Assembling Backrest Frame
- Danger of injury
- Loss of torque
→ Always use new screws or nuts following removal.
→ Comply with instructions for repairs.
→ Observe specified tightening torques.
→ Carry out a visual inspection of parts used.
Information
Micro-self-locking or self-tapping screws must not be modified, greased or loosened and then screwed in again.
Information
Driver's seat
Line routing for backrest
Position of tie-wraps
Position of airbag line
Pulling out lines
- Check that the edge clip on the wire harness is clipped into the relevant tab on the backrest frame -1- and clip it in if necessary.
- When routing the line for the thorax airbag, always make sure that there is sufficient clearance between the line and the seat/backrest kinematics. Make sure that the line CANNOT get caught in the moving kinematics.
- Check the horizontal position of the clip -2- and adjust it if necessary.
- Press tie-wraps on the driver's airbag wiring harness into the take-up holes provided for them as shown -1- and check that they are fitted securely.
- When routing the line from the driver's seat to the airbag, always check that the line is positioned exactly in the clearance area -1- between the 2nd and 3rd cross strut after fitting the backrest (particularly with Sport Plus).
- Always fit the backrest shell first before pulling the airbag connector -1- and ground connection -2- out of the backrest trim.
Information
Passenger seat:
Line routing in the sheetmetal well
Horizontal position of tie-wrap
Checking that edge clip is fitted securely
Horizontal position of tie-wraps
Routing of airbag line
- Both tie-wraps N 906.666.01 -1- are only used on seats with heating. On seats without heating, the line remains unsecured in the sheetmetal well.
- Press tie-wrap on the passenger's airbag wiring harness into the take-up hole provided for it as shown -1- .
- Edge clip -inset- is clipped into the relevant tab on the backrest frame.
- When routing the line for the thorax airbag, always make sure that there is sufficient clearance between the line and the seat/backrest kinematics. Make sure that the line CANNOT get caught in the moving kinematics.
- Press tie-wraps on the passenger's airbag wiring harness horizontally -1- into the take-up holes provided for them and check that they are fitted securely.
- When routing the line from the passenger seat to the airbag, always check that the line is positioned exactly in the clearance area -arrow- between the 2nd and 3rd cross strut after fitting the backrest (particularly with Sport Plus). Otherwise, there is a danger of crushing the cable.
- Always fit the backrest shell first before pulling the airbag connector -1- and ground connection -2- out of the backrest trim
Information
Driver and passenger seat subframe
Overview of seat subframe
Position of adhesive felt at the left
Position of adhesive felt at the right
- -1- Fit commercially available adhesive felt at the left side of the driver's seat or passenger seat to protect the electric lines that can be routed over the edge area.
- -2- Fit commercially available adhesive felt at the right side of the driver's seat or passenger seat to protect the electric lines that can be routed over the edge area.
- Before assembling the driver's seat or passenger seat, check the following points on the line routing.
Driver's seat:
Passenger seat:
- Installation is performed in reverse order. Pay particular attention to the following:
Tightening torque for screw securing backrest frame to seat frame: > Tightening torque 34 N.m (25 ft lb.) +/- 4 N.m (3 ft lb.)