Lately, i experiencing the headlight does not turn on and my ABC is not work properly... Normally, at night time , the light will turn on automatically, but it is not work now.. What is the problem? Is this some thing that I can work on or replace fuse? and the ABC, one side is lower and the car is not raise up as it should be. When I drive for a few minutes, the ABC kick's in... What is the proplem?
Headlight and ABC on 2003 Mercedes-Benz SL500
by thavy12 in Long Beach, CA on November 22, 2009
1 answer 2 comments
ANSWER by backyard tech on November 22, 2009
This is a NHTSA recall concerning suspension problems. Even though your model isn't listed I would still check with the dealer concerning this. Vehicles: Make/Models: Model/Build Years: MERCEDES BENZ/CL215 2001-2006 MERCEDES BENZ/S220 2002-2006 MERCEDES BENZ/SL230 2003-2007 MERCEDES BENZ/S221 2007 MERCEDES BENZ/CL216 2007-2008 Defect: MERCEDES BENZ IS RECALLING 4,564 MY 2001-2006 CL-CLASS (MODEL 215), MY 2002-2006 S-CLASS (MODEL 220), MY 2003-2007 SL-CLASS (MODEL 230), MY 2007-2008 CL-CLASS (MODEL 216), AND MY 2007 S-CLASS (MODEL 221)PASSENGER VEHICLES EQUIPPED WITH ACTIVE BODY CONTROL (ABC) ACCELERATION SENSORS ON THE FRONT STRUTS. THESE SENSORS MEASURE ACCELERATION AROUND THE Z-AXIS OF THE VEHICLE AND ASSURE AN AUTOMATIC ADAPTATION OF THE FRONT STRUTS TO MAINTAIN A RELATIVELY LEVEL BODY POSITION. VARIATIONS IN THE SOLDERING PROCESS RESULTED IN SOLDERING POINTS ON THE BOARD OF THE ABC SENSORS WHICH MAY NOT BE WITHIN DESIGN TOLERANCES. SIGNALS FROM THE AFFECTED SENSORS MEASURING THE ACCELERATION MAY NOT BE ACCURATELY TRANSMITTED TO THE ENGINE CONTROL UNIT. Component Affected: SUSPENSION Corrective Action: A VARIATION IN THE TRANSMITTED VALUES BETWEEN AFFECTED AND UNAFFECTED SENSORS CAN RESULT IN ONE FRONT STRUT ADJUSTING TO A VALUE INDICATING BODY MOVEMENT WHILE ANOTHER STRUT DOES NOT ADJUST PRESENTING THE DRIVER WITH AN UNEVEN FRONT SUSPENSION. THIS CONDITION MAY LEAD TO UNEXPECTED BODY MOVEMENTS AT THE FRONT AXLE WHICH CAN ADVERSELY INFLUENCE THE VEHICLE'S DIRECTIONAL STABILITY AND COULD LEAD TO A VEHICLE CRASH. Consequence: DEALERS WILL INSPECT AND REPLACE, IF NECESSARY, THE FRONT ABC SENSORS IN ALL POTENTIALLY AFFECTED VEHICLES. THE RECALL BEGAN ON SEPTEMBER 22, 2008. OWNERS MAY CONTACT MERCEDES-BENZ AT 1-800-367-6372. Mfr. Campaign #: 2008080004 Mfr. Involved: MERCEDES-BENZ USA, LLC. # Vehicles Affected: 4564 File Date: 08/19/2008 The vehicle you are working on may or may not be affected by this recall. Contact the vehicle manufacturer for clarification.
Customer Concern: Air suspension will not raise left front of car. Tests/Procedures: 1. Operate air suspension compressor with switch on dash. Does car raise and lower during activation of compressor. Listen to compressor, it should not be excessively noisy, also the car should raise in a short amount of time. If so, compressor is weak and should be replaced. 2. With scan tool watch values for air pressure sensor that is located in valve block above compressor. It needs to show values in relation to system pressure. 3. Inspect all air lines and struts for air leaks. 4. At air compressor and pressure sensor, inspect all wiring for damage and corrosion. Potential Causes: Leaking AIR Air Suspension Compressor Pressure Sensor Wiring Tech Tips: A visual check for leaks and operation can be done with a smoke tester. Remove air line to affected strut and put hose into strut fitting. When activating the strut there should be pressure coming out of cars air line and with smoke machine on you will see a rate of flow on the flow indicator when the strut solenoid is activated. With smoke is in the strut you should find a leak.
Customer Concern: High beam on right inoperative after replacing headlight ballast for the low beam being inoperative. Now the low beam works, not the high beam. Tests/Procedures: 1. Verify that the part number of the replacement module is the same as the one removed from the vehicle. If not, get the supercession information from M-B dealer. 2. Remove and visually inspect the bulbs for defects. Test continuity with an ohmmeter if necessary. Potential Causes: Headlight Wiring Xenon Bulb Ignition Module Tech Tips: There is more than one version of headlight system available
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