2005 Acura MDX Engine cooling Problems
- Complaints
- 9about this part
- Share
- 5%of 180 total for the year
- Median mileage
- 43,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 9 complaints about the engine cooling of the 2005 Acura MDX, 5% of the 180 complaints for this model year. Where a mileage was given, the median is 43,500 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.
“I have a 2005 Acura MDX and felt the car noisy while driving after a while the vsa light came on and stayed on. Thank god I purchased an extended warranty because this happened 1 month after the manufacturers warranty expire. They had to replace the transmission at a cost of $3900.”
NHTSA complaint #10295675, filed 2009-12, 43,500 miles“The transmission cooler connection blew out of the radiator, unfortunately there is no oil pressure switch for transmissions so I had no idea that the trans fluid was pouring all over the road. Lucky for me I was just leaving the house and my friend saw it and stopped me. Upon looking at the part -it has only 3 threads and I have found out this is a common thing for MDX and pilot SUV's. I could have been in an accident due to the transmission failure that has resulted from this failure by others as I have seen on your site example:. …”
NHTSA complaint #10700949, filed 2015-03, 135,000 miles“Grinding noise on Acura MDX 2005 model. Had the car for two years when problem started. The dealer could never identify the problem. Only when the car was out of warranty did they finally say that the transmission had to be replaced. I am the original owner and my car has 75k plus, but this problem started way before. This repair will cost me at least $5000. I'm sure honda knew about this problem and decided to ignore it. I feel cheated! Honda must take responsibility for selling faulty cars and not owning up to it. …”
NHTSA complaint #10364252, filed 2010-11, 23,075 miles“It's unfortunate that honda motor co has not taken any corrective action to address the numerous problems with its Acura MDX transmission problem and I am calling for a full federal investigation along with a potential class action suit against honda. A vehicle of this calibre on a luxury line, costing thousands of dollars is supposed to live up to its reputation. To be further proactive, I ask all the mdxers for us to start a chain blog for Acura and the other car manufacturers to see how extensive these problems are. Acura has been less than cooperative during my interactions with them. …”
NHTSA complaint #10416226, filed 2011-07, 40,000 miles“While driving at a speed of approximately 65-70 MPH the car speedometer fell to 0 instantly and the car decelerated while the engine was still operating. Car was towed to dealership. With first incident (occured 1/18/05) the dealer could not idenitify or replicate problem. Car is currently at a different dealership being checked out for this reoccurance.”
NHTSA complaint #10133983, filed 2005-08, 7,800 milesRelated service bulletins
- 10177598Jun 3, 2020These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no…
- 10041772Oct 22, 2011Acura: the engine coolant temperature input in misinterpreted by the ecm/pcm/ the mil comes on.
- 10020481Jul 13, 2007Mil comes on with dtc and the engine runs roughly or stalls. *kb updated 08-15-07.
- 10021177Oct 16, 2006Trouble shooting b-can and f-can dtc's.
- 10018323Nov 16, 2005Engine oil leak(s). Dealer visit request.
- 10018115Sep 16, 2005Engine oil leaks.
- 10018036Jul 1, 2005Engine won't start at all; or does it intermittently. Check immobilizer system status with the hds. Acura. Servicenews.
- 10016279May 16, 2005Alternator condition (no or low output) dealer visit request.
- 10016260May 16, 2005Cranks won't start, immobilizer light flashes.
- 10014776Jan 16, 2005Alternator condition.
Engine cooling: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2020 | 19 | 8% |
| 2019 | 30 | 16% |
| 2018 | 19 | 11% |
| 2017 | 18 | 7% |
| 2016 | 10 | 3% |
| 2013 | 1 | 3% |
| 2012 | 2 | 3% |
| 2011 | 1 | 1% |
| 2009 | 3 | 6% |
| 2008 | 2 | 4% |
| 2007 | 4 | 4% |
| 2006 | 2 | 2% |
| 2005 | 9 | 5% |
| 2004 | 13 | 8% |
| 2003 | 16 | 8% |
| 2002 | 14 | 7% |
| 2001 | 19 | 8% |
Other parts of the 2005 Acura MDX
87 complaintsAir bags
39 complaintsElectrical system
18 complaintsBrakes
14 complaintsElectronic stability control
11 complaintsOther or unknown
10 complaintsSteering
9 complaintsVehicle speed control
9 complaintsEngine
7 complaintsSeat belts
7 complaintsEquipment
5 complaintsBody and structure
4 complaints
← All problems reported for the 2005 Acura MDX
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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