Without VDC Models: Disassembly

WARNING: This page is about a different car, the 2006 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

Lift up the tabs on the stopper cap and remove it from the master cylinder using a suitable tool as shown. The piston inside the master cylinder might pop out when this is done, so hold the stopper cap down at the same time.

Fig 1: Lifting Up Tabs On Stopper Cap
Courtesy of NISSAN MOTOR CO., U.S.A.
Place the side flange of cylinder body with chamfering around the pin insertion hole facing up, and firmly set master cylinder assembly in a vise.
CAUTION:
- When setting the master cylinder assembly with the vise, be sure not to over-tighten.
- When securing with a vise, use copper plates or cloth to protect the flange.
  
  Fig 2: Identifying Side Flange Of Cylinder Body In Vise
  Courtesy of NISSAN MOTOR CO., U.S.A.
Remove pin on the reservoir tank, using a suitable tool [commercial service tool: diameter approx. 4 mm (0.16 in)].
Remove master cylinder assembly from the vise.
Remove reservoir tank and grommets from cylinder body.

Fig 3: Removing/Installing Pin On The Reservoir Tank, Using A Suitable Tool
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove brake fluid level switch from reservoir tank, if necessary.
Push in the piston and remove the piston stopper from the cylinder body using a suitable tool.

Fig 4: Removing Brake Fluid Level Switch From Reservoir Tank
Courtesy of NISSAN MOTOR CO., U.S.A.
Carefully pull the primary piston assembly straight out to prevent cylinder inner wall from being damaged using a suitable tool.

Fig 5: Removing/Installing Primary Piston Snap Ring
Courtesy of NISSAN MOTOR CO., U.S.A.
Tap flange using a soft block such as wood, and carefully pull the secondary piston assembly straight out to prevent cylinder inner wall from being damaged.

Fig 6: Taping Flange Using A Soft Block Such As Wood
Courtesy of NISSAN MOTOR CO., U.S.A.