Mercedes-Benz R230, W211 manual Objectives

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Objectives

At the end of this presentation, you should be able to:

1.Explain the function of and purpose for SBC

2.Describe the customer interface with SBC

3.List the hydraulic and electronic components used for SBC

4.Describe how the “normal” feel of the brake pedal is maintained

5.Explain emergency operation of the SBC braking system

6.Describe “temperature compensation”

7.Explain “Deactivation” and describe when it is necessary to do it

8.“Activate” the SBC system

9.Locate tools and the proper procedure for bleeding brakes

These technical training materials are current as of the date noted on the materials, and may be revised or updated without notice. Always check for revised or updated information.

To help avoid personal injury to you or others, and to avoid damage to the vehicle on which you are working, you must always ref er to the latest Mercedes -Benz Technical Publication and follow all pertinent instructions when testing, diagnosing or making repair.

Illustrations and descriptions in this training reference are based on preliminary information and may not correspond to the final US version vehicles. Refer to the official introduction manual and WIS

when available.

Copyright Mercedes-Benz USA, LLC, 2004 2

WIS document numbers shown apply to WIS Version USA/CDN at date of writing.

 

Reproduction by any means or by any information storage and retrieval system or translation in whole or part is not permitted without written authorization from Mercedes -Benz USA, LLC or it's

successors.

Published by Mercedes -Benz USA, LLC

Printed in U. S.A.

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Contents Sensotronic Brake Control SBCObjectives Contents SBC Incorporates these Functions Advantages of SBC Advantages of SBC Advantages of SBC Driving with SBC Wake-Up Driving with SBC Pre-Drive Check PDC Driving with SBC Delayed Off Function Page Page SBC Components W211 System Overview SBCR230 System Overview X11/4 Diagnosis Connection Brake Operating Unit BOU Brake Operating Unit Master Cylinder Fluid Reservoir Cover Pedal Value Sensor B37/1 BOU Tandem Master Cylinder Fluid reservoirNormal Braking Light Pressure Normal Braking Increased Pressure Normal Braking Strongest Feedback Emergency Operation Traction System Hydraulic Unit A7/3 Traction System Hydraulic Unit A7/3 Page Emergency Operation Circuit Brake Pressure Supply Three Pressure Stages Pressure Apply Rear Wheels Pressure Apply Front Wheels Pressure Apply All Wheels Pressure Hold All Wheels Pressure Reduction All Wheels Temperature Compensation Deactivation Deactivation Pressure at A7/3b2 System Activation System Activation Activation Left Front Activation Right Front Activation Right Rear Activation Left Rear Activation Recharge Bleeding the Brake System Proper system bleeding is critical Follow directions in SDSEquipment Required Connect equipment and follow steps in SDS Acronym List Appendix