Mazda CX-7 Transmission Repair Manual

Mazda CX-7 Automatic Transaxle and Transfer Workshop Manual

This manual explains the service points for the above-indicated automotive system. This manual covers all models with the above-indicated automotive system, not any one specific model. In order to do these procedures safely, quickly, and correctly, you must first read this manual and any other relevant service materials carefully. All the contents of this manual, including drawings and specifications, are the latest available at the time of printing. As modifications affecting repair or maintenance occur, relevant information supplementary to this volume will be made available at Mazda dealers.

TRANSFER STRUCTURAL VIEW

TRANSFER CROSS-SECTIONAL VIEW

TRANSFER POWER FLOW

TRANSFER OIL COOLER CONSTRUCTION

AUTOMATIC TRANSAXLE OUTLINE

The AW6A (X) -EL automatic transaxle is a compact, lightweight, next-generation electronically controlled FF 6-speed automatic transaxle that employs a Ravigneaux-type planetary gear. It employs a high-precision clutch hydraulic control system for smooth, highly responsive gear shift feel.

AUTOMATIC TRANSAXLE CROSS-SECTIONAL VIEW (AW6A-EL)

AUTOMATIC TRANSAXLE CROSS-SECTIONAL VIEW (AW6AX-EL)

POWERFLOW STRUCTURE
Description of Components

The number of pinion gears differs depending on the engine displacement and vehicle.

• Mazda6
  • Front: 3 pinions
  • Rear: 3 pinions
• Mazda CX-7
  • Front: 5 pinions
  • Rear: 3 pinions

POWERFLOW OPERATION

List of operating components

Clutch / Brake	Operation
C1 clutch	Connects front planetary carrier to rear planetary rear sun gear
C2 clutch	Connects intermediate shaft to rear planetary carrier
C3 clutch	Connects front planetary carrier to rear planetary middle sun gear
B1 brake	Locks rear planetary middle sun gear
B2 brake	Locks rear planetary carrier
One-way clutch	Locks counterclockwise rotation of rear planetary carrier

1GR (D range) Power transmission pathway

Operating components: C1 clutch, One-way clutch
Operating components: C1 clutch, One-way clutch (counterclockwise rotation is locked), B2 brake (ON when engine brake is operating)

Planetary gear unit	Input, Locked, Output
Front	Input: Ring gear Locked: Sun gear Output: Carrier
Rear	Input: Rear sun gear Locked: Carrier Output: Ring gear

1. Input shaft (rotates clockwise) [same revolutions as the torque converter’s turbine runner]
2. Front planetary ring gear (rotates clockwise) [same revolutions as the input shaft]
3. Front planetary pinion gear (rotates clockwise on its axis, orbits clockwise) [because the front planetary sun gear is locked by the oil pump, it is pressed against the front planetary ring gear and orbits the sun gear while rotating on its axis (because the front planetary ring gear has internal gears, the rotational direction does not change)]
4. Front planetary carrier (rotates clockwise) [reduction: same revolution as the front planetary pinion gear orbit revolution]
5. C1 clutch (rotates clockwise) [connects the front planetary carrier and the rear planetary rear sun gear]
6. Rear planetary rear sun gear (rotates clockwise) [same revolution as the front planetary carrier]
7. Rear planetary short pinion gear (rotates counterclockwise on its axis) [the rear planetary carrier tries to rotate counterclockwise, but the counterclockwise rotation is locked by oneway clutch.]
8. Rear planetary long pinion gear (rotates clockwise on its axis) [the rear planetary middle sun gear rotates counterclockwise (idling)]
9. Rear planetary ring gear (rotates clockwise) [the rear planetary ring gear is rotated by the rear planetary long pinion gear (because the rear planetary ring gear has internal gears, the rotational direction does not change)]
10. Counter drive gear (rotates clockwise) [because the rear planetary ring gear is installed on the counter drive gear, the rotational direction and the revolution are the same as the rear planetary ring gear]
11. Counter gear (rotates counterclockwise)
12. Differential ring gear (rotates clockwise)

1GR (M range)

Operating components: C1 clutch, B2 brake
When the engine brake is operating, driving force is transmitted from the tires. Because the rear planetary carrier, which is locked in its counterclockwise rotation by the one-way clutch, tries to rotate clockwise, B2 brake is turned ON and the rear planetary carrier is locked, and kinematic energy is transmitted from the tires to the engine.