2018 Acura MDX Engine cooling Problems
- Complaints
- 19about this part
- Share
- 11%of 169 total for the year
- Median mileage
- 92,516miles
- Trend
- RisingComplaints filed in the last 3 full calendar years are at least 25% higher than in the 3 years before.
NHTSA recorded 19 complaints about the engine cooling of the 2018 Acura MDX, 11% of the 169 complaints for this model year. Where a mileage was given, the median is 92,516 miles. 1 of these say a crash was involved, according to the filers. 2 recall campaigns on record are filed under a similar system.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Odometer Fraud. The contact purchased a 2018 Acura MDX. It was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the mileage was 85,000. The contact stated that on the day of the purchase; after refueling the vehicle and then attempting to pull out of the gas station, the Emissions, check engine, and parking brake warning lights illuminated on the instrument panel. …”
NHTSA complaint #11730103, filed 2026-04, 225,802 miles“The contact owns a 2018 Acura MDX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling). The contact stated that while driving at 30 MPH, the vehicle jerked and hesitated and failed to accelerate as intended while depressing the accelerator pedal. No warning lights were illuminated. The local dealer was not contacted, and the vehicle was not repaired. The contact stated that the failure persisted. …”
NHTSA complaint #11666729, filed 2025-06, 65,000 miles“The contact owns a 2018 Acura MDX. The contact received notifications of NHTSA Campaign Numbers: 23V858000 (Fuel System, Gasoline) and 23V751000 (Engine and Engine Cooling); however, the parts to do the recall repairs were not yet available. The contact stated that occasionally while attempting to accelerate from a stop, the vehicle occasionally stalled while the accelerator pedal was depressed. No warning lights were illuminated. The local dealer was contacted. The vehicle was not repaired. …”
NHTSA complaint #11646043, filed 2025-03, 100,000 miles“The contact owns a 2018 Acura MDX. The contact stated that at an idle stop, he allowed another vehicle to complete a turn. As the contact depressed the accelerator pedal to make a left turn, the vehicle came to an abrupt stop which caused the vehicle to be rear ended by another vehicle. The air bags did not deploy upon impact. No injuries were reported and a police report was not filed. The vehicle was able to drive away from the scene of the accident. The dealer nor the manufacturer had yet to be notified of the failure. …”
NHTSA complaint #11629655, filed 2024-12, 98,031 miles“The contact owns a 2018 Acura MDX. The contact stated that while driving at various speeds, the vehicle went into LIMP Mode and failed to exceed 35-60 MPH. The check engine warning light was flashing. The driver pulled over to the side of the road. The vehicle was restarted, reset, and operated as intended. The vehicle was taken to the dealer, where the failure could not be duplicated, and the failure persisted. The contact's brother, a certified technician, advised the contact not to turn off the vehicle after the failure occurred to prevent the system from resetting. …”
NHTSA complaint #11759230, filed 2026-08, 87,000 milesRelated recalls
- 23V751000Nov 13, 2023Honda (American Honda Motor Co.) is recalling certain 2015-2020 Acura TLX, 2016-2020 Acura MDX, 2016 and 2018-2019 Pilot, 2017 and 2019 Ridgeline, and…Covers: Acura MDX 2016–2020, TLX 2015–2020, Honda Pilot 2016, 2018–2019 +2 more
- 19V298000Apr 12, 2019Honda (American Honda Motor Co.) is recalling certain 2018-2019 Acura MDX and Honda Pilot vehicles and 2019 Acura RLX, RLX Sport Hybrid, TLX and Honda Odyssey…Covers: Acura MDX 2018–2019, Honda Pilot 2018–2019, Odyssey 2019 +4 more
Related service bulletins
- 10248978Jan 10, 2024Service Bulletin - The MIL comes on during vehicle operation due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks…
- 10247626Dec 15, 2023Service Bulletin - Due to variations in the purge control solenoid valve spring, the valve wears unevenly and intermittently sticks. This may result in setting DTC P0441…
- 10235126Apr 20, 2023Service Bulletin - The engine will not crank on the initial startup attempt after the vehicle has been exposed to precipitation and then freezing temperatures. Water can enter…
- 10233292Mar 20, 2023Service Bulletin - Under certain circumstances, after coming to a stop and engaging idle stop the vehicle may not restart automatically due to excessive cylinder pressure and/or…
- 10232976Mar 10, 2023Product Update - Under certain circumstances, after coming to a stop and the idle stop feature engaging, the vehicle may not automatically restart. Acura is providing a product…
- 10232974Mar 10, 2023Warranty Extension - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart.
- 10232972Mar 10, 2023Warranty Extension - Warranty Extension reimbursement form for engine idle stop repairs made before the warranty extension notice date.
- 10232965Mar 1, 2023Service Bulletin - The engine will not crank on the initial startup attempt after the vehicle has been exposed to precipitation and then freezing temperatures.
- 10231058Jan 27, 2023Service Bulletin - Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically restart. Typically, the customer can…
- 10229689Jan 6, 2023Dealer Message - During development, the idle stop enable criteria was mis-set allowing idle stop to improperly engage while battery health is low. Under certain circumstances…
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 2018 Acura MDX
51 complaintsEngine
35 complaintsElectrical system
28 complaintsForward collision avoidance
23 complaintsTransmission and drivetrain
23 complaintsOther or unknown
21 complaintsLane departure
18 complaintsVehicle speed control
14 complaintsBrakes
9 complaintsVisibility (wipers, defrost, mirrors)
8 complaintsExterior lighting
5 complaintsSeats
4 complaints
← All problems reported for the 2018 Acura MDX
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 28, 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