A/T - Fluid Leaks From Servo Cover
Retailer Technical Journal 21096AW TF80SC B1 Servo Cover,
Automatic transmission fluid leak
Date 06-10-2009
Reference: VIDA
Note! If using a printed copy of this Retailer Technical Journal, first check for the latest online version.
AFFECTED VEHICLES:
DESCRIPTION:
If fault tracing for an automatic transmission fluid leak leads the tech to find that the B1 servo cover is leaking, the servo cover is now available separately from the transmission.
Note! This only applies to vehicles with the 6-speed automatic AW TF8OSC transmission.
TOOLS:
MATERIALS:
SERVICE:
If the automatic transmission fluid is leaking from the B1 servo cover (shown in photos), replace the cover and 0-rings according to the following instructions.
1.
Note! Some variation in the illustrations may occur, but the essential information is always correct.
Preparations
2. Drain the transmission of fluid according to VIDA:
INFORMATION
REPAIR
Removal, replacement and installation Power transmission
Transmission Transmission automatic (hydromechanical) Transmission oil
3.
Caution! Make sure that the area around the component is clean and free of foreign material.
Use: Cleaning agent, 1161721.
Caution! Observe cleanliness when handling the components.
Removal
4.
Warning! Make sure that the vehicle does not lift off the hoist when using the transmission jack.
Use: Jack 9985972 and counterhold 9995656. Push the piston up and remove the locking ring.
Note! Use absorbent pads suitable for drying any fluid that runs out.
Lower the jack carefully and remove the cover, piston and spring.
Caution! It the piston is damaged, the transmission must be replaced.
5. The image shows the cover for the XC70, engine B6324S.
Replace the 0-ring on the piston. Install 0-rings on the cover.
6. The image shows covers for other models and engines with TF-80 transmissions. Replace the 0-ring on the piston. Install 0-rings on the cover.
7. Check the locking ring groove for burrs that can damage the 0-rings. It burrs are present, remove them using tine emery cloth.
Clean the cylinder thoroughly.
Installation
8. Reinstall the new cover in reverse order.
9. Fill with transmission fluid according to VIDA:
Cleaning Inspection and Adjustment Power transmission Transmission Automatic, transmission (hydromechanical) Transmission oil level - checking Adapting the transmission
10. Connect VIDA to the vehicle.
See VIDA:
DIAGNOSTICS
VEHICLE COMMUNICATION
TCM
Advanced
Control module adaptation
"Resetting of adaption" does not need to be carried out unless the shift quality is not okay after the repair.
Start the engine and allow it to idle.
Activate Adaption mode. Ignore the instruction to warm the transmission up first. When "Adaption Mode" had been activated, the message "Operation done" appears in the grey window in VIDA.
Note! Do not turn off the engine.
Disconnect the VIDA station and carry out a road test according to the description below.
The message "Transmission oil temperature too high" or "Adaption Mode" will not appear and the general warning lamp will not illuminate until the oil reaches a temperature of 66°C (150.8°F).
Checking the transmission function
11. Start the road test immediately without turning off the engine. Accelerate smoothly, even when the transmission is cold.
Shift from 1st and up though all gears at different engine speeds until the quality of the gear shift is satisfactory. This may be difficult in the beginning, because air will have entered the system during the repair.
When the transmission temperature reaches 66°C (150.8°F), the warning triangle in the combined instrument panel will light each time an "approved" shift is made.
Check the oil level and that there are no oil leaks.
WARRANTY CLAIM INFORMATION