Rear Subframe Mount: Service and Repair
Subframe Bonded Rubber Bushing
Special tools, testers and auxiliary items required
• Engine/transmission jack (V.A.G 1383 A)
• Kukko support (KUKKO 22-2) - 4 -
• Kukko extractor (KUKKO 21/4) - 1 -
• Kukko separating tool (KUKKO 15-2) - 3 -
• Hydraulic Press (VAS 6178) with Pressure Head (T10205/13)
• Tensioning strap (T10038)
• Hollow piston cylinder (VAS 6179)
• Torque wrench (V.A.G 1332)
• Assembly tool (T10301)
• Vehicle diagnostic, test and information system (VAS 5051)
• Before replacing faulty mount, check the others as well.
• If tears and damages are visible, they must also be replaced.
Before starting work, stabilizer bars must be coupled in vehicles with separable stabilizer bars. Otherwise, there is the danger of injury caused by unintentional coupling.
- Depressurize hydraulic system for separable stabilizer bars using (VAS 5051).
- Remove wheels.
- Secure exhaust system on subframe, as depicted in illustration, using T10038.
- Remove rear part of exhaust system.
- Disconnect all electrical wires from body to subframe.
Vehicles with Separable Stabilizer Bars
- Remove rear left wheel housing liner.
- Disconnect both hydraulic lines - 1 - and electrical connection - 2 -.
Lines and wires must not be mixed up when connecting!
- Check whether color marking is present on front in driving direction. If no longer present, apply a new one.
- When loosening hydraulic lines, counterhold using open-end wrench.
Continued for All Vehicles
- Remove suspension strut from wheel bearing housing - arrow -.
- Place (V.A.G 1383 A) under subframe.
- Remove two remaining attachments bolts for subframe.
Lower subframe (second mechanic required), note the following when doing this:
• Lower only as far as necessary
• Note electrical wires and brake hoses
• Lower subframe evenly from body
- Lower subframe.
• To press out bonded rubber bushings, covers must be pulled out of inner core of mount first.
- Install tools as shown in the illustration.
1. KUKKO 15-2
2. Cover
3. KUKKO 21/4
4. KUKKO 22-2
Cover loosens abruptly, there is danger of injury caused by tools and cover falling down.
- Pull out cover using tools described.
Pull Out Bonded Rubber Bushing
- Install tools as shown in the illustration.
1. Press piece (T10301/5)
2. Support ring (T10301/4)
3. Tube (T10301/3)
4. (VAS 6178) with (T10205/13)
5. Nut (T10301/2)
6. Spindle (T10301/1)
Chamfer on outer diameter of (T10301/4) must face subframe.
- Press out bonded rubber bushing.
Secure (VAS 6178) while pressing out.
Installation Position
- Arrows - point in direction of travel.
Holes - A - longitudinal to direction of travel.
Seams - B - perpendicular to direction of travel.
Bonded Rubber Bushing, Pressing In
- Install tools as shown in the illustration.
1. (T10301/7)
2. Bonded rubber bushing
3. (T10301/6)
4. (VAS 6178) with (T10205/13)
5. (T10301/2)
6. (T10301/1)
- Press in bonded rubber bushing until shoulder lies gap-free at subframe sleeve.
- Mount subframe onto body and remove (T10300) (second mechanic required).
Further installation is in the reverse sequence to removal.
Tightening Specifications
Vehicles with Separable Stabilizer Bar
- Bleed hydraulic system for separable stabilizer bar. Refer to => [ Separable Stabilizer Bar, Bleeding ] Separable Stabilizer Bar, Bleeding.
Perform road test after repair work; If steering wheel is crooked, vehicle alignment must be performed. Refer to => [ Wheel Alignment ] Wheel Alignment.