general problems of the 2016 Acura MDX - part 2

132 problems related to engine and engine cooling have been reported for the 2016 Acura MDX. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2016 Acura MDX based on all problems reported for the 2016 MDX.

36 Engine And Engine Cooling problem

Failure Date: 05/20/2025

***this is a resubmit with corrected information*** I purchased a used 2016 Acura Mdx from a family member, and shortly afterward began experiencing a rhythmic metallic knocking noise under load, particularly at low rpms (e. G. , accelerating in low gears or when the engine is bogged). The noise is not present at idle or during coasting, and it closely matches the symptoms described in recall 23v-751, which addresses premature connecting rod bearing wear that may lead to engine failure in certain Honda and Acura vehicles. However, my vehicle’s VIN is not included in the existing recall. The knocking has persisted across several thousand miles and multiple oil changes. I recently inspected the drained oil and found metallic sparkles/particles, which may indicate active bearing wear. There has been no check engine light, and the vehicle has received on-time oil changes using high-quality synthetic oil, with immediate mechanical inspection when the noise first appeared. I know for certain the previous owner maintained the vehicle properly, as he is a family member and I occasionally helped with maintenance myself. Based on the symptom pattern, operating conditions, and consistency with the failure mode described in 23v-751, I believe this vehicle may be affected by the same underlying defect, but is excluded due to an overly narrow recall scope. I am submitting this complaint in support of recall query rq24-013, which is currently under review to determine whether Honda failed to include all affected vehicles. I am concerned this poses a long-term safety and reliability risk, and that vehicles like mine are being improperly excluded from coverage. It is available for inspection. I am deeply concerned for my significant other to drive my vehicle in any capacity, and myself as well. I have videos as well. Please reach out if you need them because the bearing has not spun out yet.

37 Engine And Engine Cooling problem

Failure Date: 05/15/2025

The vehicle frequently experiences problems while idling at red lights or stop signs. Specifically, the engine suddenly shuts off after displaying a message that "idle mode is unavailable. " this has occurred multiple times, and on five separate occasions, the vehicle became completely immobile, requiring towing to the nearest mechanic. Initially, I had the flywheel and starter motor replaced, which cost me approximately $5,000. However, just three months later, the same issue reappeared. Most recently, while driving home from work, the idle mode failed again at a stop sign, and the engine stopped running. I contacted Acura/Honda regarding this issue, but they informed me that it is not their responsibility. At this point, I am unsure how to proceed or where to seek a reliable fix, and I am concerned about the safety implications of this recurring failure.

38 Engine And Engine Cooling problem

Failure Date: 05/14/2025

Engine shut off due to rod bearing failure.

39 Engine And Engine Cooling problem

Failure Date: 05/09/2025

This specific vehicle has an issue with the starter and flywheel breaking up for no reason. After being replaced twice, they were broken again in three months. The suspension has also been broken many times, and even after replacing the entire four sides, it still did not fix the problem. It also produces a rubber smell when driven over than 1 hour non stop.

40 Engine And Engine Cooling problem

Failure Date: 03/31/2025

We have a 2016 Acura Mdx. The connecting rod bearing caused the engine to be damaged, resulting in a knocking noise, and decreased engine output. This resulted in the engine needing to be replaced. The reason for the engine failures was the exact issue in NHTSA recall 23v-751. While our vehicle is the same year, make and model of the recall, we are being told that because our manufactured date falls a few months outside of this recall, Honda will not pay for the repairs. We therefore had to pay for the repairs out of pocket in the amount of $6,170. 59. We are asking the NHTSA to expand the recall as this failure obviously occurred outside the previously issued recall window.

41 Engine And Engine Cooling problem

Failure Date: 03/24/2025

I drive a 2016 Acura Mdx, with less than 80k mileage. My car has an idle stop feature which was not working and I was having trouble starting my car in the mornings when it was cold. I assumed the battery was getting low, replaced to a new battery and the idle stop began working again momentarily. However, after coming to a stop and the idle stop feature engages, the vehicle was not always automatically restarting. More than once a day it turns off engine as intended with idle stop, but then my car shifts into neutral and the engine fully dies. I'm left at stop lights or stop signs with a car that is off and will not restart. The last instance I was almost hit by a car when the light turned green and I could not drive forward. I have to shift into park, turn the on/off button, press my foot on the brake and push on/off button 2-3 times to get the car to start back up. All of this on a battery that’s less than a week old. More often then not the idle stop is not working at all. I’m left with a message on my dashboard “auto engine idle stop unavailable. ” my VIN was not listed under the Acura sb to “update the pgm-fi software that may affect the idle stop operation and starter under certain conditions. ”.

42 Engine And Engine Cooling problem

Failure Date: 03/10/2025

My Acura Mdx 2016 has always had oil changes on time . Also only 93 octane gas . Online there are 100’s of people complaining about my issue which there is a recall for same year make and model but my VIN is not included. The recall is for rod knock , and this is what I’m experiencing right now out of nowhere. And Acura will not own up to it very upset . This is a very dangerous situation that can cause an accident with my family in the vehicle . Do to engine lock up .

43 Engine And Engine Cooling problem

Failure Date: 03/09/2025

Due to a manufacturing defect of the engine crankshaft, the connecting rod bearing prematurely wore and could seize. This is a recall for 2016 Mdx v6 engines, my VIN is not included for some reason.

44 Engine And Engine Cooling problem

Failure Date: 03/05/2025

My Acura Mdx 2016, when stopped in traffic or at a red light will randomly shut down or switch to neutral. It started 2-3 years back. This has happened frequently last few months. Last time I was stuck in the exit of a parking garage blocking the exit. After around 20-30 mins the car decided to start on its own. I took the car directly to a dealer who found no issues with the car. I had the battery replaced recently with a new battery upon searching the internet, I found this link where each person is describing the same issue [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

45 Engine And Engine Cooling problem

Failure Date: 03/02/2025

My vehicle is showing the exact same symptoms that the 2016-2018 Mdx fuel pump recall is stating but my VIN number is not part of the vehicles being recalled. I reached out to Acura relations and unfortunately, they cannot provide authorization to repair my fuel pump even though my vehicle falls under the same years that this model is being recalled for. I went to an independent shop to try and understand what the problem with my vehicle is and I was told that the high pressure fuel pump seems to be failing and was asked why I have not taken the vehicle to the dealership for the fuel pump recall. Due to this issue I am unable to properly use my vehicle. If I step on the accelerator too hard, the vehicle gets engine misfires and immediately goes on limp mode.

46 Engine And Engine Cooling problem

Failure Date: 02/01/2025

The engine light came on more than 12 times in the past 3 months. I tried to have the dealer check, but they found nothing. Then the light started to of on and off every time I drive in the rain.

47 Engine And Engine Cooling problem

Failure Date: 01/22/2025

Recall 23v-751 affecting certain or maybe all 2016 Acura Mdx sh-awd connecting rod bearing failure. The vehicle came to a sudden stop on the freeway after a loud terrible sound from the engine. This left my wife and child on a freeway exit ramp with no way to navigate the car to safety. The vehicle won't start, it makes a terrible clanging noise and stops. It has a seized connecting rod bearing and now a broken connecting rod and several holes punched from the broken rod. It was immediately towed to an Acura service center where it was confirmed. Recall 23v-751 described this failure exactly yet my car VIN is not included in the recall even though it is clearly affected by that recall. Acura client relations refused to add the VIN even after saying they would if the problem was confirmed by an Acura service technician which it was but they refuse to add the VIN and repair the SUV.

48 Engine And Engine Cooling problem

Failure Date: 01/18/2025

“emissions system problem” warning light has lit up on dashboard twice. This was checked and found to be a faulty code both times however, the second time it occurred, it correlated with the sway bars needing to be replaced.

49 Engine And Engine Cooling problem

Failure Date: 01/18/2025

What component or system failed or malfunctioned, and is it available for inspection upon request? the motor's rod bearing spun. It is available for inspection. How was your safety or the safety of others put at risk? the failure could have created enough friction between the bearing sleeve, rod and/or journal bearing to seize the motor and the drivetrain while driving. Has the problem been reproduced or confirmed by a dealer or independent service center? yes the vehicle was taken to the Acura dealership to be inspected, diagnosed and repaired. There is a recall for the same year, make and model but my vehicle's VIN is not included in the recall. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? the vehicle has only been inspected by the Acura dealership. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? there was a check engine light that produced code p0430 (catalyst system efficiency below threshold bank 2) and p0306 (cylinder 6 misfire detected). The vehicle had a loss of power and troubles accelerating under load. The first time the problem was noticed was January 18th, 2025.

50 Engine And Engine Cooling problem

Failure Date: 01/16/2025

Loud clicking sound, engine light blinking, car was shaking horribly almost caused an accident.

51 Engine And Engine Cooling problem

Failure Date: 01/16/2025

The contact owns a 2016 Acura Mdx. The contact stated while driving 20 mph, there was a loud knock sound coming from the engine compartment, and afterwards the vehicle lost motive power. The contact was able to coast to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the connecting rod bearing in cylinder #3. The vehicle was repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 23v751000 (engine and engine cooling); but the VIN was not included. The manufacturer was notified of the failure, and a claim was opened; however, the claim was later denied. The failure mileage was 122,000.

52 Engine And Engine Cooling problem

Failure Date: 01/13/2025

I was driving down the road & without any warnings my car suddenly loss power. Engine started a really bad knocking sound then stalled out , took to certified mechanic and he told me I need a new engine. Prior to this there were no boarding likes or issues related to the car.

53 Engine And Engine Cooling problem

Failure Date: 01/07/2025

Engine knocking noise, irritable shaking while on road, dangerous driving conditions. Engine failed and diagnosed at Acura dealership as failing bearings and connector rod. This issue is under investigation NHTSA action number: rq24013 and I am currently being forced to pay out of pocket for the repair amounting to several thousand dollars. Acura needs to recall these engines now and get it fixed. This driving condition is extremely unsafe, the entire car shakes uncontrollably. This car was bought brand new from dealership by myself. 1 owner. Always serviced at Acura or Honda dealerships.

54 Engine And Engine Cooling problem

Failure Date: 01/01/2025

I have a 2016 Acura Mdx with only 120,000 miles on it. Recently I started hearing a knock coming from the engine. I have taken it to three different mechanics, including an Acura dealership mechanic. I was informed by all three to not drive the car due to the fact that it was a rod bearing defect/problem. They all commented that I was lucky that it had not thrown a rod or I could have been injured or possibly had my engine freeze up while driving injuring myself or someone else. After some thorough investigation/research, I have been informed that my make and model has been recalled for the same issue, unfortunately, my VIN number is not included in the recall for whatever reason.

55 Engine And Engine Cooling problem

Failure Date: 12/20/2024

While driving on an interstate highway at 73 mph, under cruise control, at night, as the road started to incline up a hill my vehicle started losing power. The highway is two lanes each way, and I was in the left-hand lane passing a slower vehicle that was in the right-hand lane. There were cars behind me in my lane. When my car started losing power, the check-engine light came on along with some other indicators. I attempted to maintain speed by depressing the accelerator, but the car continued to slow down. It was nighttime when this happened, on a pitch-black highway that had been freshly paved. I was able to finally get behind the car I had been attempting to pass and was then able to get into the emergency lane and stop. My car was making a ticking noise. I turned off the car, opened the hood, but it all looked fine. I looked under the car - there were no fluids running out of the car. I checked the oil, and it was at the full mark on the dipstick - I had changed the oil about 1000 miles prior to this event. When I took the car to a local Acura dealer, they told me that the noise I was hearing was "rod knock", and that it would cost about $8000 to repair by purchasing a short block and having them install it. When I started researching the issue I learned that some 2016 Acura Mdxs have a known issue of incorrect rod bearing size, but that my vehicle is excluded because it was evidently manufactured before a certain date. My car has only 125,116 miles on it. It is maintained meticulously. Please investigate.

56 Engine And Engine Cooling problem

Failure Date: 12/19/2024

Problem started with check engine light coming on, then going off, then coming on again followed by what seemed like all system failure lights getting reported. A clicking/rattling started to be heard in the engine. When driving the vehicle to the dealer to get it inspected the vehicle engine cut out while cruising at 45 mph. I was able to roll to a stop on the side of the road luckily, it would not start and needed a tow to a more local related dealer (Honda) repair. Honda repair did not move past reading the codes, so I transported the vehicle via a service to the nearest Acura dealer, where they diagnosed the internal rod problem, with the fix being a replacement engine. The vehicle remains at this Acura dealer service.

57 Engine And Engine Cooling problem

Failure Date: 11/26/2024

The car suddenly shut off when I was on the red light wit the idle stop.

58 Engine And Engine Cooling problem

Failure Date: 11/24/2024

Driving on interstate 80, car began to make a loud noise, began to lose power and smoke was pouring out of the engine. No check engine lights came on. Pulled over immediately and turned off engine, and smoking continued. Car was in a unsafe location and we had to wait an hour with traffic very close for a tow truck. Large quantities of oil leaked out of the engine. Car was towed to niello Acura in roseville CA. They diagnosed catastrophic engine failure. Large hole in oil pan and wrist pin found lodged between a/c compressor bracket and engine block. Wrist pin secures teh piston to the connecting rod (there is a recall on Acura Mdx's for this but my car was not included) needs new engine. All maintenance was up to date. 78k miles on the engine, had just been serviced at 75k. Purchased at 18k as a certified used vehicle.

59 Engine And Engine Cooling problem

Failure Date: 11/23/2024

While my teenage son was driving on busy interstate highway the engine began making extremely loud noises and smoking while losing power. Driver was unable to make it to a safe exit and had to pull over with limited shoulder, in a very dangerous spot. All oil leaked out of the engine an onto the roadway, also a hazardous and dangerous situation. Car was towed to Acura dealership and inspected. Catastrophic engine damage - part of the engine rod assembly was launched through the oil pan and lodged in the air conditioning compressor. Vehicle had 87k miles and all service was performed. Complaints that the engine was lagging and making noises at low rpm's had been expressed to Acura for years. I was told that unless a check engine light came on there was no way to know what was wrong.

60 Engine And Engine Cooling problem

Failure Date: 11/10/2024

I was driving my 2016 Acura Mdx (approximately 87,000 miles) at around 60 mph on the freeway when the engine began making a metallic clanking noise. Shortly after, the check engine light started flashing, and the vehicle lost acceleration, eventually coming to a complete stop. This created a potentially dangerous situation, but I was fortunately able to pull over safely. After the vehicle stopped, the engine would not restart. The mechanic who inspected the vehicle confirmed that the engine has seized. This incident occurred without any prior warning signs and could have resulted in a severe accident. I believe this issue poses a significant safety risk to drivers and passengers. I request an investigation into whether this problem could be due to a manufacturing defect or systemic issue with this model.

61 Engine And Engine Cooling problem

Failure Date: 11/10/2024

I was driving back yo my home with my family and on freeway Acura Mdx engine stopped with clanking metallic sound fortunately I was able to stop safely. This VIN [xxx] should be part of recall. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

62 Engine And Engine Cooling problem

Failure Date: 10/26/2024

Driving on the highway for the car to idle, slow down and shut off, causing us to go to the shoulder in a busy intersection. No fore warning just died and won’t start. Waited 20-30 minute to restart. The car will start but will not shift to neutral or drive.

63 Engine And Engine Cooling problem

Failure Date: 10/26/2024

We were on a highway drive to a state park 45 minutes from our house on [xxx]. 40 minutes into the drive the check engine light flashed. We had just taken a long road trip from minnesota to ohio (and back again) the week before (10/15-10/20) and had no problems whatsoever. We parked and read what we could online as to what to do. Checked the gas cap tightness, the oil, etc. And let the engine cool for 2 hours. Started the car and no lights came on. So we started driving home. 35 minutes later all the lights on the dash came on. Scrolling through every system in the car-transmission, brakes, lane assist, etc. We pulled over almost immediately. Turned the car off checked under the hood but nothing seemed glaringly wrong. It wasn’t overheating or smoking or anything. We tried to drive it directly to our mechanic. Got back on the highway and the engine would not get up to speed, just groaning. Worried we would be in danger on the highway we pulled over and called for a tow. The first mechanic that reviewed (just local not Honda) could hear a knocking in the engine. Towed it to an Acura dealership on 10/28/2024. The Acura mechanic there confirmed that it is a rod/rod bearing issue—but we don’t fall under the recall. The rod came loose in the engine, banged around, damaging the engine. Cost to fix is $10,000. This information came to us on 11/4. We filed a complaint with the Acura/Honda recall department that day. We have been waiting to hear their verdict (after their investigation) for the last week. We have been told multiple times that our car doesn’t fall under the original recall. But the Acura mechanic has confirmed it is the same issue. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

64 Engine And Engine Cooling problem

Failure Date: 10/25/2024

I am [xxx] and I have owned Honda/Acura since I was 16 yrs old. My last vehicle was a Honda odyssey minivan with 423k when I donated it, running well to a family that fostered kids! I bought a new 2016 Acura Mdx and now it is 8 years old and has 180k on it. I get the oil changed and other normal service maintenance done only at Honda or Acura dealerships. I have never had a car accident and I take care of the maintenance early. All of a sudden, on Friday, [xxx], I had just started driving ( ~20 minutes in the car) and every light started flashing and the car sounded funny and it was hard to drive. I immediately got off the highway and found a repair place (red's auto repair) right off the exit. They had me shut off the car. Then they checked the oil, which was showing 70%, and I had just had it changed less than 1000 miles earlier, and it had plenty of oil. They told me I could not drive the car! they said "something is wrong with the engine". Currently, lafontaine Acura has my car. I have a loaner from them. They said it "spun a bearing" in the engine. Apparently there is a recall for this same problem for my year, make and model, but "currently" my VIN number is not included? and, it is the exact same problem bearing from the recall! this is crazy! my car has been well taken care of and I would expect it to get at least 350k miles at least before any issues. If the same problem was recalled for other cars, why not mine? it is un-drivable now. I think that Honda has changed their manufacturing because in 43 years of driving hondas they always are reliable and work well for years and years. My 5 adult kids drive hondas as well! never a problem. I think I got a vehicle with a defect that should not be, especially when the car has always been maintained so well, with the service records to show that. Please help get this included in the recall for safety! what is my next step to ensure that my car is included? thank you very much information redacted pursuant to the freedom of information act.

65 Engine And Engine Cooling problem

Failure Date: 10/24/2024

Vehicle always smells hot or as if something electric is burning in the engine compartment. Have always had scheduled maintenance and have taken it in on time for all oil changes and maintenance to be performed. Have asked for this to be checked at that time and when the smell has become over powering. Engine lights have popped up and then all lights have shut off two separate times previously to the point where I had to turn off the vehicle. I have taken it to two dealerships and another mechanic to look for the cause. They are not able to determine the cause but recommend I contact Acura as this sounds like a warranty issue.

66 Engine And Engine Cooling problem

Failure Date: 10/21/2024

The contact owns a 2016 Acura Mdx. The contact stated that while driving 40 mph, there was a knocking sound coming from the engine. The vehicle was driven to the residence. The check engine warning light was illuminated. The vehicle was then towed to a local dealer to be diagnosed. The contact was informed that the rod bearings had failed, and the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 86,000.

67 Engine And Engine Cooling problem

Failure Date: 09/21/2024

Failure of connecting rod bearings leading to complete engine failure.

68 Engine And Engine Cooling problem

Failure Date: 09/21/2024

The auto engine idle feature activated at a stoplight as normal, but when I lifted my foot from the brake to accelerate, the car shut down, shifted into neutral, and wouldn’t restart. This happenwd 3 times in the last two days , leaving me stalled in heavy traffic for several minutes before I can get the car started again. This is extremely dangerous.

69 Engine And Engine Cooling problem

Failure Date: 09/12/2024

I have the same issue but my VIN does not meet the requirement. Reading multiple forum and a lot of people having the same issue. Nhtsa recall number:23v-751 mfr campaign id:oh6 campaign description:2016-20 Mdx conn rod inspect recall recall date:11/08/2023 recall status:17 character VIN required summary: american Honda motor CO. , inc. (Honda) is recalling certain 2016-2020 model year Mdx vehicles. Due to a manufacturing defect of the engine crankshaft, the connecting rod bearing can prematurely wear and seize. Safety risk: if the connecting rod bearing seizes, the engine can be damaged and run improperly, stall, stop while driving, and/or not start, increasing the risk of a fire, crash or injury.

70 Engine And Engine Cooling problem

Failure Date: 09/06/2024

Engine failure. Mcgrath confirmed the engine had the same rod issues as described in the recall. Corporate refused to cover the repair.



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