2003 Mazda 6 service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Designed for technicians and DIY owners, this manual helps you diagnose issues correctly, follow proven repair steps, and use wiring diagrams and system sections to track faults faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical diagnostics with wiring diagrams
- Coverage across major systems: engine, transmission/driveline, brakes, steering, suspension, HVAC, and more
Trims covered
- i Sedan 4-Door
- S Sedan 4-Door
Engines covered
- 2.3L 2260CC l4 GAS DOHC Naturally Aspirated
- 3.0L 2968CC 181Cu. In. V6 GAS DOHC Naturally Aspirated
Index / Table of contents
- 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
Mazda North America Operations (Mazda) is recalling certain 2003-2008 Mazda6, 2006-2007 Mazdaspeed6 and 2004 MPV vehicles nationwide. Mazda is also recalling 2005-2006 MPV vehicles in Alabama, Arizona, Arkansas, California, Delaware, the District of Columbia, Florida, Georgia, Hawaii, Illinois, Indiana, Kansas, Kentucky, Louisiana, Maryland, Mississippi, Missouri, Nebraska, Nevada, New Jersey, New Mexico, North Carolina, Ohio, Oklahoma, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, West Virginia, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands (Saipan), and the U.S. Virgin Islands. On July 9, 2019 this recall was expanded to include certain 2004-2011 RX-8 vehicles that were previously recalled under 16V-354 but have not yet been repaired. These vehicles are equipped with certain air bag inflators assembled as part of the passenger frontal air bag modules, and used as original equipment or replacement equipment. In the event of a crash necessitating deployment of the passenger frontal air bag, these passenger air bag inflators may explode due to propellant degradation occurring after long-term exposure to absolute humidity and temperature cycling.
An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Owners are advised not to drive their vehicles until the remedy is performed. Mazda will notify owners, and dealers will replace the front passenger air bag inflator with an alternate inflator, free of charge. The recall began July 6, 2018. Mailing to the affected RX-8 owners began July 6, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 2618F. Note: With the addition of the RX-8 vehicles, this recall fully supersedes recall 16V354.
Mazda North American Operations (Mazda) is recalling certain 2003-2008 Mazda6, 2004-2005 MPV, 2004 RX-8, and 2006-2007 Mazdaspeed6 vehicles. These vehicles had their passenger frontal air bag inflators previously replaced under a prior recall using inflators of the same design. The inflators may explode due to propellant degradation occurring after long-term exposure to high absolute humidity, temperature and temperature cycling.
An inflator explosion may result in sharp metal fragments striking the driver or other occupants resulting in serious injury or death.
Owners are advised not to drive their vehicles until the remedy is performed. Mazda will notify owners, and dealers will replace the front passenger air bag inflator with an alternate one, free of charge. The recall began December 3, 2019. Owners may contact Mazda customer service at 1-800-222-5500, option 4. Mazda's number for this recall is 2618F. Note: This recall supersedes recalls 13V130, 14V362, 14V773 and 15V869.
Mazda North American Operations (Mazda) is recalling certain model year 2003-2008 Mazda6, 2004-2008 RX-8, and 2006-2007 Mazdaspeed6 vehicles. The affected vehicles are equipped with a dual-stage driver frontal air bag that may be susceptible to moisture intrusion and other factors, including manufacturing variability that, over time, could cause the inflator to rupture.
In the event of a crash necessitating deployment of the driver's frontal air bag, the inflator could rupture with metal fragments striking the driver or other occupants resulting in serious injury or death.
Owners are advised not to drive their vehicles until the remedy is performed. Mazda will notify owners, and dealers will replace the driver's frontal air bag inflator with an alternate inflator, free of charge. The recall began on September 12, 2017. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 1417G. Note: This recall supersedes recall 15V-382.
SABERSPORT IS RECALLING 16,270 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
SABERSPORT WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON MAY 11, 2009. OWNERS MAY CONTACT SABERSPORT AT 1-909-598-7589.
DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 108, "LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT." THESE LAMPS DO NOT CONTAIN THE REQUIRED AMBER SIDE REFLECTORS.
DECREASED LIGHTING VISIBILITY MAY RESULT IN A VEHICLE CRASH.
DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT 1-626-272-1798.
THULE, INC. IS RECALLING 2,323 OWNER-INSTALLED ROOF-MOUNTED FIT KITS, MODELS 3068 AND 3069, MANUFACTURED BETWEEN JANUARY 1, 2008 AND FEBRUARY 28, 2009 THAT ARE USED WITH THULE PODIUM FOOT PACKS, MODELS 460 AND 460R. THESE FIT KITS WERE SOLD AS AFTERMARKET EQUIPMENT FOR USE ON THE VEHICLES LISTED ABOVE. THE BOLT(S) USED TO SECURE THE FOOT TO THE VEHICLE WAS MANUFACTURED TO A HARDNESS THAT MAY CAUSE THE BOLT(S) TO BE BRITTLE AND POTENTIALLY BREAK UNDER STRESS.
THIS MAY RESULT IN THE BOLT(S) SNAPPING OFF DURING USE OR WITHOUT A LOAD. THE UNSECURED RACK AND LOAD CAN THEN COME LOOSE WHILE DRIVING CREATING A POTENTIAL ROAD HAZARD, POSSIBLY RESULTING IN A VEHICLE CRASH.
THULE WILL MAIL A RETRO FIT KIT ALONG WITH REPAIR INSTRUCTIONS TO OWNERS FREE OF CHARGE. THE SAFETY RECALL IS EXPECTED TO BEGIN ON OR BEFORE APRIL 13, 2009. OWNERS MAY CONTACT THULE TOLL-FREE AT 1-800-238-2388.
CERTAIN PASSENGER VEHICLES FAIL TO COMPLY WITH REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 135, "PASSENGER CAR BRAKE SYSTEMS." DURING PRODUCTION, THE FLOAT IN THE FLUID LEVEL SENSOR IN THE BRAKE RESERVOIR CAN BE FORCED OFF OF THE GUIDE RAIL DURING THE FILLING OF THE MASTER CYLINDER.
SHOULD THIS OCCUR, IT IS POSSIBLE THAT THE FLOAT WILL NOT RETURN TO THE GUIDE RAIL AND THE BRAKE FLUID LEVEL WARNING INDICATOR MAY NOT FUNCTION.
MAZDA HAS NOT YET PROVIDED A REMEDY FOR THIS CAMPAIGN. OWNER NOTIFICATION BEGAN JULY 14, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MAZDA AT 1-800-222-5500.
ON CERTAIN PASSENGER VEHICLES, THE FUEL SENDER UNIT (FSU) MAY HAVE BEEN IMPROPERLY INSTALLED IN THE FUEL TANK, PRODUCING AN INADEQUATE SEAL, AND FUEL MAY LEAK.
A FIRE COULD OCCUR IN THE PRESENCE OF AN IGNITION SOURCE.
DEALERS WILL INSPECT THE TOP OF THE FUEL TANK, AND IF NECESSARY, REPAIR OR REPLACE IT. OWNER NOTIFICATION BEGAN FEBRUARY 9, 2004. OWNERS SHOULD CONTACT MAZDA AT 1-800-222-5500.
ON CERTAIN MINI VANS AND PASSENGER VEHICLES, THE SOCKET HOLDER IN THE FOG LIGHTS IS INSTALLED IN THE LAMP CASING USING PRESSURE. DURING OPERATION OF THE FOG LIGHT, THE HEAT FROM THE BULB CAN EXPAND THE SOCKET HOLDER. THE EXPANSION CAN FORCE THE SOCKET HOLDER REARWARD. AFTER REPEATEDLY BEING SUBJECT TO THIS EXPANSION, IF THE FOG LIGHT IS ALSO SUBJECTED TO VIBRATION DURING VEHICLE OPERATION, THE SOCKET HOLDER WITH THE BULB HOLDER AND THE WIRING HARNESS MAY SEPARATE FROM THE FOG LIGHT CASING.
SHOULD THIS OCCUR, THE BULB SOCKET AND THE HARNESS CAN DROP INSIDE THE BUMPER AND POSSIBLY BUT RARELY, THE HEAT GENERATED BY THE BULB CAN CAUSE THE BUMPER TO BURN.
DEALERS WILL INSTALL A SPRING TO PREVENT THE SOCKET HOLDER FROM SEPARATING FROM THE LAMP CASE. OWNER NOTIFICATION BEGAN ON JULY 14, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MAZDA AT 1-800-222-5500.
This Service Alert supersedes the previously issued SA listed below: The changes are noted in Red. SA-011/24 02/12/24, 06/06/24, 07/29/24 DESCRIPTION Mazda has developed factory recommended scheduled maintenance services that support all ma
A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is
When replacing the SiriusXM satellite radio unit, a call must be made to inform SiriusXM of the existing Radio ID and the new/replacement SAT Radio ID as soon as possible to ensure the customer leaves the dealership with an active SAT radio
Some customers may complain about a noisy HVAC blower motor or odor after a cabin air filter replacement. Foreign debris on the blower motor after servicing the cabin air filter may be the cause. During the removal of the cabin air filter,
A musty/mildew type odor may come from the vents when the air conditioning (A/C) system is operating. It is most noticeable when the A/C is first turned ON. This odor is the result of mold growth in the A/C evaporator/cooling unit which is
Some vehicles may experience exterior trim heat damage such (melted, separating, etc.) when parked near a glass building or Low-E windows. This may be caused by the sun's reflection.
In accordance with Federal regulations, follow the procedure listed below when replacing a speedometer. NOTE: Tampering with a motor vehicle odometer is strictly prohibited by Federal, and State laws. It is the dealers responsibility to com
Mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. Mazda recommends dealers follow the scheduled maintenance tables as cited in the vehicle-specific workshop manual or owner's manu
Showing the 8 most recent of 155 technical service bulletins on file with NHTSA.
I HIT A DEER AT 45 MILES AN HOUR THEN HIT THE HIT TOTALLING THE CAR, THE AIRBAG DID NOT COME OUT, THE SEAT BELT DID NOT LOCK CAUSING ME TO BE SLAMMED INTO THE STEELING WHEEL, NOW I SUFFER GREAT PAIN, CAN'T MOVE MY NECK, CAN'T LAY DOWN BC OF SUCH BAD HEADACHE I THROW UP, I SLEEP SITTING UP, SOMETHING IN THE CAR LIKE METAL FRAGMENT HIT ME IN THE LEFT EYE, NOW I CAN BARELY SEE OUT OF MY LEFT EYE. AND MUST CONTINUE MEDICAL TREATMENT. AND SOMEONE IS GOING TO PAY FOR MY MEDICAL TREATMENT AND PAIN AND SUFFERING, BC THAT SEAT BELT NOT LOCKING CAUSED MY INJURIES, MY INSURANCE COMPANY TOTALLED MY CAR O
I WAS IN A CAR ACCIDENT AND OUT OF 6 AIR BAGS ALL OF THEM FAILED TO COME OUT. BECAUSE OF THERE FAILURE I RECEIVED VARIOUS INJURIES THAT ARE KEEPING ME FROM WORK. *NM
WHILE DRIVING AT 45MPH CONSUMER'S VEHICLE WAS HIT FROM BEHIND, CAUSING IT TO REAR END ANOTHER VEHICLE. UPON IMPACT, BOTH FRONTAL AIR BAGS DID NOT DEPLOY. DRIVER SUSTAINED MINOR INJURIES. *AK PRIOR TO ACCIDENT, LEFT FRONT TIRE KEPT LOOSING AIR. DEALER RE-BEADED IT BUT DIDN'T FOUND ANYTHING WRONG WITH THE TIRE. DEALER TOLD CONSUMER TO COME BACK IF TIRES STILL LOSSES AIR. *LA
WHILE DRIVING THE DRIVER LOST CONTROL OF THE VEHICLE AND HIT A TREE. THE FRONT, SIDE, AND REAR AIR BAGS DID NOT DEPLOY. THE DRIVER SUSTAINED A BROKEN ARM AND THE VEHICLE WAS DECLARED A TOTAL LOST. PLEASE PROVIDE ANY ADDITIONAL INFORMATION. *NM
MY FOUR YEAR OLD SON GOT HIS FINGER CAUGHT IN THE DOOR HANDLE OF MY 2003 MAZDA6. THE DOOR HANDLES DIFFER FROM OTHER HANDLES IN THAT A SECTION OF THEM PULL OUT AND THEN RETRACT BACK.*AK
THIS CAR WAS DESTROYED IN AN ACCIDENT, AND AS SUCH CAN NO LONGER BE REPAIRED.
TL* THE CONTACT OWNS A 2003 MAZDA MAZDA6. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 50 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE CONTACT STATED THAT BLUE SMOKE WAS EMITTING FROM THE TAIL PIPE AS THE CHECK ENGINE LIGHT ILLUMINATED. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR DIAGNOSIS. THE MECHANIC STATED THAT THE CATALYTIC CONVERTERS WERE CLOGGED AND WOULD HAVE TO BE REPLACED. ADDITIONALLY, THE MECHANIC STATED THAT THE FRONT PASSENGER'S SIDE TIE ROD WAS LOOSE AND COULD FRACTURE. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS
AFTER BEING RUN OFF THE HIGHWAY BY A SUV THE AIR BAGS FAILED TO DEPLOY DURING A HEAD ON COLLISION INTO THE WOODS GOING 65MPH DOWN A 50FT EMBANKMENT. WHOLE FRONT END OF THE CAR, AND THE DRIVE SIDE OF THE CAR WAS DESTROYED, CAUSING THE ENGINE TO COME UP RESULTING IN THE STEERING WHEEL AND CONSOLE TO COME UP. *TR
Showing the 8 most serious of 175 complaints filed with NHTSA.
