Transmission Housing, Servicing : Notes

Fig 1: Identifying Special Tools - Transmission Housing, Servicing

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Special tools and equipment 

• VW 407 Press tool
• VW 416 B Tube
• VW 771 Multi-purpose tool
• VW 801 Support plate
• 12-551 Centering mandrel
• 3129 Installation tool

Special tools and equipment 

Fig 2: 3176 Centering mandrel

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• 3176 Centering mandrel

Fig 3: Kukko 21/2 Internal puller, Internal puller Kukko 21/4, Kukko 22/2 Counter support

Courtesy of VOLKSWAGEN UNITED STATES, INC.

• 1 - Kukko 21/2 Internal puller
• 1 - Internal puller Kukko 21/4
• 4 - Kukko 22/2 Counter support

Fig 4: Exploded View Of Transmission Housing Components

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Transmission housing 

• If replaced: adjust input shaft, output shafts and differential. Refer to Adjustment overview 

2 - Oil seal 

• Always replace

3 - Oil drain plug, 30 Nm 

• Always replace

4 - Stop sleeves 

• Driving out. See Figure
• Driving in. See Figure

5 - Oil filler plug, 30 Nm 

• Always replace

6 - Locking pin 

• Is pressed into gate of selector shaft when adjusting outer selector mechanism. Refer to Gear selector mechanism, adjusting 
• Driving out. See Figure
• Driving in. See Figure

7 - Bushing 

• For selector rods
• Replace each time after removing
• Pulling out. See Figure
• Installing. See Figure

8 - Needle bearing 

• Replace each time after removing
• Pulling out. See Figure
• Pressing in. See Figure

9 - Shim 

• For input shaft
• Adjustment overview. Refer to Adjustment overview 

10 - Outer race/tapered roller bearing 

• For input shaft
• Removing and installing. Refer to Input shaft, disassembling and assembling 
• If replaced: Adjust input shaft. Refer to Input shaft, adjusting 

11 - Outer race/tapered roller bearing 

• For 5th, 6th and reverse gear output shaft
• Removing and installing. Refer to Output shaft for 5th, 6th and reverse gear, disassembling and assembling 
• If replaced: adjust 5th, 6th and reverse gear output shaft. Refer to Output shaft for 5th, 6th and reverse gear, adjusting  

12 - Shim 

• For 5th, 6th and reverse gear output shaft
• Adjustment overview. Refer to Adjustment overview 

13 - Outer race/tapered roller bearing 

• For 1st-4th gear output shaft
• Removing and installing. Refer to Figure
• If replaced: Adjust 1st-4th gear output shaft. Refer to Output shaft for 1st-4th gears, adjusting 

14 - Shim 

• For 1st-4th gear output shaft
• Adjustment overview. Refer to Adjustment overview 

15 - Outer race/tapered roller bearing 

• For differential
• Removing and installing. Refer to Differential, disassembling and assembling 
• If replaced: adjust differential. Refer to Differential, adjusting 

16 - Shim 

• For differential
• Adjustment overview. Refer to Adjustment overview 

17 - Oil seal 

• Always replace. Refer to Oil seal for left flanged shaft, replacing