Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT AND ADJUST BRAKE BOOSTER PUSH ROD

NOTICE:

Make the adjustment with no vacuum in the brake booster assembly. (Depress the brake pedal several times with the engine stopped.)

HINT:

  • Adjustment of the brake booster push rod is required when the brake master cylinder sub-assembly is replaced with a new one.
  • Adjustment is not necessary when the removed brake master cylinder sub-assembly is reused and the brake booster assembly is replaced with a new one.

(a) Apply chalk to the tip of the accessory tool.

HINT:

The accessory tool is included with a new brake master cylinder sub-assembly.

(b) Place the accessory tool on the brake booster assembly.

*a

Accessory Tool

*b

Brake Booster Push Rod

(c) Measure the clearance between the brake booster push rod and accessory tool.

Standard Clearance:

0 mm (0 in.)

HINT:

Adjust the clearance in the following cases:

  • If there is clearance between the accessory tool and the shell of the brake booster (the accessory tool does not contact the body of the brake booster), the push rod is protruding too far.
  • If the chalk does not stick on the tip of the brake booster push rod, the push rod protrusion length is insufficient.

(d) If the clearance is not as specified, adjust the push rod length by holding the push rod using SST and turning the tip of the push rod using a 7 mm socket driver.

SST: 09737-00020

HINT:

Check the push rod clearance again after adjustment.

    Disassembly
    DISASSEMBLY PROCEDURE 1. REMOVE BRAKE MASTER CYLINDER TO WAY TUBE (a) Secure the brake master cylinder sub-assembly with way in a vise. NOTICE: Place aluminum plates on the vise to prevent damage to t ...

    Installation
    INSTALLATION PROCEDURE 1. INSPECT AND ADJUST BRAKE BOOSTER PUSH ROD Click here 2. INSTALL BRAKE MASTER CYLINDER O-RING (a) Install a new brake master cylinder O-ring to the brake master cylinder sub ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Brake: Disassembly
    DISASSEMBLY CAUTION / NOTICE / HINT NOTICE: If the rear disc brake cylinder assembly has been disassembled, perform air bleeding for the rear disc brake cylinder assembly. Click here Make sure not to scratch, damage or apply excessive force to any of the internal components of the rear disc b ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Steering Lock System: Steering Lock does not Lock
    DESCRIPTION The steering lock actuator or upper bracket assembly activates the steering lock motor and moves the lock bar into the steering column to lock the steering. When the steering lock is operating, the steering may not lock when the lock bar is not aligned with the lock hole of the steering ...

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

    © 2025 Copyright www.lexusrx.net
    0.0145