Audi A4: Transmission Fluid Circuit
Overview - Transmission Fluid Circuit
1 - Plug/Plugs
- For the ATF check and fill hole -item 1- → Item
2 - Plug
- 35 Nm
- Replace after removing
- For the transmission fluid inspection and fill hole
3 - Transmission Fluid Pump (MTF Pump)
- With seal welded on
- Must be removed for draining the transmission fluid (MTF).
- Replace the transmission fluid pump if the seal is damaged.
- Removing and installing. Refer to → Chapter "Transmission Fluid Pump, Removing and Installing".
4 - Bolt
- 3 Nm +90º
- Replace after removing
5 - Plug/Plugs
- For the ATF -item 5-
Transmission Fluid Pump, Removing and Installing
Special tools and workshop equipment required
- Used Oil Collection and Extraction Unit -SMN372500-
- Protective Eyewear
Removing
Note
- General repair instructions. Refer to → Chapter "Repair Information".
- Guidelines for clean working conditions. Refer to → Chapter "Guidelines for Clean Working Conditions".
- Move vehicle onto a four-pillar workshop hoist or over a work pit so that it is absolutely horizontal for the refilling.
- Remove the rear noise insulation. Refer to → Body Exterior; Rep. Gr.66; Noise Insulation; Noise Insulation, Removing and Installing.
- Place the Used Oil Collection and Extraction Unit -SMN372500- underneath.
WARNING
Danger of eye injury.
Wear protective eyewear.
Caution
Risk of electrical corrosion.
- There must not be any transmission fluid (MTF) in the connector area.
- Disconnect the connector -2- only after the transmission fluid drains.
Note
When removing the oil pump, the transmission drains abruptly.
- Remove the bolts -arrows- and then remove the oil pump -1-.
- After draining the transmission fluid, disconnect the connector -2-.
Caution
Risk of damaging the transmission.
Without any or with too little transmission fluid inside the transmission:
- Do not start the engine.
- Do not tow the vehicle.
Installing
Install in the reverse order of removal while noting the following:
Note
- Worn out manual transmission fluid (MTF) can stain the transmission fluid filter housing.
- Clean debris off sealing surfaces.
- Fill the transmission fluid (MTF). Refer to → Chapter "Transmission Fluid, Draining and Filling".
Tightening Specifications
- Refer to → Chapter "Overview - Transmission Fluid Circuit"
- Refer to → Body Exterior; Rep. Gr.66; Noise Insulation; Overview - Noise Insulation.
READ NEXT:
ATF Circuit
Overview - ATF Circuit
Caution
Risk of damaging the transmission.
Remove all the plugs on the ATF lines and on the
transmission that were installed during removal.
The ATF cooling functio
Transmission Fluid
Transmission Fluid Level, Checking
Special tools and workshop equipment required
Torx Socket - T60 -T40087-
Protective Eyewear
Procedure
Note
General repair instructions. Refer to
→&n
ATF
ATF Level, Checking
Special tools and workshop equipment required
Vehicle Diagnostic Tester
Used Oil Collection and Extraction Unit -SMN372500-
Pressurized Gearbox Oil Filler Kit -VAS6617- with
P
SEE MORE:
Flushing Circuit Block Diagrams
Note
The arrows in the following illustrations show the direction
of refrigerant flow during flushing (refrigerant flows in
opposite direction of flow when Air Conditioning (A/C) system is
in operation while flushing, therefore the high pressure side of
the A/C service system is connec
Inner CV Joint, Checking
It is necessary to disassemble the joint whenever replacing
the grease or if the ball surfaces show wear or damage.
Disassembling
Note
Ball hub and joint are paired and should be identified
before removal. Do not interchange ball race allocation.
- Tilt the ball hub and ball cage.
-&n
