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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
69,561 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.

2006 Mercury Mountaineer cooling system problems

cooling system problem

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2006 Mercury Mountaineer Owner Comments

problem #4

Sep 112013

Mountaineer 6-cyl

  • Automatic transmission
  • 100,000 miles


The contact owns a 2006 Mercury Mountaineer. The contact stated that while approaching the vehicle, he noticed that there was antifreeze leaking onto the ground. The vehicle was not taken to the dealer for inspection. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 100,000. The VIN was unavailable. Updated 02/11/2014 the consumer stated the radiator was leaking in the seams. The radiator was eventually replaced at a cost of $400. Updated 02-2-/14

- Ledbetter, KY, USA

problem #3

Aug 222012

Mountaineer 6-cyl

  • 95,000 miles
The contact owns a 2006 Mercury Mountaineer. The contact stated that the radiator was cracked and had to be replaced twice. The dealer replaced the radiator six years ago and also needed replacing recently. The manufacturer was not notified. The failure mileage was 95,000. Updated 9/12/12

- Stevensville, MD, USA

problem #2

Jul 012010


  • 50,000 miles
The contact owns a 2006 Mercury Mountaineer. While driving approximately 40 mph, the contact noticed the temperature gauge displayed a "high temperature" reading. The vehicle was pulled over to the side of the road and the engine was turned off. The engine overheated with excessive leakage of coolant. The contact dispensed coolant into the radiator reservoir. The vehicle was able to continue for approximately ten miles before the identical failures recurred in which the radiator required additional coolant. The failures occurred whenever the vehicle was in operation. The authorized dealer was notified of the malfunctions and they informed that there was a technical service bulletin regarding the engine and engine cooling: Cooling system: Radiator assembly. The bulletin number was 0638. The vehicle was not being driven at the time of the complaint due to the potential safety hazard. The failure mileage was 50,000.

- Goose Creek, SC, USA

problem #1

May 242010


  • 33,244 miles
The contact owns a 2006 Mercury Mountaineer. While the contact was driving approximately 2 mph in a parking lot, there was a strong odor of anti-freeze coming from the vehicle. The failure occurred whenever the vehicle was in operation at any given speed being traveled. The vehicle was taken to an independent mechanic for diagnosis. The failure was contributed to a crack in the radiator which caused excessive anti-freeze leakage. The mechanic advised the anti-freeze leakage was a common problem. The vehicle had not been repaired at the time of the compliant. The failure mileage was 33,244.

- Dunmore, PA, USA

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