34 00 025 Replacing fluid in DSC brake system

WARNING: This page is about a different variant/trim than selected.

Read and comply with GENERAL INFORMATION .

IMPORTANT: When carrying out repairs to the brake system, follow the procedure set out in BLEEDING BRAKE SYSTEM WITH DSC .

Open cover (1).

Connect bleeder unit to expansion tank (2) and switch on.

IMPORTANT: Check relevant Operating Instructions for each device.
Charging pressure should not exceed 2 bar.

Fig 1: Identifying Expansion Tank And Cover

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Flushing brake system completely

Connect bleeder hose with collecting tray to bleeder valve on rear right brake caliper.

Open bleeder valve and purge until clear, bubble-free brake fluid emerges.

Close bleed valve.

Follow same procedure on rear left, front right and front left wheel brake.

Fig 2: Connecting Bleeder Hose To Bleeder Valve

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NOTE: The CLUTCH SLAVE CYLINDER must be scavenged in cars with manual transmissions.

Switch off bleeder unit and remove from expansion tank.

Check brake fluid level. If necessary, top up/draw off to max. level.

Close expansion tank.

NOTE: Pay attention to rubber seal (1) in sealing cap.

Fig 3: Identifying Rubber Seal

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