VehicleVerdict

2004 Freightliner Business Class M2 problems

Verdict · NHTSA data

Limited data — recalls on file

NHTSA has just 8 complaints on file for the 2004 Freightliner Business Class M2 — too few to judge reliability from owner reports alone — but 10 recall campaigns apply to this year, so any used example should have its VIN checked for completed recall work.

8

NHTSA complaints

10

Recalls

1

Investigations

1

Crash-involved

1

Fires reported

0

Injuries

0

Deaths

NCAP overall

How does 2004 compare to other Business Class M2 years?

See all Business Class M2 years to avoid →

What are the most common 2004 Freightliner Business Class M2 problems?

ComponentComplaintsShare
Brakes338%
Suspension225%
Engine113%
Fuel System113%
Tires & Wheels113%

Does the 2004 Freightliner Business Class M2 have recalls?

10 NHTSA recall campaigns on file. Recall repairs are free at franchised dealers.

11V478000Fuel SystemSeptember 16, 2011 · 73,500 units

Defect

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. THE PLASTIC LOW PRESSURE FUEL LINE BETWEEN ENGINE MOUNTED FUEL FILTER AND ENGINE BLOCK MAY DEVELOP A SUBSTANTIAL DIESEL FUEL LEAK.

Consequence

THIS COULD CREATE A ROAD HAZARD INCREASING THE RISK OF A CRASH. FUEL LEAKAGE, IN THE PRESENCE OF AN IGNITION SOURCE, COULD RESULT IN A FIRE.

Remedy

DAIMLER TRUCKS WILL NOTIFY OWNERS AND THE REMEDY WILL BE PERFORMED BY DETROIT DIESEL CORPORATION AUTHORIZED REPAIR FACILITIES. VEHICLES WILL BE INSPECTED AND THE PLASTIC LOW PRESSURE FUEL LINE WILL BE REPLACED WITH A STEEL LOW PRESSURE FUEL LINE. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. AN INTERIM LETTER WAS MAILED TO OWNERS ON OCTOBER 28, 2011. THE SAFETY RECALL BEGAN ON FEBRUARY 21, 2012. OWNERS MAY CONTACT DAIMLER TRUCKS AT 1-800-547-0712.

08V668000Fuel SystemDecember 17, 2008 · 24,650 units

Defect

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 HIGH PRESSURE FUEL LINES AND TRANSFER TUBES MAY FATIGUE AND FRACTURE.

Consequence

A FRACTURED FUEL LINE MAY LEAK DIESEL FUEL POSSIBLY RESULTING IN A FIRE OR FUEL MAY BE SPILLED ON THE ROAD CAUSING A SLIPPERY SURFACE, POSSIBLY RESULTING IN A VEHICLE CRASH.

Remedy

DETROIT DIESEL WILL NOTIFY OWNERS AND THE VEHICLES WILL BE REPAIRED WITH MORE ROBUST LINES AND VIBRATION DAMPERS FREE OF CHARGE. REPAIRS WILL BE PERFORMED BY AUTHORIZED DETROIT DIESEL DISTRIBUTORSHIPS. THE RECALL BEGAN ON MARCH 9, 2009. OWNERS MAY CONTACT DETROIT DIESEL 1-313-592-3708 OR DTNA TOLL-FREE AT 1-800-547-0712 FOR MORE INFORMATION.

08V137000TransmissionMarch 25, 2008 · 28,764 units

Defect

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 COMPANY 6,000 THROUGH 8,000 POUND FRONT AXLES UTILIZING A FOUR PIECE SPINDLE-NUT SET. THESE AXLE ASSEMBLIES MAY HAVE BEEN PRODUCED WITH A THIN SPINDLE NUT WHICH MAY LEAD TO INCORRECT END PLAY, CONE SPIN, EXCESSIVE HEAT, DEGRADATION OF LUBRICATION, WEAR OF THE SPINDLE NUT AND BEARING JOURNAL, OIL CONTAMINATION WITH METAL SHAVINGS, AND PREMATURE BEARING FAILURE.

Consequence

CONTINUED OPERATION MAY LEAD TO WHEEL SEPARATION AND POSSIBLY A VEHICLE CRASH.

Remedy

DAIMLER TRUCKS WILL NOTIFY OWNERS AND WILL REPAIR THE VEHICLES FREE OF CHARGE. THE RECALL BEGAN ON JANUARY 8, 2009. OWNERS MAY CONTACT DAIMLER TRUCKS AT 1-800-547-0712.

07V302000BrakesJuly 16, 2007 · 75,000 units

Defect

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 SPRING BRAKE MODULATING VALVE CAN BREAK APART. PIECES OF THE PARKER SCV CAN BECOME LODGED INSIDE THE SR-7 SPRING BRAKE MODULATING VALVE, POTENTIALLY CAUSING EITHER LEAKAGE OUT OF THE SR-7 VALVE OR PREVENTING AIR FROM PROPERLY EXHAUSTING FROM THE SR-7 VALVE. ALSO, DUE TO A MANUFACTURING DEFECT IN THE INTERNAL RUBBER CHECK VALVE INSIDE THE SR-7 SPRING BRAKE MODULATING VALVES, THE VALVES CAN BECOME DEFORMED AND NOT SEAT PROPERLY.

Consequence

THESE CONDITIONS COULD EITHER RESULT IN LEAKAGE AND CAUSE A DELAY IN THE APPLICATION OF THE SPRING BRAKE WITHOUT WARNING OR POSSIBLY LEAD TO UNINTENDED VEHICLE ROLLAWAY OR BRAKE DRAG WHICH COULD RESULT IN A VEHICLE CRASH, PERSONAL INJURY, OR DEATH.

Remedy

FREIGHTLINER WILL NOTIFY OWNERS AND REPAIR THE VEHICLES FREE OF CHARGE. THE RECALL BEGAN ON JANUARY 11, 2008 TO FREIGHTLINER, STERLING, AND FREIGHTLINER CUSTOM CHASSIS OWNERS; TO THOMAS BUILT BUS OWNERS ON FEBRUARY 1, 2008. OWNERS CAN CONTACT FREIGHTLINER AT 1-800-547-0712.

05V468000BrakesOctober 5, 2005 · 3,850 units

Defect

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.

Consequence

IF THE PARK BRAKE ANCHOR BOLT FATIGUES AND ULTIMATELY FRACTURES, THE PARK BRAKE MAY NOT FUNCTION AND THERE MAY BE NO INDICATION TO THE DRIVER OF THE MALFUNCTION WHEN THE PARK BRAKE IS SET. THIS MAY CAUSE THE VEHICLE TO ROLL AWAY WITHOUT WARNING, WHICH COULD RESULT IN A CRASH.

Remedy

FREIGHTLINER WILL NOTIFY ITS OWNERS AND INSPECT AND REPLACE DEFECTIVE ANCHOR BOLTS FREE OF CHARGE. THE RECALL BEGAN ON MARCH 7, 2006. OWNERS MAY CONTACT FREIGHTLINER AT 1-800-547-0712.

05V393000EngineSeptember 6, 2005 · 1,395 units

Defect

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 WHEN THE FAN CLUTCH ENGAGES. DUE TO REDUCED CLEARANCE, HEAVY CONTACT BETWEEN THE FAN AND THE SHROUD MAY CAUSE THE FAN BLADE TO FRACTURE.

Consequence

THE FAN MAY FRACTURE AND PIECES MAY SEPARATE FROM THE FAN BLADE. IN CERTAIN CONDITIONS, THIS MAY PRESENT A HAZARD TO PEOPLE NEAR THE VEHICLE WITH THE HOOD OPEN AND THE ENGINE RUNNING.

Remedy

FREIGHTLINER WILL NOTIFY ITS CUSTOMERS AND REPLACE THE ENGINE FAN WITH A FAN THAT HAS A DIFFERENT MOUNTING OFFSET FREE OF CHARGE. THE RECALL IS EXPECTED TO BEGIN ON JANUARY 16, 2006. OWNERS MAY CONTACT FREIGHTLINER AT 1-800-547-0712.

05V126000EngineMarch 30, 2005 · 3,568 units

Defect

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.

Consequence

THIS CAN RESULT IN FAN BREAKAGE, RESULTING IN VEHICLE DAMAGE OR PERSONAL INJURY.

Remedy

DEALERS WILL REPLACE THE ENGINE COOLING FAN FREE OF CHARGE. THE RECALL BEGAN ON JUNE 8, 2005. OWNERS MAY CONTACT FREIGHTLINER AT 1-800-547-0712.

04T023000Tires & WheelsDecember 22, 2004 · 4,000 units

Defect

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.

Consequence

RAPID AIR LOSS CAN RESULT IN LOSS OF VEHICLE CONTROL AND A VEHICLE CRASH CAN OCCUR.

Remedy

MICHELIN WILL NOTIFY ITS CUSTOMERS AND REPLACE THE TIRES FREE OF CHARGE. THE RECALL BEGAN DECEMBER 27, 2004. OWNERS WHO DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MICHELIN AT 888-622-2306.

04V220000BrakesMay 6, 2004 · 1,700 units

Defect

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.

Consequence

DEPENDING ON THE FUNCTION AFFECTED, THIS COULD RESULT IN REAR SUSPENSION AIR PRESSURE LOSS, MALFUNCTION OF THE ENGINE BRAKE, PERMANENT ENGAGEMENT OF THE REAR AXLE DIFFERENTIAL LOCK, OR PREVENT ENGAGEMENT OF THE FIFTH WHEEL SLIDE LOCK. IF THE WARNING INDICATORS IN THE DASH ARE NOT HEEDED, A CRASH COULD OCCUR.

Remedy

DEALERS WILL REPLACE THE AFFECTED VALVES. THE RECALL BEGAN JUNE 29, 2004. OWNERS SHOULD CONTACT FREIGHTLINER AT 1-800-547-0712.

04V205000TransmissionMay 4, 2004 · 14,000 units

Defect

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.

Consequence

IF SHIFT LEVER DETACHMENT OCCURS, THA ABILITY RO ACCELERATE OT MAINTAIN SPEED WILL BE LOST, INCREASING THE RISK OF A CRASH.

Remedy

DEALERS WILL RE-SECURE THE SHIFT LEVER TO THE TRANSMISSION USING THREADLOCK AND RE-TORQUING THE FASTENING BOLT. OWNER NOTIFICATION BEGAN ON MAY 21, 2004. OWNERS SHOULD CONTACT FREIGHTLINER AT 1-800-547-0712.

Consumer complaints filed with NHTSA

Representative excerpts, cleaned of personal information. These are consumer statements, not verified defects.

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…

Complaint filed with NHTSA · Brakes · September 30, 2016 · fire

(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

Complaint filed with NHTSA · Suspension · March 6, 2004

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…

Complaint filed with NHTSA · Engine · April 1, 2013

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…

Complaint filed with NHTSA · Tires & Wheels · December 3, 2009 · crash

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…

Complaint filed with NHTSA · Fuel System · October 12, 2006

2004 Freightliner Business Class M2 — common questions

Is the 2004 Freightliner Business Class M2 reliable?

The record is thin — 8 NHTSA complaints — so owner-report data can't strongly confirm reliability either way, though 10 recalls should be verified as completed.

Does the 2004 Freightliner Business Class M2 have recalls?

Yes — NHTSA lists 10 recall campaigns affecting the 2004 Freightliner Business Class M2. Recall repairs are free at franchised dealers; check the VIN at nhtsa.gov/recalls to confirm the work was done.

Is the 2004 Freightliner Business Class M2 under NHTSA investigation?

NHTSA opened one investigation into this model year; all are now closed.

Related

Based on NHTSA ODI data through June 2026. Complaints are consumer-reported and unverified. Updated July 5, 2026.

Compiled by Sharon Ben-Moshe, Founder.