Mercury Mariner problems
0 safety recalls. 315 owner complaints. We mapped every trouble spot before you sign the papers.
Solid reliability overall. Common issues are concentrated in a few systems.
Top trouble spots 8 categories with 3+ complaints
What owners are saying recent NHTSA-filed complaints · verbatim
The contact owns a 2009 Mercury Marnier. The contact stated while driving at an undisclosed speed, the steering wheel started to shake. The electric power steering (EPS) warning light was illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that…
TL* THE CONTACT OWNS A 2009 MERCURY MARINER. WHILE DRIVING 35 MPH, THE STEERING WHEEL SEIZED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THE STEERING COLUMN FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE…
WHEN PULLING UP TO A STOP SIGN THE CAR JUST STOPPED NEXT TIME COMING OFF INTERSTATE TO STOP THE VEHICLE KINDA OF LUNGED THE NEXT TINE IT JUST TRIED TO STALL HAD TO PUT IN NEUTRAL AND KEEP FOOT ON GAS TO KEEP IT RUNNING. *TR
WHILE DRIVING THE MARINER AT 45 MPH ON A BUSY STREET, THE ENGINE WENT INTO LIMP MODE, LOST ALL ACCELERATION AND SLOWED TO 5 MPH. I WAS NEARLY REAR-ENDED BY THE TRUCK BEHIND ME AND WAS FORCED TO PULL UP ONTO A SIDEWALK, DAMAGING MY TIRE. PULLED THE CODES ON THE CAR AND GOT A…
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Drag to your current mileage. Numbers are derived from this vehicle's complaint history.
Common questions
Is the 2009 Mercury Mariner reliable?
Mostly yes. With a reliability score of 7.2 out of 10 based on 315 owner complaints filed with NHTSA, the 2009 Mercury Mariner is generally a sound vehicle. The areas to watch are listed in the top problem section above — most are budget items, not deal-breakers.
What's the most common problem on the 2009 Mercury Mariner?
Based on NHTSA records, the most-reported issue is steering, with 167 complaints filed. Average repair cost runs about $700 at an independent shop.
What's the most expensive thing that goes wrong?
The steering is one of the costlier repair items. Average repair cost runs about $700 at an independent shop. Catching early warning signs can sometimes extend life by 20–30,000 miles.
How do I check if my Mercury Mariner has open recalls?
Paste your VIN into the decoder at the top of this page. We pull live from NHTSA, so you'll see exactly which campaigns apply to your vehicle and whether the dealer has logged the fix. Recall repairs are always free regardless of mileage or warranty status.
Is an extended warranty worth it on a 2009 Mercury Mariner?
Math is straightforward: a quality service contract runs $1,800–3,500 over 3 years. With 315 complaints on file and the costliest repair averaging $700, one major failure more than pays for it. The catch is reading the contract — many providers exclude wear items and require pre-authorization, so cheaper plans aren't always better value.