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Home >> Mercedes Benz >> 2012 >> GL350 >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Air Intake, Turbo Charging - 164 Chassis >> Testing & Repair >> Remove/install resonance intake manifold - AR09.20-P-1961GZA

Remove/install resonance intake manifold - AR09.20-P-1961GZA

ENGINE 272, 273 in MODEL 164, 251 

ENGINE 273 in MODEL 463 

Fig 1: Identifying Resonance Intake Manifold Remove/Install Components - Shown On Engine 272
G10115295Courtesy of MERCEDES-BENZ USA

Shown on engine 272 

Fig 2: Identifying Resonance Intake Manifold Remove/Install Components - Shown On Engine 272
G10115296Courtesy of MERCEDES-BENZ USA

Shown on engine 272 

MODIFICATION NOTES

20.8.09 Remove power electronics with power distributor Step 1.2 AR08.10-P-0011GZH
REMOVINGINSTALLING Remove/install     
DANGER Risk of explosion  caused by fuel igniting, risk of poisoning  caused by inhaling and swallowing fuel and risk of injury  to eyes and skin caused by contact with fuel No fire, sparks, open flames or smoking.
Only pour fuels into suitable and appropriately marked containers.
Wear protective clothing when handling fuel.
AS47.00-Z-0001-01A
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
1.1 Remove air filter housing Model 164 (except 164.195), 251 AR09.10-P-1150GZA 
Model 463 AR09.10-P-1150GZG
1.2 Remove power electronics with power distributor Model 164.195 AR08.10-P-0011GZH
2 Disconnect right connector (R) at ME-SFI [ME] control unit (N3/10) Except 164.195  
3 Disconnect electrical connectors (1a, 1b)    
4 Detach jack of electrical connector (1b) on fuel distributor (2) INSTALLATION IMPORTANT Install new cable ties.  
5 Detach electrical feed line (1c) from left control unit bracket (3l) INSTALLATION IMPORTANT Install new cable ties.  
6 Pull ME-SFI [ME] control unit (N3/10) out of left control unit bracket (3) and place to one side Except 164.195
IMPORTANT Do not disconnect left connector (L) at ME-SFI [ME] control unit (N3/10).
 
7 Remove hot film mass air flow sensor (B2/5) Model 164, 251 AR07.07-P-1453GZA
Model 463 AR07.07-P-1453GZG
8 Remove air duct housing (4)   AR09.20-P-0080GZA 
9 Disconnect hoses (5a, 5b) from crankcase ventilation system    
10 Remove right control unit holder TORQUE SPECIFICATION *BA07.08-P-1002-01A 
11 Detach feed duct (6a) from cylinder head cover and intake manifold (7) TORQUE SPECIFICATION *BA15.18-P-1001-01B 
TORQUE SPECIFICATION *BA15.18-P-1002-01B 
12 Detach feed duct (6b) from intake manifold (7) TORQUE SPECIFICATION *BA15.18-P-1001-01B 
13 Remove left rear engine lifting eye (8) TORQUE SPECIFICATION *BA01.30-P-1005-01O 
TORQUE SPECIFICATION *BA15.18-P-1003-01B 
14 Remove feed duct (6c) from cylinder head cover TORQUE SPECIFICATION *BA15.18-P-1002-01B 
15 Release and disconnect the electrical connectors on fuel injection valves (Y62)    
16 Unlock electrical connectors on position sensor for left intake manifold tumble flap (B28/9) and position sensor for right intake manifold tumble flap (B28/10) and disconnect    
17 Disconnect electrical connector (9)    
18 Release and disconnect the electrical connector at the throttle valve actuator (M16/6)    
19 Disconnect electrical connector from electrical air pump (M33)    
20 Reduce fuel pressure with the pressure hose via the service valve (10)   AR07.03-P-1460-01GZ
TORQUE SPECIFICATION *BA07.03-P-1004-01B 
SPECIAL TOOL Fig 3
21 Disconnect fuel line (11) from fuel distributor (2) IMPORTANT Catch escaping fuel with an absorbent rag!
IMPORTANT Seal connections immediately with stop plugs.
 
TORQUE SPECIFICATION *BA07.03-P-1001-01B 
SPECIAL TOOL Fig 4
22 Remove bolts (7a) TORQUE SPECIFICATION *BA09.20-P-1001-01N 
23 Raise intake manifold (7) at front and detach pneumatic lines (12) from the connection fittings on intake manifold (7)    
24 Take out intake manifold (7) INSTALLATION IMPORTANT Replace seals (7b).  
25 Cover openings in cylinder heads INSTALLATION NOTES Objects which reach the intake tract must be removed before assembling the intake manifold (7), otherwise engine damage can occur.  
26 Detach left control unit bracket (3l) from intake manifold (7) IMPORTANT Only when replacing intake manifold (7).  
TORQUE SPECIFICATION *BA07.08-P-1002-01A 
27 Detach fuel distributor (2) with fuel injection valves (Y62) from intake manifold (7) IMPORTANT Only when replacing intake manifold (7).  
TORQUE SPECIFICATION *BA07.03-P-1002-01B 
28 Detach throttle valve actuator (M16/6) from intake manifold (7) IMPORTANT Only when replacing intake manifold (7).  
TORQUE SPECIFICATION *BA07.61-P-1001-01D 
29 Detach position sensor for left intake manifold tumble flap (B28/9) and position sensor for right intake manifold tumble flap (B28/10) from intake manifold (7) IMPORTANT Only when replacing the intake manifold (7).  
TORQUE SPECIFICATION *BA09.20-P-1002-01N 
30 Install in the reverse order    
INSPECT Checking     
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
31 Carry out an engine test run and check intake tract and fuel system for leaks
CONTROL UNIT

Number Designation Engine 272 Engine 273
BA07.08-P-1002-01A Bolt, control unit bracket to resonance intake manifold Nm 8 8
ENGINE WIRING HARNESS

Number Designation Engine 272 Engine 273
BA15.18-P-1001-01B Bolt, feed duct to resonance intake manifold Nm 8 8
BA15.18-P-1002-01B Bolt, feed duct to cylinder head cover Nm 8 8
BA15.18-P-1003-01B Bolt, feed duct to engine lifting eye Nm 8 8
CYLINDER HEAD

Number Designation Engine 272 Engine 273
BA01.30-P-1005-01O Bolt, lifting eye to cylinder head M8 Nm 20 20
INJECTORS, INJECTION VALVES, LINES

Number Designation Engine 272 Engine 273
BA07.03-P-1001-01B Union nut, fuel line to fuel distributor Nm 20 20
BA07.03-P-1002-01B Bolt, fuel distributor to resonance intake manifold Nm 9 9
BA07.03-P-1004-01B Protective cap on service valve Plastic Nm 2 -
Metal Nm 15 -
INTAKE MANIFOLD

Number Designation Engine 272 Engine 273
BA09.20-P-1001-01N Bolt, resonance intake manifold to cylinder head Nm 9 9
BA09.20-P-1002-01N Bolt, tumble flap position sensor to resonance intake manifold Nm 6 6
ME-SFI [ME] GASOLINE INJECTION AND IGNITION SYSTEM

Number Designation Engine 272 Engine 273
BA07.61-P-1001-01D Bolt, throttle valve actuator to resonance intake manifold Nm 9 9
Fig 3: Identifying Pressure Hose (119 589 04 63 00)
G07449508Courtesy of MERCEDES-BENZ USA
Fig 4: Identifying Set Of Stop Plugs (129 589 00 91 00)
G07473018Courtesy of MERCEDES-BENZ USA