Audi A4: Mechatronic
Overview - Mechatronic
1 - Transmission Fluid Pan
- Removing and installing. Refer to → Chapter "Transmission Fluid Pan, Removing and Installing".
- Aluminum or plastic
2 - Bolt
- Tightening specification and sequence. Refer to → Fig. "Transmission Fluid Pan - Tightening Specification and Sequence".
3 - Seal
- Replace after removing
4 - Bolt
- Tightening specification. Refer to → Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL; Rep. Gr.34; Mechatronic; Overview - Mechatronic.
5 - Bracket
6 - Hydraulic Pressure Sensor 2 -G546-
- Removing and installing. Refer to → Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL; Rep. Gr.34; Mechatronic; Overview - Mechatronic.
7 - O-Rings
- Replace after removing
8 - Contact Element
9 - Bolt
- Tightening specification. Refer to → Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL; Rep. Gr.34; Mechatronic; Overview - Mechatronic.
10 - O-Ring
- Replace after removing
11 - Bleed Pipe
12 - Dust Ring
13 - Seals
- Replace after removing
14 - Mechatronic
- Removing and installing. Refer to → Chapter "Mechatronic, Removing and Installing".
15 - Mechatronic Bolt. Refer to → Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL; Rep. Gr.34; Mechatronic; Overview - Mechatronic.
16 - Wiring Guide
17 - Seal
- Replace after removing
18 - Transmission Control Module -J217-
- Removing and installing. Refer to → Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL; Rep. Gr.34; Mechatronic; Overview - Mechatronic.
19 - Hydraulic Pressure Sensor 1 -G545-
- Removing and installing. Refer to → Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CK, 0CL; Rep. Gr.34; Mechatronic; Overview - Mechatronic.
20 - O-Rings
- Replace after removing
21 - ATF Pipe
- Replace after removing
22 - Seals
- Replace after removing
Transmission Fluid Pan - Tightening Specification and Sequence
- Tighten the bolts in steps according to the specified sequence:
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Transmission Fluid Pan, Removing and Installing
Special tools and workshop equipment required
- Vehicle Diagnostic Tester
- Engine Bung Set -VAS6122-
- Used Oil Collection and Extraction Unit -SMN372500-
Removing
Caution
Risk of damaging the transmission.
Do not run engine or tow vehicle when the transmission fluid pan is removed or without transmission fluid.
WARNING
The system is under pressure.
Deactivate the ATF pump and drain the hydraulic pressure reservoir before removing the transmission fluid pan!
- Using the Vehicle Diagnostic Tester in the Transmission Control Module -J217- empty the ATF pressure reservoir and disable the Transmission Fluid Auxiliary Hydraulic Pump -V552-. Refer to → Chapter "ATF Pump, Deactivating and Draining the Hydraulic Pump Reservoir".
- Remove the ATF cooler. Refer to → Chapter "ATF Cooler, Removing and Installing".
- Remove the subframe crossbrace. Refer to → Suspension, Wheels, Steering; Rep. Gr.40; Subframe; Subframe Crossbrace, Removing and Installing.
- Remove the bolts in the sequence -25 to 1- and remove the transmission fluid pan.
Installing
Install in the reverse order of removal while noting the following:
Note
Replace the seal and ATF pipe after removal.
- Install the ATF cooler. Refer to → Chapter "ATF Cooler, Removing and Installing".
Tightening Specifications
- Refer to → Fig. "Transmission Fluid Pan - Tightening Specification and Sequence"
- Refer to → Suspension, Wheels Steering; Rep. Gr.40; Subframe; Overview - Subframe.
Mechatronic, Removing and Installing
Special tools and workshop equipment required
- Vehicle Diagnostic Tester
Removing
WARNING
The system is under pressure.
Deactivate the ATF pump and drain the hydraulic pressure reservoir before removing the transmission fluid pan!
- Using the Vehicle Diagnostic Tester in the Transmission Control Module -J217- empty the ATF pressure reservoir and disable the Transmission Fluid Auxiliary Hydraulic Pump -V552-. Refer to → Chapter "ATF Pump, Deactivating and Draining the Hydraulic Pump Reservoir".
- Remove the subframe crossbrace. Refer to → Suspension, Wheels, Steering; Rep. Gr.40; Subframe; Subframe Crossbrace, Removing and Installing.
- Remove the transmission fluid pan. → Chapter "Transmission Fluid Pan, Removing and Installing".
Refer to → Servicing - 7-Speed Dual Clutch Transmission 0CJ, 0CL, 0CK; Rep. Gr.34; Mechatronic; Mechatronic, Removing and Installing for all further work on the Mechatronic.
Installing
Install in reverse order of removal.
Tightening Specifications
- Refer to → Chapter "Overview - Mechatronic"
- Refer to → Suspension, Wheels Steering; Rep. Gr.40; Subframe; Overview - Subframe.
READ NEXT:
Special Tools
Special tools and workshop equipment required
Used Oil Collection and Extraction Unit -SMN372500-
Tensioning Strap -T10038-
Seal Installer - Selector Shaft -T10135-
Engine/Gearbox Jack -
Transmission Control
Component Location Overview - Transmission Control
1 - DSG Transmission Mechatronic -J743-
Removing and installing. Refer to
→ Chapter "Mechatronic, Removing and Installing".
2&n
SEE MORE:
Refrigerant Circuit, General Precautions
General Information
Ensure absolute cleanliness when working.
Wear safety goggles and gloves when working with refrigerant
and nitrogen.
Workshop extraction systems are to be switched on.
Use the service station to discharge the refrigerant
circuit, only then open screw connections and replac
Finding Leaks via Vacuum Test using A/C Service Station or Nitrogen
Pressure Testing
Vehicles with a High Voltage System (Hybrid Vehicles)
Read and follow all of the supplemental warnings for all
work performed on vehicles with the high voltage system. Refer
to
→ Chapter "Warnings when Working on Vehicles with High Voltage
System" and
→ Electrical Equipment;
