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2014 Mazda3 vehicles (Japan built) with VINs lower than JM1BM**7***206598 (produced before April 23, 2014)
2014-2015 Mazda3 vehicles (Mexico built) with VINs lower than 3MZBM******129609 (produced before July 21, 2014)
This concern may be caused by the reverse idler gear being damaged under the following driving condition.
If the wheels are spinning at a high speed in reverse on a frozen surface and the gripping force is recovered for both wheels at the same time on a dry surface, the impact load applied to the transaxle could be momentarily excessive, causing a tooth to break on the reverse idler gear.
NOTE: In the worst case, the vehicle may not move in reverse gear.
The material of the reverse idler gear has now been changed to meet this sort of driving condition.
- Confirm with the customer that the driving condition mentioned above is when the noise started.
- Confirm that the noise occurs when the clutch is engaged with the engine running.
NOTE: If the primary shaft rotates, the reverse idler gear spins so the noise occurs in any gear.
- Replace the transaxle assembly according to the instructions on MS3 online or the Workshop Manual (section 05-15).
- The part number of the Manual Transaxle Assembly, which is applicable may be changed in the future. Always check the EPC for the latest part number.
|Manual Transaxle Assembly
|MASH approval is required
|Clip for drive shaft
|Wheel Hub Nut
|Clip for tie-rod end
|Bolt for intermediate shaft