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Home >> Mercedes Benz >> 2012 >> C350 Base >> Repair and Diagnosis >> Engine Mechanical >> Blowers, Superchargers & Turbochargers >> Air Intake, Turbocharging - 204 C Class >> Testing & Repair >> Remove/install intake manifold - AR09.20-P-1310EVO

Remove/install intake manifold - AR09.20-P-1310EVO

ENGINE 271.8 in MODEL 172, 204, 207, 212 

Shown on model 204 

Fig 1: Identifying Intake Manifold Components - Shown On Model 204 (1 Of 2)
G10105713Courtesy of MERCEDES-BENZ USA
Fig 2: Identifying Intake Manifold Components - Shown On Model 204 (2 Of 2)
G10105714Courtesy of MERCEDES-BENZ USA

Shown on model 204 

REMOVINGINSTALLING Remove/install     
1 Remove engine cover IMPORTANT Grasp with both hands and pry off. Check gasket, replace if necessary.
INSTALLATION IMPORTANT When putting the engine cover in place, ensure that the seal is correctly seated at the oil filler neck. The seal should not be pressed down by the engine cover, but must lie against the engine cover.
 
2 Remove air filter housing   AR09.10-P-1150EVO 
3 Disconnect connectors for electrical lines (3) to throttle valve actuator (M16/6), actuator motor (M59), pressure sensor (B28/7) and temperature sensor (B17/8)    
4 Unclip electrical wiring harness (7) on intake manifold (1)    
5 Detach charge air hose (8) on throttle valve actuator (M16/6)   AR09.41-P-1311-01AL
6 Remove line (4) from intake manifold (1) INSTALLATION IMPORTANT Fit a new hose clamp.  
7 Detach hose from sound generator on intake manifold (1) at the front    
8 Remove poly-V belt If necessary  
AR13.20-P-0001CW
9 Loosen power steering pump and put to one side with lines connected If necessary  
AR46.30-P-0500EVO
10 Detach hose (6) from combination valve If installed  
11 Remove screw/bolts (2) on intake manifold (1) TORQUE SPECIFICATION Bolt, intake manifold to cylinder head *BA09.20-P-1001-01I 
12 Detach purge line from vent valve on underside of intake pipe    
13 Remove intake manifold (1) upwards INSTALLATION IMPORTANT Pay attention to correct routing of the hose (6).  
14 Remove throttle valve actuator (M16/6), actuator motor (M59), pressure sensor (B28/7) and temperature sensor (B17/8) from intake manifold (1) When replacing intake manifold (1)  
15 Install in the reverse order    
DANGER 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 closed and snug-fitting work clothes. Do not touch hot or rotating parts. AS00.00-Z-0005-01A
16 Carry out an engine test run and check intake tract and fuel system for leaks    
INTAKE MANIFOLD

Number Designation ENGINE 271
BA09.20-P-1001-01I Bolt, intake manifold to cylinder head M7 Nm 14