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Remove/install pressure transducer for boost pressure aneroid capsule - AR09.40-P-1003CD

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ENGINE 651 in MODEL 172, 204, 207, 212, 218, 221 

Shown on model 172 with engine 651 

Fig 1: Pressure Transducer For Boost Pressure Aneroid Capsule Remove/Install Components
G09974870Courtesy of MERCEDES-BENZ USA
REMOVINGINSTALLING Remove/install     
1 Remove bottom sections of soundproofing ENGINE 651 in MODEL 221 without CODE Z07 (Top protection) AR61.20-P-1105SX
    ENGINE 651 in MODEL 172.4 AR94.30-P-5300W
    ENGINE 651 in MODEL 204.0/2/3, 207, 212, 218 AR94.30-P-5300EW
    ENGINE 651 in MODEL 204.9 AR61.20-P-1105CY
2 Disconnect electrical connection (1) from boost pressure control flap pressure transducer (Y93)    
3 Detach vacuum hoses (2) INSTALLATION IMPORTANT The vacuum hose marked in color comes on the center connector.  
4 Release upper screw/bolt (3)    
5 Remove screw/bolt and boost pressure control flap pressure transducer (Y93) upwards    
6 Install in the reverse order