2026-08-09

Brake Hose - Front - LH (Remove and Replace)

Correction code 3303020102 FRT 0.48 NOTE: Unless otherwise explicitly stated in the procedure, the correction code and its associated FRT reflect all of the work required to perform this procedure, including the linked procedures. Do not stack correction codes unless explicitly told to do so. NOTE: See Flat Rate Times to learn more about FRTs and how they are created. NOTE: See Personal Protection to make sure you are wearing proper PPE when performing the procedure below. NOTE: See Ergonomic Precautions for safe and healthy working practices.

  • 2025-11-21: Added recommended tools for brake line nut. Clarified that banjo bolt and copper washers are included in the brake hose assembly.
  • 2025-03-19: Updated procedure link.
CAUTION
Brake fluid dissolves paint. Have clean towels and plenty of water standing by to wash spilled brake fluid off painted surfaces.
Note
Dispose of used brake fluid in a manner consistent with local environmental codes.
Note
The brake hose is not reusable. If the hose is removed for any reason, it must be replaced with a new one.

Torque Specifications

Table 1. Torque Specifications: Brake Hose - Front - LH (Remove and Replace)
Description Torque Value Recommended Tools Reuse/Replace Notes
Bolt that attaches the LH front brake hose bracket to the knuckle
5 Nm (3.7 lbs-ft)
  • 10 mm socket
 Reuse
Bolt that attaches the LH front brake hose to the LH front brake caliper
42 Nm (31.0 lbs-ft)
  • 11 mm deep socket
 Replace Bolt is part of brake hose assembly
Nut that attaches the LH front brake line to the LH front brake hose
16 Nm (11.8 lbs-ft)
  • 12 mm 6-point flare nut wrench
  • 12 mm 6-point flare nut crowfoot socket (mount at 90 degrees)
 Reuse
Nut that attaches the LH front brake hose to the vehicle
6 Nm (4.4 lbs-ft)
  • 10 mm deep socket
 Reuse

Remove

  1. Place the vehicle on the 2-post lift.
    Tip
    Ensure the vehicle is not charging.
  2. Open the LH front door and lower the LH front window.
  3. Place the vehicle in Service Mode by using the touchscreen. See Service Mode.
  4. Unlock the vehicle gateway. See Gateway (Unlock).
  5. Remove the rear underhood apron. See Underhood Apron - Rear (Remove and Replace).
  6. Remove the LH front wheel. See Wheel Assembly (Remove and Install).
  7. Position the brake fluid catcher under the LH front brake caliper area.
  8. Remove the bolt that attaches the LH front brake hose bracket to the knuckle.
    Tip
    Use of the following tool(s) is recommended:
    • 10 mm socket
  9. Remove and discard the bolt that attaches the LH front brake hose to the LH front brake caliper.
    Note
    Discard the bolt and the copper washers (x2) as part of the hose assembly.
    Tip
    Use of the following tool(s) is recommended:
    • 11 mm deep socket
  10. Remove the nut that attaches the LH front brake line to the LH front brake hose.
    Note
    Catch any fluid lost into the waste container.
    Tip
    Use of the following tool(s) is recommended:
    • 12 mm 12 pt combination wrench
  11. Remove the nut that attaches the LH front brake hose to the vehicle, and then remove the LH front brake hose from the vehicle.
    Tip
    Use of the following tool(s) is recommended:
    • 10 mm deep socket

Install

  1. Install the nut that attaches the LH front brake hose to the vehicle.
    6 Nm (4.4 lbs-ft)
    Tip
    Use of the following tool(s) is recommended:
    • 10 mm deep socket
  2. Hand-tighten the nut that attaches the LH front brake line to the LH front brake hose, and then torque it.
    16 Nm (11.8 lbs-ft)
    Tip
    Use of the following tool(s) is recommended:
    • 12 mm 12 pt combination wrench
  3. Install new copper washers (x2) and a new bolt to attach the LH front brake hose to the LH front brake caliper.
    42 Nm (31.0 lbs-ft)
    Note
    The bolt and washers are included in the brake hose assembly.
    Note
    Make sure the brake hose is not twisted.
    Tip
    Use of the following tool(s) is recommended:
    • 11 mm deep socket
  4. Remove the brake fluid catcher from underneath the LH front brake caliper.
  5. Install the bolt that attaches the LH front brake hose bracket to the knuckle.
    5 Nm (3.7 lbs-ft)
    Tip
    Use of the following tool(s) is recommended:
    • 10 mm socket
  6. Lower the vehicle to a comfortable working height and set the lift onto locks.
  7. Perform a brake fluid flush on the LH front brake. See Brake Fluid Bleed - One Caliper (Maintenance).