There are 8 owner-reported engine complaints for the 2014 Acura MDXin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
I'M seeing several reports where ACURA has a major recall on their MDX models from 2016-2020 however i have a 2014 model but I have suffered the same engine failure due to a connecting rod issue that has caused what they call a spun bearing I have tried to contact American Honda to file a complaint but they just keep denying me since my vehicle is not part of the recall but by sheer coincidence my engine has failed I had no warning signals that would of indicated this problem and I have had the car fully maintained by ACURA Dealerships since I bought the car in 2017 I see where several hundred other complaints have been filed due to ACURA's faulty issues - ACURA needs to expand their recall list to go back as far as possible since they seem to be having the same issues with previous models not included in the recall
I change my own engine oil every 3,000 miles. During the past year with three oil changes completed, I have observed aluminum pieces in the bottom of the oil change black pan. Because my wife's 2017 Acura TLX was the subject of the crankshaft and connecting rod campaign (the dealer had to replace the crankshaft and all of the connecting rod and main bearings) I am familiar with the issue of non-concentric crankshaft connecting rod journals, and so have been surprised that my 2014 MDX with the same 3.5 L V6 has not yet been included. I am pretty sure it does suffer from the same defect as evidenced by the aluminum in the engine oil. If it fails at hihway speeds, that would possibly cause a safety incident.
WHILE DRIVING IN A MAIN ROAD, SMOKE STARTED TO FILL THE INSIDE OF THE CAR. PULLED OVER IMMEDIATELY, OPENED THE HOOD, THERE WAS FIRE THAT WAS RAPIDLY EXPANDING. CALL 911, BY THE TIME THEY ARRIVED (ABOUT 4 TO 5 MINS), THE FIRE CONSUMED THE ENTIRE CAR.
THE CAR SPUTTERS AND LURCHES BETWEEN 30-40 MPH OR SO. IT CAN'T MAINTAIN SPEED. YOU HAVE TO SPEED UP OR SLOW DOWN SIGNIFICANTLY FOR IT TO STOP. IT'S RIDICULOUS AND ANNOYING THAT A 45-50,000 DOLLAR CAR WOULD DO THIS. THE CAR HAS BEEN DOING IT SINCE THE DAY WE BOUGHT IT. ALSO NEEDED TO MENTION THE AUDIBLE TICKING THE ENGINE MAKES WHEN IDLING. WHY HASN'T SOMETHING BEEN DONE ABOUT THIS CONSIDERING MANY PEOPLE HAVE COMPLAINED OF THIS ISSUE????
THE VEHICLE THAT I USE FOR DAILY COMMUTE, ACURA MDX, HAD A BREAK DOWN ON 5/16/16. IT WAS LATER TOWED TO THE ACURA DEALERSHIP ( SUBURBAN ACURA ). THE CAUSE OF THE BREAKDOWN WAS DIAGNOSED AS OVERHEATING OF THE ENGINE DUE TO TAMPERING. ALSO, THE VEHICLE WAS AT THE SAME DEALERSHIP ON 4/23/16 WHEN NO PROBLEM WAS NOTICED. MY VEHICLE IS ALWAYS PARKED IN A SECURE LOCATION AT WORK ( MONITORED BY VETERANS POLICE AT THE VA HOSPITAL ) AND AT HOME IN A SECURE GARAGE. I ASKED THE VA POLICE IF THERE IS A POSSIBILITY OF TAMPERING AT WORK AND I HAVE BEEN TOLD THAT THEY WOULD HAVE NOTICED IT SINCE THE AREA IS UNDER VIDEO SURVEILLANCE. I STRONGLY SUSPECT THAT THE SUV WAS COMPROMISED ( TAMPERED / DAMAGED ) DURING ROUTINE MAINTENANCE WHEN IT WAS AT THE DEALERSHIP PRIOR TO THE BREAKDOWN AND THE DEALER IS TRYING TO DEFLECT THE ISSUE BY CITING TAMPERING AS THE CAUSE. WHEN ASKED IF THIS WAS POSSIBLE, ACURA CUSTOMER SERVICE ( MRS APRIL AT 800-382-2238 EXT 115239 ) & THE DEALERSHIP ( SUBURBAN ACURA, FARMINGTON HILLS, MI )DENY THIS BY VERBALLY STATING THAT " ENGINE HEATING DUE TO THIS KIND OF TAMPERING WOULD RESULT WITHIN LESS THAN 5 MILES OF DRIVING AND I WOULD HAVE NOTICED IT ON THE DAY THE SUV LEFT THE DEALERSHIP WHEN IT WENT FOR ROUTINE MAINTENANCE" I FAIL TO UNDERSTAND HOW I COULD DRIVE MORE THAN 20 MILES TO WORK OR BACK HOME IF TAMPERING DID HAPPEN AT EITHER WORK OR AT HOME. TAMPERING OF THIS KIND APPARENTLY IS ONLY POSSIBLE WITH SPECIAL INSTRUMENTATION AND I FAIL TO UNDERSTAND WHY ANYONE WOULD DO THIS. THE OTHER ISSUE WE SUSPECT IS IF THERE IS A DEFECTIVE PART ( FROM ACURA ) AND THEY ARE UNWILLING TO ADMIT IT TO AVOID LIABILITY.
VEHICLE HAS 25K MILES. WHILE DRIVING A LOW SPEEDS THE CAR STALLS OUT AND THEN ACCELERATES FORWARD CAUSING US TO HIT THE BREAKS. I HAVE HAD VERY CLOSE CALLS WITH ACCIDENTS DUE TO THE STALLING AND UNCONTROLLED ACCELERATION. THE DEALER STATES THERE IS NOTHING WRONG.
HEARING GRINDING/BUZZING SOUND TOWARD LEFT FRONT-SIDE / ENGINE AREA WHEN DRIVING BETWEEN 20+ MILES PER HOUR. THIS NOISE IS INTERMITTENT BUT OCCURS DURING EVERY COMMUTE. NOISE OCCURS QUICKLY THEN GOES AWAY. WHEN DRIVING 2-HOURS IN TRAFFIC, HEARD OVER 30 GRINDING/BUZZING NOISES AT VARIOUS SPEEDS. NOISE CAN BE SUBTLE TO AUDIBLY CLEAR FROM THE BACK-SEAT. THIS HAS BEEN OCCURRING FOR PAST MONTH AND HALF, AND GRINDING / BUZZING NOISE IS AUDIBLE AT EVER COMMUTE. AT FIRST WARRANTY REPAIR, DEALERSHIP SERVICE REP SAID THAT THIS IS COMING A COMMON ISSUE FOR 2014 ACURA MDX AND IT'S A BULKHEAD COVER STRIKERS AND LATCHES ISSUE. REPLACED THE PART WITHOUT FURTHER DIAGNOSIS. TOOK BACK TO DEALERSHIP SECOND TIME AND TEST DROVE WITH MECHANIC. MECHANIC CONFIRMED THE GRINDING / BUZZING NOISE. REPAIR DID NOT FIX THE ISSUE AND GRINDING / BUZZING NOISE IS STILL OCCURRING. FOUND ON YOUTUBE AND ONLINE 2014 ACURA MDX FORUMS THAT OTHER 2014 MDX OWNERS ARE HAVING SAME ISSUE. *TR
TL* THE CONTACT OWNS A 2014 ACURA MDX. THE CONTACT STATED WHILE DRIVING 50 MPH, THE VEHICLE SUDDENLY STALLED. THE VEHICLE WAS UNABLE TO RESTART AFTER THE FAILURE. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 3,800.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 26, 2026