Removing power brake booster

WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Power Brake Booster Pushrod, Locking Clip, And Nuts

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove:

locking clip to power brake booster pushrod.
the four nuts holding the power brake booster to the firewall.
power brake booster.

NOTE: Note the seal between the power brake booster and firewall.

Fig 2: Checking Power Brake Booster Pushrod Seat

Courtesy of VOLVO CARS OF NORTH AMERICA.

NOTE: Check car chassis number.

USA/Canada 4-door up to chassis no. 60654.
USA/Canada 5-door up to chassis no. 258.
Europe 4-door up to chassis no. 76400.
Europe 5-door up to chassis no. 2800.

In cars with chassis number lower than above:

Check that power brake booster pushrod seat in master cylinder (see illustration) has not stuck to end of power brake booster pushrod.
If seat has stuck, replace master cylinder. Do not put seat back into master cylinder.

In cars with chassis number higher than above:

Seats are not supplied as a separate replacement part. This applies to all master cylinders as replacement parts.