I BOUGHT THIS VEHICLE FROM THE AUCTION IN ALGONA NAMED WHITEY'S PUBLIC AUTO AUCTION AND THAT VERY DAY I HAD TO PUT POWER STEERING FLUID IN BECAUSE THERE WAS A LEAK AND IT WAS DIFFICULT TO TURN. I'VE HAD THE POWER STEERING PUMP REPLACED AND IT CONTINUES TO LEAK. I GOT ON THE INTERNET AND STARTED TO RESEARCH AND FOUND OUT ABOUT TH…
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I BOUGHT THIS VEHICLE FROM THE AUCTION IN ALGONA NAMED WHITEY'S PUBLIC AUTO AUCTION AND THAT VERY DAY I HAD TO PUT POWER STEERING FLUID IN BECAUSE THERE WAS A LEAK AND IT WAS DIFFICULT TO TURN. I'VE HAD THE POWER STEERING PUMP REPLACED AND IT CONTINUES TO LEAK. I GOT ON THE INTERNET AND STARTED TO RESEARCH AND FOUND OUT ABOUT THE RECALL.
NHTSA ODI #11373106
219,444 miles · Jul 14, 2020
SteeringVehicle Speed ControlWheels
STEERING IS HARD TO TURN. OVER HEATS AND WILL NOT KEEP COOLINAT DOWN
NHTSA ODI #11339320
25 miles · Dec 10, 2019
Electronic Stability Control (esc)Fuel/propulsion SystemSteeringInjury
AS I NOTICED IN OTHER COMPLAINTS THEY ALL FOCUS IN THE POWER STEERING ISSUES, FUEL / OIL LEAKS AND LOSS, ESP OPTION , ELECTRICAL MAIL FUNCTIONS THAT RELATE WITH THE ECU, PROBLEM WITH THE SHIFTER. ALL THESE ARE SAFETY CONCERNS SINCE ALL THE ABOVE PROBLEMS CAN CAUSE AN ACCIDENT . I HAVE THE SAME PROBLEMS IN MY CAR AND IT IS REALL…
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AS I NOTICED IN OTHER COMPLAINTS THEY ALL FOCUS IN THE POWER STEERING ISSUES, FUEL / OIL LEAKS AND LOSS, ESP OPTION , ELECTRICAL MAIL FUNCTIONS THAT RELATE WITH THE ECU, PROBLEM WITH THE SHIFTER. ALL THESE ARE SAFETY CONCERNS SINCE ALL THE ABOVE PROBLEMS CAN CAUSE AN ACCIDENT . I HAVE THE SAME PROBLEMS IN MY CAR AND IT IS REALLY DIFFICULT TO OPERATE THE VEHICLE. THE POWER STEERING IS NOT WORKING AS THE CAR IS NOT IN SPEED MOTION UNLESS YOU USE STRENGTH TO TURN THE WHEEL , THE ESP IS NOT WORKING AT ALL , THE SHIFTER IS NOT CHANGING TO DRIVE UNLESS YOU OVERRIDE IT AND THAT'S THE ONLY WAY TO START IT AND THE FUEL ALONG WITH THE OIL IS LEAKING AND ALL THE FLUIDS ARE DISAPPEARING IN NO TIME . ALL THESE ARE SAFETY HAZARDS AND NOT JUST A SIMPLE PROBLEM . THERE SHOULD HAVE BEEN A REPAIR FOR ALL OF THESE ISSUES ASAP FREE OF CHARGE FROM MERCEDES FOR THE OWNERS OF THE PARTICULAR DEFECTIVE VEHICLES . THANK YOU IN ADVANCE
NHTSA ODI #11288070
Mileage unknown · Nov 27, 2018
Steering
MY POWER STEERING GOES OUT ALOT AND AS WELL LEAK ONTO THE GROUND I FIND IT VERY HARD TO STEER MY CAR AT TIMES . THE POWER STEERING FLUID DOESN'T LAST VERY LONG IT'S BEEN FIXED 1 AND THE PROBLEM PERSIST .
NHTSA ODI #11154148
178,888 miles · Jul 26, 2018
Steering
DIFFICULT TURNING LEFT OR RIGHT. USES LOT OF FORCE TO MOVE THE STELRING
NHTSA ODI #11114009
200,000 miles · Mar 1, 2016
Electrical SystemExterior LightingService Brakes
TL* THE CONTACT OWNS A 2000 MERCEDES-BENZ ML320. WHEN THE CONTACT ATTEMPTED TO ROLL DOWN BOTH PASSENGER SIDE WINDOWS, THEY FAILED TO ROLL DOWN. THE HEADLIGHTS AND INSTRUMENT PANEL LIGHTS FAILED TO ILLUMINATE. THE ABS, BRAKE FAILURE SWITCH, AND ESP WARNING LIGHTS ILLUMINATED. WHEN USING THE POWER STEERING TO ATTEMPT TO TURN THE V…
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TL* THE CONTACT OWNS A 2000 MERCEDES-BENZ ML320. WHEN THE CONTACT ATTEMPTED TO ROLL DOWN BOTH PASSENGER SIDE WINDOWS, THEY FAILED TO ROLL DOWN. THE HEADLIGHTS AND INSTRUMENT PANEL LIGHTS FAILED TO ILLUMINATE. THE ABS, BRAKE FAILURE SWITCH, AND ESP WARNING LIGHTS ILLUMINATED. WHEN USING THE POWER STEERING TO ATTEMPT TO TURN THE VEHICLE, THE WARNING LIGHT ILLUMINATED, INDICATING A MALFUNCTION OF THE POWER STEERING. THE VEHICLE HESITATED BEFORE COMPLETING THE TURN. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 200,000.
NHTSA ODI #10839162
145,500 miles · Jul 6, 2013
Service BrakesSteering
DRIVING ON INTERSTATE 295 IN JACKSONVILLE FL AT APPROXIMATELY 70 MPH IN THE MIDDLE LANE AND THE BRAKES LOCKED UP FOR 5-10 SECONDS AND THE BAS/ESP LIGHT CAME ON. I NEARLY LOST CONTROL OF THE VEHICLE AND ACCIDENTALLY CUT OFF SEVERAL CARS IN THE LANE TO MY RIGHT. FORTUNATELY NOBODY WAS INJURED, BUT IT COULD HAVE BEEN VERY DANGERO…
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DRIVING ON INTERSTATE 295 IN JACKSONVILLE FL AT APPROXIMATELY 70 MPH IN THE MIDDLE LANE AND THE BRAKES LOCKED UP FOR 5-10 SECONDS AND THE BAS/ESP LIGHT CAME ON. I NEARLY LOST CONTROL OF THE VEHICLE AND ACCIDENTALLY CUT OFF SEVERAL CARS IN THE LANE TO MY RIGHT. FORTUNATELY NOBODY WAS INJURED, BUT IT COULD HAVE BEEN VERY DANGEROUS! AFTER STOPPING, AND SHUTTING THE CAR OFF, AT AN EXIT FOR SO I COULD SEE IF I COULD SPOT ANYTHING I TRIED TO MAKE MY WAY HOME (OFF THE INTERSTATE). THE BAS/ESP LIGHT WAS OFF, AND EVERYTHING SEEMED TO BE ALRIGHT. HOWEVER, AFTER ABOUT 30 MINUTES, THE BRAKES LOCKED UP AGAIN. I WAS ONLY GOING ABOUT 30 MPH, BUT I WAS FORCED TO COME TO A COMPLETE STOP. THERE WAS A CAR BEHIND ME, BUT THEY WERE ABLE TO GET AROUND ME SAFELY. *TR
NHTSA ODI #10523462
144,000 miles · Mar 26, 2013
Steering
WHILE PULLING OUT THE DRIVEWAY AS IT SUDDENLY BECAME HARD TO STEER. AS I DROVE ON AND TURNED AGAIN STEERING RETURNED TO NORMAL. ABOUT 1 MONTH LATER THE SAME THING HAPPENED ONLY IT LASTED A WAS BIT LONGER. THE MORE RECENT EVENT OCCURRED ON 12-22-13. NOW ITS VERY HARD TO STEER SO HARD THAT TO DRIVE IS TOO RISKY. I CHECKED THE P…
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WHILE PULLING OUT THE DRIVEWAY AS IT SUDDENLY BECAME HARD TO STEER. AS I DROVE ON AND TURNED AGAIN STEERING RETURNED TO NORMAL. ABOUT 1 MONTH LATER THE SAME THING HAPPENED ONLY IT LASTED A WAS BIT LONGER. THE MORE RECENT EVENT OCCURRED ON 12-22-13. NOW ITS VERY HARD TO STEER SO HARD THAT TO DRIVE IS TOO RISKY. I CHECKED THE POWER STEERING FLUID AND IT WAS OK. NOW THE MECHANIC SAYS THAT IT MAY BE THE RACK. *TR
NHTSA ODI #10504500
Mileage unknown · Feb 28, 2013
Steering
MERCEDES BENZ ML 320. CONSUMER REQUESTS REIMBURSEMENT FOR REPAIRS. *SMD THE CONSUMER STATED THE STEERING WAS EXTREMELY STIFF AND THE VEHICLE WOULD NOT TURN. AFTER DOING SOME RESEARCH, THE CONSUMER DISCOVERED THE 2000 MODELS YEARS HAD STEERING PROBLEMS, DUE TO A FAULTY PUMP ASSEMBLY. THE VEHICLE WAS TOWED TO THE DEALER. TH…
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MERCEDES BENZ ML 320. CONSUMER REQUESTS REIMBURSEMENT FOR REPAIRS. *SMD THE CONSUMER STATED THE STEERING WAS EXTREMELY STIFF AND THE VEHICLE WOULD NOT TURN. AFTER DOING SOME RESEARCH, THE CONSUMER DISCOVERED THE 2000 MODELS YEARS HAD STEERING PROBLEMS, DUE TO A FAULTY PUMP ASSEMBLY. THE VEHICLE WAS TOWED TO THE DEALER. THE CONSUMER THEN RECEIVED A CALL FROM THE DEALER, STATING THE PUMP NEEDED TO BE REPLACED. THE CONSUMER ASKED ABOUT THE PUMP AND HOSE RECALL. THE DEALER STATED THE PARTS WOULD BE REPLACED FREE OF CHARGE. HOWEVER, THE PUMP WAS NOT APART OF THE RECALL AND IT WOULD COST $ 1190 TO REPLACE IT. THE CONSUMER REQUESTED THAT JUST THE RECALL PARTS BE REPLACED. BUT, THE DEALER STATED IT PROBABLY WOULD NOT FIX THE PROBLEM.
NHTSA ODI #10500421
121,700 miles · Jan 31, 2012
SteeringFire
TL* THE CONTACT OWNS A 2000 MERCEDES BENZ ML320. THE CONTACT STATED WHILE DRIVING, THE BATTERY LIGHT ILLUMINATED AND THE STEERING WHEEL BECAME HARD TO TURN. THE ENGINE TEMPERATURE INCREASED AND SMOKE RELEASED FROM UNDER THE HOOD. THE VEHICLE WAS DRIVEN TO THE CONTACTS HOME. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VE…
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TL* THE CONTACT OWNS A 2000 MERCEDES BENZ ML320. THE CONTACT STATED WHILE DRIVING, THE BATTERY LIGHT ILLUMINATED AND THE STEERING WHEEL BECAME HARD TO TURN. THE ENGINE TEMPERATURE INCREASED AND SMOKE RELEASED FROM UNDER THE HOOD. THE VEHICLE WAS DRIVEN TO THE CONTACTS HOME. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND THE CURRENT MILEAGE WAS 121,700.
NHTSA ODI #10445977
Official recalls
0
No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
4
PE10050 · Brake Lamp Switch Failure.
Opened Dec 21, 2010 · Closed May 4, 2011
Status: closed (inferred from source dates) · Exterior Lighting:brake Lights:switch; Service Brakes, Hydraulic; Vehicle Speed Control; Vehicle Speed Control:cruise Control
ODI opened the investigation based on reports that the subject vehicle brake lamp switch (switch) failure caused 1) inoperative brake lamps (stay on or fail to illuminate), and/or 2) shift interlock failure (shifter locked in park), and/or 3) the cruise control to fail to cancel with brake application.Consumers also reported the illumination of a warning lamp on the instrument panel.The switch contains three sets of electrical contacts and a (normally extended) spring loaded plunger that actuates the contacts as it moves.As installed in the vehicle, the plunger contacts the brake pedal arm and is pushed into the switch; as the driver applies the pedal the plunger extends.One set of contacts (BLS) operates the stop lamps, a second set (EWM) controls the shift interlock system, and a third set (BS) is used by an on-board diagnostic (OBD) system to monitor switch operation.The cruise control monitors the BLS signal to determine when the brake is applied, the primary way the system is disabled when set.The relative timing of contact actuation in response to plunger movement allows the OBD system to detect a switch fault.When a fault is detected a malfunction indication lamp (MIL) is illuminated (driver alert), a diagnostic trouble code (DTC) is stored (for the service technician), and cruise control operation is inhibited (as a failsafe).In its response to ODI's January 2011 information request letter, MB explained its assessment of switch failures which was based primarily on evaluation of field return failures.MB identified both 1) electrical contact and 2) mechanical switch failure mechanisms.According to MB's analysis, electrical contact failure is the predominate failure type and the failure consequence depends on which contact fails.For instance MB claims that BLS contact failures are momentary in nature and do not affect brake light operation but are nonetheless detected by the OBD system, resulting in a DTC and subsequent replacement.Electrical contact failures of the BS and EWM contacts result in a DTC also, and EWM contact failures result in the shifter being stuck in the park (which can be overridden by the consumer).Accordingly MB maintains that electrical contact failures of the switch have no safety consequence since the brake lamps remain operational and the cruise control is always disabled.MB determined that mechanical failures of the switch, which are rare in their assessment, can result from internal wear and/or increased switch operating temperatures.High temperatures occur due to overheating of the BLS contacts and can cause the internal plastic components to melt.In one scenario overheated BLS contacts may melt to the extended plunger and are damaged when the brake pedal is released resulting in the brake lights staying on.In another scenario the increased temperatures and/or internal wear can cause the plunger to stick in the fully depressed position.In this case the cruise may not cancel when the brake is applied and the driver may have to use high brake pedal forces or other means (shifting to neutral or using the cruise master switch) to disengage the cruise.Additionally the vacuum assist can be depleted if the driver pumps the brakes resulting in reduced braking effectiveness and even higher pedal forces.In its March 31, 2011 defect notification, MB stated that to remediate the potential need for excessive brake force it would conduct a safety recall (11V-208) to replace the switch with a more robustly designed component.The recall includes 136,751 model year 2000 - 2002 M-Class and model year 2000 - 2004 M-Class AMG vehicles.Owner notification letters will be mailed
Additional source detail variants (4)
Exterior Lighting:brake Lights:switch
ODI opened the investigation based on reports that the subject vehicle brake lamp switch (switch) failure caused 1) inoperative brake lamps (stay on or fail to illuminate), and/or 2) shift interlock failure (shifter locked in park), and/or 3) the cruise control to fail to cancel with brake application.Consumers also reported the illumination of a warning lamp on the instrument panel.The switch contains three sets of electrical contacts and a (normally extended) spring loaded plunger that actuates the contacts as it moves.As installed in the vehicle, the plunger contacts the brake pedal arm and is pushed into the switch; as the driver applies the pedal the plunger extends.One set of contacts (BLS) operates the stop lamps, a second set (EWM) controls the shift interlock system, and a third set (BS) is used by an on-board diagnostic (OBD) system to monitor switch operation.The cruise control monitors the BLS signal to determine when the brake is applied, the primary way the system is disabled when set.The relative timing of contact actuation in response to plunger movement allows the OBD system to detect a switch fault.When a fault is detected a malfunction indication lamp (MIL) is illuminated (driver alert), a diagnostic trouble code (DTC) is stored (for the service technician), and cruise control operation is inhibited (as a failsafe).In its response to ODI's January 2011 information request letter, MB explained its assessment of switch failures which was based primarily on evaluation of field return failures.MB identified both 1) electrical contact and 2) mechanical switch failure mechanisms.According to MB's analysis, electrical contact failure is the predominate failure type and the failure consequence depends on which contact fails.For instance MB claims that BLS contact failures are momentary in nature and do not affect brake light operation but are nonetheless detected by the OBD system, resulting in a DTC and subsequent replacement.Electrical contact failures of the BS and EWM contacts result in a DTC also, and EWM contact failures result in the shifter being stuck in the park (which can be overridden by the consumer).Accordingly MB maintains that electrical contact failures of the switch have no safety consequence since the brake lamps remain operational and the cruise control is always disabled.MB determined that mechanical failures of the switch, which are rare in their assessment, can result from internal wear and/or increased switch operating temperatures.High temperatures occur due to overheating of the BLS contacts and can cause the internal plastic components to melt.In one scenario overheated BLS contacts may melt to the extended plunger and are damaged when the brake pedal is released resulting in the brake lights staying on.In another scenario the increased temperatures and/or internal wear can cause the plunger to stick in the fully depressed position.In this case the cruise may not cancel when the brake is applied and the driver may have to use high brake pedal forces or other means (shifting to neutral or using the cruise master switch) to disengage the cruise.Additionally the vacuum assist can be depleted if the driver pumps the brakes resulting in reduced braking effectiveness and even higher pedal forces.In its March 31, 2011 defect notification, MB stated that to remediate the potential need for excessive brake force it would conduct a safety recall (11V-208) to replace the switch with a more robustly designed component.The recall includes 136,751 model year 2000 - 2002 M-Class and model year 2000 - 2004 M-Class AMG vehicles.Owner notification letters will be mailed
Service Brakes, Hydraulic
ODI opened the investigation based on reports that the subject vehicle brake lamp switch (switch) failure caused 1) inoperative brake lamps (stay on or fail to illuminate), and/or 2) shift interlock failure (shifter locked in park), and/or 3) the cruise control to fail to cancel with brake application.Consumers also reported the illumination of a warning lamp on the instrument panel.The switch contains three sets of electrical contacts and a (normally extended) spring loaded plunger that actuates the contacts as it moves.As installed in the vehicle, the plunger contacts the brake pedal arm and is pushed into the switch; as the driver applies the pedal the plunger extends.One set of contacts (BLS) operates the stop lamps, a second set (EWM) controls the shift interlock system, and a third set (BS) is used by an on-board diagnostic (OBD) system to monitor switch operation.The cruise control monitors the BLS signal to determine when the brake is applied, the primary way the system is disabled when set.The relative timing of contact actuation in response to plunger movement allows the OBD system to detect a switch fault.When a fault is detected a malfunction indication lamp (MIL) is illuminated (driver alert), a diagnostic trouble code (DTC) is stored (for the service technician), and cruise control operation is inhibited (as a failsafe).In its response to ODI's January 2011 information request letter, MB explained its assessment of switch failures which was based primarily on evaluation of field return failures.MB identified both 1) electrical contact and 2) mechanical switch failure mechanisms.According to MB's analysis, electrical contact failure is the predominate failure type and the failure consequence depends on which contact fails.For instance MB claims that BLS contact failures are momentary in nature and do not affect brake light operation but are nonetheless detected by the OBD system, resulting in a DTC and subsequent replacement.Electrical contact failures of the BS and EWM contacts result in a DTC also, and EWM contact failures result in the shifter being stuck in the park (which can be overridden by the consumer).Accordingly MB maintains that electrical contact failures of the switch have no safety consequence since the brake lamps remain operational and the cruise control is always disabled.MB determined that mechanical failures of the switch, which are rare in their assessment, can result from internal wear and/or increased switch operating temperatures.High temperatures occur due to overheating of the BLS contacts and can cause the internal plastic components to melt.In one scenario overheated BLS contacts may melt to the extended plunger and are damaged when the brake pedal is released resulting in the brake lights staying on.In another scenario the increased temperatures and/or internal wear can cause the plunger to stick in the fully depressed position.In this case the cruise may not cancel when the brake is applied and the driver may have to use high brake pedal forces or other means (shifting to neutral or using the cruise master switch) to disengage the cruise.Additionally the vacuum assist can be depleted if the driver pumps the brakes resulting in reduced braking effectiveness and even higher pedal forces.In its March 31, 2011 defect notification, MB stated that to remediate the potential need for excessive brake force it would conduct a safety recall (11V-208) to replace the switch with a more robustly designed component.The recall includes 136,751 model year 2000 - 2002 M-Class and model year 2000 - 2004 M-Class AMG vehicles.Owner notification letters will be mailed
Vehicle Speed Control:cruise Control
ODI opened the investigation based on reports that the subject vehicle brake lamp switch (switch) failure caused 1) inoperative brake lamps (stay on or fail to illuminate), and/or 2) shift interlock failure (shifter locked in park), and/or 3) the cruise control to fail to cancel with brake application.Consumers also reported the illumination of a warning lamp on the instrument panel.The switch contains three sets of electrical contacts and a (normally extended) spring loaded plunger that actuates the contacts as it moves.As installed in the vehicle, the plunger contacts the brake pedal arm and is pushed into the switch; as the driver applies the pedal the plunger extends.One set of contacts (BLS) operates the stop lamps, a second set (EWM) controls the shift interlock system, and a third set (BS) is used by an on-board diagnostic (OBD) system to monitor switch operation.The cruise control monitors the BLS signal to determine when the brake is applied, the primary way the system is disabled when set.The relative timing of contact actuation in response to plunger movement allows the OBD system to detect a switch fault.When a fault is detected a malfunction indication lamp (MIL) is illuminated (driver alert), a diagnostic trouble code (DTC) is stored (for the service technician), and cruise control operation is inhibited (as a failsafe).In its response to ODI's January 2011 information request letter, MB explained its assessment of switch failures which was based primarily on evaluation of field return failures.MB identified both 1) electrical contact and 2) mechanical switch failure mechanisms.According to MB's analysis, electrical contact failure is the predominate failure type and the failure consequence depends on which contact fails.For instance MB claims that BLS contact failures are momentary in nature and do not affect brake light operation but are nonetheless detected by the OBD system, resulting in a DTC and subsequent replacement.Electrical contact failures of the BS and EWM contacts result in a DTC also, and EWM contact failures result in the shifter being stuck in the park (which can be overridden by the consumer).Accordingly MB maintains that electrical contact failures of the switch have no safety consequence since the brake lamps remain operational and the cruise control is always disabled.MB determined that mechanical failures of the switch, which are rare in their assessment, can result from internal wear and/or increased switch operating temperatures.High temperatures occur due to overheating of the BLS contacts and can cause the internal plastic components to melt.In one scenario overheated BLS contacts may melt to the extended plunger and are damaged when the brake pedal is released resulting in the brake lights staying on.In another scenario the increased temperatures and/or internal wear can cause the plunger to stick in the fully depressed position.In this case the cruise may not cancel when the brake is applied and the driver may have to use high brake pedal forces or other means (shifting to neutral or using the cruise master switch) to disengage the cruise.Additionally the vacuum assist can be depleted if the driver pumps the brakes resulting in reduced braking effectiveness and even higher pedal forces.In its March 31, 2011 defect notification, MB stated that to remediate the potential need for excessive brake force it would conduct a safety recall (11V-208) to replace the switch with a more robustly designed component.The recall includes 136,751 model year 2000 - 2002 M-Class and model year 2000 - 2004 M-Class AMG vehicles.Owner notification letters will be mailed
Vehicle Speed Control
ODI opened the investigation based on reports that the subject vehicle brake lamp switch (switch) failure caused 1) inoperative brake lamps (stay on or fail to illuminate), and/or 2) shift interlock failure (shifter locked in park), and/or 3) the cruise control to fail to cancel with brake application.Consumers also reported the illumination of a warning lamp on the instrument panel.The switch contains three sets of electrical contacts and a (normally extended) spring loaded plunger that actuates the contacts as it moves.As installed in the vehicle, the plunger contacts the brake pedal arm and is pushed into the switch; as the driver applies the pedal the plunger extends.One set of contacts (BLS) operates the stop lamps, a second set (EWM) controls the shift interlock system, and a third set (BS) is used by an on-board diagnostic (OBD) system to monitor switch operation.The cruise control monitors the BLS signal to determine when the brake is applied, the primary way the system is disabled when set.The relative timing of contact actuation in response to plunger movement allows the OBD system to detect a switch fault.When a fault is detected a malfunction indication lamp (MIL) is illuminated (driver alert), a diagnostic trouble code (DTC) is stored (for the service technician), and cruise control operation is inhibited (as a failsafe).In its response to ODI's January 2011 information request letter, MB explained its assessment of switch failures which was based primarily on evaluation of field return failures.MB identified both 1) electrical contact and 2) mechanical switch failure mechanisms.According to MB's analysis, electrical contact failure is the predominate failure type and the failure consequence depends on which contact fails.For instance MB claims that BLS contact failures are momentary in nature and do not affect brake light operation but are nonetheless detected by the OBD system, resulting in a DTC and subsequent replacement.Electrical contact failures of the BS and EWM contacts result in a DTC also, and EWM contact failures result in the shifter being stuck in the park (which can be overridden by the consumer).Accordingly MB maintains that electrical contact failures of the switch have no safety consequence since the brake lamps remain operational and the cruise control is always disabled.MB determined that mechanical failures of the switch, which are rare in their assessment, can result from internal wear and/or increased switch operating temperatures.High temperatures occur due to overheating of the BLS contacts and can cause the internal plastic components to melt.In one scenario overheated BLS contacts may melt to the extended plunger and are damaged when the brake pedal is released resulting in the brake lights staying on.In another scenario the increased temperatures and/or internal wear can cause the plunger to stick in the fully depressed position.In this case the cruise may not cancel when the brake is applied and the driver may have to use high brake pedal forces or other means (shifting to neutral or using the cruise master switch) to disengage the cruise.Additionally the vacuum assist can be depleted if the driver pumps the brakes resulting in reduced braking effectiveness and even higher pedal forces.In its March 31, 2011 defect notification, MB stated that to remediate the potential need for excessive brake force it would conduct a safety recall (11V-208) to replace the switch with a more robustly designed component.The recall includes 136,751 model year 2000 - 2002 M-Class and model year 2000 - 2004 M-Class AMG vehicles.Owner notification letters will be mailed
PE07007 · Electronic Stability Control Malfunction
ODI OPENED PE07-007 AFTER RECEIVING 4 COMPLAINTS WITHIN A 6 WEEK PERIOD ALLEGING INCIDENTS OF UNCOMMANDED BRAKE APPLICATION IN MODEL YEAR (MY) 2000 THROUGH 2001 MERCEDES M CLASS SPORT UTILITY VEHICLES.INFORMATION CONTAINED IN THE REPORTS OR GATHERED IN SUBSEQUENT CONSUMER INTERVIEWS INDICATED THAT THE INCIDENTS WERE CAUSED BY FAULTS IN THE ELECTRONIC STABILITY PROGRAM (ESP) SYSTEM WHICH WERE REPAIRED BY REPLACING THE YAW RATE SENSORS.ALTHOUGH THE SAME YAW RATE SENSOR IS USED IN APPROXIMATELY 800,000 OTHER MERCEDES M-CLASS, C-CLASS AND SLK MODELS, TO DATE THERE HAS BEEN ONLY ONE RELATED COMPLAINT TO ODI IN THOSE VEHICLES. DURING THIS INVESTIGATION MERCEDES BENZ PROVIDED ODI WITH 327 COMPLAINTS RELATED TO THE ESP SYSTEM IN THE MY 2000 THROUGH 2001 M CLASS VEHICLES.SEVEN OF THE COMPLAINTS SUBMITTED BY MERCEDES ALLEGED INCIDENTS OF UNCOMMANDED BRAKE ACTIVATION WHILE DRIVING, WITH TWO OF THESE INVOLVING VEHICLES IDENTIFIED IN THE ODI COMPLAINTS.NONE OF THE INCIDENTS RESULTED IN CRASH OR INJURY.HOWEVER, THE OWNERS DID EXPRESS SAFETY CONCERNS DUE TO THE SUDDEN, UNEXPECTED CHANGE IN VEHICLE SPEED AND DIRECTION. ON MAY 10, 2007 MERCEDES BENZ MET WITH NHTSA TO PROVIDE A TECHNICAL PRESENTATION AND CONDUCT A DRIVING DEMONSTRATION OF THE ESP SYSTEM PERFORMANCE WITH SIMULATED ELECTRICAL FAULTS IN THE YAW RATE SENSOR.MERCEDES SHOWED THAT THE ESP SYSTEM IS PROGRAMMED TO DIAGNOSE ELECTRICAL FAULTS AND THAT BRAKE APPLICATIONS RESULTING FROM YAW RATE SENSOR ELECTRICAL FAULTS ARE VERY SHORT IN DURATION (0.3 SECONDS OR LESS) AND DO NOT AFFECT VEHICLE CONTROL OR STABILITY. NINE OF THE CONSUMER COMPLAINTS TO ODI AND MERCEDES ALLEGED BRAKE ACTIVATIONS LONGER THAN 0.3 SECONDS, WITH SEVERAL ALLEGING THAT THE INCIDENT LASTED UNTIL THE VEHICLE CAME TO A STOP.A COMPLAINT VEHICLE THAT ALLEGED MULTIPLE INCIDENTS WAS EVALUATED BY ODI AT THE VEHICLE RESEARCH AND TEST CENTER (VRTC) IN EAST LIBERTY, OHIO.VRTC WAS UNABLE TO DUPLICATE THE CONDITION.DUE TO THE LOW COMPLAINT RATE AND ONLY ONE NEW COMPLAINT TO ODI OR MERCEDES SINCE JANUARY 2007, THIS INVESTIGATION HAS BEEN CLOSED.ODI WILL CONTINUE TO MONITOR COMPLAINTS IN THE SUBJECT VEHICLES AND OTHER MERCEDES PRODUCTS USING THE SAME YAW RATE SENSOR AND MERCEDES WILL PROVIDE UPDATES ON FIELD EXPERIENCE (COMPLAINTS, FIELD REPORTS AND WARRANTY CLAIMS) THROUGH THE END OF 2007.
PE03058 · Engine Crankshaft Pulley Failure
Opened Dec 17, 2003 · Closed Apr 22, 2004
Status: closed (inferred from source dates) · Engine And Engine Cooling:engine:gasoline:belts And Associated Pulleys
THE OFFICE OF DEFECTS INVESTIGATION (ODI) OPENED THIS PRELIMINARY EVALUATION TO INVESTIGATE ALLEGATIONS OF ENGINE CRANKSHAFT PULLEY HARMONIC BALANCER FAILURE THAT COULD RESULT IN LOSS OF POWER-STEERING ASSIST.ODI HAS RECEIVED A TOTAL OF 546 NON-DUPLICATIVE REPORTS THAT ALLEGE ENGINE CRANKSHAFT PULLEY HARMONIC BALANCER FAILURE ON ALL MERCEDES-BENZ VEHICLES USING THE SUBJECT COMPONENT.THE SUBJECT COMPONENT FAILURES ARE PROGRESSIVE IN NATURE AND ONLY A SMALL PERCENTAGE OF THE COMPLAINTS AND WARRANT CLAIMS INVOLVED A FAILURE THAT HAD PROGRESSED FAR ENOUGH TO EFFECT POWER STEERING PERFORMANCE (6 OF 55 ODI COMPLAINTS REFERENCE INCREASED STEERING EFFORT).THERE HAVE BEEN NO CRASHES OR INJURIES RELATED TO THE ALLEGED DEFECT.A SAFETY-RELATED DEFECT HAS NOT BEEN IDENTIFIED AT THIS TIME AND FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED.ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT A SAFETY-RELATED DEFECT DOES NOT EXIST.THE AGENCY WILL TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.SEE SUMMARY REPORT ATTACHED FOR FURTHER DETAIL.
PE03006 · Power Steering Hose Assembly Leakage
Opened Feb 13, 2003 · Closed Apr 4, 2003
Status: closed (inferred from source dates) · Steering:hydraulic Power Assist:hose, Piping, And Connections; Steering:hydraulic Power Assist:power Steering Fluid
THE HOSE CLAMP USED TO SECURE THE POWER STEERING FLUID COOLING HOSE TO THE STEERING FLUID COOLER MAY NOT PROVIDE SUFFICIENT CLAMPING FORCE FOR THE CONNECTION.THE LOSS OF POWER STEERING FLUID MAY RESULT IN GRADUAL REDUCTION IN POWER STEERING ASSIST (I.E., INCREASED STEERING EFFORT) OVER TIME, WITH POTENTIAL DAMAGE TO THE POWER STEERING PUMP. THERE HAVE ALSO BEEN A FEW INCIDENTS OF HOSE SEPARATION FROM THE FITTING, THAT HAVE RESULTED IN MORE RAPID REDUCTIONS OF POWER STEERING.TESTING CONDUCTED BY MERCEDES-BENZ INDICATES THAT THE LEAKED FLUID IS NOT LIKELY TO BE EXPOSED TO HOT ENGINE COMPONENTS.THERE ARE NO KNOWN ALLEGATIONS THAT THE DEFECT CONDITION HAS CAUSED A VEHICLE FIRE. MERCEDES-BENZ WILL CONDUCT A VOLUNTARY RECALL CAMPAIGN FOR THE SUBJECT M-CLASS VEHICLES.MERCEDES-BENZ WILL INSTALL A NEW HOSE CLAMP ON THE POWER STEERING HOSE TO THE POWER STEERING COOLER OF THE SUBJECT VEHICLES.DURING CLAMP REPLACEMENT, THE POWER STEERING COOLING HOSE WILL BE INSPECTED AND REPLACED AS NECESSARY.
Additional source detail variants (2)
Steering:hydraulic Power Assist:hose, Piping, And Connections
THE HOSE CLAMP USED TO SECURE THE POWER STEERING FLUID COOLING HOSE TO THE STEERING FLUID COOLER MAY NOT PROVIDE SUFFICIENT CLAMPING FORCE FOR THE CONNECTION.THE LOSS OF POWER STEERING FLUID MAY RESULT IN GRADUAL REDUCTION IN POWER STEERING ASSIST (I.E., INCREASED STEERING EFFORT) OVER TIME, WITH POTENTIAL DAMAGE TO THE POWER STEERING PUMP. THERE HAVE ALSO BEEN A FEW INCIDENTS OF HOSE SEPARATION FROM THE FITTING, THAT HAVE RESULTED IN MORE RAPID REDUCTIONS OF POWER STEERING.TESTING CONDUCTED BY MERCEDES-BENZ INDICATES THAT THE LEAKED FLUID IS NOT LIKELY TO BE EXPOSED TO HOT ENGINE COMPONENTS.THERE ARE NO KNOWN ALLEGATIONS THAT THE DEFECT CONDITION HAS CAUSED A VEHICLE FIRE. MERCEDES-BENZ WILL CONDUCT A VOLUNTARY RECALL CAMPAIGN FOR THE SUBJECT M-CLASS VEHICLES.MERCEDES-BENZ WILL INSTALL A NEW HOSE CLAMP ON THE POWER STEERING HOSE TO THE POWER STEERING COOLER OF THE SUBJECT VEHICLES.DURING CLAMP REPLACEMENT, THE POWER STEERING COOLING HOSE WILL BE INSPECTED AND REPLACED AS NECESSARY.
Steering:hydraulic Power Assist:power Steering Fluid
THE HOSE CLAMP USED TO SECURE THE POWER STEERING FLUID COOLING HOSE TO THE STEERING FLUID COOLER MAY NOT PROVIDE SUFFICIENT CLAMPING FORCE FOR THE CONNECTION.THE LOSS OF POWER STEERING FLUID MAY RESULT IN GRADUAL REDUCTION IN POWER STEERING ASSIST (I.E., INCREASED STEERING EFFORT) OVER TIME, WITH POTENTIAL DAMAGE TO THE POWER STEERING PUMP. THERE HAVE ALSO BEEN A FEW INCIDENTS OF HOSE SEPARATION FROM THE FITTING, THAT HAVE RESULTED IN MORE RAPID REDUCTIONS OF POWER STEERING.TESTING CONDUCTED BY MERCEDES-BENZ INDICATES THAT THE LEAKED FLUID IS NOT LIKELY TO BE EXPOSED TO HOT ENGINE COMPONENTS.THERE ARE NO KNOWN ALLEGATIONS THAT THE DEFECT CONDITION HAS CAUSED A VEHICLE FIRE. MERCEDES-BENZ WILL CONDUCT A VOLUNTARY RECALL CAMPAIGN FOR THE SUBJECT M-CLASS VEHICLES.MERCEDES-BENZ WILL INSTALL A NEW HOSE CLAMP ON THE POWER STEERING HOSE TO THE POWER STEERING COOLER OF THE SUBJECT VEHICLES.DURING CLAMP REPLACEMENT, THE POWER STEERING COOLING HOSE WILL BE INSPECTED AND REPLACED AS NECESSARY.
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