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Home >> Mercedes Benz >> 2007 >> C350 Base, Automatic >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Brakes -- Pneumatic System -- 203 Chassis >> Testing & Repair >> Remove/install vacuum pump - AR43.05-P-1320QB

Remove/install vacuum pump - AR43.05-P-1320QB

MODEL 203.052 /252 /752 with ENGINE 272.920 with TRANSMISSION 722.9 

MODEL 203.054 /254, 209.354 /454 with ENGINE 272.940 with TRANSMISSION 722.9 

Fig 1: Identifying Vacuum Pump Remove/Install Components
G04733580
REMOVINGINSTALLING Remove/install     
1 Open engine hood Model 203 AR88.40-P-1000P
    Model 209 AR88.40-P-1000Q
2 Remove air filter housing   AR09.10-P-1150QB
3 Remove hot film mass air flow sensor   AR07.07-P-1453QB
4 Remove air duct housing   AR09.20-P-0080QB
5 Detach vacuum hose (1) from vacuum line (2)    
6 Unscrew vacuum line (2) from resonance intake manifold TORQUE SPECIFICATION *BA43.05-P-1002-01A 
7 Detach plug (3) from heating system shutoff valve    
8 Detach vacuum hose (4) from vacuum line (2)    
9 Remove electrical wiring harness (5) from retaining clamp (6)    
10 Detach retaining clamp (6)    
11 Remove the vacuum line (7) from the vacuum pump (8) See ↓  
    Remove/install vacuum line of brake booster. AR43.10-P-0355QB 
12 Remove bolts (9) TORQUE SPECIFICATION *BA43.05-P-1001-01A 
13 Detach vacuum pump (8) backwards from cylinder head and remove IMPORTANTInstallation:  Clean sealing surfaces and sealing ring (10) Observe position of drive plate (8a).  
14 Install in the reverse order    
TORQUE SPECIFICATION VACUUM PUMP

Number Designation Model 203, 209 with engine 272
BA43.05-P-1001-01A Bolt, vacuum pump to cylinder head Nm 9
BA43.05-P-1002-01A Bolt, vacuum line to resonance intake manifold Nm 7