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EnginePart report

2006 Mercury Mariner Engine Problems

Complaints
8about this part
Share
13%of 63 total for the year
Median mileage
75,770miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the engine of the 2006 Mercury Mariner, 13% of the 63 complaints for this model year. Where a mileage was given, the median is 75,770 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.

“The gear shift is not properly shifting. It goes from park to reverse on its own. Sometime it wont reverse and makes a loud noise. It click back and forth between gears. Ive replace the switch to see if that would work but it doesnt. Please let me know if I can do anything to fix this problem but it is the same recall 15v606000 for other vehicals of the same type”

NHTSA complaint #11296840, filed 2020-01, 190,000 miles

“As I am driving down the road, on a city street. The vehicle will just shut off, for no apparent reason. It does this several times. Every time the car is been driven it will shut off several times and me and my family have been in traffic when this has occurred. It continues to do this at any speed and every time the car is driven. Can't drive the car not even a mile before it totally shuts off.”

NHTSA complaint #11404452, filed 2021-03, 85 miles

“The truck shuts off when I come to a complete stop. It usually happens when I'm attempting to stop at a yellow light to avoid running the red light. If the truck come from a high rate of speed (45 MPH) to (0 MPH) it just turn off. I'm afraid someone is going to run into the back of me when the light turn green because the driver expects me to move when the light turn green. I think this is very dangerous for a vehicle to just stop. It has happened about 20 times since 03-29-2014. …”

NHTSA complaint #10585945, filed 2014-05, 74,000 miles

“My Mercury Mariner's idler pulley has already broken three times in the past five months. There must be a recall on this vehicle. The car is very good and too strong for that thin bolt in this part. Luckily, the fourth time it happened, the ford dealer didn't charge me for the new part, which also broke off two weeks later. It has also broken two belts already. Trying to solve the issue, I went to metric bolts and nuts, in wakefield, ma, and bought a higher grade hardened steel bolt/screw, and it also broke off a week later. …”

NHTSA complaint #10860639, filed 2016-04, 60,000 miles

“My vehicle: 2006 Mercury Mariner hybrid SUV. Purchased new in 2006. In hot weather...vehicle engine quits while in motion on freeway at approximately 70 MPH (3 times), and city streets (3 times). Extremely dangerous when engine quits while driving on freeway in traffic. All you can do (while praying!) is coast to a stop and do your best to pull off on to shoulder of road without crashing into other vehicles. We have tried 3 times to get ford motor to repair this problem...all to no avail. The last time we had to pay approximately $1,500. However, ford motor did reimburse us! …”

NHTSA complaint #11023371, filed 2017-09, 30,000 miles

Related service bulletins

Engine: other model years

YearComplaintsShare of year
20111113%
20106123%
20095317%
2008143%
2007721%
2006813%
2005812%

Other parts of the 2006 Mercury Mariner

Vehicle speed control
13 complaints
Transmission and drivetrain
11 complaints
Steering
9 complaints
Brakes
8 complaints
Suspension
8 complaints
Fuel system
6 complaints
Other or unknown
5 complaints
Body and structure
5 complaints
Electrical system
4 complaints
Air bags
3 complaints
Tires
3 complaints
Engine cooling
2 complaints

← All problems reported for the 2006 Mercury Mariner

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