Transaxle Description

The automatic transmission used in the Focus is a new development.
It is a fully automatic, electronically controlled four speed transmission designed for front wheel drive vehicles.
Its abbreviated designation 4F27E means:
- 4 - 4-four-speed transmission
- F - front wheel drive
- 27 - maximum input torque after torque converter: 270 ft. lbs. (365 Nm)
- E - fully electronic control
Mazda in Japan has developed the transmission specifically for use in the Focus.
It is produced by Ford in Sterling Heights, Michigan (USA).





The individual ratios are achieved through two planetary gear sets connected one behind the other.

The individual components of the planetary gear sets are driven or locked by means of three multiplate clutches, a multiplate brake, a brake band and a roller one-way clutch.

The torque is transmitted to the final drive assembly through an intermediate gear stage.

The transmission fluid is designed to be used for the life of the transmission under normal driving conditions and need not be changed.

The electrical and hydraulic functions are carried out by a 104-pin EEC V powertrain control module.

The manual selector lever gives the driver a choice of "P", "R", "N", "1", "2" and "D".

In drive range "D" it is also possible to operate an O/D switch on the manual selector lever to prevent the transmission shifting into 4th gear or to shift down to 3rd gear.

To minimize fuel consumption, the torque converter lock-up clutch is closed by the PCM in 3rd and 4th gears depending on the throttle position and vehicle speed.

The transmission has Electronic Synchronous Shift Control (ESSC) which guarantees extremely smooth gear shifting over the entire life of the transmission.

A hydraulic emergency operating program maintains limited operation in the event of failure-of important electrical components.

The transmission can be tested using FDS2000 or WDS through the Data Link Connector (DLC), in the passenger compartment.
- 1st gear: 2.816: 1
- 2nd gear: 1.498: 1
- 3rd gear: 1.000: 1
- 4th gear: 0.726: 1
- Reverse gear: 2.649: 1