Main Pressure, Checking

4 Speed Automatic 01M

Main pressure, checking

Conditions for performing check

- Diagnostic Trouble Code (DTC) memory checked
When the DTC memory is checked, the following display should appear:
"No DTC recognized!"
- ATF level OK

Special tools and equipment

- V.A.G 1702 Pressure tester

- Remove bolt -arrow- for main pressure port. Always replace bolt.
- Connect pressure tester V.A.G 1702 and tighten thumb screw.
- Start engine.
- Bleed pressure tester V.A.G 1702. To do this, loosen thumb screw and tighten when bleeding is complete.
If V.A.G1551 is used:

- Remove Data Link Connector (DLC) cover -1-.
- With ignition switched off, connect V.A.G 1551 Scan Tool with diagnosis cable V.A.G 1551/3A.

Indicated on display
1) appears alternately
- Start engine.
- Press key 1 for "Rapid data transfer" mode.

Indicated on display
- Press keys O and 2 to select address word "Transmission electronics".

Indicated on display
- Confirm entry with key Q.

Indicated on display
- Press keys 0 and 8 to select function "Read measured value block".

Indicated on display
- Confirm entry with key Q.

Indicated on display
- Press keys 0, 0, and 5 to select "Display group number 005".
- Confirm entry with key Q.

Indicated on display
The first display zone shows the ATF temperature.
- Allow ATF temperature to rise to 60°C.

Main pressure specifications at idle

If there are deviations from the prescribed values, the following could be the cause:

- Switch engine off.

Solenoid valve connector
- Press fuse together and pull off connector.
- Start engine.

Main pressure specifications at 2000 rpm

If possible, the main pressure test should be performed on a rolling road.

If there are deviations from the prescribed values:
- After test is complete, disconnect pressure tester V.A.G 1702.
- Install new bolt for main pressure port and tighten to 15 Nm.
- Fit solenoid valve connector.
- Once connector has been fitted, check and erase DTC memory.
- If necessary, install sound insulation.