Changing Oil

Oil, changing

Note! Oil grade:Only automatic transmission fluid, Volvo P/N 1161540-8 (1 liter containers) may be used.

Warning! Avoid skin contact with the transmission fluid.

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

Draining

Conditions for changing

The oil should be replaced only in the two following instances:
Where diagnostic trouble codes (DTCs) TCM 0042 and TCM 0046 are stored, in which case the diagnostic function activates the warning lamp in the following circumstances.
The transmission control module (TCM) receives data about the operating temperature of the transmission fluid while the car is being driven. TCM 0042 is stored after an accumulated amount of time.
Diagnostic trouble code (DTC) TCM 0046 is stored if the transmission fluid temperature exceeds 150° C for more than two minutes.
In cars used in continuous taxi service or used for towing a trailer or caravan for most of its mileage, the oil must be replaced at a service interval of 75 000 km ± 5000 km. This is to conform to the regular service program.

Draining the transmission





Warning! Avoid skin contact with the transmission fluid.

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

- Remove the drain plug. Drain the oil from the transmission
- Install the oil drain plug. Use a new sealing ring
- Torque: 40 Nm.

Draining the oil cooler




Place a container beneath the transmission to catch the oil.
Remove the hose clamp and disconnect the return hose from the pipe running to the control system cover.
Install a plastic plug in the pipe.
Install a transparent plastic hose on the oil return line.
Ensure that the hose flows into the container.

Refilling

Refilling
- Apply the parking brake. Move the gear selector lever to position P
- Fill with approximately 2 liters of oil through the dip stick pipe
- 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 transparent hose from the return hose.

Install:
- the return hose on the pipe running to the control system cover
- a new hose clamp.

Filling, continued
- Add approximately 2 liters of oil
- Set parking brake
- Start the engine and let it idle. Move the gear selector through all positions, stopping in each position for 4-5 seconds.

Checking the oil level
- See Checking and adjusting the oil, AW55-50/51SN Checking Oil Level
- Switch off the engine
- The oil capacity of the transmission is 7.4 ±0.1 liters (MAX, MIN)
Note! After replacing the transmission, the adaptation and the "Transmission oil change" counter must be reset.

- See

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