Fluid - A/T: Service and Repair
5 Spd. A/T 01V
Automatic Transmission Fluid (ATF), checking and changing
ATF level, checking
Special tools and equipment
^ VAS 5051 tester
^ VAS 5051/1 or VAS 5051/3 diagnostic cable
^ VAG 1306 drip tray
^ VAG 1924 ATF filler tool
^ Protective glasses
Test requirements:
^ Transmission must not be in emergency running mode.
^ Vehicle on level ground.
^ Selector lever in P, let engine run at idle.
^ A/C system and heating switched off.
Notes:
^ ATF level changes with ATF temperature.
^ Performing ATF level check when ATF temperature is too low causes overfilling.
^ Performing ATF level check when ATF temperature is too high causes insufficient filling.
^ Excess filling and insufficient filling both affect the function of the transmission.
^ ATF temperature is read off using the VAS5051 tester.
Procedure
- Secure container of VAG 1924 ATF filler tool as high up on vehicle as possible.
- Remove noise insulation panel (arrows).
Connect VAS 5051 tester
All functions previously performed with the VAG 1551 can also be performed using the new VAS 5051 tester in operating mode Vehicle On Board Diagnostic (OBD):
go to Operating instructions for the VAS 5051 vehicle tester.
Checking ATF temperature
- Connect VAS 5051 tester to Data Link Connector (DLC) using VAS 5051/1 diagnostic cable with ignition switched off.
- Switch on tester (arrow).
The tester now requires up to 3 minutes to finish booting.
- Switch on ignition.
- Select operating mode: Press Vehicle Self-Diagnosis selection on display.
- Press 02 - Transmission electronics on display.
- Perform dialog to confirm control module number belonging to selected system.
- Select 08 - Read Measuring Value Block on display.
- Choose Display Group 4 via the Read Measuring Value Block and Change Display Group touch screen displays.
Display on VAS 5051:
The first line of display field -1- displays ATF temperature.
Checking and correcting ATF level
Notes:
^ ATF level is checked at the ATF check plug.
^ ATF level is correct if a little bit of fluid still escapes at the ATF check plug between 35° and 45°C 1) (dependent on the fluid level when warming up)..
1)For warm countries 50°C
- Start engine.
- Raise vehicle.
- Place VAG 1306 drip tray under transmission.
WARNING: Wear protective glasses.
^ Once an ATF temperature of 35°C is reached, remove ATF check plug (arrow) and drain excess ATF if necessary.
^ If ATF flows out from the ATF filler plug hole before the ATF reaches 40°C, the ATF level (arrow) is OK
Note: ATF check plug must be closed again by 45°C (1) at the latest.
(1)For warm countries 50°C
^ Add ATF if no ATF has escaped from the ATF check plug hole by 40°C.
^ ATF specification
- Insert VAG 1924 ATF filler tool into an opening (arrow) in the protective cap, but do not knock cap upward.
- Fill with ATF using VAG 1924 ATF filler tool until ATF exits from the check hole.
- Always replace seal (arrow) for ATF check plug.
- Tighten ATF check plug to 80 Nm.
- Switch off motor.
- Select diagnostic function 06 - end output in selection.
Display on VAS 5051:
- Switch off ignition and disconnect diagnostic connector after this indication is displayed.
- Install noise insulation.
ATF, changing or topping off after repairs
Special tools and equipment
^ VAG 1306 drip tray
^ VAG1 924 ATF filler tool
^ Engine switched off.
- Secure container of VAG 1924 ATF filler tool as high up on vehicle as possible.
- Raise vehicle.
- Remove noise insulation panel (arrows).
Notes:
^ Observe disposal regulations.
^ Engine must not be started without ATF and vehicle must not be towed!
^ Place VAG1 306 drip tray under transmission.
- Remove drain plug (arrow -1- Let ATF drain.
- Tighten new drain plug (arrow -1-) to 40 Nm.
Note: Drain plug and oil seal must both be replaced.
- Remove ATF check plug (arrow -2-).
- Insert VAG 1924 ATF filler tool into an opening (arrow) in the protective cap, but do not knock cap upward.
^ ATF specification
- Fill with ATF using VAG 1924 ATF filler tool until ATF exits from the check hole.
- Shift selector lever into position P
- Start engine.
- Keeping the brake pedal depressed, shift into all selector lever positions at idle speed. Each position must remain selected for at least V.A.G 1924 10 seconds.
- Shift selector lever into position P
- Check ATF level and top off.
- Install noise insulation.
Note: Observe all notes and test requirements for Checking ATF level.