2015 Mazda 3 Service and Repair Manual

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Covers all 2015 3 trims — s Touring Hatchback 4-Door, I Sport Hatchback 4-Door, I Touring Sedan 4-Door +9 more ·
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2015 Mazda 3 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

  • s Touring Hatchback 4-Door
  • I Sport Hatchback 4-Door
  • I Touring Sedan 4-Door
  • GS Sedan 4-Door
  • i Grand Touring Hatchback 4-Door
  • GT Sedan 4-Door
  • S Sedan 4-Door
  • s Touring Sedan 4-Door
  • i SV Sedan 4-Door
  • I Touring Hatchback 4-Door
  • i Sedan 4-Door
  • S Hatchback 4-Door
  • s Grand Touring Sedan 4-Door
  • i Grand Touring Sedan 4-Door
  • s Grand Touring Hatchback 4-Door
  • I Sport Sedan 4-Door
  • GX Sedan 4-Door

Engines covered

  • 2.5L 2488CC 152Cu. In. l4 GAS DOHC Naturally Aspirated
  • 2.0L 1998CC 122Cu. In. l4 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
NHTSA #16V68400022/09/2016Component: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY

Mazda Motors North American Operations (Mazda) is recalling certain model year 2014-2016 Mazda3 vehicles manufactured January 4, 2014, to September 18, 2015. The fuel tank of the affected vehicles may have been improperly handled during manufacturing and, as a result, the welded attachment of the Inlet Check Valve (ICV) may fail and allow fuel to leak.

Consequence

A fuel leak in the presence of an ignition source increases the risk of a fire.

Remedy

Mazda will notify owners, and depending on the tank lot number, dealers will inspect the ICV weld, replacing the fuel tank, as necessary, free of charge. The recall began November 1, 2016. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 0116I.

NHTSA #17V39300022/06/2017Component: PARKING BRAKE

Mazda North American Operations (Mazda) is recalling certain 2014-2015 Mazda6 and 2014-2016 Mazda3 vehicles. Water could possibly enter the brake caliper causing the parking brake actuator shaft to corrode and possibly bind.

Consequence

If the parking brake actuator shaft binds, the parking brake may not engage or disengage fully. If the parking brake does not engage properly, the vehicle may move unexpectedly if it is parked on a slope, increasing the risk of a crash.

Remedy

Mazda will notify owners, and dealers will check the parking brake actuator shafts, replacing any that are corroded, free of charge. Remedy parts are currently unavailable. Interim notices informing owners of the safety risk were mailed August 24, 2017. Owners will receive a second notice when remedy parts become available. Owners may contact Mazda customer service at 1-800-222-5500. Mazda's number for this recall is 1217F.

NHTSA #15V62100002/10/2015Component: FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLYDo not park indoors

Mazda North American Operations (Mazda) is recalling certain model year 2015-2016 Mazda3 vehicles manufactured May 21, 2015, to August 25, 2015. The affected vehicles are equipped with a fuel tank with a shut-off valve that can allow fuel to enter into the fuel tank emissions systems. If enough fuel enters the emission system it may leak out onto the ground or result in an engine stall.

Consequence

A fuel leak in the presence of an ignition source increases the risk of a fire. An engine that stalls increases the risk of a crash.

Remedy

Mazda will notify owners, and dealers will inspect the vehicle's fuel shut-off valve. As needed, the fuel shut-off valve and the affected fuel tank emissions system components will be replaced, free of charge. The recall began on October 20, 2015. Owners are advised not to drive their vehicle until the repairs have been completed. Mazda will provide rental cars until that time. Owners may contact the Mazda Customer Experience Center at 1-800- 222-5500, option #6. Mazda's number for this recall is 8615J.

NHTSA #23V48700014/07/2023Component: BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Mazda North American Operations (Mazda) is recalling certain 2014-2018 Mazda3 and 2016-2021 CX-3 vehicles. The rearview camera image may not display properly by showing a flickering or distorted image.

Consequence

A rearview camera that does not display properly can reduce the driver's rear view, increasing the risk of a crash or injury.

Remedy

Dealers will inspect and replace the rearview camera, as necessary. In addition, dealers will install a wiring harness fastening seal. All repairs will be performed free of charge. Interim notification letters, notifying owners of the safety risk, were mailed September 13, 2023. Final owner letters for affected models and model years in the states of CT, MA, MD, NJ, NY, PA and VA were mailed August 14, 2024. The remaining owner notification letters will be mailed at a future date, anticipated on or before May 1, 2025. Owners may contact Mazda customer service at 1-800-222-5500, Option 6. Mazda's number for this recall is 6023G.

TSB #11032104

DESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle certification label. To obtain a replacement VIN plate (bulkhead-mounted and visible through the lower-left area of the windshield), contact DAG (Dealer

TSB #11032103

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

TSB #11032100

This Service Alert supersedes the previously issued SAs and bulletin(s) listed below: The changes are noted below in red. SA-010/23 02/09/23 DESCRIPTION Some customers may experience one or more electrical malfunctions after a vehicle body

TSB #11032003

This bulletin supersedes the previously issued bulletin(s) listed below. The changes are noted in Red. 01-008/23 06/05/23 Some vehicles may exhibit rattling noises from the engine compartment and oil leakage from the drive belt auto tension

TSB #11028133

There are currently 2 methods for cutting a new auxiliary key blank. A. Auxiliary Key Trace Cut Method B. Auxiliary Key Code Cut Method 2019 and newer models require a 10-digit key code to accurately cut keys 5-digit codes CANNOT be provide

TSB #11028127

Some customers may report an odor or water in the HVAC system and upon inspection, the cabin air filter may be found to be wet.

TSB #11026917

If you encounter any type of electrical concern (e.g, dead battery, engine no start, DTC(s) stored...), interview the customer before proceeding with normal MGSS diagnosis by asking if any aftermarket devices have been installed. Aftermarke

TSB #11026904

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

Showing the 8 most recent of 479 technical service bulletins on file with NHTSA.

03/05/20Component: SERVICE BRAKESCrash reported2 injured

COMMING TO A STOP CAR DIDNT SLOW DOWN AND WHEN EMERGENCY LEVER WAS PULLED FOR A STOP IT DIDNT WORK! RECALL NOTICE1217F NHTSA NUMBER17V393

03/28/20Component: ENGINEFire reported1 injured

The contact owns a 2015 Mazda Mazda3. The contact stated while driving 25 MPH, smoke was coming from under the hood of the vehicle, followed by the vehicle shut down and the check engine warning light illuminated. The contact's son opened the hood and flames came out from under the hood. The contact son burned his fingers but did not seek medical attention. The fire department extinguished the fire. A police report was filed. The vehicle was not diagnosed. The manufacturer was contacted, and a complaint was filed. The failure mileage was 200,000.

09/10/20Component: AIR BAGSCrash reported1 injured

My 2015 mazda3 was in a collision on 09/08/2021 and my vehicle was totaled. None of my airbags deployed . Fortunately i only sustained neck and back injuries. I believe that i would have avoided these injuries if my airbags deployed properly. Has anyone else reported a problem with airbags on the 2015 mazda3? If there is a problem with the airbag then other owners need to be notified of this safety issue.

04/28/20Component: STEERINGCrash reported1 injured

DRIVING ON A TWO LANE HIGHWAY AT 65 MPH WHEN THE CAR SUDDENLY PULLED TO THE LEFT. CAR WENT OFF THE HIGHWAY RESULTING IN A TOTAL LOSS. PART OF THE STEERING RACK AND PINION MAY HAVE CRACKED. WHEN LOOKING AT THE PART IT APPEARS TO HAVE AN OLD CRACK ALONG WITH A FRESH LOOKING BREAK.

01/05/20Component: AIR BAGS,SEAT BELTSCrash reported1 injured

I WAS IN A REAR END COLLISION WITH THE MAZDA, AND WAS HIT AT 50MPH SPEED BY A DRUNK DRIVER WHILE STOPPED AT A TRAFFIC LIGHT. THE DRIVER HAD FALLEN ASLEEP AT THE WHEEL, SO DID NOT BRAKE PRIOR TO THE COLLISION. DURING THE COLLISION, THE AIR BAGS DID NOT DEPLOY, NOR DID THE SEAT BELT CATCH ME, AND I HIT THE STEERING WHEEL WITH FULL STRENGTH, CAUSING DAMAGE TO THE RIGHT SIDE OF MY FACE WHERE I HAD HIT WITH EYE DAMAGE, AND SOFT TISSUE DAMAGE ALL OVER THE FACE WITH NERVE NUMBNESS ON THE WHOLE LEFT SIDE. OF CONCERN IS WHY NONE OF THE SAFETY FEATURES OF A 2 MONTH OLD VEHICLE DID NOT DEPLOY DURING A

10/28/20Component: AIR BAGS,SEATSCrash reported1 injured

TL* THE CONTACT OWNS A 2015 MAZDA 3. WHILE ATTEMPTING TO CROSS A RAILROAD TRACK, ANOTHER VEHICLE CRASHED INTO THE REAR OF THE CONTACT'S VEHICLE AND CAUSED THE DRIVER SEAT TO MOVE FORWARD. THE AIR BAGS FAILED TO DEPLOY. THE CONTACT SUSTAINED INJURIES TO THE NECK AND BACK, BUT DID NO SEEK MEDICAL ATTENTION. A POLICE REPORT WAS FILED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 550.

12/12/20Component: VISIBILITY,UNKNOWN OR OTHER1 injured

TL* THE CONTACT OWNS A 2015 MAZDA 3. WHILE DRIVING APPROXIMATELY 70 MPH ON THE HIGHWAY, THE SUN ROOF EXPLODED WITHOUT WARNING. THE CONTACT SUSTAINED MINOR CUTS, WHICH DID NOT REQUIRE MEDICAL ATTENTION. THE VEHICLE WAS DRIVEN TO THE DEALER (SPORT MAZDA, 9786 S ORANGE BLOSSOM TRAIL, ORLANDO, FL 32837), BUT WAS NOT DIAGNOSED. THE DEALER REPAIRED THE FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND APPROVED THE REMEDY. THE FAILURE MILEAGE WAS 35,000.

06/19/20Component: POWER TRAIN,ENGINE1 injured

VEHICLE WAS INADVERTANTLY TURNED OFF WHILE IN DRIVE, WHEN PARKING THE VEHICLE NO ALARM SOUNDED. UPON EXITING THE VEHICLE, THE VEHICLE BEGAN TO ROLL BACKWARDS, FORCING ME TO JUMP BACK INTO THE CAR AND JAM ON THE BRAKE. ONE WOULD THINK THAT AS A SAFETY MEASURE, THE CAR WOULD BE REQUIRED TO BE IN PARK, BEFORE TURNING OFF THE ENGINE. WHILE ITS CONCEIVABLE THAT IN AN EMERGENCY THE DRIVER MAY WANT TO TURN OFF THE VEHICLE WHILE IN GEAR, THIS WOULD BE VERY RARE, AND COULD BE ACCOMMODATED BY PROGRAMING THE OFF SWITCH TO REQUIRE MULTIPLE PUSHES OR HOLDING IN THE BUTTON FOR AN EXTENDED PERIOD. EXIT

Showing the 8 most serious of 129 complaints filed with NHTSA.

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