2006 Freightliner Century Engine cooling Problems
- Complaints
- 4about this part
- Share
- 67%of 6 total for the year
- Median mileage
- 91,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the engine cooling of the 2006 Freightliner Century, 67% of the 6 complaints for this model year. Where a mileage was given, the median is 91,500 miles. 2 recall campaigns on record are filed under a similar system.
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.
“Freightliner Century with 14l 60 series engine has had exhaust manifold replaced twice. Both new manifolds still leaking exhaust. Cannot close vents in truck. No option to close vents on switch panel. Exhaust coming into cab. Clean air intake for cab is under the hood in the direct line of manifold leakage.”
NHTSA complaint #10158761, filed 2006-06, 38,000 miles“Been in this Freightliner,Century, with detroit power, have been experiencing headaches(severe) sinus issues,can smell exhaust in truck,tired all the time,eyes bothering me, dry throat,been this truck for 3 months now. Suspect fumes coming from air vents, cant shut it off.”
NHTSA complaint #10209834, filed 2007-11, 257,000 miles“Just got a 2006 Freightliner Century with 14l 60 series detriot, turbo clamp was loose, both flex pipes leaked within 2 months, exhaust manifold on engine would not seal, clamps on intake on left side of engine were loose creating exhaust leak. New manifold will not seal.”
NHTSA complaint #10157945, filed 2006-05, 23 miles“The contact owns a 2006 Freightliner Century. The vehicle was being serviced for an unrelated failure when the contact was advised that the vehicle was included in two recalls (NHTSA campaign id numbers 07v473000: engine and engine cooling: cooling system: radiator assembly and 09v357000: steering: rack and pinion). The dealer advised that the vehicle could not be repaired because the parts needed to make repairs were unavailable. The contact was concerned that the dealer was unable to obtain any information from the manufacturer as to when the parts would become readily available. …”
NHTSA complaint #10345839, filed 2010-07, 145,000 milesRelated recalls
- 12V074000Feb 28, 2012Daimler trucks (dtna) is recalling certain model year 2006-2013 freightliner, sterling, and western star vehicles, equipped with detroit diesel epa07 and…Covers: Freightliner Century 2006–2013, Columbia 2006–2013, Business Class M2 2006–2013 +7 more
- 11V146000Mar 3, 2011Daimler trucks (dtna) is recalling certain model year 2006 through 2011 freightliner, cascadia, century, columbia fld, and m2, sterling 9500, and western star…Covers: Freightliner Century 2006–2011, Columbia 2006–2011, Western Star 4900 2006–2011 +4 more
Related service bulletins
- 10129705Apr 17, 201615TS3 Detroit? Coolant Change From Nitrite Organic Acid Technology
- 10126806Sep 14, 201515-028 New Detroit Coolant Line SRTs
- 10126796Sep 14, 2015_NewDetroitCoolantLineSRTs
- 10129704Apr 14, 201515TS10Rev DD Engine Platform Coolant Filter
- 10124133Oct 5, 20141005-14 Oil Coolant Module
- 10124117Oct 1, 2014sb2080 Australian CST M1400 Isolated Radiator Retrofit
- 10124185Aug 9, 2014809-14 FMI 3, 4, 5, 31: Diesel Exhaust Fluid System Circuit Failed
- 10124182Aug 7, 2014807-14 FMI 8 SCR Inlet Temperature Signal Spike
- 10128808Jul 15, 2014715-14 Symptom Diagnostics - Coolant Los
- 10128809Jul 13, 2014713-14 Symptom Diagnostics - Combustion Gas in Coolant
Engine cooling: other model years
Other parts of the 2006 Freightliner Century
← All problems reported for the 2006 Freightliner Century
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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