LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2007 >> S550 Base >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Climate Control -- Testing & Repair -- S-Class (221) >> Testing & Repair >> Remove/install expansion valve - AR83.30-P-5520SX

Remove/install expansion valve - AR83.30-P-5520SX

MODEL 216.3, 221.0 /1 

Fig 1: Identifying Expansion Valve Remove/Install Components
G07591082Courtesy of MERCEDES-BENZ USA

Shown on model 221 

REMOVINGINSTALLING Remove/install    
DANGER Risk of injury  to skin and eyes caused by scalding from contact with hot coolant spray. Risk of poisoning  caused by 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. Wear protective gloves, protective clothing and safety glasses. AS20.00-Z-0001-01A
NOTES Notes on coolant   AH20.00-N-2080-01A
1 Drain air conditioning system IMPORTANTInstallation:  Evacuate, refill air conditioning and check for proper operation and leaktightness. AR83.30-P-1760SX 
2 Reduce pressure in cooling system IMPORTANT To do this, carefully open expansion reservoir cover and close again.  
3 Remove cover above brake booster IMPORTANT Only with installation  
4 Detach water collector (2) from the partition wall, press upward and affix    
5 Unclip cable tie (3) and expose electrical wiring harness    
6 Disconnect washer fluid line at expansion valve (1) and set aside    
7 Cover working area at hot water hoses (5) with rags    
8 Clamp off hot water hoses (5) using a suitable tool and detach from connection lines to heat exchanger    
9 Seal connection lines to heat exchanger    
10 Detach refrigerant line to high-voltage battery from expansion valve (1) Model 221.095 / 195
IMPORTANTInstallation:  Replace sealing ring of refrigerant line and wet with compressor oil.
 
11 Disconnect low-pressure line (8) and close IMPORTANTInstallation:  Renew sealing ring of low-pressure line (8) and moisten with compressor oil.  
    TORQUE SPECIFICATION *BA83.30-P-1001-01K 
12 Disconnect high pressure line (10) and close IMPORTANTInstallation:  Renew sealing ring of high-pressure line (10) and moisten with compressor oil.  
    TORQUE SPECIFICATION *BA83.30-P-1002-01K 
13 Remove screws (11), remove expansion valve (1) and close connection lines (13) NOTESInstallation:  Alternately turn in screws (11) in order to prevent the expansion valve (1) from canting.  
    IMPORTANTInstallation:  Install new sealing rings (12) and moisten with compressor oil. Moisten thread of bolts (11) with compressor oil.  
    TORQUE SPECIFICATION *BA83.30-P-1003-01K 
14 Install in the reverse order    
15 Pour in coolant and bleed cooling system Except engine 642 AR20.00-P-1142-04A
    Engine 642 AR20.00-P-1142-04SXI
    FLUID SPECIFICATION Cooling system on vehicles with engine 642 *BF20.00-P-1001-02W
REFER TO CAPACITIES & SPECIFICATIONS Coolant specifications Sheet 310.1 BB00.40-P-0310-01A
REFER TO CAPACITIES & SPECIFICATIONS Anticorrosion/antifreeze agents (Sheet 325.0) Sheet 325.0 BB00.40-P-0325-00A
    SPECIAL TOOL Fig 2
    SPECIAL TOOL Fig 3
NOTES Notes on coolant level   AH20.00-P-1142-01V
DANGER Risk of accident  caused by vehicle starting off by itself when engine is running. Risk of injury  caused by contusions and burns during starting procedure or when working near the engine as it is running Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.
AS00.00-Z-0005-01A
16 Conduct engine test run and inspect cooling system for leaks Except engine 629 AR20.00-P-1010SX
    IMPORTANT Engine 629  
    IMPORTANT Carry out visual inspection. AR20.00-P-1010SXD
AIR CONDITIONING

Number Designation Model 221 Model 216
BA83.30-P-1001-01K Nut for low-pressure line to high-pressure line Nm 8 8
BA83.30-P-1002-01K Nut for high-pressure line to expansion valve Nm 8 8
BA83.30-P-1003-01K Bolt, expansion valve to retaining plate Nm 5 5
COOLING SYSTEM

Number Designation Engine 642 in model 203, 209, 211, 219, 221
BF20.00-P-1001-02W Cooling system Workshop replacement quantity Liters 7.5
Antifreeze/water Up to -37°C 50/50
up to -45°C 55/45
Service specifications Sheet BB00.40-P-0310-01A
Sheet BB00.40-P-0325-00A
Fig 2: Identifying Test Cap (210 589 00 91 00)
G07591083Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Vacuum-Type Cooling System Filler (285 589 00 21 00)
G07591084Courtesy of MERCEDES-BENZ USA