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2008 Mercury Mariner Hybrid Problems and Recalls
Owners filed 116 complaints with NHTSA about the 2008 Mercury Mariner Hybrid, most often about the engine (35% of complaints, typically around 67,000 miles). It is the most complained-about Mariner Hybrid model year since 2000.
Most common 2008 Mercury Mariner Hybrid problems
Engine
40 complaints · 35%Half of these problems showed up before 67,000 miles. Parts named most often: engine.
2008 Mariner Hybrid / 67000miles. Engine failure. Was able to limp off highway. After waiting several minutes car restarted and was able to drive approx. 5 miles before it shut off again. Drove to dealer with several shutdowns. Dealer states car needs electronic cooling pump and cht sensor at a cost of $1275.00. Car…
This would be the second un-warned total loss of power on a freeway. Having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. But being stuck in 10pm darkness on a narrow shoulder…
Brakes
32 complaints · 28%Half of these problems showed up before 114,000 miles. Parts named most often: antilock/traction control/electronic limited slip.
When decelerating down hill the brakes became seemed to have no power to stop the car and required extreme force to stop the car. Afterwards the electronic motor disengaged from the engine and the automobile runs on combustion engine only without the hybrid electric motor assist.
Failure of the regenerative braking system due to a defective master cylinder and/or hydraulic control unit ("hcu"). Very dangerous. There is no recall on this - why? Many have had the same problem! See http://blog.yagelski.com/2010/07/ford-hybrid-brake-failure-revisited.html
Steering
24 complaints · 21%Half of these problems showed up before 100,000 miles.
My 2008 Mercury Mariner Hybrid has a dangerous high speed stall condition. It is very serious and puts the vehicle and occupants in a situation that causes a very high risk of a crash. This said, my vehicle is not covered in the current recall? Why not?
The contact owns a 2008 Mercury Mariner Hybrid. The contact stated that the stop safety now warning message illuminated and an unknown warning light illuminated. The contact mentioned that when the defroster was activated, the warning lights no longer illuminated. The vehicle was not diagnosed or repaired. The vehicle…
Electrical
22 complaints · 19%Half of these problems showed up before 66,500 miles.
This would be the second un-warned total loss of power on a freeway. Having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. But being stuck in 10pm darkness on a narrow shoulder…
Vehicle's gas engine shut off on the freeway at 65 MPH without warning leaving only the electric motor to power it. The reduced the maximum speed to 25 MPH. Dealer said failure of the motor electronics cooling pump caused the loss of power.
Fuel system
18 complaints · 16%Half of these problems showed up before 66,500 miles.
This would be the second un-warned total loss of power on a freeway. Having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. But being stuck in 10pm darkness on a narrow shoulder…
This would be the second un-warned total loss of power on a freeway. Having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. But being stuck in 10pm darkness on a narrow shoulder…
Transmission
16 complaints · 14%Half of these problems showed up before 66,500 miles. Parts named most often: automatic transmission.
This would be the second un-warned total loss of power on a freeway. Having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. But being stuck in 10pm darkness on a narrow shoulder…
This would be the second un-warned total loss of power on a freeway. Having coasted out of traffic on the first unwarned engine / propulsion system shut-down in fast-moving freeway traffic, managed to find wide-enough section of outside shoulder to come to a stop. But being stuck in 10pm darkness on a narrow shoulder…
Speed control
11 complaints · 10%Half of these problems showed up before 91,000 miles.
The contact owns a 2008 Mercury Mariner Hybrid. The contact stated that while driving at various speeds, the vehicle loss motive power and stalled with an unknown warning light illuminated. The vehicle was taken to andy mohr ford located at 2713 e. Main st, plainfield, in 46168 however, the vehicle was not diagnosed…
On the freeway with cruise control on at 70 MPH in the fast lane the motor unexpectedly stops and the "pull over safely light" came on. This caused a very dangerous situation causing me to move over four lanes to the shoulder of the road. After the vehicle was completely stopped and put in park the motor restarted.…
Other or unspecified
5 complaints · 4%Half of these problems showed up before 71,000 miles.
Returning from florida to georgia and passed a vehicle at about 70mph and released the accelerator but vehicle kept accelerating. I pressed the brake pedal but vehicle kept accelerating. I pressed the accelerator again and vehicle finally stopped accelerating. Additionally, "stop safely now" message intermittently…
The SUV lost all power while driving 70mph on the highway...everything went off including the engine. The dashboard LED read pull over immediately.
Complaints are owner reports to NHTSA, not verified defects. One complaint can name several components, so shares add up to more than 100%.
2008 Mercury Mariner Hybrid recalls
NHTSA lists no recalls for this model year.
Recall repairs are free at any franchised dealer. Enter your VIN at nhtsa.gov/recalls to see which recalls are still open on your car.
NHTSA defect investigations
Pedestrian alert sounds
Summary
Nhtsa received a petition on or about july 18, 2022, requesting that federal motor vehicle safety standard (fmvss) 141 be applied to all electric and hybrid vehicles operating in the united states. The petition can be reviewed at NHTSA.gov under odi number 11486072. Fmvss 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 kg or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after march 1, 2021.on january 27, 2023, NHTSA opened defect petition (dp) 22-005 to evaluate the subject matt
Loss of power steering while driving
Summary
On may 27, 2014, amended june 2, 2014, ford motor company (ford) submitted a defect information report (dir) to NHTSA describing a safety defect that may result in a sudden loss of power steering assist while driving in approximately 746,067 model year (my) 2008 through 2011 ford escape vehicles equipped with electric power assisted steering (NHTSA 14v-284, ford 14s05). Ford's dir described the defect condition as a poor signal to noise ratio [snr] in the torque sensor within the electric power assisted steering (epas) system [which] does not allow the pscm to determine the driver's steering input. When the system detects this fault condition, it transitions the epas system to the fail-safe/
Questions about the 2008 Mercury Mariner Hybrid
- What are the most common problems with the 2008 Mercury Mariner Hybrid?
- By NHTSA owner complaints: engine (40 complaints, typically around 67,000 miles); brakes (32 complaints, typically around 114,000 miles); steering (24 complaints, typically around 100,000 miles).
- How many recalls does the 2008 Mercury Mariner Hybrid have?
- NHTSA lists no recalls for the 2008 Mercury Mariner Hybrid. Check your VIN at nhtsa.gov/recalls in case one is issued later.
- Is the 2008 a bad year for the Mercury Mariner Hybrid?
- It is the most complained-about Mariner Hybrid model year since 2000, with 116 complaints. Complaint counts are not adjusted for how many cars were sold, so popular years collect more of them, and the newest years have had less time to.