Freightliner rubber diaphragm inside the qrv may experience delamination resulting in significant levels of air pressure leakage past AND/OR through the diaphragm, or the development of a bubble in the diaphragm which may trap air pressure in the valve and not allow the service brakes to release.
The short version
DAIMLER TRUCKS NORTH AMERICA reported a problem with the supply quick release valve. Here is what owners need to know.
DAIMLER TRUCKS IS RECALLING 1,460 MODEL YEAR 2009 AND 2010 HEAVY DUTY TRUCKS AND FCCC CHASSIS (USED ON THOMAS BUILT SCHOOL BUSES) MANUFACTURED FROM JUNE 11 THROUGH DECEMBER 16, 2008, EQUIPPED WITH CERTAIN HALDEX QUICK RELEASE VALVES (QRV). THE RUBBER DIAPHRAGM INSIDE THE QRV MAY EXPERIENCE DELAMINATION RESULTING IN SIGNIFICANT LEVELS OF AIR PRESSURE LEAKAGE PAST AND/OR THROUGH THE DIAPHRAGM, OR THE DEVELOPMENT OF A BUBBLE IN THE DIAPHRAGM WHICH MAY TRAP AIR PRESSURE IN THE VALVE AND NOT ALLOW THE SERVICE BRAKES TO RELEASE.
MALFUNCTION OF THE AIR BRAKE SYSTEM COULD RESULT IN A VEHICLE CRASH.
DAIMLER TRUCKS WILL NOTIFY OWNERS AND REPAIR THE BUSES FREE OF CHARGE.
Affected vehicles
These model years are included in NHTSA campaign 09V-220.
| YEAR RANGE | MODEL |
|---|---|
| 2009 | Freightliner Cascadia |
| 2009 | Freightliner Columbia |
| 2009 | Freightliner M2 |
What changed
Newest first. The record shows both when the recall began and what has changed since.
- Recall reported to NHTSA. LATEST
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Check your VINWhat this record means
Data from the NHTSA recall database. A clean VIN check means no open federal recalls for that vehicle — not that it never had one.
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