2009 Mercury Mariner Service and Repair Manual

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Factory-Grade Data

The 2009 Mercury Mariner Service and Repair Manual is a practical, workshop-ready reference for maintenance, diagnostics, and repairs. Use it to troubleshoot symptoms, follow step-by-step procedures, verify specifications, and confirm wiring and connector locations before replacing parts.

Ideal for technicians and DIY owners, it supports everything from routine service to deeper mechanical and electrical work—including drivability, no-start, warning lights, overheating, brake and suspension issues, HVAC faults, and circuit testing.

Trims covered

  • Base Sport Utility 4-Door
  • Hybrid Sport Utility 4-Door
  • Premier Sport Utility 4-Door

Engines covered

  • 2.5L 2488CC 152Cu. In. l4 FULL HYBRID EV-GAS (FHEV) DOHC Naturally Aspirated
  • 2.5L 2488CC 152Cu. In. l4 GAS DOHC Naturally Aspirated
  • 3.0L 2968CC 181Cu. In. V6 GAS DOHC Naturally Aspirated

What’s inside

  • Body
  • Brakes
  • Chassis Electrical
  • Driveline
  • Engine Cooling
  • Engine Electrical
  • Engine Mechanical
  • Engine Performance & Emission Controls
  • Fuel System
  • General Information & Identification
  • Heating, Ventilation, & Air Conditioning
  • Hybrid & Electric Vehicle Systems
  • Steering
  • Suspension
  • Transmission, Clutch, & Transfer Case
  • Wiring Diagrams

Why this manual matters

  • Faster diagnostics with system-based troubleshooting and wiring diagrams
  • Clear procedures and reference sections to reduce guesswork and rework
  • Helpful for maintenance planning and verifying parts/specs before repairs

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Vehicle Safety Data

2009 Mercury Mariner Recalls & Complaints

NHTSA #14V28400029/05/2014Component: STEERING:ELECTRIC POWER ASSIST SYSTEM

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 ste

Consequence

If power steering assist is lost, greater driver effort would be required to steer the vehicle at lo

Remedy

Ford will notify owners, and dealers will update the software for the power steering control module

NHTSA #15E04500003/06/2015Component: SUSPENSION:FRONT:WHEEL BEARING

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

Consequence

Use of an incorrectly sized wheel bearing can adversely affect the braking and steering of the vehic

Remedy

Timken has begun notifying distributors who will offer purchasers replacement wheel bearings, free o

TSB #10205008

6F35 Transmission - Fluid leak at left side halfshaft seal - built on or before 10/14/2013

TSB #10140323

The Accessory (Wireless) Keyless Entry Keypad can only be used with vehicles that are factory built with Remote Keyless Entry (RKE). The master code for the Accessory (Wireless) Keyless Entry Keypad can be retrieved from FMCDealer - Parts a

TSB #10138524

The Accessory (Wireless) Keyless Entry Keypad can only be used with vehicles that are factory built with Remote Keyless Entry (RKE). The master code for the Accessory (Wireless) Keyless Entry Keypad can be retrieved from FMCDealer - Parts a

TSB #10137113

Replacing the original equipment SYNC/Navigation system with either an aftermarket SYNC/Navigation kit or modifying original SYNC/Navigation parts to provide additional features is not recommended nor supported on any Ford, Mercury or Linco

TSB #10109070

The 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 diagnose possible ETB concerns. The IDS has a limited refresh rate

TSB #10095184

REPLACING THE ORIGINAL EQUIPMENT SYNC/NAVIGATION SYSTEM WITH EITHER AN AFTERMARKET SYNC/NAVIGATION KIT OR MODIFYING ORIGINAL SYNC/NAVIGATION PARTS TO PROVIDE ADDITIONAL FEATURES IS NOT RECOMMENDED NOR SUPPORTED ON ANY FORD, MERCURY OR LINCO

TSB #10091151

SOME 2008-2017 FORD/MERCURY/LINCOLN VEHICLES EQUIPPED WITH SYNC MAY GENERATE A VHR THAT IDENTIFIES A CONCERN WITH THE BRAKES AND SUSPENSION CATEGORY INDICATING SERVICE IS REQUIRED DUE TO A BRAKE SYSTEM WARNING LAMP BEING ILLUMINATED. IF THE

TSB #10090681

SOME 2008-2017 FORD/MERCURY/LINCOLN VEHICLES EQUIPPED WITH SYNC MAY GENERATE A VHR THAT IDENTIFIES A CONCERN WITH THE BRAKES AND SUSPENSION CATEGORY INDICATING SERVICE IS REQUIRED DUE TO A BRAKE SYSTEM WARNING LAMP BEING ILLUMINATED. IF THE

Showing the 8 most recent of 31 technical service bulletins on file with NHTSA.

20170809Component: SERVICE BRAKESCrash reported1 injured

HAVE HAD MULTIPLE BRAKE FAILURES INCLUDING AN ACCIDENT THAT MY DAUGHTER WAS INVOLVED IN AS A RESULT OF BRAKE FAILURE. THE BRAKES WILL WORK FINE FOR A SHORT PERIOD OF TIME AND THEN OUT OF NOWHERE YOU

20110908Component: AIR BAGSCrash reported1 injured

TL* THE CONTACT OWNS A 2009 MERCURY MARINER. WHILE THE CONTACT WAS DRIVING APPROXIMATELY 25 MPH, AN OPPOSING VEHICLE UNEXPECTEDLY DROVE INTO HER LANE CAUSING A HEAD ON CRASH. THE CONTACT SUFFERED A PI

20250717Component: STRUCTURE:BODYCrash reported

Drivers rear shock rusted off the wheel well causing wheel to snap and metal frame to hit the ground while I was traveling 40 mph. At this time the other wheels locked up and started squealing causing

20250717Component: WHEELSCrash reported

Drivers rear shock rusted off the wheel well causing wheel to snap and metal frame to hit the ground while I was traveling 40 mph. At this time the other wheels locked up and started squealing causing

20250717Component: SUSPENSIONCrash reported

Drivers rear shock rusted off the wheel well causing wheel to snap and metal frame to hit the ground while I was traveling 40 mph. At this time the other wheels locked up and started squealing causing

Showing the 5 most serious of 422 complaints filed with NHTSA.

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