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2003 Workhorse W22

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

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When problems were reported

Mileage at the reported incident

77 reports with mileage · 36 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Service Brakes, Hydraulic. Review the 106 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel System, Gasoline. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports8 fire reports0 injury reports

Service Brakes, Hydraulic complaints

106 reports
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42,000 miles · Jan 12, 2011
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2003 WORKHORSE W-22. THE CONTACT STATED THAT HE RECEIVED A RECALL NOTICE FOR RECALL 09V110000 (SERVICE BRAKES, HYDRAULIC). THE VEHICLE WAS REPAIRED ACCORDING TO THE RECALL AND THE CONTACT WAS INFORMED THAT THE ROTORS HAD CRACKED DUE TO THE HEAT GENERATED FROM THE FAILED CALIPERS. THE DEALER STATED THAT EVEN…

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TL*THE CONTACT OWNS A 2003 WORKHORSE W-22. THE CONTACT STATED THAT HE RECEIVED A RECALL NOTICE FOR RECALL 09V110000 (SERVICE BRAKES, HYDRAULIC). THE VEHICLE WAS REPAIRED ACCORDING TO THE RECALL AND THE CONTACT WAS INFORMED THAT THE ROTORS HAD CRACKED DUE TO THE HEAT GENERATED FROM THE FAILED CALIPERS. THE DEALER STATED THAT EVEN THOUGH THE ROTORS WERE A PART OF THE BRAKING SYSTEM, THEY WOULD NOT BE REPAIRED UNDER THE RECALL. THE FAILURE MILEAGE WAS 42,000.

NHTSA ODI #10376408

Mileage unknown · Dec 23, 2010
Service Brakes, Hydraulic

CONSUMER WRITES REGARDING SAFETY RECALL 51101-C INVOLVING THE BOSCH SERVICE BRAKE CALIPER *TGW THE CONSUMER EXPERIENCED PROBLEMS WITH THE BRAKES WHILE ON A TRIP. WHEN THE CONSUMER ARRIVED AT THE DEALER, HE WAS INFORMED IT WOULD BE SEVERAL WEEKS BEFORE SERVICES COULD BE PERFORMED. THE CONSUMER THEN DECIDED TO SCHEDULED AN APPOI…

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CONSUMER WRITES REGARDING SAFETY RECALL 51101-C INVOLVING THE BOSCH SERVICE BRAKE CALIPER *TGW THE CONSUMER EXPERIENCED PROBLEMS WITH THE BRAKES WHILE ON A TRIP. WHEN THE CONSUMER ARRIVED AT THE DEALER, HE WAS INFORMED IT WOULD BE SEVERAL WEEKS BEFORE SERVICES COULD BE PERFORMED. THE CONSUMER THEN DECIDED TO SCHEDULED AN APPOINTMENT AT ANOTHER ESTABLISHMENT. THE REPAIR WAS SHOP WAS ABLE TO FINISH THE BRAKE RECALL WORK. HOWEVER, THEY WERE UNABLE TO GET THE ABS AND EMERGENCY BRAKE LIGHT AS WELL AS THE WARNING BUZZER TO OUT. THE NEXT DAY, THE REPAIR SHOP WAS ABLE TO RECTIFY THE PROBLEM. THE CONSUMER WAS CHARGE FOR THAT REPAIR. THE CONSUMER BELIEVED IT SHOULD HAVE BEEN COVERED UNDER THE RECALL AS WELL. *JB

NHTSA ODI #10372792

Mileage unknown · Dec 10, 2010
Service Brakes, Hydraulic

2003 W-22 WORKHORSE CHASSIS MOTOR HOME. CONSUMER STATES THAT HE HAD A RECALL FOR THE BRAKES AND ENDING UP PAYING FOR THE REPAIR. HE FEELS THAT WORKHORSE SHOULD HAVE PAID SINCE THE PART WAS UNDER RECALL. *KB THE CONSUMER STATED THE ABS LIGHT ILLUMINATED. THE RV WAS TAKEN TO A REPAIR SHOP AND THEY TURNED THE LIGHT OFF AND ADVISE…

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2003 W-22 WORKHORSE CHASSIS MOTOR HOME. CONSUMER STATES THAT HE HAD A RECALL FOR THE BRAKES AND ENDING UP PAYING FOR THE REPAIR. HE FEELS THAT WORKHORSE SHOULD HAVE PAID SINCE THE PART WAS UNDER RECALL. *KB THE CONSUMER STATED THE ABS LIGHT ILLUMINATED. THE RV WAS TAKEN TO A REPAIR SHOP AND THEY TURNED THE LIGHT OFF AND ADVISED THE CONSUMER TO COME BACK IN A FEW DAYS FOR A FULL INSPECTION. THE CONSUMER RETURNED A FEW DAYS LATER FOR A REAR BRAKE INSPECTION. THE REPAIR SHOP INFORMED THE CONSUMER THE REAR BRAKES HAD BECOME VERY HOT AND BURNED AND WOULD NEED TO BE REPLACED. WHEN THE PARTS ARRIVED, THE CONSUMER WENT BACK TO THE SHOP TO HAVE THE REAR BRAKES REPLACED. TWO YEARS AFTER HAVING THE REAR BRAKES REPLACED, THE ABS LIGHT ILLUMINATED AGAIN AND THE CONSUMER BEGAN HEARING STRANGE SOUNDS AND THE RV DROVE A LITTLE DIFFERENTLY. WHEN THE CONSUMER WAS ABLE TO PULL OVER, HE LOOKED UNDER THE RV AND SMELLED A STRANGE ODOR AND THE BRAKES WERE EXTREMELY HOT. THE CONSUMER WAS ABLE TO SAFELY DRIVE THE RV TO A REPAIR SHOP, ONCE THE BRAKES COOLED DOWN. THE REPAIR SHOP DETERMINED THE FRONT BRAKES HAD SEIZED AND OVERHEATED AND NEEDED TO BE REPLACED. THREE MONTHS LATER, THE CALIPERS WERE REPLACED. *JB

NHTSA ODI #10370010

Mileage unknown · Dec 6, 2010
Service Brakes, Hydraulic

2003 WORKHORSE CHASSIS. COURTESY COPY OF A LETTER FROM JAMES M. WALKER SUBMITTED TO WORKHORSE CUSTOM CHASSIS RE RECALL CAMPAIGN NUMBER 51101 *TGW THE CONSUMER STATED THE RECALL WORK PERFORMED. THE DEALER REPLACED THE FAULTY CALIPERS AT NO CHARGE, BUT FOUND TWO ROTORS CRACKED BEYOND REPAIR AND TWO OF THEM REQUIRED RESURFACING, A…

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2003 WORKHORSE CHASSIS. COURTESY COPY OF A LETTER FROM JAMES M. WALKER SUBMITTED TO WORKHORSE CUSTOM CHASSIS RE RECALL CAMPAIGN NUMBER 51101 *TGW THE CONSUMER STATED THE RECALL WORK PERFORMED. THE DEALER REPLACED THE FAULTY CALIPERS AT NO CHARGE, BUT FOUND TWO ROTORS CRACKED BEYOND REPAIR AND TWO OF THEM REQUIRED RESURFACING, ALL DUE TO HEAT PROBLEMS CAUSED BY THE FAULTY CALIPERS. THE CONSUMER IS REQUESTING REIMBURSEMENT FOR THE DAMAGED ROTORS. IN AUGUST 2005 ALL FOUR ROTORS HAD TO BE REPLACED DUE TO HEAT RELATED PROBLEMS CAUSED BY FAULTY CALIPERS. THE PADS WERE ROUTINE MAINTENANCE, BUT THE SEALS FAILED AND WERE SUBSEQUENTLY REPLACED. THE CONSUMER IS ALSO REQUESTING REIMBURSEMENT FOR THOSE ROTORS. *JB

NHTSA ODI #10370018

Mileage unknown · Dec 3, 2010
Service Brakes, Hydraulic

2003 W22 WORKHORSE CHASSIS. CONSUMER WRITES TO REQUEST A WORKHORSE REIMBURSEMENT *TGW THE CONSUMER IS REQUESTING REIMBURSEMENT AS A RESULT OF HAVING THE CALIPERS REPLACED. THE REPAIR FACILITY RECOMMENDED THE REPLACEMENT OF THREE ROTORS WHICH WERE CRACKED. THE CONSUMER STATED THERE WAS A DISTINCT BRAKE BURNING SMELL, THE ABS LI…

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2003 W22 WORKHORSE CHASSIS. CONSUMER WRITES TO REQUEST A WORKHORSE REIMBURSEMENT *TGW THE CONSUMER IS REQUESTING REIMBURSEMENT AS A RESULT OF HAVING THE CALIPERS REPLACED. THE REPAIR FACILITY RECOMMENDED THE REPLACEMENT OF THREE ROTORS WHICH WERE CRACKED. THE CONSUMER STATED THERE WAS A DISTINCT BRAKE BURNING SMELL, THE ABS LIGHT ILLUMINATED FOR EXTENDED PERIODS OF TIME, AND THERE WERE AT LEAST THREE TIMES THE BRAKING SYSTEM LOST ITS EFFECTIVENESS. *JB

NHTSA ODI #10368981

Mileage unknown · Nov 19, 2010
Service Brakes, Hydraulic

2003 WORKHORSE W22 CHASSIS. CONSUMER WRITES TO SEEK AN EXPLANATION AS TO WHY THE RECALL DID NOT COVER THE REPLACEMENT OF THE LEFT FRONT AND LEFT REAR ROTOR, PADS, OIL SEAL AND SPEED SENSOR *TGW THE CONSUMER STATED THE RIGHT FRONT SIDE OF THE RV WAS COVERED UNDER RECALL, BUT NOT THE LEFT SIDE. *JB

NHTSA ODI #10367509

Mileage unknown · Nov 17, 2010
Service Brakes, Hydraulic

CONSUMER WRITES REGARDING WORKHORSE RECALL *TGW THE CONSUMER WAS DENIED REIMBURSEMENT. ACCORDING TO WORKHORSE, THE WORK INVOICE DID NOT REFERENCE A PROBLEM CONCERNING CALIPER FAILURE AND THEY FURTHER STATED THE CONSUMER DID NOT TAKE THE RV TO AN AUTHORIZED SERVICE CENTER FOR THE BRAKE FAILURE. THE CONSUMER STATED THE BRAKE SYST…

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CONSUMER WRITES REGARDING WORKHORSE RECALL *TGW THE CONSUMER WAS DENIED REIMBURSEMENT. ACCORDING TO WORKHORSE, THE WORK INVOICE DID NOT REFERENCE A PROBLEM CONCERNING CALIPER FAILURE AND THEY FURTHER STATED THE CONSUMER DID NOT TAKE THE RV TO AN AUTHORIZED SERVICE CENTER FOR THE BRAKE FAILURE. THE CONSUMER STATED THE BRAKE SYSTEM LOCKED UP COMPLETELY AND BEGAN SMOKING PROFUSELY WHILE THE RV WAS BEING DRIVEN DURING RUSH HOUR TRAFFIC. THE BRAKE DISCS WERE SEVERELY WARPED AND THE CALIPERS WERE COMPLETELY INOPERATIVE. *JB UPDATED 01/05/11. *JB UPDATED 01/13/11. *JB

NHTSA ODI #10366292

53,521 miles · Nov 15, 2010
Service Brakes, Hydraulic

TL* THE CONTACT OWNS A 2003 WORKHORSE NEWMAN MOUNTAINEER WITH A W22 CHASSIS. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO THE DEALER FOR REPAIRS UNDER NHTSA CAMPAIGN ID NUMBER: 09V110000 (SERVICE BRAKES, HYDRAULIC) WHEN THE DEALER DISCOVERED THAT THE CALIPERS HAD OVERHEATED AND FRACTURED ALL FOUR ROTORS. THE DEALER REPLACED …

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TL* THE CONTACT OWNS A 2003 WORKHORSE NEWMAN MOUNTAINEER WITH A W22 CHASSIS. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO THE DEALER FOR REPAIRS UNDER NHTSA CAMPAIGN ID NUMBER: 09V110000 (SERVICE BRAKES, HYDRAULIC) WHEN THE DEALER DISCOVERED THAT THE CALIPERS HAD OVERHEATED AND FRACTURED ALL FOUR ROTORS. THE DEALER REPLACED THE ROTORS. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE AND CURRENT MILEAGE WAS 53,521.

NHTSA ODI #10365690

32,490 miles · Nov 12, 2010
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2003 DAMON INTRUDER. ON A 2003 WORKHORSE W22 CHASSIS. UPON EXITING THE VEHICLE, THE CONTACT SMELLED A BURNING ODOR FROM THE BRAKE AREA. THE FAILURE OCCURRED AFTER LONG DISTANCE DRIVES. THE VEHICLE WAS BEING SERVICED FOR RECALL 09V110000 (SERVICE BRAKES, HYDRAULIC) WHEN THE CONTACT WAS INFORMED THAT THE ROT…

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TL*THE CONTACT OWNS A 2003 DAMON INTRUDER. ON A 2003 WORKHORSE W22 CHASSIS. UPON EXITING THE VEHICLE, THE CONTACT SMELLED A BURNING ODOR FROM THE BRAKE AREA. THE FAILURE OCCURRED AFTER LONG DISTANCE DRIVES. THE VEHICLE WAS BEING SERVICED FOR RECALL 09V110000 (SERVICE BRAKES, HYDRAULIC) WHEN THE CONTACT WAS INFORMED THAT THE ROTORS WERE CRACKED. THE VEHICLE WAS REPAIRED. THE FAILURE MIEAGE WAS 32,490 UPDATED 01/21/11 *BF UPDATED 04/15/11

NHTSA ODI #10365475

28,000 miles · Nov 5, 2010
Service Brakes, Hydraulic

TL*THE CONTACT OWNS A 2003 WINNEBAGO ITASCO SUN CRUISER EQUIPPED WITH A 2003 WORKHORSE W22 CHASSIS. THE CONTACT STATED THAT RECALL FOR THE BRAKE CALIPERS (WORKHORSE RECALL) CAUSED DAMAGE WITHIN THE BRAKE PADS AND BRAKE HUBS. THE CONTACT CALLED THE MANUFACTURER WHO STATED THAT THEY WOULD ONLY REPAIR THE BRAKE CALIPERS AND THE OT…

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TL*THE CONTACT OWNS A 2003 WINNEBAGO ITASCO SUN CRUISER EQUIPPED WITH A 2003 WORKHORSE W22 CHASSIS. THE CONTACT STATED THAT RECALL FOR THE BRAKE CALIPERS (WORKHORSE RECALL) CAUSED DAMAGE WITHIN THE BRAKE PADS AND BRAKE HUBS. THE CONTACT CALLED THE MANUFACTURER WHO STATED THAT THEY WOULD ONLY REPAIR THE BRAKE CALIPERS AND THE OTHER COMPONENTS WERE NORMAL WEAR AND TEAR. THE VEHICLE HAD NOT BEEN REPAIRED. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 28,000. UPDATED 02/09/11*LJ UPDATED 11/03/11 *BF UPDATED 11/29/2011 *LN

NHTSA ODI #10364180

Official recalls

1

09V110000 · Service Brakes, Hydraulic

Apr 3, 2009

NAVISTAR IS RECALLING CERTAIN MODEL YEAR MY 2001-2008 WORKHORSE W20, W21 AND W22 CHASSIS AND CERTAIN MODEL YEAR 2009 THROUGH 2011 MONACO RV ADMIRAL, ARISTA, MONARCH, AND RIPTIDE RECREATIONAL VEHICLES EQUIPPED WITH AXLES THAT INCLUDE BOSCH ZOPS OR ZOHT PIN SLIDE HYDRAULIC DISC BRAKES. WHEN COMBINED WITH OCCASIONAL OR SEASONAL VEHICLE OPERATION MAY EXPERIENCE CALIPERS STICKING IN THE APPLIED POSITION. THIS CAN RESULT IN ABNORMAL HEAT GENERATION AT THE WHEEL END CAUSING BRAKE DRAG. THE DRIVER WOULD NORMALLY HAVE WARNING OF THE BRAKE DRAG IF UNDETECTED BY THE DRIVER.

Consequence & remedy

Consequence: THE TEMPERATURE INCREASE AT THE WHEEL END CAN EVENTUALLY LEAD TO SOFT PEDAL CONDITIONS DUE TO BRAKE FLUID BOIL, AND POSSIBLE EXTENDED STOPPING DISTANCE INCREASING THE RISK OF A CRASH.

Remedy: WORKHORSE DEALERS WILL REPLACE ALL FOUR BOSCH BRAKE CALIPER ASSEMBLIES FREE OF CHARGE. THE SAFETY RECALL BEGAN ON SEPTEMBER 16, 2010. OWNERS MAY CONTACT WORKHORSE AT 1-877-246-7731.

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

1

EA07016 · Overheating Disc Brake Caliper

Opened Nov 16, 2007 · Closed Aug 19, 2009

Status: closed (inferred from source dates) · Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Additional source detail variants (7)

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.

Service Brakes, Hydraulic

THE EA WAS OPENED TO GAIN A TECHNICAL UNDERSTANDING OF THE CAUSES FOR ONE OR MORE DISC BRAKE CALIPERS ON A SUBJECT VEHICLE TO SUFFER SEVERE OVERHEATING. THE OVERHEATING CAUSED BRAKE DRAG, MELTING ABS SENSORS, SMOKING, BRAKE LINING FIRES, AND IN SOME CASES BOILING BRAKE FLUID RESULTING IN DIMINISHED STOPPING CAPABILITY.BASED ON TESTING, WARRANTY AND COMPLAINT DATA ANALYSIS, FIELD TRIPS AND INTERVIEWS WITH OWNERS, MECHANICS AND SERVICE MANAGERS, ODI BELIEVES THE LIKELY CAUSE OF THE ALLEGED DEFECT IS WATER SWELL OF THE PHENOLIC CALIPER PISTON AND SUBSEQUENT FAILURE OF THE PISTON TO FULLY RETURN AFTER THE PEDAL IS RELEASED.A TECHNICAL REPORT IS ATTACHED WITH FULL DETAILS.