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Home >> Smart >> 2012 >> Fortwo Pure >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Brakes - Pneumatic System - 451 Chassis >> Testing & Repair >> Remove/install vacuum pump control unit - AR43.05-P-1323MEV

Remove/install vacuum pump control unit - AR43.05-P-1323MEV

MODEL 451.391/491 with ENGINE 780.009 

Fig 1: Identifying Vacuum Pump Control Unit Remove/Install Components
G10978486DANGERNOTESNOTESREMOVINGINSTALLINGINSTALLATION IMPORTANTIMPORTANTREFER TO MAINTENANCECourtesy of MERCEDES-BENZ USA
DANGER Risk of death  when touching components on vehicles with high-voltage on-board electrical system Do not touch components and open lines of the high-voltage on-board electrical system. Persons who wear electronic implants (e.g. cardiac pacemakers), must not  carry out any work on high-voltage on-board electrical systems. AS54.00-Z-0001-01A
NOTES Note on the voltage on-board electrical system   AH54.00-P-0010-01A
NOTES Information on preventing damage to electronic components due to electrostatic discharge   AH54.00-P-0001-01A
REMOVINGINSTALLING Remove/install     
1 Remove vehicle key and mains plug    
2 Remove interior flap above engine   AR88.40-P-1100-03MCC
3 Remove screws/bolts (1)    
4 Separate electrical connectors (2)    
5 Cut cable tie (3) INSTALLATION IMPORTANT : Replace cable tie (3).  
6 Detach vacuum line (4) on brake booster vacuum pump control unit (N65/3) and remove brake booster vacuum pump control unit (N65/3) IMPORTANT Check vacuum line (4) for damage, replace if necessary.  
7 Install in the reverse order    
8 Carry out brake test on the test stand    
REFER TO MAINTENANCE     AP42.00-P-4290MCC