Total Complaints
8 filings
Freightliner Business Class M2 · model year
8 NHTSA complaints, 1 crash report, and 10 recall campaigns listed for this cohort. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The verdict
The 2004 Freightliner Business Class M2 posts above-average complaint volume among its own model-year siblings.
The 2004FreightlinerBusiness Class M2 carries 8 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 1 crash, 1 fire, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 2004 Business Class M2 is suspension with 2 filings, followed by service brakes, air:antilock (1) and parking brake:driveline:hydraulic (1). Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause. This cohort has 10 NHTSA recall campaigns listed below. Enter a VIN in NHTSA's official recall lookup to determine whether a specific vehicle has an unrepaired recall.
NHTSA currently has 1 investigation file overlapping the 2004 Business Class M2. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
PlainCars' own composite of NHTSA NCAP crash-test ratings and rollover-risk assessment, each dimension normalized against the federal scale or the full national model-year corpus. Not an official NHTSA figure, and not a substitute for a specific vehicle's VIN-level recall check.
Total Complaints
8 filings
Crashes Reported
1 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| SUSPENSION | 2 |
| SERVICE BRAKES, AIR:ANTILOCK | 1 |
| PARKING BRAKE:DRIVELINE:HYDRAULIC | 1 |
| FUEL SYSTEM, DIESEL | 1 |
| WHEELS | 1 |
| ENGINE | 1 |
| SERVICE BRAKES | 1 |
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
ON CERTAIN TRUCKS AND FIRE TRUCKS EQUIPPED WITH KYS 4735-43782-02 ENGINE COOLING FANS AND BUILT ON CATERPILLAR 3126, C7, MBE906, MBE926, OR CUMMINS ISC ENGINES, THE STEEL FAN INSERT ON THE COOLING FANS CAN CRACK.
POWER TRAIN:AXLE ASSEMBLY
DAIMLER TRUCKS IS RECALLING 28,764 MY 2001 THROUGH 2008 FCCC B2 AND FS65 SCHOOL BUS CHASSIS, FCCC FB65 CONVENTIONAL BUSES, AND STERLING ACTERRA, FREIGHTLINER FLN, AND BUSINESS CLASS M2 HEAVY TRUCKS, BUILT FROM JANUARY 26, 2000, THROUGH MARCH 24, 2008, MANUFACTURED WITH ARVINMERITOR OR AXLE ALLIANCE
TIRES
CERTAIN MICHELIN XDE COMMERCIAL TRUCK TIRES, SIZE 10R22.5 LRG AND LRF FOR USE ON FREIGHTLINER SCHOOL AND TRANSIT BUSES. THESE TIRES WERE MANFACTURED BETWEEN MAY 23 AND OCTOBER 24, 2004, CAN EXPERIENCE RAPID AIR LOSS DUE TO AN IRREGULARITY OF THE INNER LINER.
FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
DAIMLER TRUCKS NORTH AMERICA (DTNA) IS RECALLING 24,650 SCHOOL AND NON-SCHOOL BUSES, MOTOR HOME CHASSIS, AND TRUCKS MANUFACTURED FROM MARCH 9, 2004 THROUGH AUGUST 18, 2006, EQUIPPED WITH EPA04 CERTIFIED MBE900 ENGINES, MANUFACTURED BY DETROIT DIESEL BETWEEN MARCH 1, 2004, AND JULY 31, 2006. THE HIG
FUEL SYSTEM, DIESEL
DAIMLER TRUCKS IS RECALLING CERTAIN MODEL YEAR 2004 THROUGH 2008 HEAVY TRUCKS MANUFACTURED FROM JULY 11, 2003, THROUGH SEPTEMBER 28, 2007, EQUIPPED WITH EPA04 MODEL MBE4000 ENGINES BUILT WITH PLASTIC LOW PRESSURE FUEL LINES AND FUEL FILTERS MOUNTED NEAR THE CENTER OF THE ENGINE ON THE LEFT-HAND SIDE
SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
CERTAIN FREIGHTLINER SCHOOL BUS CHASSIS, HEAVY TRUCKS, AND THOMAS BUILT SCHOOL BUSES MANUFACTURED BETWEEN JULY 2002 AND JULY 3, 2007, EQUIPPED WITH BENDIX SR-7 SPRING BRAKE CONTROL VALVES. THE PARKER SCV BRASS 90 DEGREE SINGLE CHECK VALVES (SCV) WHICH ATTACH TO THE SUPPLY PORT OF A BENDIX SR-7 SPRI
ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN
CERTAIN MY 2004 FREIGHTLINER BUSINESS CLASS M2 AND THOMAS BUILT SAF-T-LINER C2 SCHOOL BUSES MANUFACTURED BETWEEN JULY 26 AND OCTOBER 29, 2004, EQUIPPED WITH A CATERPILLAR C-7 ENGINE AND BORG-WARNER KYS 4735 35480 55 ENGINE FAN. THE FAN SHROUD MAY BE DRAWN BACK INTO THE FAN AT HIGH ENGINE SPEEDS WHE
SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
ON CERTAIN TRUCKS, INCORRECT SPRINGS WERE INSTALLED IN THE EXHAUST PORT OF CERTAIN AIR MANAGEMENT UNIT (AMU) SOLENOID VALVES AND THEY MAY NOT TURN OFF AFTER ACTUATION.
PARKING BRAKE
CERTAIN 2004 AND 2005 THOMAS BUILT C2 SCHOOL BUSES AND FREIGHTLINER BUSINESS CLASS M2 HEAVY TRUCKS MANUFACTURED BETWEEN JUNE 2004 AND MARCH 2005. THE ANCHOR/PIVOT BOLT SUPPLIED WITH THE PARK BRAKE IS DEFECTIVE AND COULD FATIGUE FRACTURE PREMATURELY, RESULTING IN THE PARK BRAKE FAILING TO APPLY.
POWER TRAIN:MANUAL TRANSMISSION
ON CERTAIN TRUCKS EQUIPPED WITH MANUAL TRANSMISSION, THE TAPERED JOINT THAT ATTACHES THE SHIFTER TO THE TRANSMISSION MAY BECOME LOOSE MAKING IT DIFFICULT TO PUT THE TRANSMISSION INTO GEAR.
JUST BOUGHT THIS TRUCK FROM HUBBARD TRAILERS, IN ARIZONA, WITH A RECEIPT FROM HAVING BOTH REAR BRAKES REDONE. DROVE IT HOME THEN TOOK IT TO THE LOCAL FL DEALERSHIP (NAMPA, ID) TO GET AN OFFICIAL INSPECTION. ON INSPECTION THE ABS AND BRAKE LIGHTS WERE ON. WORK WAS DONE, AND I WAS TOLD EVERYTHING WAS FINE ON THE TRUCK RE:BRAKES. I DROVE IT HOME, ABOUT 30 MILES AND NO PROBLEM. FIRST TIME I TRIED TO TAKE IT OUT ON A TRIP, THE REAR CALIPER LOCKED UP. CALLED NAMPA FREIGHTLINER, MULTIPLE TIMES, WHILE STOPPED ON SIDE OF ROAD. THEY ADVISED TO BLEED THE BRAKES, WHICH I DID. STARTED OFF AGAIN, REAR CALIPER LOCKED UP, PULLED TRUCK OVER AND FOUND FIRE IN THE REAR UNDERCHASSIS.
Mileage: 133,000
DRIVING AT 60MPH HIGHWAY LIMIT. WITHOUT WARNING OR VIBRATION, FRONT PASSENGER WHEEL BEARING BROKE OFF, SENDING THE TIRE/WHEEL FLYING OFF THE HIGHWAY HILL, DOWN THE ACCESS ROAD, AND SMASHING AGAINST A BANK STONE WALL, AFTER IT BROKE THROUGH A 2ND STAND ALONE STONE WALL. LUCKY WE COULD STOP THE TRUCK WITHOUT FLIPPING OVER AND LUCKY FLYING WHEEL/TIRE DID NOT HIT ANY VEHICLES, AS IT HAPPENED DURING LUNCH TRAFFIC HOURS. BEARING COMPLETELY BROKE OFF. WAS MADE RESPONSIBLE FOR SECOND HAND COLLISION, PROPERTY DAMAGES, AND TXDOT $400 TOWING CHARGES. *TR
Mileage: 98,000
M2 106 MODEL STARTED PRESENTING MAJOR OIL LEAK ONE MONTH AGO. REPLACED OIL PAN GASKET, BUT DIDN'T CORRECT PROBLEM. AFTER MECHANIC VERIFICATION, IT TURNS OUT IT IS THE FRONT CRANKSHAFT OIL SEAL. MECHANIC STATED HE HAS SEEN QUITE A FEW FREIGHT MODELS EQUIPPED WITH THE CAT3126 WITH OIL LEAK PROBLEMS FROM THE SAME CRANKSHAFT OIL SEAL. *TR
Mileage: 190,000
DT: THE CONTACT STATED WHILE DRIVING VARIOUS SPEEDS, THE FUEL LINE ASSEMBLY BURST WITHOUT WARNING SPRAYING DIESEL FUEL ONTO THE VEHICLE AND THE HIGHWAY. THE CONTACT MANAGED TO PARK THE VEHICLE ON THE SIDE OF THE HIGHWAY WITHOUT FURTHER INCIDENT. THE CONTACT INSPECTED THE VEHICLE AND DETERMINED THE FUEL LINES WERE FRACTURED INTO AND NEEDED REPLACED. A NHTSA RECALL, #05V469000 WAS PERFORMED ON THE VEHICLE CONCERNING, THE FUEL SYSTEM HOWEVER, THE RECALL DID NOT REMEDY THE PROBLEM. THE DEALERSHIP WOULD NOT OFFER A SECOND REPAIR WITHOUT CHARGE UNDER THE RECALL. THE MANUFACTURER WAS ALERTED.
Mileage: 217,167
2004 FEIGHTLINER M2 .ON TUESDAY NOV. 1ST 2005 WITH NO WARNING WHATSOEVER MY RIGHT FRONT WHEEL CAME OFF WITH LUG NUTS AND BRAKE DRUM STILL ATTACHED NEARLY LOST TRUCK BUT KEPT IT STEADY UNTIL I COULD STOP IT .WHEEL BEARING AND SPINDLE FAILURE WAS SAID TO BE THE CAUSE. REPLACED WHOLE FRONT AXLE AND BOTH SIDES WHEEL BEARINGS UNDER WARRANTY. KEEP IN MIND THAT THIS WAS INTERSTATE POSTED SPEED OF 65 MPH. NOW AT 112000 MILES 42K LATER I GO TO GET NEW TIRES AND BALANCE AND WHAT DO YOU KNOW NOW THE DRIVER SIDE HAS GIVEN WARNING AND IT IS 1/8 INCH FROM DISASTER WHEEL BEARING AND SPINDLE AGAIN. HAVE FOUND NOTHING ON ANY RECALLS ON THESE DEFECTS. P.S. 75% OF OUR NATIONS SCHOOL CHILDREN ARE RIDING AROUND ON THIS SAME CHASSIS. *JB
Mileage: 70,000
(1) POOR ENGINEERING. (2) FRONT AXEL RATED CAPACITY IS INADEQUATE FOR VEHICLE (3) FREIGHTLINER SPECIALITY VEHICLES ADVISED OF SAFTEY ISSUE 06/04/04, & FREIGHTLINER ON 09/08/04. THEY HAVE TAKEN NO ACTION TO DATE. *AK
(1) DESIGN (2) PARKING BRAKE ALLOWS VEHICLE TO MOVE AS MUCH AS 4 INCHES AFTER SETTING. UNABLE TO HOOK-UP TRAILER WITHOUT 2 PEOPLE. DAMAGED HITCH. (3) FREIGHTLINER CLAIMS IT CAN NOT BE FIXED.*AK
THE FREIGHTLINER TRACTORS WE ARE NOW USING AT YELLOW TRANSPORTATION, IN NATIONWIDE SERVICE, HAVE A PROBLEM WITH THE FOOT BRAKES. THE BRAKES, WHEN APPLIED, ARE VERY SLOW TO RELEASE. I FEEL THIS COULD CAUSE A SERIOUS PROBLEM ON SLICK SURFACES. WE USUALLY PULL TWIN TRAILERS BEHIND THESE TRACTORS--AND THEY ARE SLEEPER CABS, TWO MAN OPERATION. THE BRAKES WILL OFTEN DRAG THE VEHICLE TO A STOP, EVEN WHEN NO PRESSURE IS BEING APPLIED.(AS WHEN COMING TO A RED LIGHT-THE LIGHT CHANGES,BRAKES ARE RELEASED, BUT THE VEHICLE CONTINUES TO SLOW AND WILL COME TO A STOP). *JB
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2004 Freightliner Business Class M2; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.