2008 Mercury Mountaineer problems, complaints & recalls
Most-reported problem areas: Seats (47) · Electrical System (11) · Seat Belts (4)
🧭 Reliability snapshot
Compared against other Mercury Mountaineer model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
81 NHTSA complaints that reported an odometer reading.
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (21)
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.
Equipment 2024-04-24 · SSM 52476 · Service Bulletin/Repair Instructions
all accessory stick-on keyless entry keypads come with a wallet card containing the master code. if the accessory keypad was factory installed, this card will be placed in the glove box and should be handed to the vehicle s owner during initial delivery. unlike the integrated (wired) factory keypad,
Power Train:automatic Transmission 2023-09-07 · SSM 51909 · Service Bulletin/Repair Instructions
when performing any transmission fluid changes or topoffs involving mercon sp, mercon lv has replaced all versions of mercon sp and can be used going forward. mixing mercon lv and mercon sp in the same transmission is acceptable. after 30-jun-2023, mercon sp atf will no longer be manufactured and wi
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
Steering 2018-10-02 · DOR-S3J9G-11 · Service Bulletin/Repair Instructions
this sku is a front upper ball joint. the customer communication requested return of unsold inventory to inspect for ball studs with excessive rotational friction in the ball joint assembly. excessive friction in the ball joint assembly may cause a perceptible increase in steering effort.
Equipment 2018-06-01 · SSM 47331 · Service Bulletin/Repair Instructions
various vehicles equipped with a 4.6l, 5.4l, 6.8l modular 3 valve engine built on or before 8-jan-2016 may exhibit symptoms that may include upper end engine noise, rough running, misfire and/or engine damage. if diagnosis leads to only camshaft/camshaft roller follower(s) requiring replacement, rep
Showing the 6 most recent of 21 bulletins. Search all of them free at nhtsa.gov.
What owners report
2025-09-03 · Fuel System, Gasoline · 200,000 mi“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 gear shifter intermittently fa…”
2021-10-21 · Steering:steering Control Module · 141,782 mi“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 independent mechanic and was info…”
2020-10-18 · Unknown Or Other · 15,000 mi“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 dealership. never could solve pr…”
2020-08-24 · Seat Belts“on a 2008 mercury mountaineer the driver side seat belt will not stay hooked in it comes lose.…”
2020-08-10 · Seat Belts“seat belt on the drivers side fails to say hooked into the seat belt clip-in…”
2020-08-10 · Seat Belts · 85,625 mi“drivers side seat belt with not stay locked in.…”
2020-05-27 · Electrical System: Instrument Cluster/Panel · 120,000 mi“tl* the contact owns a 2008 mercury mountaineer. the contact stated that the instrument panel lighting system was inoperable. the vehicle was taken to an independent mechanic who diagnosed the vehicle however, was unable to determine the cause of the failure. the instrument panel lights were replaced however, the failure recurred. the vehicle then …”
2020-05-09 · Engine · 140,074 mi“car when idle shuts off in middle of traffic locking break an steering wheel can cause accident happened to me in middle of traffic thank god i was close to emergency exit car shutoff not allowing to brake had to press emergency brake. *tr…”
2020-03-07 · Service Brakes · 29,000 mi“at 28000 miles the transmission started shifting erratic, the dealer reprogrammed the ecm and covered up the problem until the warrant ended and the battery failed at which time the car reverted back to default and continued to buck and jerk until the car reached highway speed. this continued until the transmission finally failed during operation o…”
2019-11-25 · Seats · 198,000 mi“driver seat electrical adjustment will move itself backwards while car is moving. there is no pattern to this problem, it is random. …”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.