2011 Mercury Mariner Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2011 Mercury Mariner
Never overpay. Check prices with our estimator
Verified by mechanics, reported by drivers like you
Ask a mechanic in our community
2011 Mercury Mariner ProblemsKnock/Pop Noise from the Steering Column when Turning
Looseness in the steering shaft and steering shaft coupling U-joint can cause a knocking / popping noise from the steering column when turning. The steering shaft and coupling U-joint will need to be replaced.
If the transmission oil leaks out of left side half shaft area, it may be from a worn axle shaft seal. The seal can be damaged by a poor surface finish on the axle shaft. The axle shaft and seal should be replaced to correct the problem.
The 2008-2011 Mercury Mariner with manual temperature and fan controls may have problems with the the blower motor only blowing air on certain settings. Most commonly the fan will only run on the highest setting. This is a well documented problem, and is caused by a failing blower motor resistor.
Correcting the problem is straight forward, and requires replacement of the small resistor. The resistor is normally found behind the glove box, next to the blower motor.
2011 Mercury Mariner QuestionsPassenger rear tire is wearing on the side wall with nothing touching it (1 answer)
2011 Mercury Mariner RecallsFuel Delivery Module Leaks Fuel
The fuel delivery module (FDM) may crack and leak fuel. Dealers will replace the FDM flange with one that has a redesigned fuel supply port free of charge to resolve the concern.
Due to a software issue that affects operation of the torque sensor, the electric power steering may stop functioning. This would make it difficult to steer the vehicle. Dealers will reprogram the power steering control module and instrument cluster module free of charge to resolve the concern. Dealers will also replace affected electric steering components as necessary upon inspection free of charge.