Checking ATF temperature

-- Connect scan tool:VAG1551 , press buttons 0 and 2 to select "Transmission Electronics" address word 02 and keep pressing until "Select function XX" is indicated on display. Diagnosis and Testing

-- Press buttons 0 and 8 to select "Read Measuring Value Block" function 08 and press Q button to confirm input.

Vehicles through approx. 09.92

NOTE:

The Transmission Control Module (TCM) is identified with "01D" during entry into On Board Diagnostic (OBD).

If indicated on display:

Read Measuring Value Block Q
Input display group number XXX

-- Press buttons 0 , 0 and 0 to input display group number 000 and press Q button to confirm input.

If indicated on display:

Read Measuring Value Block →
1 2 3 4 5 6 7 8 9

-- Read ATF temperature in display field 1.

NOTE:

The displayed value, minus 50, results in the ATF temperature in degrees Celsius (e.g. display 110 - 50 = 60°C).

Precise display does not occur until 40°C.

Vehicles with 55-pin control module: approx. 9/92 →

NOTE:

The Transmission Control Module (TCM) is identified with "01K" during entry into On Board Diagnostic (OBD).

If indicated on display:

Read Measuring Value Block
Input display group number XXX

-- Press buttons 0 , 0 and 4 to input display group number 004 and press Q button to confirm input.

If indicated on display:

Read Measuring Value Block 4 →
1 2 3 4

-- Read ATF temperature in display field 4.

Vehicles with 88-pin control module: mid-year 96 → (running change)

If indicated on display:

Read Measuring Value Block
Input display group number XXX

-- Press buttons 0 , 0 and 4 to input display group number 004 and press Q button to confirm input.

If indicated on display:

Read Measuring Value Block 4 →
1 2 3 4

-- Read ATF temperature in display field 1.

Checking and correcting ATF level on transmissions with ATF filler tube (vehicles → 5/94)

NOTE:

Automatic transmission can be retrofitted with the new filler system Checking and correcting ATF level on transmission without ATF filler tube (vehicles 6/94 →) .

-- To check ATF level, use dipstick with identification "02."

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NOTE:

Vehicles that require dipstick with identification "02", also have the identification "02" imprinted on the ATF filler tube (arrow).

-- Move selector lever to position "P" and let engine idle.

-- Check ATF temperature using "Read Measuring Value Block" (starting on → Checking ATF temperature ) for transmission version installed.

-- Remove cap (arrow) from ATF filler tube.

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-- When cold, check ATF level with dipstick "02."

-- With ATF cold, pull out dipstick, wipe using cloth that does not leave lint, insert into ATF filler tube up to stop and pull out again.

Fluid level must reach up to 20°C marking

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-- If necessary, top off with ATF through ATF filler tube, using clean funnel.

-- Let engine continue to idle.

-- When ATF temperature reaches approx. 70°C, pull out ATF dipstick again, wipe off, insert up to stop and pull out again.

Fluid level must be between MIN and MAX markings

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ATF level too low

-- Top off ATF through ATF filler tube, using clean funnel.

-- Shift through all selector lever positions with engine running and vehicle standing still.

-- Check ATF level again at test temperature.

ATF level too high

-- Suction out excess ATF using VAG1358A oil suction device and 1358/A1 probe.

NOTE:

Switch off engine to suction out ATF.

-- Check ATF level again at test temperature.

-- Press → button on scan tool:VAG1551 .

-- Press buttons 0 and 6 to select "End output" function 06 and press Q button to confirm input.

NOTE:

The ATF measurement must be completed at the latest when ATF temperature of 90°C is reached. If necessary, let fluid cool off again.

The MIN/MAX markings on the ATF dipstick relate to an ATF temperature of 80°C ± 10°C, i.e. for this temperature range, the ATF level must be between "MIN" and "MAX."