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Home >> Mercedes Benz >> 2016 >> GLC300 Base >> Repair and Diagnosis >> Suspension >> Suspension Control Systems >> Suspension - 253 Chassis >> Testing & Repair >> Remove/Install Air Suspension Valve Unit - AR32.22-P-2015LW

Remove/Install Air Suspension Valve Unit - AR32.22-P-2015LW

Model 205 with code 489 (AIRMATIC) 

Model 213.0 (except 213.088/089), 213.1 with code 489 (AIRMATIC) 

Model 213.2 (except 213.288/289) 

Model 253 with code 489 (AIR BODY CONTROL) 

G12936168Courtesy of MERCEDES-BENZ USA

Shown on model 205 with code 489 (AIRmatic) 

  Notes on level control Model 213.2 (except 213.264/288/289)
except code 489 (AIRMATIC)
AH32.22-P-1001-02LWT
  Notes on AIRmatic Model 205
with code 489 (AIRMATIC)
Model 213.0 (except 213.088/089), 213.1, 213.2 (except 213.288/289)
with code 489 (AIRMATIC)
Model 253
with code 489 (AIR BODY CONTROL)
AH32.22-P-1000-02LW 
REMOVING Remove     
1 Release pressure from air suspension using diagnostic system    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
2.1 Remove engine compartment paneling at front Model 205
with code 489 (AIRMATIC)
Model 253
with code 489 (AIR BODY CONTROL)
 
      AR61.20-P-1105LW
2.2 Remove front left engine compartment lining Model 213.0 (except 213.088/089), 213.1 with code 489 (AIRMATIC)
Model 213.2 (except 213.288/289)
 
      AR61.20-P-1105LWE
3 Remove radiator low-temperature circuit in wheel arch at left Model 205.086/087/286/287/386/387/486/487 with code 489 (AIRMATIC)  
      AR20.20-P-3876MNA
4 Remove expansion rivet (1) and release fender liner at front left on bumper Model 205 (except 205.086/087/286/287/386/387/486/487)
with code 489 (AIRMATIC) Model 253
with code 489 (AIR BODY CONTROL)
 
5 Release and disconnect electrical connector (2)    
6 Mark positions of pressure line connections (3) relative to valve unit (6)    
7 Unscrew pressure line connections (3) from valve unit (6) and seal openings with suitable stop plugs SPECIAL TOOL Record plug Fig 2
8 Unscrew bolts (4) and remove valve unit (6)    
INSPECT Check     
9 Check elastomer bearings (5) for hardening and damage If there are problems

Replace corresponding elastomer bearings (5).
 
INSTALLING Install     
10 Position valve unit (6) and tighten bolts (4) TORQUE SPECIFICATION Model 205
with code 489 (AIRMATIC)
*BA32.22-P-1003-03G 
    Model 253
with code 489 (AIR BODY CONTROL) Bolt, valve unit to bracket for compressor unit
 
    TORQUE SPECIFICATION Model 213.0 (except 213.088/089), 213.1 with code 489 (AIRMATIC)
Model 213.2 (except 213.288/289) Bolt, valve unit to bracket for compressor unit
BA32.22-P-1003-03H
11 Remove all stop plugs    
12 Mount pressure line connections (3) to valve unit (6) NOTES
The thread on the pressure line connections (3) may not be damaged.
Otherwise, leaks will occur.
IMPORTANT Pay attention to marking.
 
    TORQUE SPECIFICATION Model 205
with code 489 (AIRMATIC)
Model 253
with code 489 (AIR BODY CONTROL) Pressure line to compressor/valve unit (P)
*BA32.22-P-1004-03G 
    TORQUE SPECIFICATION Model 213.0 (except 213.088/089), 213.1 with code 489 (AIRMATIC)
Model 213.2 (except 213.288/289) Pressure line to compressor/valve unit (P)
BA32.22-P-1004-03H
    SPECIAL TOOL Torque tool set Fig 4
    SPECIAL TOOL Torque wrench Fig 1
    If the thread is damaged

Repair pressure line connections (3).
 
      AR32.22-P-2001-01LW 
    SPECIAL TOOL Knife Fig 3
13 Connect and lock electrical connectors (2)    
14 Install radiator low-temperature circuit in wheel arch at left Model 205.086/087/286/287/386/387/486/487 with code 489 (AIRMATIC)
IMPORTANT Only install lower engine compartment paneling after leak test.
AR20.20-P-3876MNA
15 Build up pressure of air suspension using vehicle diagnosis system    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
INSPECT Check     
16 Read out and erase fault memory using the diagnostic system    
REFER TO SELF-DIAGNOSTIC SYSTEMS     AD00.00-P-2000-04B
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 buttoned-up and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
17 Perform an engine test run and check air suspension for proper operation    
18 Check valve unit (6) for leak tightness Model 205 with code 489 (AIRMATIC) AR32.22-P-8100LW 
    Model 213.0 (except 213.088/089), 213.1 with code 489 (AIRMATIC)
Model 213.2 (except 213.288/289) with code 489 (AIRMATIC)
Model 253 with code 489 (AIR BODY CONTROL)
 
    Model 213.2 (except 213.264/288/289) except code 489 (AIRMATIC) AR32.33-P-0021LWT
INSTALLING Install     
19 Mount fender liner at front left onto bumper and install expansion rivet (1) Model 205 (except 205.086/087/286/287/386/387/486/487)
with code 489 (AIRMATIC)
Model 253
with code 489 (AIR BODY CONTROL)
 
20.1 Install front engine compartment lining at left Model 213.0 (except 213.088/089), 213.1 with code 489 (AIRMATIC)
Model 213.2 (except 213.288/289)
AR61.20-P-1105LWE
20.2 Install front engine compartment paneling Model 205
with code 489 (AIRMATIC)
Model 253
with code 489 (AIR BODY CONTROL)
 
      AR61.20-P-1105LW
AIR SUSPENSION

Number Designation Model 205 Model 253
BA32.22-P-1003-03G Bolt, valve unit to bracket for compressor unit Nm 5 5
AIR SUSPENSION

Number Designation Model 213
BA32.22-P-1003-03H Bolt, valve unit to bracket for compressor unit Nm 5
AIR SUSPENSION

Number Designation Model 205 Model 253
BA32.22-P-1004-03G Pressure line to compressor/valve unit (P) Nm 3, 5 3, 5
AIR SUSPENSION

Number Designation Model 213
BA32.22-P-1004-03H Pressure line to compressor/valve unit (P) Nm 3, 5
Fig 1: Identifying Torque Wrench (001 589 86 21 00)
G07304957Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Record Plug (129 589 00 91 00)
G09975019Courtesy of MERCEDES-BENZ USA
Fig 3: Identifying Knife (000 589 12 28 00)
G09980728Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Torque Tool Set (003 589 05 09 00)
G07687787Courtesy of MERCEDES-BENZ USA