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Dismantling and assembling gearbox > < Torque converter

Leon Mk1

Checking ATF level
Checking ATF level
Test preconditions
l  Gearbox is not in emergency running mode, ATF temperature is not above approx. 30 °C
l  Vehicle standing on level ground
l  Selector lever in position “P”.
   
–  Secure reservoir of ATF filling unit -V.A.G 1924- to vehicle.
Connecting vehicle diagnosis, testing and information system -VAS 5051-
All functions which were previously performed with the -V.A.G 1551- can also be performed with the new tester -VAS 5051- in the mode “vehicle self-diagnosis” → Operating instructions for vehicle diagnosis, testing and information system VAS 5051.
Additional information required
t  → No.202
  N37-0845
–  With ignition switched off, connect tester -VAS 5051- to diagnostic connection with diagnostic cable -VAS 5051/1- or -VAS 5051/3-.
–  Switch on tester.
Tester now needs up to 3 minutes to start up.
–  Switch on ignition.
–  Select operating mode: Press button for “vehicle self-diagnosis” on display.
–  Select vehicle system: Select “02 - Gearbox electronics” on display.
–  Select diagnostic function: All diagnostic functions are available at this point.
–  Select “08 - Read measured value block” on display.
–  Press button for “basic setting” on display and continue to display zone for ATF temperature.
The following detailed test sequences are described for the fault reader -V.A.G 1551-.
–  Connect fault reader -V.A.G 1551-, enter address word “02 Gearbox electronics” and advance until “Select function XX” is indicated on display → Automatic gearbox 099 - 4-speed; Rep. Gr.01.
  N01-0506
Indicated on display:
–  Press buttons 0 and 8. (“Read measured value block” is selected with 08.)
  
Rapid data transfer                 HELP
Select function XX
Indicated on display:
–  Confirm entry with Q key.
  
Rapid data transfer                    Q
08 - Read measured value block
Indicated on display:
–  Press buttons 0, 0, 5. (005 selects “display group number 005”.)
–  Confirm entry with Q key.
  
Read measured value block                    
Input display group number XXX
Indicated on display:
The first display zone shows the ATF temperature.
The ATF temperature should not be more than approx. 30 °C at the start of the test.
–  Start engine.
–  Raise vehicle.
–  Place drip tray under gearbox.
–  Bring ATF to test temperature.
Test temperature: 35 °C to 45 °C
  
Read measured value block    5        ->
30 °C      0011011       0      900 rpm
–  Remove ATF inspection plug from oil pan.
  N37-0279
The ATF present in the overflow pipe -arrow 2- runs out.
If ATF drips out of bore:
ATF does not need topping up.
–  Fit new oil seal to plug -arrow 1- and tighten to 15 Nm. This completes the ATF check.
Plug -arrow 3- and cap -arrow 4- remain closed.
If the ATF present in the overflow pipe now runs out of the bore:
–  Top up ATF → Chapter.
  N37-0414

Dismantling and assembling gearbox > < Torque converter