LEMON Manuals: Even more car manuals for everyone
Home >> Mercedes Benz >> 2003 >> SL55 >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes - 230.474/475 Chassis >> Removal & Installation >> Brake Pads (Front) >> Removal & Installation >> SL500

Removal & Installation: SL500

  1. Deactivate SBC brake system. See DEACTIVATING & ACTIVATING SENSOTRONIC BRAKE CONTROL (SBC) SYSTEM (WITH STAR DIAGNOSIS COMPACT DIAGNOSIS SYSTEM)  or DEACTIVATING & ACTIVATING SENSOTRONIC BRAKE CONTROL (SBC) SYSTEM (WITHOUT STAR DIAGNOSIS COMPACT DIAGNOSIS SYSTEM)  under SERVICE PRECAUTIONS.
  2. Lower fluid level in brake fluid expansion reservoir to "MIN" marking to prevent brake fluid reservoir over flowing when brake caliper pistons are pushed back.
  3. Raise and support vehicle. Remove wheels.
  4. Disconnect brake pad contact sensor electrical connectors.
  5. Drive out retaining pins (41) with a punch (035). See Fig 1 .
  6. Remove spring plate (31d).
    7. NOTE: When levering out brake pads insert a wooden or plastic wedge between the lever and brake caliper.
  7. Remove brake pads (43) from brake caliper (31a). If brake pads are seized, lever brake pads out of brake caliper.
  8. Press brake pad contact sensors out of brake pad backing plate. Check brake pad lining thickness. See DISC BRAKE SPECIFICATIONS  . Check brake caliper for leaks and dust seal for damage, replace calipers if they are leaking or dust seals are damaged. See BRAKE CALIPER (FRONT)  . If calipers are not leaking and dust seals are not damaged, go to next step.
    9. NOTE: If pistons are difficult to move, replace calipers.
  9. Secure one set of pistons with a wedge to prevent them from slipping out, while pressing in the other set of pistons with resetting device (031).
  10. Clean perforation of brake discs if necessary.
  11. Installation is the reverse of removal. Defective contact sensors must be replaced. Do not use any sharp edged or pointed objects for cleaning brake pad guides. Install front brake pads with panel dry. In the process the marking (see arrow) on sheet metal must point in direction of wheel rotation. Activate SBC brake system. See DEACTIVATING & ACTIVATING SENSOTRONIC BRAKE CONTROL (SBC) SYSTEM (WITH STAR DIAGNOSIS COMPACT DIAGNOSIS SYSTEM)  or DEACTIVATING & ACTIVATING SENSOTRONIC BRAKE CONTROL (SBC) SYSTEM (WITHOUT STAR DIAGNOSIS COMPACT DIAGNOSIS SYSTEM)  under SERVICE PRECAUTIONS. Inspect fluid level in expansion reservoir, correct level if necessary.
Fig 1: Removing & Installing Front Brake Pads (SL500)
G00321215Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
scientia non olet · About LEMON Manuals