FORD/MERCURY: TO PREVENT HARNESS DAMAGE, ON SOME VEHICLES, RESULTING IN CONTACT WITH TIRE OR SUSPENSION COMPONENTS, PROPER ROUTING OF WIRING HARNESS FOR WHEEL SPEED SENSOR IS KEY. 2006-2010 EXPLORER, MOUNTAINEER, EXPLORER SPORT TRAC.
full bulletin at NHTSA ↗2006 Mercury Mountaineer electrical problems
severe 8 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Failure mileage
Complaints
8
Recalls
0
Avg fix
$850
1crash
When does it fail?
Of the 8 electrical complaints filed for the 2006 Mercury Mountaineer, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
No new NHTSA electrical complaint has been filed on this vehicle in over 10 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
DIAGNOSTIC TROUBLE CODES P0340/P0344/P0345/P0349 - 4.6L 3V AND 5.4L 3V.
full bulletin at NHTSA ↗NO START WITH INSTRUMENT CLUSTER INOPERATIVE.
full bulletin at NHTSA ↗IGNITION DIAGNOSTICS. TO INCLUDE LINCOLN ZEPHYR 2006.
full bulletin at NHTSA ↗MIL ON WITH P0463 OR ERRATIC FUEL GAUGE OPERATION.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 2 most recent
Bought used in wa state and live in nj now. After purchasse it rained one night and next morning entire center console, overhead lights were all wet inside. Upon further investigation determined leak was sunroof. Notified dealer and they had a glass specialist remove the entire assembly and thoroughly clean. Replaced seal with new one and claimed no more leakage. A few days later it rained…
Shortly after purchasing my mountaineer the electric running board on the driver side began to make a grinding sound. Bought from a dealer in wa state and moved to wi state where the driver side stopped and the passenger side stopped extending/retracting. Moved to nj and we had purchased the vehicle extended warranty. Began to sound like a knocking sound with little power and had towed to dealer.…
Had electrical trouble with your 2006 Mercury Mountaineer?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2006 Mercury Mountaineer?
It's a meaningful issue. 8 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Across the 8 complaints that reported odometer mileage, most electrical failures cluster between 60,000 and 120,000 miles, with the median around 88,783. A quarter of owners report trouble before 60,000; a quarter make it past 120,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2006/Mercury/Mountaineer.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.