What is the fuel economy of a 2009 Mercury Mariner 4WD?

EPA figures for the 2009 Mercury Mariner 4WD reach 21 MPG combined depending on configuration; the table on this page lists every tested engine and transmission combination.

Are there recalls on the 2009 Mercury Mariner 4WD?

NHTSA lists 2 safety recall campaigns for the 2009 Mercury Mariner 4WD. Check your specific vehicle by VIN on the official NHTSA site - recalls are fixed free of charge by dealers.

What are common problems with the 2009 Mercury Mariner 4WD?

Owners have filed 422 complaints with NHTSA for the 2009 Mercury Mariner 4WD, most often about: Steering, Engine, Power Train. Complaint counts reflect what owners report, not confirmed defects.

Mercury · 2009

2009 Mercury Mariner 4WD

Official EPA fuel economy and NHTSA recall record, best combined figure 21 MPG.

Fuel economy (EPA)

Engine	Transmission	Fuel	City	Highway	Combined	CO2 g/mi
2.5L 4-cyl	Automatic 6-spd	Regular	19	25	21	423
3.0L 6-cyl	Automatic 6-spd	Regular	17	24	20	444

Safety recalls (NHTSA)

2 campaigns on record for this model year. Recall repairs are free at dealers; check your exact vehicle by VIN on nhtsa.gov/recalls.

Campaign 14V284000

Ford Motor Company (Ford) is recalling certain model year 2008-2011 Ford Escape and Mercury Mariner vehicles manufactured August 18, 2006, through September 11, 2010. The affected vehicles have a steering torque sensor that may not be able to properly detect driver steering input. As a result, the system could remove the Electric Power Steering (EPS) assist.

Campaign 15E045000

The Timken Company (Timken) is recalling certain aftermarket front wheel bearings, part number 510072, sold from January 22, 2015, to May 21, 2015, to be used as service parts on 2001-2012 Ford Escape, 2001-2011 Mazda Tribute, and 2005-2011 Mercury Mariner vehicles. The affected wheel bearings have incorrect dimensions of a 42mm bore, 76mm outer dimension, and 39mm width, instead of a 42mm bore,

Owner complaints (NHTSA)

422 complaints filed by owners for this model year (11 involving a crash, 0 a fire). Complaints are owner reports, not confirmed defects - browse them in full on nhtsa.gov.

Steering 167 Engine 53 Power Train 44

Decode this car's VIN All Mercury models

Sources: EPA fueleconomy.gov, the NHTSA recalls, complaints and 5-Star Safety Ratings databases (all US public data), refreshed monthly. Recall texts are quoted from the official record. Details on About & Data Sources.