Transmission Fluid Level, Checking
Special tools and workshop equipment required
- Refer to TOOLS FOR TRANSMISSION FLUID CHANGE
- Pay attention to REPAIR INFORMATION .
- Pay attention to GUIDELINES FOR CLEAN WORKING CONDITIONS .
- Pay attention to the general information "Oil, Environmental and Disposal Regulations". Refer to GENERAL REPAIR INFORMATION .
Procedure
Risk of injury due to the radiator fan turning on automatically.
- Maintain distance to the fan when working near the radiator.
Test Conditions
- Transmission not in emergency operation mode.
- Move the vehicle onto a four-column workshop hoist or over a work pit so it is completely level.
- Selector lever in "P".
- The parking brake button is pulled to activate the electro-mechanical parking brake.
- Suction hoses from an exhaust extracting system are connected.
- Engine running at idle.
- The A/C system and the heater are off.
Transmission Fluid Temperature, Reading
- The transmission fluid level changes with the transmission fluid temperature: too low of a transmission fluid temperature leads to overfilling, and too high of a transmission fluid temperature leads to underfilling.
- An incorrect transmission fluid filling impairs the transmission function.
- Before beginning work the oil temperature must be approximately 30 °C (86 °F).
-- Connect the Vehicle Diagnostic Tester -arrow- and select Individual test .
- DSG Transmission 0GC
- 01 - OBD-capable systems
- 02 - Transmission electronics
- 02 - Transmission electronic functions
- 02 - Oil level, checking
Transmission Fluid Level, Checking
-- Bring the transmission fluid temperature to approximately 30 °C (86 °F).
- The transmission has an inner fluid container, which must be ran dry before checking.
-- Wait approximately 4 minutes until the internal fluid container has run dry.
-- Remove the one piece or front noise insulation. Refer to OVERVIEW - NOISE INSULATION .
Risk of injury to the eyes and hands by escaping oil.
- Wear protective eyewear.
- Wear acid-resistant safety gloves.
-- Place the : SMN372500 under the transmission.
-- Remove the check plug -arrow-.
- The collected transmission fluid runs out of the overflow pipe -arrow 2-.
- Some gear oil always leaks out when opening the inspection plug -arrow 1-, regardless of the gear oil level.
There are different versions of the overflow pipe.
Transmission damage can result from over or under filling.
- Check which overflow pipe is installed.
Transmission with beige overflow pipe:
Transmission damage due to overfilling.
- The correct oil level lays under the level of the overflow pipe.
- For this reason the unscrew the overflow pipe two turns for checking and the correct adjustment of the oil level.
-- Check the overflow pipe is seated correctly.
-- Loosen the overflow pipe two turns.
Transmission with Red Overflow Pipe:
-- Removal to check the fluid level is not necessary.
Continuation for All:
- If some transmission fluid still leaks out at a transmission fluid temperature between 35 and 45 °C (95° and 113 °F) (due to additional warming), the transmission fluid level is OK.
- Regardless of the gear oil level, a small wave of fluid comes out of the overflow tube every 30 seconds due to the multi-plate clutch cooling oil pulse. This procedure is irrelevant for checking gear oil level.
- Leaked gear oil must not be reused.
-- If necessary fill the transmission fluid. Refer to Transmission Fluid, Filling .
-- If the transmission fluid level is OK, tighten the overflow pipe and then perform a measurement. Refer to the Final Procedures below.
Final Procedures
- Replace the check plug seal -arrow-.
-- Remove the : VAS6262A from the transmission.
-- Tighten the overflow pipe.
-- Tightening the check plug -arrow-.
Tightening Specifications
- Refer to OVERVIEW - DRAIN AND CHECK PLUGS
- Overview - Noise Insulation. Refer to OVERVIEW - NOISE INSULATION .