Content .. 139 140 141 142 ..

Chrysler 300/300 Touring/300C, Dodge Magnum. Manual - part 141

8. After 4 to 8 ounces of brake fluid has been bled through the brake hydraulic circuit, and an air-free flow (no

bubbles) is maintained in the clear plastic hose (1) and jar (2), close the bleeder screw.

9. Bleed the remaining wheel circuits in the same manner until all air is removed from the brake hydraulic system.

10. Check brake pedal travel. If pedal travel is excessive or has not improved, some air may still be trapped in the

hydraulic system. Rebleed the brake system as necessary.

11. If equipped with antilock brakes, the hydraulic control unit may need to be bled, then rebleed base brakes.

(Refer to 5 - BRAKES - STANDARD PROCEDURE)

12. Reinstall all 4 bleeder screw dust caps.

13. Test drive vehicle to ensure brakes are operating properly and pedal feel is correct.

MANUAL BLEEDING METHOD

NOTE: To bleed the base brake system manually, an assistants help is required.

NOTE: To ensure all air is bled from the ICU or
junction block in a timely manner, it is recom-
mended to raise the rear of the vehicle approxi-
mately 5° higher than the front or approximately
10–12 inches as measured at the rear bumper (1).

1. Raise and support vehicle placing rear of vehicle

approximately 5° higher than the front or if mea-
sured at the rear bumper (1), approximately 10–12
inches above level. It will be necessary to add
extra support stands under vehicle to support this
angle.

2. Remove rubber duct caps from all 4 bleeder

screws.

3. Attach a clear hose (1) to the bleeder screw at one

wheel and feed the other end of the hose into a
clear jar (2) containing fresh brake fluid.

4. Have an assistant pump the brake pedal three or

four times and hold it down before the bleeder
screw is opened.

CAUTION: Open the bleeder screw at least one full
turn when instructed. Some air may be trapped in
the brake lines or valves far upstream, as far as
ten feet or more from the bleeder screw. If the
bleeder screw is not opened sufficiently, fluid flow
is restricted causing a slow, weak fluid discharge.
This will NOT get all the air out. Therefore, it is
essential to open the bleeder screw at least one
full turn to allow a fast, large volume discharge of brake fluid.

5. While the pedal is being held down, open the bleeder screw at least 1 full turn. When the bleeder screw opens

the brake pedal will drop all the way to the floor. Continue to hold the pedal all the way down.

6. Once the brake pedal has dropped, close the bleeder screw. The pedal can then be released.

7. Repeat steps One through Five until all trapped air is removed from that wheel circuit (usually four or five times).

This should pass a sufficient amount of fluid to expel all the trapped air from the brakes hydraulic system. Be

5 - 6

BRAKES - BASE

sure to monitor brake fluid level in master cylinder fluid reservoir making sure it stays at a proper level. This will
ensure air does not reenter brake hydraulic system through master cylinder.

NOTE: Monitor the brake fluid level in the fluid reservoir periodically to make sure it does not go too low.
This will ensure that air does not reenter the brake hydraulic system.

8. Bleed the remaining wheel circuits in the same manner until all air is removed from the brake hydraulic system.

9. Check brake pedal travel. If pedal travel is excessive or has not improved, some air may still be trapped in the

hydraulic system. Rebleed the brake system as necessary.

10. If equipped with antilock brakes, the hydraulic control unit may need to be bled, then rebleed base brakes.

(Refer to 5 - BRAKES - STANDARD PROCEDURE)

11. Reinstall all 4 bleeder screw dust caps.

12. Test drive vehicle to ensure brakes are operating properly and pedal feel is correct.

BASE BRAKE BLEEDING - SRT8

Use the following procedure to bleed the rear brake calipers of this vehicle. The front brake calipers may be bled
using the same procedure as the standard model.

CAUTION: Before removing the master cylinder cover, wipe it clean to prevent dirt and other foreign matter
from dropping into the master cylinder.

CAUTION: Use only Mopar

brake fluid or an equivalent from a fresh, tightly sealed container. Brake fluid

must conform to DOT 3 specifications.

NOTE: For bleeding the antilock brake hydraulic system, (Refer to 5 - BRAKES - STANDARD PROCEDURE)

NOTE: Do not pump the brake pedal at any time while having a bleeder screw open during the bleeding
process. This will only increase the amount of air in the system and make additional bleeding necessary.

NOTE: Do not allow the master cylinder reservoir to run out of brake fluid while bleeding the system. An
empty reservoir will allow additional air into the brake system. Check the fluid level frequently and add fluid
as needed.

NOTE: Pressure bleeding is highly recommended to bleed this brake system to ensure all air is removed
from system. Manual bleeding may also be used, but additional time is needed to remove all air from sys-
tem.

Although it is recommended that the base brake system be bled using the pressure method, the manual method
can also be performed. Both methods are presented in this text.

PRESSURE BLEEDING METHOD

NOTE: Follow pressure bleeder manufacturer’s instructions for use of pressure bleeding equipment.

BRAKES - BASE

5 - 7

1. Remove filler cap from the top of fluid reservoir (2)

on master cylinder.

2. Install Adapter (1), Special Tool 6921, in the caps

place on the reservoir (2).

3. Attach Bleeder Tank, Special Tool C-3496-B, or

equivalent, to Adapter 6921 (1). Pressurize the sys-
tem following the pressure bleeder manufacturer’s
instructions.

4. Raise and support vehicle placing rear of vehicle

NOTE: The following wheel circuit sequence for bleeding the brake hydraulic system should be used to
ensure adequate removal of all trapped air from the brake hydraulic system.

•

Right rear wheel

•

Left rear wheel

•

Right front wheel

•

Left front wheel

5 - 8

BRAKES - BASE

REAR BRAKES

1. If installed, remove rubber dust caps from both

bleeder screws on each caliper.

2. Starting at the first wheel circuit that needs to be

bled (See list in above note), attach a clear hose
(3) to the inboard bleeder screw (2) at that wheels
brake caliper and feed the other end of hose into a
clear jar (4) containing enough fresh brake fluid to
submerge the end of the hose.

3. Open inboard bleeder screw (2) at least one full turn or more to obtain an adequate flow of brake fluid.

4. After 4 to 8 ounces of brake fluid has been bled through the brake hydraulic circuit, and an air-free flow (no

bubbles) is maintained in the clear plastic hose (3) and jar (4), close the bleeder screw (2).

5. Remove clear hose and install bleeder screw dust cap.

6. Attach a clear hose (5) to the outboard bleeder

screw (1) at that same wheels brake caliper and
feed the other end of hose into a clear jar (4) con-
taining enough fresh brake fluid to submerge the
end of the hose.

7. Open outboard bleeder screw (1) at least one full

turn or more to obtain an adequate flow of brake
fluid.

8. After 4 to 8 ounces of brake fluid has been bled through the brake hydraulic circuit, and an air-free flow (no

bubbles) is maintained in the clear plastic hose (5) and jar (4), close the bleeder screw (1).

9. Remove clear hose and install bleeder screw dust cap.

10. Bleed opposite rear brake wheel circuits as necessary in the same manner until all air is removed from the

brake hydraulic system, then proceed to the front brakes.

BRAKES - BASE

5 - 9

Content .. 139 140 141 142 ..