Checking main pressure — AUDI
Checking main pressure on Audi: factory workshop procedure. Full factory text, tools and checks.
Workshop procedure for AUDI — the factory write-up, straight from real workshop data.
📋 Procedure
ℹ️ Torque figures below come verbatim from workshop data — always cross-check against your vehicle's factory manual before final tightening.
01N
Special tools and workshop equipment required
Pressure tester V.A.G 1702
VAS 5051 with VAS 5051/1 and VAS 5051/2
Drip tray
Main pressure should be tested on a rolling road whenever possible.
Requirement for test:
Vehicle diagnostic, testing and information system VAS 5051 connected, vehicle self-diagnosis mode activated and vehicle system "02 - gearbox electronics" selected.
=> Automatic gearbox 01N, Self-diagnosis; Repair group 01; Performing self-diagnosis
Automatic gearbox 01N, Self-diagnosis
Performing self-diagnosis
No faults stored in fault memory
=> Automatic gearbox 01N, Self-diagnosis; Repair group 01; Performing self-diagnosis
Automatic gearbox 01N, Self-diagnosis
Performing self-diagnosis
Remove bolt -arrow- for main pressure drilling. Always renew bolt.
Connect pressure tester V.A.G 1702 and tighten thumb screw.
Start engine and run at idling speed.
Bleed pressure tester V.A.G 1702. To do this, loosen thumb screw and tighten when bleeding is complete.
Display on VAS 5051:
Select diagnosis function "08 - Read data block" from the menu -1-.
Display on VAS 5051:
1 -
Enter display group
Using the keypad -2-, enter "005" to select Display group 005 and confirm entry with Q button.
Display on VAS 5051:
Check ATF temperature in display zone 1.
Allow ATF temperature to rise to 60 °C.
Press the ◂ button to exit from the function "08 - Read data block".
Main pressure specifications at idle
Selector lever positions
D · R
Idle · Idle
Pressure in bar · 3.4 ... 3.8 · 5 ... 6
If specification not attained or exceeded:
Possible causes · Remedy
Idling speed too high · Adjust engine
ATF pump defective · Check ATF pump and renew if necessary
Sticking valves in valve body · Renew valve body
Switch off ignition.
Disconnect connector -arrow- for solenoid valves.
Start the engine.
Main pressure specifications at 2000 rpm
Selector lever positions and test conditions
D · R
Engine speed approx. 2000 rpm · Engine speed approx. 2000 rpm
Pressure in bar · 12.4 ... 13.2 · 23.0 ... 24.0
If specification not attained or exceeded:
Possible causes · Remedy
ATF pump defective · Check ATF pump and renew if necessary
Sticking valves in valve body · Renew valve body
After test:
Disconnect pressure tester V.A.G 1702.
Install new bolt for main pressure drilling and tighten to 12 Nm.
Plug in electrical connector.
Interrogate fault memory:
=> Automatic gearbox 01N, Self-diagnosis; Repair group 01; Performing self-diagnosis
Automatic gearbox 01N, Self-diagnosis
Performing self-diagnosis
Note:
Faults will have been recorded in the fault memory because the connector has been unplugged. Interrogate and, if necessary, erase fault memory after completing the test.
Select diagnosis function "06 - End output".
Switch off ignition and unplug the diagnostic connector.
TorqFix answers live for your specific car — tell it the engine code and it serves the matching sequence, torque figures and wiring for that exact variant.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.