Brake Fluid Bleed - One Caliper
Correction code 33031102 0.35 NOTA: Salvo diversa ed esplicita indicazione nella procedura, il codice modifica e il tempo forfettario, o FRT, riflettono tutto il lavoro richiesto per l'esecuzione di questa procedura, incluse le procedure collegate. Non cumulare i codici modifica a meno che non venga detto esplicitamente di farlo. NOTA: Consultare la Tempistica tariffe fisse per saperne di più sui tempi forfettari e su come essi vengono creati. NOTA: Consultare Protezione personale per assicurarsi di indossare i DPI adatti quando si esegue la procedura descritta di seguito. NOTA: Vedere per le pratiche di lavoro in sicurezza.
- 2025-04-09: Added images depicting the LH front and rear (base and performance) caliper types for clarity.
- 2024-07-05: Corrected torque figures for brake caliper bleed valves.
- 2024-05-13: Removed steps for running TEST-SELF-VCFRONT_X_BRAKE-FLUID-LEVEL routine.
- 2024-01-30: Corrected torque figure differentiation for rear brake caliper bleed valves and updated various step references in the procedure.
- 2023-12-19: Removed unnecessary step.
- 2023-12-08: Updated brake stiffness routine.
Apparecchiatura:
- 1054715-01-A Brake System Servicing Equipment
- 1079041-00-A Flare nut crowfoot set
- 1080578-00-C Adapter, Brake Bleeder, Model 3 (Leitenberger B648W US)
- 1086618-01-A Catch Bottle
Procedure
Il liquido dei freni scioglie la vernice. Tenere a portata di mano dei panni puliti e abbondante acqua per sciacquare il liquido dei freni qualora si rovesciasse sulle superfici verniciate.
Dispose of used brake fluid in a manner consistent with local environmental codes.
- Review the bleeder service tool profile.
- Raise the vehicle and remove the wheel for the caliper to be bled. See Wheel Assembly (Remove and Install).
- Lower the vehicle to a working height.
- In Toolbox, type "bleed" into the search field and click Actions.
- Clean the area around the brake fluid reservoir breather cap and remove the cap.
- Add clean brake fluid to the MAX level in the reservoir.
- Attach the pressure cap to the reservoir.
- Set the pressure to 30 PSI.
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Perform the rest of this procedure according to the caliper you are bleeding.
Figure 1. LH front brake caliper (base) shown; RH similar Figure 2. LH front brake caliper (performance) shown; RH similar Figure 3. LH rear brake caliper (base) shown; RH similar Figure 4. LH rear brake caliper (performance) shown; RH similar -
Remove the caliper outer bleed valve cap and attach the catch bottle to the valve.
NoteHang the bottle by the wire hook, not by the hose.
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In Toolbox, start the task for the particular caliper.
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For the front LH and rear RH calipers, run PROC_ESP_FRONT-L-REAR-R-BRAKE-BLEEDvia Service Mode:Chassis ➜ Brakes ➜ Brake Bleed FL-RRvia Service Mode Plus:
- chassis ➜ ESP Post Replacement ➜ Bleed FL/RR Calipers
- chassis ➜ ESP Replacement Panel ➜ Bleed FL/RR Calipers
- chassis ➜ IBST Replacement Panel ➜ Bleed FL/RR Calipers
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For the front RH and rear LH calipers,
run PROC_ESP_FRONT-R-REAR-L-BRAKE-BLEEDvia Service Mode:Chassis ➜ Brakes ➜ Brake Bleed FR-RLvia Service Mode Plus:
- chassis ➜ ESP Post Replacement ➜ Bleed FR/RL Calipers
- chassis ➜ ESP Replacement Panel ➜ Bleed FR/RL Calipers
- chassis ➜ IBST Replacement Panel ➜ Bleed FR/RL Calipers
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For the front LH and rear RH calipers, run PROC_ESP_FRONT-L-REAR-R-BRAKE-BLEEDvia Service Mode:Chassis ➜ Brakes ➜ Brake Bleed FL-RRvia Service Mode Plus:
- Open the outer bleed valve and watch the fluid as it flows out of the caliper.
- Use the crowfoot extension to close the bleed valve when the pump stops, or when clean fluid without bubbles flows out of the caliper.
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Make sure that the reservoir does not go empty, or that the catch bottle does not overfill.
CAUTIONIf the reservoir goes empty, you must perform a complete brake system bleed. See #GUID-35E8034B-CCEE-4045-9C21-67717AD2EE38.
- Repeat step 11through step 14 until clean fluid without bubbles flows out of the caliper.
- Remove the catch bottle and install the bleed valve cap.
- Repeat step 11 through step 14 for the inner bleed valve, and again for the outer bleed valve.
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Tighten the bleed valves:
Mando brake calipers
10 Nm (7.4 lbs-ft)Hitachi brake calipers
12 Nm (8.8 lbs-ft)Brembo brake calipers
18.5 Nm (13.6 lbs-ft) - Go to step 28.
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Remove the caliper bleed valve cap and attach the catch bottle to the valve.
NoteHang the bottle by the wire hook, not by the hose.
-
In Toolbox, start the task for the particular caliper.
-
For the front LH and rear RH calipers, run PROC_ESP_FRONT-L-REAR-R-BRAKE-BLEEDvia Service Mode:Chassis ➜ Brakes ➜ Brake Bleed FL-RRvia Service Mode Plus:
- chassis ➜ ESP Post Replacement ➜ Bleed FL/RR Calipers
- chassis ➜ ESP Replacement Panel ➜ Bleed FL/RR Calipers
- chassis ➜ IBST Replacement Panel ➜ Bleed FL/RR Calipers
-
For the front RH and rear LH calipers,
run PROC_ESP_FRONT-R-REAR-L-BRAKE-BLEEDvia Service Mode:Chassis ➜ Brakes ➜ Brake Bleed FR-RLvia Service Mode Plus:
- chassis ➜ ESP Post Replacement ➜ Bleed FR/RL Calipers
- chassis ➜ ESP Replacement Panel ➜ Bleed FR/RL Calipers
- chassis ➜ IBST Replacement Panel ➜ Bleed FR/RL Calipers
-
For the front LH and rear RH calipers, run PROC_ESP_FRONT-L-REAR-R-BRAKE-BLEEDvia Service Mode:Chassis ➜ Brakes ➜ Brake Bleed FL-RRvia Service Mode Plus:
- Open the bleed valve and watch the fluid as it flows out of the caliper.
- Use the crowfoot extension to close the bleed valve when the pump stops, or when clean fluid without bubbles flows out of the caliper.
-
Make sure that the reservoir does not go empty, or that the catch bottle does not overfill.
CAUTIONIf the reservoir goes empty, you must perform a complete brake system bleed. See #GUID-35E8034B-CCEE-4045-9C21-67717AD2EE38.
- Repeat step 20 through step 24 until clean fluid without bubbles flows out of the caliper.
- Remove the catch bottle and install the bleed valve cap.
-
Tighten the bleed valves:
Mando brake calipers
10 Nm (7.4 lbs-ft)Hitachi brake calipers
12 Nm (8.8 lbs-ft)Brembo brake calipers
18.5 Nm (13.6 lbs-ft) - Refill the reservoir to MAX, and properly dispose of the catch bottle contents.
- Remove the pressure cap from the reservoir and install the reservoir cap.
- Press the brake pedal several times to verify proper feel and action.
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Using Toolbox 3:
- If the stiffness test fails because the minimum pressure was not reached, repeat the bleed procedure from step 4.
- Install the wheel and lower the vehicle. See Wheel Assembly (Remove and Install).
- Repeatedly press the brake pedal until it feels firm.
- Perform a road test using a series of panic stops to make sure there is proper pedal feel and brake performance.