Suzuki Wagon R Manual page 261

5A-8 BRAKES PIPE / HOSE / MASTER CYLINDER
INSTALLATION
1) For vehicle with ABS, install pin washer retainer (1) to secondary
reservoir port of master cylinder (2) if removed.
2) When using new grommets, lubricate them with the same fluid
as the one to fill reservoir with. Then fit grommets (3) to master
cylinder. Grommets must be seated in place.
3) Install reservoir (4) and drive in reservoir pin (5).
Drive in reservoir pin till both of its ends at the right and left of
reservoir becomes the same length.
Special Tool
(A): 09922-85811
4) Connect reservoir lead wire.
5) Fill reservoir with specified fluid and bleed air from brake system.
6) Upon completion of installation, check for fluid leakage.