🚗 AutoDefect IQ

2005 Mercury Mountaineer problems, complaints & recalls

Most-reported problem areas: Structure:body (16) · Vehicle Speed Control (9) · Power Train:automatic Transmission (8)

🧭 Reliability snapshot

100 /100
✓ Typical or better for this model

Compared against other Mercury Mountaineer model years — complaint volume vs the model's median year, recalls and severity. How we score →

🛣️ Complaints by mileage

<25k miles: 12 complaints <25k 25–50k miles: 21 complaints 21 25–50k 50–75k miles: 12 complaints 50–75k 75–100k miles: 7 complaints 75–100k 100–125k miles: 8 complaints 100–125k 125–150k miles: 7 complaints 125–150k 150k+ miles: 2 complaints 150k+

69 NHTSA complaints that reported an odometer reading.

82
Complaints
0
Recalls
49
Service bulletins
6
Crashes reported
0
Fires reported
0
Deaths

Safety recalls (0)

No recalls on record for this model year (campaigns announced since 2010).

Service bulletins (49)

Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.

Structure 2019-02-07 · TSB 19-2026 · Service Bulletin/Repair Instructions

some 2000 and newer ford, lincoln and mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. panel replacement is recommended. follow the service procedure steps to correct the condition

Structure 2019-02-07 · TSB 19-2026 · Service Bulletin/Repair Instructions

some 2000 and newer ford, lincoln and mercury vehicles equipped with aluminum body panels may exhibit corrosion concerns appearing as bubbled and/or peeling paint with or without accompanying white dust. panel replacement is recommended. follow the service procedure steps to correct the condition

Engine And Engine Cooling:exhaust System:manifold/Header/Muffler/Tail Pipe 2016-09-21 · SSM 46085 · Service Bulletin/Repair Instructions

the powertrain control/emissions diagnosis (pc/ed) manual has been revised for diagnosing electronic throttle bodies (etbs). the etc_act and etc_dsd pids should not used to diagnose possible etb concerns. the ids has a limited refresh rate when reading these pids and cannot display quickly enough to

Engine 2012-07-10 · TSB-12-7-4 · Service Bulletin/Repair Instructions

ford/lincoln/mercury: if battery was disconnected or dead, vehicles/trucks may experience hard starts and engine idle rpm fluctuation and exhibit diagnostic trouble codes (dtcs) p0505, p0506, p2111 and p2112. *pe

Power Train:axle Assembly:axle Shaft:seal 2009-05-01 · TSB-08-19-3 · Service Bulletin/Repair Instructions

ford: some vehicles may exhibit oil separation from the internal lube found in the unitized cartridge seal. oil separation appears to be and is often misdiagnosed, as an axle lube leak. *pe

Engine And Engine Cooling:engine 2007-10-01 · 07212 · Service Bulletin/Repair Instructions

some 1997-2008 vehicles equipped with a 4.6l 2v, 5.4l 2v, or 6.8l 2v engine--spark plug thread repair procedure--not covered under new vehicle limited warranty. *nj this includes f-53 motorhome chassis. updated 2/23/10. *pe

Showing the 6 most recent of 49 bulletins. Search all of them free at nhtsa.gov.

What owners report

2023-08-17 · Unknown Or Other

“back rear windshield keeps exploding on its own i’m not the only person to complain about this …”

2023-08-03 · Wheels

“the truck bearing keep going out the spark plugs overloaded and i can’t accelerate at times when i’m driving it slows down then starts back up…”

2023-02-02 · Power Train

“the transmission won't shift into 3rd and 4th gear, hitting hard into gears at starting, slipping begins after 35 mph..replaced torque converter. …”

2022-08-10 · Vehicle Speed Control

“started losing power ,did not want to go pas 30 miles per hr ,then it ramed up and came to a stop with no acceleration ,i shut it off then start it again and was able to get home at a low rate of speed while continuing to have these problems, another day while far away from home the engine rammed up again minimizing my speed as the transmission was…”

2020-09-18 · Unknown Or Other · 1 mi

“the plastic that hold the visor arm on place crumbles. both sides were affected. the outer shield plates seem ok it's only the piece that i can only guess, 'stabalizes' the visor when you move it from front to side of the car. it looks like they're about $30-$80 each to replace. this is a 3rd hand vehicle however the mileage is fairly low for this…”

2019-03-08 · Tires

“tl* the contact owns a 2005 mercury mountaineer equipped with four cooper discoverer h/t tires, size: 245/65r17. the contact stated that all four tires rumbled and rode roughly instead of providing a smooth, stable ride while driving at any speed. the vehicle was taken to a tire facility more than five times, but the cause of the failure could not …”

2018-12-31 · Structure:body:hatchback/Liftgate · 100,000 mi

“tl* the contact owns a 2005 mercury mountaineer. the contact stated that the rear hatchback panel was cracked in several locations. there were no warning indicators illuminated. the contact called the local dealer (five star ford, 6618 ne loop 820 at rufe snow, north richland hills, tx 76180-7844, 817-500-0097) and was informed that they could not …”

2018-11-08 · Vehicle Speed Control · 136,200 mi

“i purchased a used 2005 mercury mountaineer last month, with 135,400 miles, while using cruise control and traveling approximately 35 mph, the road went from level to a very slight downgrade. the car then just shut off after audible warning bell was heard. noticed dashboard lights were all lit and battery gage was normal. i lost power steering, bra…”

2018-08-16 · Structure:body

“the mountaineer is a 2005. i love the vehicle but, the paint is almost gone on the hood and is starting to bubble in other area. this is my daily car, has been garage kept until may 2018. i cannot think of anything which would have caused this.…”

2018-06-06 · Structure:body · 116,354 mi

“tl* the contact owns a 2005 mercury mountaineer. upon inspection, the contact noticed that the rear panel was cracked. the contact was concerned that the integrity of the rear window was compromised due to the cracks. the vehicle was taken to dick smith ford (9505 e state rte 350, raytown, mo) where the cracks were confirmed. the dealer diagnosed t…”

Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.

Other Mercury Mountaineer years