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 

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  .

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• 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 .

-- Place the : SMN372500  under the transmission.

• The engine is idling and the selector lever is in "P".

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-- Remove the check plug -arrow-.

• The collected transmission fluid runs out of the overflow pipe -arrow 2-.
  Fig 1: Identifying Overflow Pipe And Plug

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• Some gear oil always leaks out when opening the inspection plug -arrow 1-, regardless of the gear oil level.

Transmission with beige overflow pipe: 

-- 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 

Fig 2: ATF Inspection Plug

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• Replace the check plug seal -arrow-.

-- Remove the : VAS6262A  from the transmission.

-- Tighten the overflow pipe.

-- Tightening the check plug -arrow-.

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Tightening Specifications 

• Refer to OVERVIEW - DRAIN AND CHECK PLUGS 
• Overview - Noise Insulation. Refer to OVERVIEW - NOISE INSULATION .