really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
97,845 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2005 Mercury Mountaineer electrical problems

electrical problem

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2005 Mercury Mountaineer Owner Comments

problem #4

Jun 272016


  • 98,581 miles


The contact owns a 2005 Mercury Mountaineer. When the vehicle was started, the contact heard a knocking noise from the middle of the dashboard and cold air was blowing from the vents. The dealer diagnosed that the temperature blender actuator failed and needed replacement. This was the third time the vehicle was repaired for the same failure. The manufacturer was notified of the failure. The approximate failure mileage was 98,581.

- Roxbury, MA, USA

problem #3

Mar 022016


  • 124,000 miles
My husband was driving our 2005 Mercury Mountaineer and he was going less than 20 miles per hour on a main street and got in a accident the woman stopped short and he rear ended her. The car totalled up buckled up air bags never inflated they came out completely deflated. Issue with this car also is the electric driver window dies out mechanic could not figure out bought new motors still wouldnt open electric switches they thought it was fully electronic they where going to re wire very expensibe but car was totalled. Car horrible on gas also. Have pictures of delated air bags both driver and passanger

- Westbury, NY, USA

problem #2

Dec 112010

Mountaineer 8-cyl

  • 158,000 miles
My 2005 Mercury Mountaineer loses power for no reason. This is the fourth time this has happened. It was been to the dealer multiple times and they cannot find a problem. There is nothing to foresee when it happens, the only consistency has been that luckily I have been on local roads doing no more than 35 miles per hour or so. First battery light and service engine comes on as the engine stops, then low oil. The car does not seize up, I can steer to the side of the road. If I put it back in park. Turn the ignition off, and then restart it is fine. There is considerable length of time between occurrences (months if not close to a year this time.)

- Wyckoff, NJ, USA

problem #1

Jul 042007


  • 10,800 miles
Cruise control disengages after driving for an extended period of time, usual a trip over 90 minutes in length. It works fine until you have to apply brake for a construction zone, or of ramp, etc. When you push resume nothing happens. Turning it off and trying to turn it back on still does not resolve the problem. After turning the car on and off a few times it will start working again, but that isn't really useful while on a long trip. It first happened two and a half years ago and continues to happen. The dealership says they can't duplicate the problem but has only test driven for 20 minutes.

- Champaign, IL, USA

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