LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volkswagen >> 2021 >> Jetta R-Line, Automatic Trans >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> Controls, Housing (09S) >> 37 Controls, Housing >> ATF >> ATF Level, Checking >> Checking
April 5, 2026: LEMON Manuals is launched! Read the announcement.

ATF Level, Checking: Checking

-- Connect the Vehicle Diagnostic Tester and identify the vehicle in Guided Functions  .

-- Select check ATF level  .

NOTE:

Let the transmission cool down if the fluid temperature is higher than 45 °C (113 °F).

-- Place the Used Oil Collection and Extraction Unit: SMN372500  under the transmission near the ATF check plug.

-- Remove the ATF check plug -1-.

GWWM38-10005Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- The ATF drain plug with the overflow tube -3- and seal -4- must stay in the transmission -5-.

NOTE:

Replace the seal -2-.

NOTE:

Even if the transmission fluid level is low, a small amount of transmission fluid will flow out of the overflow tube -3- since it fills during operation.

ATF flows out of the overflow tube.

Fig 1: Example Of Filler Tube As It Is Installed In Transmissions
GWWN37-0992Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

-- Let the excess fluid drain.

-- Install the plug with a new seal as soon as the fluid has drained out (it starts to drip).

-- If no oil flows out, the oil must be filled.

CAUTION:

Too little or too much fluid will impair the function of the transmission.