Transmission Control Units With 3-Digit Codes

Replacing Transmission Fluid

Changing Oil

Note! Use only automatic transmission fluid which fulfills both Dexron IIE and Ford Mercon standards. Avoid skin contact with automatic transmission fluid.

Conditions
The oil should be replaced only in the following instances:
- When the on-board diagnostic system (OBD system) has recoreded that the oil temperature is too high, diagnostic troulbe code (DTC) AT-325 (DTC 2-3-5)
- If the oil smells burnt and is discolored and no diagnostic trouble code (DTC) has been stored. For example due to hard and intensive use.
- On cars used in continuous taxi service and/or used to tow trailers extensively, should have the oil changes at 75000 km service intervals.

Warning! The oil may be very hot if the car has just been driven. Avoid skin contact.

Draining





- Remove the splash guard under engine (certain versions)
- Remove the oil plug. Drain the transmission oil.

Installing the oil pan plug
Install the oil pan plug with a new gasket.
Torque 40 Nm.
Install splash guard (certain variants).

Preparing to flush the transmission




Remove
- the battery
- the battery shelf.
Remove the return hose on the control system cover.
Install a plastic plug in the connection on the cover.
Install a transparent plastic hose on the oil return hose connection.
Place a container beneath the hose to catch the oil.
Temporarily reinstall the battery shelf and the battery.

Refilling
Apply the parking brake. Move the gear selector lever to position P. Add approximately 2 liters of oil.
Start the engine and let it idle.
Turn the engine off when air bubbles start to become visible in the hose.
Add approximately 2 liters of oil.
Start the engine again and let it idle.
Turn the engine off when air bubbles start to become visible in the hose.
Remove the battery and the battery shelf. Remove the hose from the connection.
Install the return hose on transmission cover. Install the battery shelf and the battery.

Further filling
Fill with approximately 2 liters of oil.
Apply the parking brake.
Start the engine and let it idle.
Move the gear selector through all the gear positions. Wait 4-5 seconds in each gear.
Move the gear selector to position P with the engine running
Wait 2 minutes. Check the oil level.
Top up if necessary. The capacity of the transmission is 7.6 ±0.25 liters. (MAX, MIN).

Erasing diagnostic trouble codes (DTCs)
Check and erase any diagnostic trouble codes (DTCs)

After replacing the transmission, the adaptation and the "Transmission oil change" counter must be reset.