Removing and Installing Pre-Boost Pump DSC3

Removing and installing pre-boost pump DSC3

Note:
Bleed the brake system after completing the work.
Draw brake fluid out of expansion tank.
Remove end fire wall.





Remove seal (1) towards top.





Remove vacuum line and B + line from assembly compartment partition wall.
Turn seals (1) through 90° and thus unlock. Remove assembly compartment partition wall (2) towards top.
Installation: When installing the vacuum line and B + line, ensure rubber grommets are correctly seated.





Release union nuts (1 and 2), unlock and disconnect plug connection (3).
Installation:
Pipe, (1).
Brake hose couplings (Thread M10X1) 17-19 Nm
Brake hose couplings (Thread M12x1) 17-19 Nm
Intake pipe (2).
Banjo bolt 8 Nm





Unlock plug (1) and remove from retainer.
Remove pre-boost pump (4) in direction 2 from rubber mount.
Remove pre-boost pump (4) in direction 3 from bracket (5).





Installation: Check rubber mount (1), replace if necessary.