrew nut (7) | Nut, refrigerant line to expansion valve | |
10 | Remove retaining plate (6) | ||
11 | Disconnect refrigerant lines (9) from electrical expansion valve (battery) (Y19/3) | ||
| Compressor oils (specification 362.0) | ||
| |||
Installation: Replace sealing rings at refrigerant lines (9) and wet during insertion with compressor oil. | |||
12 | Disconnect electrical connection (5) | ||
13 | Remove screw/bolts (4) | ||
14 | Remove heat exchanger (1) together with electrical expansion valve (battery) (Y19/3) | When replacing the heat exchanger (1) or the electrical expansion valve (battery) (Y19/3) ensure that only the complete device can be obtained as a replacement part. | |
15 | Install new desiccant cartridge | ||
16 | Install in the reverse order | ||
17 | Bleed cooling system with Star Diagnosis | ||
| |||
Pressure pump | |||
Filling device | |||
18 | Check refrigeration system for leaktightness |
450 589 07 21 00
Pressure pump
000 589 54 37 00
Clamp
450 589 20 63 00
Filling device
003 589 03 37 00
Hose clamp pliers
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