2009 Mercury Mariner Hybrid Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2009 Mercury Mariner Hybrid
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2009 Mercury Mariner Hybrid ProblemsCoolant Pump on Hybrid May Fail and Cause CEL/Engine Shutdown
Hard driving conditions, including quick starts from a stop and hard acceleration up hills, can cause the rear motor mount to crack. The broken motor mount needs to be replaced, otherwise damage to the hybrid drive system may result.
The 2008-2011 Mercury Mariner Hybrid 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.
2009 Mercury Mariner Hybrid Questionsfuel system maintenance (2 answers)
How often should the fuel filter and fuel injection nozzles be cleaned by dealer. Can I do it myself?