Installing Front-Axle Cross Member

The torque sensor connector -1-  (connector at the very top) was not disconnected when the front-axle cross member was removed.

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Connectors on steering gear control unit

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Front-axle carrier

1. 4.1  Carefully move the front-axle cross member into installation position using the hydraulic lift. Make sure not to trap any lines and plug connections.

   Check that the lines are routed correctly.

2. 4.2  Tighten fastening screws -1-  > Initial tightening 90 Nm (67 ftlb.)  > Final tightening + 90° 
3. 4.3  Tighten fastening screws -3-  > Initial tightening 90 Nm (67 ftlb.)  > Final tightening + 180° 
4. 4.4  Tighten fastening nuts -2-  and counter at the bolt using a Torx wrench. > Initial tightening 90 Nm (67 ftlb.)  > Final tightening + 90 
5. 4.5  Clip in clips for coolant pipes and tighten fastening screws -4-  > Tightening torque 10 Nm (7.5 ftlb.) 
6. 4.6  Tighten fastening screws -7-  > Initial tightening 90 Nm (67 ftlb.)  > Final tightening + 90 

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Universal joint for steering column

1. 5.1 Connect universal joint to the steering gear. 
2. 5.2  Insert fastening screw -1-  into universal joint and tighten it. > Initial tightening 20 Nm (15 ftlb.)  > Final tightening + 90° 

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Lower connecting link mounting

1. 6.1  Guide ball-joint pin into the bore in the anti-roll bar.
2. 6.2  Tighten fastening nut -1-  To tighten the fastening nut. counter with a > 9546 - screwdriver  at the ball-joint pin. > Initial tightening 40 Nm (30 ftlb.)  > Final tightening + 30° 

   Information 

   Following installation, seal the threaded joint securing lower trailing arm to wheel bearing housing and tie rod to wheel bearing housing with wax as shown in -Illustration-  , Use Pfinder AP14/4 for this (see PIWIS Parts Information - PET).

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Applying wax on marked area

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Fitting lower trailing arm on wheel bearing housing

1. 7.1  Insert ball joint of the lower trailing arm into the wheel bearing housing.
2. 7.2  Tighten fastening nut -1-  > Tightening torque 85 Nm (63 ftlb.) 
3. 7.3  Remove cable straps.

Information 

Following installation, seal the threaded joint securing lower trailing arm to wheel bearing housing and tie rod to wheel bearing housing with wax as shown in -Illustration-  . Use Pfinder AP14/4 for this (see PIWIS Parts Information - PET).

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Applying wax on marked area

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Fitting tie rod on wheel bearing housing

1. 8.1  Guide in control arm spoiler (air guide for brake cooling) and clip it in at the back of the longitudinal arm.
2. 8.2  Tighten fastening nut -1-  Counter with a > 9546 - screwdriver  at the ball-joint pin while doing this. > Tightening torque 85 Nm (63 ftlb.) 

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Ball joint on level sensor

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Level sensor mounting

1. 10.1  Move bracket for level sensor and coolant pipe into installation position.
2. 10.2  Tighten hexagon-head bolt -1- Tightening torque 10 Nm (7.5 ftlb.)