2008 Mercury Mariner Service and Repair Manual

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Factory-Grade Data

The 2008 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

  • 2.3L 140Cu. In. l4 FULL HYBRID EV-GAS (FHEV) DOHC Naturally Aspirated
  • 2.3L 140Cu. 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

2008 Mercury Mariner Recalls & Complaints

NHTSA #15V60600029/09/2015Component: POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT

Ford Motor Company (Ford) is recalling certain model year 2001-2008 Ford Escape and Mercury Mariner vehicles manufactured March 31, 2001, to September 1, 2009. The affected vehicles are equipped with

Consequence

If the shift lever disengages from the transmission, a driver may be unable to shift gear positions

Remedy

Ford will notify owners, and dealers will inspect the transmissions and either tighten the manual sh

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 #10056710

MERCURY/FORD: IN ONE OR MORE SPEED SETTINGS, ELECTRONIC MANUAL TEMPERATURE CONTROL (EMTC) A/C SYSTEM IS WARM AND/OR LACK BLOWER MOTOR OPERATION IN SETTINGS DUE TO DAMAGED BLOWER MOTOR RESISTOR CAUSED BY WATER ENTERING HEATER AND EVAPORATOR

TSB #10055355

FORD: THE WRENCH LIGHT WILL ILLUMINATE WHEN 4X4 FUNCTION IS INOPERATIVE DUE TO ACTIVE TORQUE COUPLING SOLENOID COIL WIRING BEING BROKE, BUT A KIT IS AVAILABLE TO SERVICE REAR AXLE ASSEMBLY/REAR DRIVE UNIT (RDU), AT LOWER LEVEL. MODEL 2008-2

TSB #10054916

FORD/MERCURY: IF DIAGNOSTIC CODE B2278 IS STORED IN POWER STEERING CONTROL MODULE (PSCM), IT NEEDS REPLACING WITH TORQUE SENSOR SERVICE KIT THAT IS AVAILABLE AND IF NOT, DOES NOT APPLY. MODEL 2008-2012 ESCAPE, 2008-2011 MARINER. *PE

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

20140724Component: STEERINGCrash reported1 injured

TL* THE CONTACT OWNS A 2009 MERCURY MARINER. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 35 MPH, THE POWER STEERING FAILED CAUSING HER TO LOSE CONTROL OF THE VEHICLE. AS A RESULT, THE CONTACT

20130904Component: AIR BAGSCrash reported1 injured

DRIVER'S SIDE DOOR WAS STRUCK BY A CHEVY ASTRO CARGO VAN GOING APPROXIMATELY 70 MILES PER HOUR ON THE HIGHWAY (D.C. BELTWAY) AND THE SIDE AIRBAGS DID NOT DEPLOY. A MARYLAND STATE TROOPER (WHO SAW THE

20240629Component: UNKNOWN OR OTHERCrash reported

Car was in accident in October of 2022 has been lost since

20220915Component: UNKNOWN OR OTHERCrash reported

My power steering light popped on about 6-9 months ago for about 10 seconds and then turned off. About a month ago now, I gently hit a boulder with my front right tire. I dented a couple of steering r

20161005Component: ENGINECrash reported

MY WIFE WAS DRIVING ON HER WAY HOME, AND OUT OF NOWHERE THE STEERING FELT WEIRD, AND WHILE DRIVING THE CAR SHUT OFF. NO POWER STEERING OR POWER BRAKES (DUE TO ENGINE SHUTTING OFF) AND WE DO NOT KNOW W

Showing the 5 most serious of 554 complaints filed with NHTSA.

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