2004 Mercedes-Benz SL-Class Review

Recalls

SUSPENSION

Recall Number: 

08V405000

Manufacturer Recall Number: 

2008080004

Manufactured from: 

2002-05-01 to 2006-12-31

Number of vehicles affected: 

4564

Defect Description: 

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.

Defect Consequence: 

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.

Corrective Action: 

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.

ELECTRICAL SYSTEM

Recall Number: 

08V303000

Manufacturer Recall Number: 

2008 07000

Manufactured from: 

2003-03-01 to 2008-02-28

Number of vehicles affected: 

404

Defect Description: 

MERCEDES-BENZ IS RECALLING MY 2006-2008 M-CLASS, R-CLASS, MY 2005-2009 SLK-CLASS, MY 2005-2008 C-CLASS, MY 2003-2004 AND 2006-2008 CLK-CLASS, MY 2003-2008 E-CLASS, MY 2004 AND 2008 CL-CLASS, MY 2008 CLS-CLASS, MY 2004 AND 2007-2008 S-CLASS, MY 2003 G-CLASS, AND MY 2003-2004, 2006 AND 2009 SL-CLASS VEHICLES. A SOFTWARE CALIBRATION NUMBER (SCN) CODING RECEIVED ON THE AFFECTED VEHICLES DURING A RECENT WORKSHOP VISIT WAS INCORRECT. DEPENDING ON THE MODEL YEAR AND MODEL AFFECTED, THE RESULTS OF AN INCORRECT SCN CODING CAN AFFECT A NUMBER OF VEHICLE SAFETY AND EMISSION FUNCTIONS INCLUDING THE FOLLOWING TYPES OF FUNCTIONS: (1) THE FUEL GAUGE READINGS MAY BE INCORRECT; (2) A STUCK FUEL-LEVEL SENSOR MAY NOT BE DISPLAYED IN THE INSTRUMENT CLUSTER; (3) THE OBD SYSTEM MAY CAUSE THE CHECK ENGINE LIGHT TO ILLUMINATE INCORRECTLY; AND, (4) THE SPEEDOMETER MAY BE OUT OF TOLERANCE.

Defect Consequence: 

IN THE EVENT OF A VEHICLE CRASH, THE ELECTRICAL FUEL PUMP MAY NOT RECEIVE A CRASH SIGNAL THAT IS REQUIRED FOR THE FUEL PUMP TO DISCONNECT AND PREVENT FUTURE FUEL DELIVERY AS DESIGNED.

Corrective Action: 

DEALERS WILL RECODE THE SCN FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 30, 2008. OWNERS MAY CONTACT MERCEDES-BENZ AT 1-800-367-6372.

SERVICE BRAKES, HYDRAULIC

Recall Number: 

05V133000

Manufacturer Recall Number: 

2005070007

Manufactured from: 

2001-06-01 to 2005-03-31

Number of vehicles affected: 

204000

Defect Description: 

ON CERTAIN VEHICLES, THE SENSOTRONIC BRAKE CONTROL (SBC) SYSTEM MAY PREMATURELY SHIFT TO THE HYDRAULIC BACK-UP FUNCTION MODE, DUE TO DETERIORATION OF THE WIRING HARNESS CONNECTION, OR DUE TO PREMATURE FAILURE OF THE HYDRAULIC PUMP.

Defect Consequence: 

IN THE HYDRAULIC BACK-UP MODE, THE DRIVER HAS BRAKING POWER SUFFICIENT TO STOP THE VEHICLE, ALTHOUGH GREATER BRAKE PEDAL PRESSURE IS REQUIRED AND THE BRAKE PEDAL TRAVEL WILL BE NOTICEABLY LONGER.

Corrective Action: 

DEALERS WILL INSTALL A BRACKET AND REPLACEMENT GROUND WIRE TO THE SBC PUMP UNIT ON ALL VEHICLES FREE OF CHARGE. ADDITIONALLY DEALERS WILL INSPECT AND REPLACE THE SBC PUMP UNIT IN SL VEHICLES PRODUCED DURING A LIMITED PRODUCTION PERIOD. THE RECALL BEGAN ON AUGUST 8, 2005. OWNERS MAY CONTACT MERCEDES-BENZ AT 1-800-367-6372.

SERVICE BRAKES, HYDRAULIC

Recall Number: 

04V296000

Manufacturer Recall Number: 

2004050014

Number of vehicles affected: 

143387

Defect Description: 

ON CERTAIN VEHICLES, THE ELECTRONIC MONITORING SYSTEM OF THE SENSOTRONIC BRAKE CONTROL (SBC) IS DESIGNED TO MONITOR THE PRESSURE GRADIENT WITHIN THE HIGH PRESSURE LINE OF THE BRAKE SYSTEM. IF AN UNACCEPTABLE PRESSURE GRADIENT IS DETECTED, THE SYSTEM WILL SWITCH, AS IT IS DESIGNED TO DO, INTO THE HYDRAULIC FUNCTION MODE.

Defect Consequence: 

IF VEHICLES ARE NOT ROUTINELY SERVICED AND HAVE EXTREMELY HIGH MILEAGE COMBINED WITH A HIGH NUMBER OF BRAKE ACTUATIONS, OR A HIGH BRAKE ACTUATION FREQUENCY, THE PUMP MOTOR OF THE SBC MAY RUN OUT OF PERMISSIBLE TOLERANCES, THEREBY TRIGGERING THE HYDRAULIC FUNCTION MODE.

Corrective Action: 

DEALERS WILL INSPECT THE SBC HYDRAULIC UNIT, REPLACING IT IF NECESSARY. THE RECALL BEGAN ON OCTOBER 21M 2004. OWNERS SHOULD CONTACT MERCEDES-BENZ AT 1-800-367-6372.