Transmission Fluid, Checking and Filling
Transmission Fluid, Checking and Filling
Special tools, testers and auxiliary items required
• Oil Collecting and Extracting Device (V.A.G 1782)
• Adapter for Oil Filling (VAS 6262 A)
• If necessary, Adapter for Oil Filling (VAS 6262/6)
• Original 1 liter transmission fluid container, refer to the Electronic Parts Catalog (ETKA)
• Vehicle diagnostic tester
• Protective goggles
• Acid-resistant protective gloves
Procedure
• => [ Repair Information ] 02EA (S-Tronic) Transmission.
• => [ Clean Working Conditions ] 02EA (S-Tronic) Transmission.
• Observe notes for S-Tronic transmission 02E, Disposal regulations for oils => [ Transmission ] Transmission.
• For the correct tightening specifications, refer to => [ Transmission Oil Overview ] Description and Operation.
Danger of personal injury.
• Wear protective goggles.
• Wear acid-resistant safety gloves.
• Keep a safe distance from the fan when working near the radiator. The fan can turn on by itself.
There is an accident risk if a gear is accidentally engaged while the engine is running!
• Move the selector lever into "P" before working on the engine while it is running and pull the parking brake button to set the electro-mechanical parking brake.
There is a risk of damaging the transmission.
• If there is only a little gear oil or none at all left in the transmission after a repair or after heavy oil leakage, engine must not be started.
• Pre-fill transmission with gear oil after a repair or after heavy oil leakage.
• Use only S-Tronic transmission fluid available as a replacement part.
• Using other fluids can cause malfunctions or transmission failure.
• For the correct allocation, refer to the Electronic Parts Catalog (ETKA).
• The (VAS 6262 A) must be clean and transmission fluid must not be mixed with another fluid!
- Measure the length of the bleed pipe on the (VAS 6262 A). Shorten it if necessary => [ Measure the Length of the Bleed Pipe on the. Shorten it if Necessary. ] Description and Operation.
Test Conditions
• The transmission must not be in emergency running.
• Move the vehicle onto a 4-column shop hoist or over a work pit so it is completely level.
• Place selector lever in position "P", engage parking brake.
• Exhaust hose/-hoses of an exhaust extraction system connected.
• Engine running at idle.
• The A/C and the heater are off.
• The vehicle diagnosis tester is connected, OBD and vehicle system 02 - transmission electronics is selected in the vehicle diagnosis tester.
• At the start of the testing, the transmission oil temperature must not be higher than 30 °C (86 °F); let the transmission cool down.
• The vehicle diagnosis tester reads the transmission oil temperature.
• The transmission oil level changes with the gear oil temperature.
• A transmission oil inspection with a transmission oil temperature that is too low will lead to overfilling.
• A transmission oil inspection with a transmission oil temperature that is too hot will lead to insufficient filling.
• Overfilling or underfilling will influence the function of the transmission.
Read the Transmission Oil Temperature:
Display on the vehicle diagnosis tester:
- In selection - 1 - press the function measured values and go further by pressing the ->-button.
Display on the Vehicle Diagnosis Tester:
- Press the buttons 1 9 in the button field - 1 - for "display group 19" and then press the Q button to confirm.
Display on the Vehicle Diagnosis Tester:
- Read transmission oil temperature in display field - 1 -.
Transmission Oil Level, Checking
• All precautionary measures and test conditions must be followed.
- Remove the noise insulation - 1 -. Refer to "Underbody Trim Panels and Heat Shields".
- Press the brake pedal and hold it down.
- With the brake pressed, shift through all selector lever positions "P, R, N, D, S" at idle, retaining each position for at least 3 seconds.
- Place the (V.A.G 1782) under the transmission.
Display on the Vehicle Diagnosis Tester:
- Read transmission oil temperature in display field - 1 -.
- Remove the check plug - B - when the transmission oil temperature reaches 35 °C (95 °F).
• The inspection plug - B - is located next to the pendulum support.
First, the transmission oil will drip into the overflow tubes - arrow 2 -.
• Even if the level of oil is too low, first a small amount of transmission oil will flow out of the overflow tubes, because it fills during operation.
- Check to see if the overflow tubes are correctly screwed into the transmission, tighten if necessary.
• If the overflow tube is not correctly connected, the correct oil status cannot be determined.
- Allow the excess transmission oil to drain.
The transmission oil level is correct if a small amount of fluid drips out with a transmission oil temperature between 35 °C and 45 °C (95 °F and 113 °F) (this is normal as the fluid expands as it heats up).
In this case, no more transmission fluid must be added; the fluid level is OK.
• Every 30 seconds, a small wave of fluid exits the oil level tube, regardless of the height of the oil level (Reason: cooling oil impulse to clutch.) This wave does not mean there is excess fluid and does not indicate the fluid level.
• The transmission oil drained may not be used again. Dispose of drained oil properly.
If no oil leaks with a transmission oil temperature between 35 °C and 45 °C (95 °F and 113 °F), add more transmission oil.
Continuation for Correct Transmission Fluid Level:
- Replace seal - arrow - for inspection plug.
- Install the inspection plug - B - with a new seal. The transmission oil level test is now completed.
- End function Measured values by pressing the left arrow button.
- Press end output.
- Turn off the ignition and disconnect the diagnosis connector.
Transmission Fluid, Filling
• All precautionary measures and test conditions must be followed.
• Place selector lever in position "P", engage parking brake.
• Exhaust hose/-hoses of an exhaust extraction system connected.
• Engine running at idle.
Display on the Vehicle Diagnosis Tester:
- Read transmission oil temperature in display field - 1 -.
Add transmission fluid if no oil escapes the overflow tube - arrow 2 - with a temperature between 35 °C and 45 °C (95 °F and 113 °F) with a running engine:
- Shake before opening.
- Install transmission gear oil container on the (VAS 6262 A) ; parts number Electronic Parts Catalog (ETKA).
• Use (VAS 6262/6) if the thread on the container does not fit (VAS 6262 A).
- Screw in (VAS 6262 A) into the opening of the inspection plug - B -.
- Hold transmission fluid container as high as possible over the transmission and allow fluid to run into transmission.
Then Check Transmission Fluid Level (several times, if necessary):
- Disconnect quick-release coupling at (VAS 6262 A) and seal off hose with a clean stopper or with a finger.
First, the transmission oil will drip into the overflow tubes - arrow 2 -.
- Allow the excess transmission oil to drain.
The transmission oil level is correct if a small amount of fluid drips out with a transmission oil temperature between 35 °C and 45 °C (95 °F and 113 °F) (this is normal as the fluid expands as it heats up).
In this case, no more transmission fluid must be added; the fluid level is OK.
• Every 30 seconds, a small wave of fluid exits the oil level tube, regardless of the height of the oil level (Reason: cooling oil impulse to clutch.) This wave does not mean there is excess fluid and does not indicate the fluid level.
• The transmission oil drained may not be used again. Dispose of drained oil properly.
If no transmission fluid drops out of the inspection hole, you must continue adding fluid and checking until fluid level is OK (observe transmission fluid temperature).
Continuation for Correct Transmission Fluid Level:
- Remove the (VAS 6262 A) from the transmission.
- Replace seal - arrow - for inspection plug.
- Install the inspection plug - B - with a new seal. The transmission oil level test is now completed.
- End function Measured values by pressing the left arrow button.
- Press end output.
- Turn off the ignition and disconnect the diagnosis connector.
- Install the noise insulation. Refer to "Underbody Trim Panels and Heat Shields".