635019 Removing and Installing Rear Bumper
WM 635019 Removing and installing rear bumper
Technical values
Preliminary work
Remove rear apron.
General warning notes
Safety instructions for heat protection panels
NOTICE
Heat protection panels not fitted correctly
- Risk of damage to adjacent parts
-> Make sure the heat protection panels overlap correctly.
-> Replace damaged or distorted heat protection panels.
-> Check heat protection panels for deformation, fixing of the aluminium braided cord, tears and missing or damaged fixing tabs.
-> More than 80% of the total sealing area must be sealed without gaps.
Removing rear bumper
Removing support with heat shield at the sides
Installation position of support with heat shield at the sides
1. Unscrew fastening nuts -1, 2- and remove support with heat shield at the sides -3-.
Removing support with heat shield at the sides
Removing rear bumper
Installation position of rear bumper
1. Unscrew fastening screws -1- , remove rear bumper -2- or (USA/Canada version) -2A- with mounted lower centre heat shield -3-.
Removing rear bumper
2. Unscrew fastening screw -4- with washer -5-.
3. Unscrew fastening screws -6- , remove lower centre heat shield -3- and rear support -7-.
Checking anti-chafing film
Installation position of anti-chafing film
Information
Replacing anti-chafing film:
- The bonding surface must be free from dirt, oil, and water residues.
- Ensuring there are no bubbles, bond in the anti-chafing film to the dimension X= 0 - 2 mm at the hole opening and side panel surface.
1. Check anti-chafing film -1- and replace it if necessary.
Checking anti-chafing film
2. Check fastening nuts -2- and replace if necessary.
Installing rear bumper
Installation position of rear bumper
1. Position lower centre heat shield -3- together with rear support -7- and tighten with fastening screws -6-.
Installing rear bumper
2. Screw in fastening screw -4 - with washer -5-.
3. Position rear bumper -2- or (USA/Canada version) -2A- with mounted lower centre heat shield -3-.
4. Tighten fastening screws -1-.=> Tightening torque: 85 Nm (63 ftlb.)
5. Check the functional dimensions of the rear bumper and the correct assembly of the heat shield and correct if necessary. -> 635019 Removing and installing rear bumper - section on "Adjusting" 635019 Removing and Installing Rear Bumper
Installing support with heat shield at the sides
Installation position of support with heat shield at the sides
Information
Make sure that the plastic tabs are incontact with the side panel at the top.
1. Fit support with heat shield at the sides -3-.
Installing support with heat shield at the sides
2. Tighten fastening nuts -1-. => Tightening torque: 2 Nm (1.5 ftlb.)
3. Tighten fastening nuts -2-. => Tightening torque: 9.7 Nm (7.5 ftlb.)
4. Check that heat shields are fitted correctly and make adjustments if necessary. -> 635019 Removing and installing rear bumper - section on "Adjusting" 635019 Removing and Installing Rear Bumper
Additional assembly instructions for installation of the bumper
Functional dimensions of the bumper
Information
- In order to reduce adjustment work to a minimum when assembling the rear apron, the rear bumper or bracket (impact pipes, impact absorbers) must be positioned with respect to the lower edge of the rear lid according to the dimensions shown.
- However, the precondition for precise positioning of the components is that the rear lid is optimally adjusted and correctly locked in the lock in accordance with the functional dimensions, before the rear bumper or rear retaining strip are assembled.
1. Check the functional dimensions for the rear retaining strip, and correct if necessary.
2. The adjustment dimensions must be set at the measuring points -V = 345 mm-.
3. Set adjustment dimension for upper edge of the retaining strip -2- to lower edge of the rear lid -3- ( -X = 72.5 mm- ).
Adjustment dimensions of the bumper
4. Set adjustment dimension for upper edge of the bumper -1- to upper edge of the retaining strip -2- ( -Y = 165 mm- ).
5. Set adjustment dimension for lower edge of the rear lid -3- to upper edge of the bumper -1- ( -Z = 234 mm- ).
6. The measurements can be changed by loosening and moving the brackets (impact pipes, impact absorbers) or retaining strip.
Correct assembly of heat protection panels
NOTICE
Heat protection panels not fitted correctly
- Risk of damage to adjacent parts
-> Make sure the heat protection panels overlap correctly.
-> Replace damaged or distorted heat protection panels.
-> Check heat protection panels for deformation, fixing of the aluminium braided cord, tears and missing or damaged fixing tabs.
-> More than 80% of the total sealing area must be sealed without gaps.
Correct assembly of heat protection panels
Subsequent work
Install rear apron.