2011 Mercury Mariner Engine cooling Problems
- Complaints
- 3about this part
- Share
- 3%of 87 total for the year
- Median mileage
- 43,261miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the engine cooling of the 2011 Mercury Mariner, 3% of the 87 complaints for this model year. Where a mileage was given, the median is 43,261 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving through my neighborhood on the way home from going out to dinner. I went around a curve and then when I started going up a slight hill, the engine surged. I didn't think to much about it until I lost almost all power. I could not get up to a speed higher than 5 miles per hour. I was able to get within one block of my residence. I waited for about an hour as I looked up the diagnostic code that my odb2 scanner gave me. I found out that it is code p2111, throttle actuator control system - stuck open. I went back to my car, after about an hour, and it started just fine. …”
NHTSA complaint #10586703, filed 2014-05, 32,200 miles“Driving highway speed and vehicle stalled, also stalled after taking off from stopped position. Pulled off of the side of the road and turned engine off and was able to restart the engine.”
NHTSA complaint #10522010, filed 2013-06, 54,322 miles“I just bought a 2011 Mercury Mariner in april 2013..I only had it 6 weeks when this happened. I was driving in 5 o'clock traffic and my car motor started making funny noises, felt like it was trying to stall and would not accelerate, the wrench light came on and then my check engine light. My car would barely drive, I was stuck in traffic, thankfully people saw my hazard lights and allowed me to cut through the lines of traffic and I was finally able to pull over into a parking lot. …”
NHTSA complaint #10519325, filed 2013-06Related service bulletins
- 10177599Jun 3, 2020These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no…
- 10177598Jun 3, 2020These SKUs are Exhaust Manifolds with Catalytic Converters. The customer communication requested return of unsold inventory due to a loss of CARB certification. These SKUs can no…
- 10109070Sep 21, 2016The 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…
- 10043648Jan 1, 2012Ford: the variable camshaft timing vct) solenoid movement may be temporarily restricted due to debris in engine oil that is causing diagnostic trouble codes (dtcs).
- 10040948Mar 15, 2011Ford: there may be a leaking/stuck canister purge valve which can cause multiple driving systems. The malfunction light may be on with or without stored trouble codes.
- 10039064Feb 11, 2011Ford: there may be a hard start or rough idle accompanied with two trouble codes. The problem may have to do with camshaft timing. 2010-2011 fusion/escape/milan/mariner.
- 10037561Feb 1, 2011Ford: vehicles may run rough, hard start after refueling, clicking noise under hood, and have trouble codes stored.
- 10041258Jan 19, 2011Ford service campaign: see document search button for owner letter. 2011 mariner/escape. Vehicles were shipped without proper emissions standards.
Engine cooling: other model years
Other parts of the 2011 Mercury Mariner
28 complaintsTransmission and drivetrain
24 complaintsSteering
20 complaintsVehicle speed control
15 complaintsEngine
11 complaintsElectrical system
6 complaintsVisibility (wipers, defrost, mirrors)
6 complaintsOther or unknown
3 complaintsAir bags
2 complaintsEquipment
1 complaintsSuspension
1 complaints
← All problems reported for the 2011 Mercury Mariner
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology