2005 Freightliner Business Class M2 Engine cooling Problems
- Complaints
- 1about this part
- Share
- 14%of 7 total for the year
- Median mileage
- 20,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the engine cooling of the 2005 Freightliner Business Class M2, 14% of the 7 complaints for this model year. Where a mileage was given, the median is 20,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“The contact owns a 2005 Freightliner BUSINESS CLASS M2. The contact stated that the heat fan wiring harness overheated when the vehicle was in the on position. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The VIN was not available. The failure mileage was 20,000.”
NHTSA complaint #10667090, filed 2014-12, 20,000 milesRelated service bulletins
- 10187830Feb 19, 2021Revised Technical Service Letter for Series 60 and Series 50 Camshaft Timing Specifications. Camshaft timing, valve lash, injector height, and Jake Brake lash are all very…
- 10141701Feb 26, 2018sb2062 Removing the Shipping Plate from the Fan Hub on ISB Engines
- 10141699Feb 26, 2018sb2059 Replacing Push-to-Connect Air Line Fittings with Brass Compression Fittings
- 10141698Feb 26, 2018sb2058 Early EPA07 QLD Radiator Replacement
- 10141675Feb 26, 2018sb2032 Gates PowerGrip Hose Clamps, Replacement
- 10141672Feb 26, 2018sb2028 Engine Coolant Changes
- 10030872Jul 1, 2009Freightliner: some trucks have been found with incorrect sealing of air intake duct assemblies, allowing unfiltered air to bypass the air cleaner. Loose duct connections or dirt…
- 10026123Jul 1, 2008Freightliner: cummins isb drive belt jumping. The poly-v serpentine drive belt may jump off one or more of the pulleys during operation.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2006 | 1 | 13% |
| 2005 | 1 | 14% |
Other parts of the 2005 Freightliner Business Class M2
2 complaintsFuel system
2 complaintsElectrical system
1 complaintsBody and structure
1 complaintsSuspension
1 complaintsVisibility (wipers, defrost, mirrors)
1 complaints
← All problems reported for the 2005 Freightliner Business Class M2
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology