Rear Axle Beam, Assembly Overview (FWD)

Rear axle beam, assembly overview

Note: Welding and straightening on axle beam and stub axle is not permissible.

- Always replace self-locking nuts.
1. Spring support
2. Vehicle speed sensor retainer
3. Vehicle speed sensor
^ Only on vehicles with ABS
4. Coil spring
^ Removing: first remove upper bolt from shock absorber, Refer to Shock Absorber, Service and Repair, Shock Absorber/Spring, Removing and Installing
^ After installing, the ends of the spring must lie in area marked, as illustrated.
^ Arrow A points forward
^ Arrow B points right
^ A tolerance of + 30° is permissible
^ Examine for paint damage and rectify paint damage if necessary
^ Spring allocation
^ The coil spring application for vehicles from vehicle identification No. 3B - WE 113 562 is performed via PR numbers.
^ These numbers are indicated on the vehicle data plate.
5. Wheel bearing
6. Mounting bracket
^ Check and if necessary adjust rear axle total track after installation
^ The bearing bracket contact surface is to be clean and free of wax, paint and soil
7. Hex nut
^ Replace each time after removing
8. Hex bolt M 12x1.5x90
^ 110 Nm plus an additional 90°(1/4 turn)
^ Replace each time after removing
9. Hex bolt M 12x1.5x60
^ 110 Nm plus an additional 90°(1/4 turn)
^ Replace each time after removing
10. Axle beam
^ Wheel bearing/wheel hub contact surfaces and threaded holes are to be free of paint and dirt
11. Hex bolt M 14x1.5x190
^ 120 Nm plus an additional 90°(1/4 turn)
^ Replace each time after removing
^ Only tighten nut in curb weight position!
12. Retaining strap
13. Threads in longitudinal member
^ If threads in welded nut in longitudinal member are damaged, they can be serviced using a Heli-Coil.