ORION VII

SEATS

Daimler Buses North America (DBNA) is recalling certain model year 2010-2012 Orion VII transit buses manufactured April 5, 2010, to October 31, 2012, equipped with certain Recaro Ergo-M Commercial Bus Driver Seats. The affected seats have J-Brackets that may be missing welds which could allow the seat belt anchorage assembly to separate from the J-Bracket.

Risk: If the seatbelt anchorage assembly separates from the J-Bracket, the bus driver may not be properly restrained in the event of a crash, increasing their risk of injury.

ENGINE AND ENGINE COOLING:ENGINE

Daimler Buses North America (DBNA) is recalling certain model year 2007-2012 Orion VII natural gas-powered transit buses manufactured January 1, 2007, to October 1, 2012. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.

Risk: If the engine oil comes into contact with hot surfaces, it can increase the risk of a vehicle fire.

ENGINE AND ENGINE COOLING:ENGINE

Daimler Buses North America (DBNA) is recalling certain model year 2007-2012 Orion VII transit buses manufactured January 2007 through October 2012 equipped with certain Cummins Westport Model ISL G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.

Risk: The improper operation of the sensor could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.

ELECTRICAL SYSTEM

Daimler Buses North America Ltd. (DBNA) is recalling certain model year 2003-2008 Orion V and model year 2002-2010 VII buses equipped with Sure Power equalizers and DC-DC Converters. The specific potting compound used in the equalizers and convertors for insulation was found to be capable of conducting electricity after being exposed to heat.

Risk: Once electrically conductive, the material is capable of melting and burning, increasing the risk of a fire.

PARKING BRAKE:DRIVELINE:AIR:CHAMBER

Daimler Buses North America (DBNA) is recalling certain model year 2011-2012 Orion VII transit buses equipped with disc brakes using MGM brake components. In the affected vehicles, the brake chambers may leak pressure allowing the parking brake to drag when it is supposed to be released. Brake dragging could lead to overheated brake components.

Risk: Overheated brake components could result in a fire.

ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

Daimler Buses North America (DBNA) is recalling certain model year 2004-2008 Orion V and model year 2005-2006 Orion VII transit buses equipped with John Deere Compressed Natural Gas (CNG) turbocharged engines. The turbine or compressor wheel may fail, resulting in subsequent damage to the engine and/or an oil leak.

Risk: Failure of the turbine or compressor wheel may result in smoke, fire, and stalling, increasing the risk of a crash.

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

DAIMLER BUSES IS RECALLING CERTAIN MODEL YEAR 2008 ORION VII TRANSIT BUSES MANUFACTURED FROM JUNE 13-16, 2008, AND EQUIPPED WITH TEETER LEVER ASSEMBLIES. THERE IS INSUFFICIENT ENGAGEMENT BETWEEN THE TEETER LEVER BASE AND THE CAM PLATE.

Risk: FAILURE OF THE TEETER LEVER ASSEMBLY WILL CAUSE THE REAR SIDE EXIT DOOR TO OPERATE IMPROPERLY. A PASSENGER LEANING ON OR FORCED AGAINST THE DOOR COULD FALL THROUGH THE DOOR AND SUSTAIN INJURIES.

ENGINE AND ENGINE COOLING

DAIMLER BUSES NORTH AMERICA (DBNA) IS RECALLING CERTAIN MODEL YEAR 2010 ORION VII TRANSIT BUSES MANUFACTURED FROM NOVEMBER 2010 THROUGH JANUARY 2011, EQUIPPED WITH A CUMMINS ISB, ISX, ISC, OR ISL DIESEL ENGINE. THE V-BAND CLAMP ASSEMBLY, PART NUMBERS Q187684, Q187685, AND Q187686, USED TO CONNECT THE INLET AND OUTLET CONE SECTIONS TO THE DIESEL OXIDATION CATALYST (DOC)/DIESEL PARTICULATE FILTER (DPF) INCLUDE A T-BOLT WHICH CAN FRACTURE AND FAIL WHEN SUBJECTED TO STRESS OR LOAD. A FRACTURE OR FAILURE OF THE T-BOLT MAY CAUSE THE CLAMP TO LOOSEN AND THE INLET OR OUTLET SECTIONS ATTACHED TO THE DOC/DPF HOUSING TO DISCONNECT.

Risk: IF THE INLET OR OUTLET SECTIONS DISCONNECT, HOT EXHAUST GASES CAN VENT PRIOR TO EXITING THE TAILPIPE, CREATING THE RISK OF COMBUSTION AND A FIRE. IF BOTH CLAMPS FAIL, THERE IS A RISK IN SOME APPLICATIONS THAT THE DOC/DPF HOUSING MAY DETACH COMPLETELY, CREATING A ROAD HAZARD.