Volkswagen Golf / Golf GTI / Jetta. Manual - part 520

  

  

- Turn cage until two rectangular windows - arrow - are 
aligned with joint housing. 

- Lift out cage together with hub. 

- Pivot segment of hub into rectangular cage opening.  

- Tilt hub out of cage. 

Note: 

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The 6 balls of each joint belong to one tolerance 
group. Check stub axle, hub, cage and balls for small 
indentations (pitting) and signs of seizure. Excessive 
backlash in joint will be noticed as a knock during load 
changes, in such cases the joint must be replaced. 
Polished areas and ball track marks are not a reason 
for changing joint.  

 

Installing

 

- Press half of the total amount of grease 40 grams (1.4 oz.) 
into the joint body. 

- Install cage with hub in the joint housing. 

- Press in the balls one after another from opposite sides 
whereby the original position of the hub to cage and joint 

Front drive axle, servicing

  

  

housing must be restored. 

- Install new circlip in hub. 

- Distribute remaining grease in constant velocity joint boot.  

Inner constant velocity joint, checking 

When checking the balls and ball tracks for wear and 
damage the joint should be disassembled to replace dirty 
grease. 

Removing

 

- Swivel ball hub and ball cage. 

- Press out ball joint housing in direction of arrow. 

- Press balls out of cage. 

Note: 

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The ball hub and joint are paired. Must not be 
interchanged.  

 

- Tilt ball hub out of ball cage over ball track - arrow - . 

- Check joint housing, ball hub, ball cage and balls for 

Front drive axle, servicing

  

  

indentations (pitting) and signs of seizure. 

Note: 

n

Excessive backlash in joint will be noticed as a knock 
during load changes. In such cases the joint must be 
replaced. Polished areas and ball track marks are not 
a reason for replacing joint.  

 

Installing

 

- Insert ball hub over both chamfers into ball cage. The hub 
can be installed in any position. Press balls into cage. 

- Insert hub with cage and balls at right angle to the joint. 

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When inserting make sure that the wide space  - a - on 
joint housing is aligned with narrow space - b - on hub 
after swivelling in.  

 

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Chamfer on inner diameter of ball hub (splines) must 
face larger diameter of joint housing.   

 

Front drive axle, servicing

  

  

- Install ball hub, whereby the hub must be swivelled out of 
cage - arrows - far enough to allow the balls to fit into ball 
tracks. 

- Press cage firmly - arrow - until hub swings fully in 
position. 

Check operation of constant velocity joint: 

The CV joint is correctly assembled when the ball hub can 
be moved by hand backward and forward over its entire 
axial movement range.

II - Front axle shaft with constant velocity 
joint VL 3700, servicing 

Front drive axle, servicing