Lexus 47316-48250 Front Brake Tube No.6

It should be replaced with a new one.

Loosen the wheel lug nuts, raise the vehicle, and remove the wheel. Unscrew the brake line fitting from the hose at the frame bracket using a flare-nut wrench. Remove the U-clip from the female fitting at the bracket with pliers and pass the hose through the bracket. At the caliper end, remove the banjo fitting bolt and separate the hose from the caliper. Replace the copper sealing washers with new ones. Remove the fastener from the strut bracket and detach the hose from it. To install the hose, pass the caliper fitting end through the strut bracket and connect it to the caliper with the banjo bolt and new sealing washers. Ensure the locating lug on the fitting is engaged with the hole in the caliper and tighten the bolt. Push the metal support into the strut bracket and install the U-clip, ensuring the hose isn't twisted. Route the hose into the frame bracket, making sure it isn't twisted, and connect the brake line fitting, tightening it securely. Bleed the caliper, install the wheel, lower the vehicle, and tighten the lug nuts.