Audi A6 Typ 4G: Transmission Fluid
Overview - Transmission Drain and Inspection Plug for Transmission Fluid
The gear set, the manual transmission and the transfer case in the DSG transmission 0B5 share a common transmission fluid chamber, which is checked and filled by a single plug.
1 - ATF Drain Plug
- Tightening specification 45 Nm
2 - Seal
- For the ATF drain plug
- Replacing
3 - Transmission Fluid (MTF) Fill and Check Plug
- 45 Nm
- Inside the manual transmission, front final drive and transfer case
4 - ATF Fill and Check Plug
- Tightening specification 45 Nm
5 - Transmission Fluid (MTF) Drain Plug
- 45 Nm
- Inside the manual transmission, front final drive and transfer case
- Depending on the date of manufacture, Transmission Fluid Temperature Sensor 2 -G754- may also serve as the transmission fluid drain plug; tightening specification for Removing and installing. Refer to → Chapter "Transmission Fluid Temperature Sensor 2 -G754-, Removing and Installing".
Transmission Fluid; Transmission Fluid, Draining and Filling
Transmission Fluid Level, Checking and Filling: The transmission fluid level (MTF) can be checked and corrected only if the transmission is installed. Refer to → S tronic Transmission; Rep. Gr.39; Transmission Fluid; Transmission Fluid Level, Checking
Special tools and workshop equipment required
- Used Oil Collection and Extraction Unit -SMN372500-
- Protective eyewear
Procedure
Note
- General Repair Instructions. Refer to → Chapter "Repair Information".
- Rules for cleanliness when working on the DSG transmission. Refer to → Chapter "Guidelines for Clean Working Conditions".
- Gear oil at about 20 ℃ (68 ºF) (room temperature).
Transmission Installed:
- Move vehicle onto a four-pillar workshop hoist or over a work pit so that it is absolutely horizontal.
- Remove the rear noise insulation -2-. Refer to → Body Exterior; Rep. Gr.66; Noise Insulation; Noise Insulation, Removing and Installing.
Caution
Danger of Causing Damage to the Transmission.
Without any or with too little manual transmission fluid inside the transmission:
- Do not start the engine and
- Do not tow the vehicle
Transmission Removed.
- The transmission is secured to the engine/transmission holder. Refer to → Chapter "Securing on Engine and Transmission Holder".-
Transmission, Removed or Installed:
- Place the Used Oil Collection and Extraction Unit -SMN372500- under the transmission.
WARNING
Danger of eye injury.
Wear protective eyewear.
Note
- Place a cloth over the tunnel crossmember to prevent transmission fluid (MTF) from getting into the cast pockets on the top.
- In the following description, vehicles with drain plugs for transmission fluid (MTF) are differentiated from vehicles with Transmission Fluid Temperature Sensor 2 -G754- in place of drain plugs for transmission fluid (MTF).
- Place a cloth over the tunnel crossmember.
Vehicles with a Transmission Fluid (MTF) Drain Plug -arrow-:
Note
The drain plug for the transmission fluid is located behind the transmission fluid pan.
- Remove the transmission fluid (MFT) drain plug -arrow- on the bottom of the transmission housing.
- Drain the transmission fluid (MTF).
- Tighten the transmission fluid drain plug (MTF) -arrow-.
- Tightening specification. Refer to → Chapter "Overview - Transmission Drain and Inspection Plug for Transmission Fluid".
Vehicles with Transmission Fluid Temperature Sensor 2 -G754--1- Instead of a Transmission Fluid (MTF) Drain Plug:
- Transmission installed in vehicle: Turn off the ignition.
Note
The connector on the Transmission Fluid Temperature Sensor 2 -G754- can be disconnected only when the ignition is turned off. The transmission will switch to emergency mode if the ignition is on. The counter for the increased temperature will count up and a DTC memory entry will be stored in the Transmission Control Module -J217- after 10 minutes.
- Disconnect the connector -2- from Transmission Fluid Temperature Sensor 2 -G754- and tie it up.
Note
Protect the connector -2- and the contacts on Transmission Fluid Temperature Sensor 2 -G754- from transmission fluid. Clean the connectors immediately if they come in contact with transmission fluid (Manual Transmission Fluid). Transmission fluid can cause contact problems in the connector contacts.
- Remove the Transmission Fluid Temperature Sensor 2 -G754--1-.
- Drain the transmission fluid (MTF).
- Tighten the Transmission Fluid Temperature Sensor 2 -G754--1- and connect the connector -2-.
- Tightening specification. Refer to → Chapter "Overview - Transmission Drain and Inspection Plug for Transmission Fluid".
All Vehicles:
- Fill with transmission fluid (MTF). Refer to → S tronic Transmission; Rep. Gr.39; Transmission Fluid; Transmission Fluid, Draining and Filling
Transmission Fluid Temperature Sensor 2 -G754-, Removing and InstallingTransmission Fluid Temperature Sensor 2 -G754-, Removing and Installing
The 7-speed DSG transmission 0B5 (S tronic) has an additional Transmission Fluid Temperature Sensor 2 -G754- to monitor the transmission fluid temperature of the wheel set on certain engine versions.
- Component location: in place of the manual transmission fluid (MTF) drain plug
Procedure
Transmission Installed:
- Remove the rear noise insulation -2-. Refer to → Body Exterior; Rep. Gr.66; Noise Insulation; Noise Insulation, Removing and Installing.
Caution
Danger of Causing Damage to the Transmission.
Without any or with too little manual transmission fluid inside the transmission:
- do not start the engine and
- do not tow the vehicle
Transmission Removed.
- The transmission is secured to the engine/transmission holder. Refer to → Chapter "Securing on Engine and Transmission Holder".-
Transmission, Removed or Installed:
- Place the Used Oil Collection and Extraction Unit -SMN372500- under the transmission.
- Disconnect the connector -2- from Transmission Fluid Temperature Sensor 2 -G754-.
Note
Protect the connector -2- and the contacts on Transmission Fluid Temperature Sensor 2 -G754- from transmission fluid. Clean the connectors immediately if they come in contact with transmission fluid (Manual Transmission Fluid). Transmission fluid can cause contact problems in the connector contacts.
- Remove the Transmission Fluid Temperature Sensor 2 -G754--1-.
- Drain the transmission fluid (MTF).
Install in reverse order of removal. Note the following:
- Tightening Specification: Transmission Fluid Temperature Sensor 2 -G754- to transmission, 45 Nm
- Attach the wiring harness to the transmission -arrows-.
- Fill the transmission fluid (MTF). Refer to → S tronic Transmission; Rep. Gr.39; Transmission Fluid; Transmission Fluid, Draining and Filling.
- Clean the transmission and tunnel crossmember.
The 7-speed DSG transmission 0B5 (S tronic) has an additional Transmission Fluid Temperature Sensor 2 -G754- to monitor the transmission fluid temperature of the wheel set on certain engine versions.
- Component location: in place of the manual transmission fluid (MTF) drain plug
Procedure
Transmission Installed:
- Remove the rear noise insulation -2-. Refer to → Body Exterior; Rep. Gr.66; Noise Insulation; Noise Insulation, Removing and Installing.
Caution
Danger of Causing Damage to the Transmission.
Without any or with too little manual transmission fluid inside the transmission:
- do not start the engine and
- do not tow the vehicle
Transmission Removed.
- The transmission is secured to the engine/transmission holder. Refer to → Chapter "Securing on Engine and Transmission Holder".-
Transmission, Removed or Installed:
- Place the Used Oil Collection and Extraction Unit -SMN372500- under the transmission.
- Disconnect the connector -2- from Transmission Fluid Temperature Sensor 2 -G754-.
Note
Protect the connector -2- and the contacts on Transmission Fluid Temperature Sensor 2 -G754- from transmission fluid. Clean the connectors immediately if they come in contact with transmission fluid (Manual Transmission Fluid). Transmission fluid can cause contact problems in the connector contacts.
- Remove the Transmission Fluid Temperature Sensor 2 -G754--1-.
- Drain the transmission fluid (MTF).
Install in reverse order of removal. Note the following:
- Tightening Specification: Transmission Fluid Temperature Sensor 2 -G754- to transmission, 45 Nm
- Attach the wiring harness to the transmission -arrows-.
- Fill the transmission fluid (MTF). Refer to → S tronic Transmission; Rep. Gr.39; Transmission Fluid; Transmission Fluid, Draining and Filling.
- Clean the transmission and tunnel crossmember.
