Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Mazda 6 L4-2.3LFACTORY OEM SERVICE PROCEDURE
Repair and Diagnosis: Technical Service Bulletins
- How to Find Technical Service Bulletins by Category/Symptom
- Recalls
- Emissions
- Generals
- Safety
- Recall - Fuel Pump Lock Ring/Seal Potential Leakage
- Recall03V531000: Fuel Tank Leakage Potential
- Recall 03V207000: Low Brake Fluid Indicator Inoperative
- Recall - Brake Fluid Level Float Inspection/Repair
- Recall - Fog Light Socket Holder Modification
- Recall 03V206000: Fog Lamp Bulb Socket Fire Hazard
- Recall 13V130000: Passenger Air Bag Defect
- Customer Interest
- Steering - Steering Wheel Off Center When Driving Straight
- Interior - Seats Shake/Make Noise When Braking
- Engine - VVT Noise At Engine Start Up
- Steering/Suspension - Steering Wheel Off-Center
- Exhaust System - Rubbing Noise At Idle
- Brakes - Front Brake Judder or Moaning Noise
- Ignition System - MIL ON/DTC P0300-P0304 Set
- A/C - Fogging on Lower Exterior of Windshield
- Engine - Engine Compartment Groans/Rattles/Squeaks
- Emissions - Certain OBD WDS Test Modes Inoperative
- Engine Controls - MIL ON, DTC P0335, No Start
- Engine Controls - Surge While Cruising at 40 - 50 Mph
- Antitheft System - Will Not Set
- Emissions - MIL ON, DTC P2227 Set
- Engine Controls - False MIL ON/False 'U' Codes Set
- Body - Doors Hard to Close When Extremely Cold
- Body - Doors Hard to Close in Extreme Cold
- Audio System - No Sound From CD Player/Speakers
- Traction Control System - Switch Sticking
- Tires/Wheels - Body Vibration/Steering Wheel Shimmy
- Lighting - Front Turn Signals Inoperative
- Interior - Lack of Heat From Seat
- A/C - Erratic Seat Heater Operation
- Suspension - Front Suspension Popping/Clunking Noise
- Interior - Driver Side Kick Panel Falls Off
- Engine Controls - RPM Fluctuation During A/T Shifts
- Engine Controls - Rough Idle/Hesitation/DTC P0300 Set
- Brakes - Front brake Squeak/Moan When Cold
- A/C - Mode Switch Won't Go Into Recirculation Mode
- Brakes - Squeaking When Pressing/Releasing Brake Pedal
- Fuel System - Hesitation at High Altitude
- Body - Wind Noise From Around Windows
- A/T - Hard 1-2 Upshift During Warm-Up
- Engine Controls - MIL ON/DTC P0106 Set
- Drivetrain - Front Axle Knocking Noises in Extreme Cold
- Steering - Steering Shaft Clunk on Acceleration/Turns
- Steering - Drift/Pull Diagnostics
- Body - Various Wind Noise Concerns
- A/C - Musty/Mildew Odor Elimination
- Engine - Unstable Idle/Engine Stalling
- Suspension - Front End Knock Or Squeak On Bumps
- A/C - Musty/Mildew Odors From vents
- Overview
- Repair Procedures
- Information
- 2007-2009 CX-9 Front A/C/2007-2009 CX-9 Rear A/C
- 2007-2009 CX-7
- 2003-2008 MAZDA6
- 1998-2002 626
- 2004-2009 MAZDA3
- 1998-2003 Protege and PROTEGE5
- 2000-2003 MPV Front A/C/2000-2003 MPV Rear AC (if equipped)
- 1998 MPV Front A/C/1998 MPV Rear A/C (if equipped)
- 2001-2002 Millenia (With Cabin Air Filter)
- 1998-2000 Millenia
- 2006-2008 MX-5
- 1999-2005 Miata
- Interior - Driver's Seat Chatters/Seat Lift Inoperative
- Interior - Front Seat Clunk Noise While Braking
- Interior - Leather Seat Squeaking Noises
- Interior - Front Seat Head Rest Rattling Noises
- Interior - Front Seat Back Squeaking Noises
- Interior - Squeaking Noise From Under The Driver's Seat
- Interior - Seat Back Squeaking Noises
- Emissions - MIL ON/DTC's P0441/P0442/P0455/P0456 Set
- A/T - Various Fluid Leaks
- Steering - Steering Wheel Off Center, No Pull Or Drift
- Superceded Bulletins
- 0000309 - 01/12/09
- 0102906 - 07/28/06
- 0700607 - 10/15/08
- 0200104 - 01/15/08
- 0900306 - 01/26/06
- 0900205 - 01/20/05
- 0100303 - 05/06/04
- 0400404 - 07/01/04
- 092103 - 11/07/03
- A/C - Rear Defroster Grid Repair
- Lighting - Headlight Lens Condensation or Water Entry
- Lighting - Condensation In Front/Rear Lamps
- Lighting - Moisture In Front/Rear Lamps
- Interior - Unable to Adjust Driver's Seat Manual Lift
- 0904108 - 12/19/08
- Interior - Seats Noisy/Shake Back And Forth When Braking
- Body - Paint Damage Repair Guide
- Interior - Avoiding Driver Floor Mat/Pedal Interference
- Body - Door Sash/Trunk Lid Surface Staining
- Body - Wind Noise Around Doors
- Interior - Poor Dash Surface Appearance
- A/C - Musty/Mildew Odors From Vents
- Suspension - Strut/Shock Replacement Guidelines
- Suspension - Strut/Shock Absorber Replacement Guidelines
- Suspension - Shock/Strut Replacement Guidelines
- Suspension - Shock Absorber/Strut Replacement Guidelines
- Steering - Clunk Noise When Turning Steering Wheel
- Electrical - Battery Testing Procedures
- Electrical - Battery Testing Procedure Requirements
- Electrical - Battery Testing/Charging Procedures
- Battery - Test Procedures
- Brakes - Noise/Judder/Dragging
- M/T - Clutch Chatter/Judder During Warm Up
- A/T - Cooler/Line Flushing Procedure
- A/T - Cooler Line Flushing Procedure
- A/T Controls - 1-2 Shift Shock During Warm-Up
- Emissions - MIL ON/DTC's P0441/P0442/P0455/P0456
- Engine Controls - O2, A/F Sensor Removal Precautions
- Engine Controls - Oxygen Sensor Removal Precaution
- Engine Controls - Oxygen Sensor Removal Precautions
- Campaign - PCM/TCM Update Programming
- Exhaust System - Sulfur Smell
- Exhaust System - Excessive Sulfur Odors
- Exhaust System - Rubbing Noises at Idle
- Exhaust System - Rubbing Noise at Idle or Shut Down
- Exhaust System - Rubbing Noise at Idle
- Engine - Oil Filter Cartridge Housing Damage Prevention
- Engine - Crankshaft Pulley Service Precautions
- Engine - Front Crankshaft Bolt Service Warnings
- Engine - Crankshaft Pulley Bolt Service Precaution
- Engine - Front Crankshaft Bolt Service Precaution
- Engine - VVT Noise At Engine Start Up
- Engine - Oil Filter Cartridge Removal
- Tires/Wheels - Vibration Concerns
- Steering/Suspension - Pull/Drift Diagnosis & Repair
- Steering/Suspension - Pull or Drift While Driving
- A/T - Fluid Usage/Applications
- Steering - Steering Wheel Is Off Center
- A/T - Correct Fluid Applications
- Ignition System - MIL ON/Misfire DTC's Stored/Rough Idle
- All Technical Service Bulletins
- Interior - Poor Upper Dash Surface Appearance
- Steering - Steering Wheel Off Center When Driving Straight
- Interior - Seats Shake/Make Noise When Braking
- Electrical - Battery Maintenance Information
- Body - Paint Damage Repair Guide
- Exhaust System - Excessive Sulfur Odors
- Engine - VVT Noise At Engine Start Up
- Steering/Suspension - Steering Wheel Off-Center
- Brakes - Judder/Dragging Diagnostic Information
- A/T - Cooler Line Flushing Procedures
- Instruments - Ambient Temperature Display Inaccurate
- A/T - Diagnostic Procedures
- Exhaust System - Rubbing Noise At Idle
- Interior - Console Damage Prevention During Removal
- Fuel System - Fuel Ethanol Content Testing
- Computers/Controls KAM Memory Clearing After VVT R & R
- Mirrors - Door Mirror Glass Is Loose
- M/T - 4th Gear Service Precautions
- Engine - Correct Oil Filter Wrench Applications
- A/C - Poor Blower Motor Performance
- Engine - Camshaft Timing Information
- Wheels/Tires - Tire Pessure/Rotation Information
- Mirrors - Interior Mirror Removal
- Electrical - Lightning Strike Information
- Wheels - Aluminum Wheel Cleaning Precautions
- Body - Front End Pop Noise Over Bumps
- Electrical - Battery Maintenance
- Recall - Fuel Pump Lock Ring/Seal Potential Leakage
- Recall03V531000: Fuel Tank Leakage Potential
- Brakes - Front Brake Judder or Moaning Noise
- Ignition System - MIL ON/DTC P0300-P0304 Set
- A/C - Fogging on Lower Exterior of Windshield
- Engine - Engine Compartment Groans/Rattles/Squeaks
- Campaign - Door Sash Clear Coat Staining
- Recall - PCM/TCM Reprogramming for I/M Failure
- Emissions - Certain OBD WDS Test Modes Inoperative
- Engine Controls - MIL ON, DTC P0335, No Start
- Recall - PCM Reprogramming for MIL/DTC P2404
- Engine Controls - Surge While Cruising at 40 - 50 Mph
- A/C - Rear Window Defroster Grid Diagnosis/Repair
- Interior/Instruments- Mirror/Compass Operation/Diagnosis
- Recall 03V207000: Low Brake Fluid Indicator Inoperative
- Recall - Brake Fluid Level Float Inspection/Repair
- Antitheft System - Will Not Set
- Emissions - MIL ON, DTC P2227 Set
- Engine Controls - False MIL ON/False 'U' Codes Set
- Body - Doors Hard to Close When Extremely Cold
- Body - Doors Hard to Close in Extreme Cold
- Electrochromatic Mirror - Installation Precautions
- Interior - Glove Compartment Removal Caution/Procedure
- Audio System - No Sound From CD Player/Speakers
- Recall - Fog Light Socket Holder Modification
- Traction Control System - Switch Sticking
- Tires/Wheels - Body Vibration/Steering Wheel Shimmy
- Audio System - Center Panel Module Removal Precaution
- Lighting - Front Turn Signals Inoperative
- Interior - Lack of Heat From Seat
- A/C - Erratic Seat Heater Operation
- Recall 03V206000: Fog Lamp Bulb Socket Fire Hazard
- Suspension - Front Suspension Popping/Clunking Noise
- Interior - Driver Side Kick Panel Falls Off
- Wheels - Wheel Lock Installation Precautions
- Engine Controls - RPM Fluctuation During A/T Shifts
- Engine Controls - Rough Idle/Hesitation/DTC P0300 Set
- Brakes - Front brake Squeak/Moan When Cold
- Wipers/Washers - Wiper Blade Cleaning & Maintenance
- A/C - Mode Switch Won't Go Into Recirculation Mode
- Brakes - Squeaking When Pressing/Releasing Brake Pedal
- A/C - Tracer Dye Usage Recommendations
- Fuel System - Hesitation at High Altitude
- Ignition System - Spark Plug Removal/Installation
- Body - Wind Noise From Around Windows
- Electrical - Battery Charging Precautions
- A/T - Hard 1-2 Upshift During Warm-Up
- Air Bag System - Affect of Accessories On Air Bag Sys.
- Keyless Entry - Security Access Procedure
- Engine Controls - MIL ON/DTC P0106 Set
- Cooling System - Reconditioned Coolant Recommendations
- Campaign - Cooling Fan Control Module Replacement
- Engine - Front Crankshaft Bolt Service Precautions
- Wheels - Stain Prevention Information
- A/T - Range Switch Removal/Installation Caution
- Drivetrain - Front Axle Knocking Noises in Extreme Cold
- Steering - Steering Shaft Clunk on Acceleration/Turns
- Steering - Drift/Pull Diagnostics
- Computers/Controls - Module Reprogramming Precautions
- Engine - Oil Filter Element Replacement Precautions
- Body - Various Wind Noise Concerns
- A/C - Musty/Mildew Odor Elimination
- Cooling System - Small Water Pump Leak Explanation
- Engine Controls/Emissions - MIL ON/DTC's P2404/P0456
- Engine - Unstable Idle/Engine Stalling
- Suspension - Front End Knock Or Squeak On Bumps
- Interior, A/C - Seat Heater Inspection Procedures
- A/C - Musty/Mildew Odors From vents
- Overview
- Repair Procedures
- Information
- 2007-2009 CX-9 Front A/C/2007-2009 CX-9 Rear A/C
- 2007-2009 CX-7
- 2003-2008 MAZDA6
- 1998-2002 626
- 2004-2009 MAZDA3
- 1998-2003 Protege and PROTEGE5
- 2000-2003 MPV Front A/C/2000-2003 MPV Rear AC (if equipped)
- 1998 MPV Front A/C/1998 MPV Rear A/C (if equipped)
- 2001-2002 Millenia (With Cabin Air Filter)
- 1998-2000 Millenia
- 2006-2008 MX-5
- 1999-2005 Miata
- A/C - Revised Blower Motor Replacement Procedure
- Body - Engine Compartment Shroud Appearance
- Lighting - Plastic Headlamp Lens Maintenance Cautions
- Engine - Component/Engine Replacement Guidelines
- Engine - Noise Diagnostic Information
- Interior - Driver's Seat Chatters/Seat Lift Inoperative
- Interior - Front Seat Clunk Noise While Braking
- Interior - Leather Seat Squeaking Noises
- Interior - Front Seat Head Rest Rattling Noises
- Interior - Front Seat Back Squeaking Noises
- Interior - Squeaking Noise From Under The Driver's Seat
- Interior - Seat Trim Replacement Procedure
- Interior - Seat Back Squeaking Noises
- Body - Windshield Flaw/Scratch/Crack Information
- Battery - Testing Information
- Wipers/Washers - Wiper Blade Insert Replacement
- Engine Controls - O2 Sensor Removal Precautions
- Electrical - Battery Eye Condition Monitor Information
- Emissions - MIL ON/DTC's P0441/P0442/P0455/P0456 Set
- Campaign - Warranty Information Booklet Update
- Dealer Letter
- Model Year 2000 California Emission Control Warranty
- Model Year 2001 California Emission Control Warranty
- Model Year 2002 California Emission Control Warranty
- Model Year 2003 California Emission Control Warranty
- Model Year 2004 California Emission Control Warranty
- Model Year 2005 California Emission Control Warranty
- Model Year 2006 California Emission Control Warranty
- Model Year 2007 California Emission Control Warranty
- Model Year 2008 California Emission Control Warranty
- Model Year 2009 California Emission Control Warranty
- Reimbursement Plan
- Reimbursement Form
- Owner Letter
- A/T - Various Fluid Leaks
- Keyless Entry - Transmitter Battery Replacement Cautions
- Fuel System - Ethanol Fuel Usage
- Suspension - Shock Absorber/Strut Replacement Guidelines
- Lighting - Condensation In Front/Rear Combination Lamps
- Recall 13V130000: Passenger Air Bag Defect
- Steering - Steering Wheel Off Center, No Pull Or Drift
- A/T - ATF Applications
- Interior - Proper Floor Mat Usage And Installation
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.