2008 Mercury Mountaineer problems and complaints

Owners have filed 96 complaints with NHTSA about the 2008 Mercury Mountaineer. The most-reported areas: Seats (54), Electrical System (39), Power Train (9).

Key takeaways

  • 96 owner complaints on file with NHTSA.
  • 3 involve a crash, 0 a fire, 0 reported injuries.
  • Complaints are unverified owner reports; recalls are confirmed defects.
Complaints by component
ComponentComplaintsShare
Seats5456%
Electrical System3941%
Power Train99%
Engine66%
Exterior Lighting66%
Unknown Or Other55%
Seat Belts44%
Service Brakes44%
Interior Lighting44%
Engine And Engine Cooling33%
Steering33%
Structure33%

One complaint can name several components, so shares add up to more than 100%.

NHTSA 5-Star crash ratings
VersionOverallFrontSideRollover
2008 Mercury Mountaineer 4-DR. w/SABNot ratedNot ratedNot rated3/5

Latest complaints, as filed

Owner-written and unverified by NHTSA.

Engine And Engine Cooling,fuel System, Gasoline - filed 2025-09-03

The contact owns a 2008 Mercury Mountaineer. The contact stated that the check engine warning light was illuminated. The contact stated the vehicle stalled while driving at an undisclosed speed. The contact stated that several attempts were needed to restart the vehicle to continue driving. The contact stated that the ...

Steering - filed 2021-10-21

The contact owns a 2008 Mercury Mountaineer. The contact stated that after parking the vehicle, he was unable to remove the key from the ignition. The contact stated no warning light was illuminated. The contact stated he was able to remove the key after disconnecting the battery. The contact took the vehicle to an ind...

Power Train,unknown Or Other,engine - filed 2020-10-18

SINCE I PURCHASED IN 2009, ENGINE KILLS ANYTIME, MOSTLY WHEN GAS PEDAL NOT PRESSED. PULLING OUT OF PARKING LOTS, SITTING AT RED LIGHTS, OR LETTING OFF GAS ON INTERSTATE, ENGINE JUST KILLS. SOMETIMES FEELS LIKE A JOLT. I HAVE TO PUT THE SHIFT IN NEUTRAL AND RESTART THE ENGINE. RECORDS OF ALL VISITS FOR THE PROBLEM AT DE...

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More for the 2008 Mercury Mountaineer

Complaints are reports filed by owners with the National Highway Traffic Safety Administration. NHTSA publishes them without verifying them, and counts rise with how many cars were sold, so compare years of the same model rather than different models. Crash ratings are NHTSA's own 5-Star Safety Ratings results.