Subframe Mount
Subframe Mount
Special tools, testers and auxiliary items required
• Engine/Transmission Jack (V.A.G 1383 A ) with Universal Transmission Support (V.A.G 1359/2 )
• Torque Wrench (V.A.G 1331)
• Torque Wrench (V.A.G 1332)
• Foot Pump With High Pressure Hose (V.A.G 1389 A/1 )
• Wheel Bearing Tool (V.A.G 1459 B)
• Hollow Piston Cylinder HKZ-15 (E-0-204-T)
• Tie bolt (E-0-217+218)
• Special nut (E-8-214)
• Press piece (E-5)
• Press piece (T40033/1)
• Support ring (T40033/2)
• Tube (T40033/3)
• Mount (T40033/4)
• Press piece (T40033/5)
• Mount (T40033/6)
• Spindle (T40034)
• Nut (T40034/1)
• Nut (T40034/2)
If available in shop, Hand Pump (V.A.G 1389/1 ) can also be modified for use as a foot pump.
To do so, use Conversion Kit (V.A.G 1389/4 ).
• The same special tools and workshop equipment can be used to replace subframe mounting on vehicles with front and all wheel drive.
• The subframe does not have the usual bonded rubber mountings, but rather has hydraulic mountings.
• The mountings can only be removed and installed with the subframe lowered.
• Identify mounting location to subframe before removing.
Remove front or rear hydraulic mountings
- Remove wheels.
- Remove left and right coil spring. Refer to => [ Coil Spring ] Service and Repair.
- Only remove left/right rear underbody trim if front hydraulic mounting will be replaced.
1 Left underbody trim
- If present, remove diagonal braces - 1 - and - 2 -. Refer to => [ Front or Rear Diagonal Braces ] Rear Suspension.
Only with rear hydraulic mounting
- Remove stabilizer bar. Refer to => [ Stabilizer Bar ] Stabilizer Bar.
Procedure for front and rear hydraulic mountings
- Position Engine/Transmission Jack (V.A.G 1383 A) with Universal Transmission Support (V.A.G 1359/2 ) and a corresponding wooden block at subframe or final drive (Fig. for vehicles with front wheel drive).
- Tighten band around subframe or final drive.
• If a front hydraulic mounting is to be replaced, only loosen front subframe bolts.
• If a rear hydraulic mounting is to be replaced, only loosen rear subframe bolts.
• If another bolt for subframe at front or rear is loosened, vehicle alignment must be performed after installation.
- Loosen front or rear bolts for subframe.
- Carefully lower subframe approximately 5 cm.
- Only remove bolt for subframe where hydro mount must be replaced.
- Mark location of hydraulic mounting - 1 - to subframe - 2 -, e.g. with a felt-tip pen (Fig. shows subframe on front wheel drive vehicle).
Arrow A: Driving direction
Arrows B and C: Marking
- Install special tools as shown in illustration.
1 Nut (T40034/1) or (T40034/2)
2 Press Piece (T40033/1)
3 Support Ring (T40033/2)
4 Tube (T40033/3)
5 Mount (T40033/4)
6 Hollow Piston Cylinder ( HKZ-15)
7 Press Piece (E-5)
8 Special Nut (E-8-214)
9 Spindle (T40034)
10 - Subframe
- Pretension special tools.
- Remove hydraulic mounting by operating pump.
• When removing hydraulic mounting with special tool Wheel Bearing Tool (V.A.G 1459 B), you must cut back.
Pull in front or rear hydraulic mounting
Front and hydraulic mountings are different. Make sure that correct allocation when installing.
Hydraulic mounting must be installed in the correct direction, note marking on subframe.
- Insert special tool with hydraulic mounting in subframe as shown.
Make sure that correct location when inserting Mount (T40033/6).
1 Nut (T40034/1) or ( T40034/2)
2 Mount (T40033/6)
3 Hydraulic support
4 Press Piece (T40033/5)
5 Hollow Piston Cylinder ( HKZ-15)
6 Press Piece (E-5)
7 Special Nut (E-8-214)
8 Spindle (T40034)
9 - Subframe
- Pre-tension special tool with hydraulic mounting.
- Completely coat hydraulic mounting with installation lubricant G 294 421 A1 thin with water at a ratio of 1:100.
- Make sure that ends of rubber beads on hydraulic mounting - 1 - align with markings - arrows B and C - on subframe - 2 -.
- Arrow A - is in direction of travel
- Pull in hydraulic pump to stop by operating pump.
• When pulling in hydraulic mounting with Wheel Bearing Tool (V.A.G 1459 B) you must cut back.
• Make sure that hydraulic mounting does not tilt while it is being pulled in, otherwise outer ring could be damaged!
- Raise subframe using Engine/Transmission Jack ( V.A.G 1383 A).
- Install new subframe bolts and washers and tighten
Only rear hydraulic mounting
- Install stabilizer bar. Refer to => [ Stabilizer Bar ] Stabilizer Bar.
Procedure for front and rear hydraulic mountings
- If present, install diagonal braces - 1 - and - 2 -. Refer to => [ Front or Rear Diagonal Braces ] Rear Suspension.
- Install right and left underbody trim.
- Install left and right coil spring. Refer to => [ Coil Spring ] Service and Repair.
- Mount wheel and tighten.
- Perform vehicle alignment if more than 2 hydraulic mounting bolts were loosened. Refer to => [ Wheel Alignment ] Wheel Alignment.
Alignment must take place on a VW/Audi recommended alignment stand.