Removing and Installing Rear Bumper
635019 Removing And Installing Rear Bumper
Preliminary work
Remove rear apron.
General warning notes
Safety instructions for the heat shield
ATTENTION:
The installation of deformed heat shields will cause damage.
- The installation of deformed heat shields will cause damage due to parts heating up.
- Damaged or distorted heat shields must be straightened or replaced.
- Check heat shields for deformation, bonding (detachment of the aluminium layers), tears and missing or damaged sealing strips.
- After fitting the bumper, check heat shields for leaks.
Removing rear bumper
Installation Position Of Rear Bumper:
1. Unscrew fastening screws -1-, take off rear bumper-2- or (USA/Canada version) -2A- with mounted centre heat protection shield -3- from below.
Removing Bumper:
2. Unscrew fastening screws -4, 5-, take off lower centre heat protection shield -3- and rear supports -7-. If necessary disassemble rear supports -7- by unscrewing the fastening screws -6-. Take off connecting angle -8- and speed nuts -9-.
Removing heat shield at the sides
Installation Position Of Rear Bumper:
1. Unscrew fastening nuts -1, 2- and take off heat protection shield-3-.
Removing Heat Protection Shield:
Checking anti-chafing film
Installation Position Of Rear Bumper:
NOTE: Make sure that the anti-chafing film completely seals off the cutout of the sheetmetal nut.
1. Check anti-chafing film -1- and replace if necessary.
Checking Anti-Chafing Film:
2. Check fastening nut -2-, replace if necessary.
Installing rear bumper
Installing heat shield at the sides
Installation Position Of Rear Bumper:
1. Insert heat protection shield -3-.
Installing Rear Section Of Heat Protection Shield:
2. Screw on fastening nuts -1- and tighten to the specified tightening torque Tightening torque 1 ftlb.
3. Screw on fastening nuts -2- and tighten to the specified tightening torque Tightening torque 7 ftlb.
Installing rear bumper
Installation Position Of Rear Bumper:
1. Position lower centre heat protection shield -3- together with rear supports -7- and screw in with fastening screws-4, 5-.
Installing Bumper:
2. Position connecting angle-8- and screw in with fastening screws -6-.
3. Position rear bumper -2- or (USA/Canada version) -2A- with mounted lower centre heat protection shield -3-.
4. Screw in fastening screws -1- and tighten to the required tightening torque Tightening torque 63 ftlb.
5. Check the functional dimensions of the rear bumper and the assembly of the heat shield and correct if necessary.
6. Check heat protection shield, correct if necessary.
Additional assembly instructions for installation of the bumper
Functional dimensions of the bumper
NOTE:
- In order to reduce adjustment work to a minimum when assembling the rear spoiler, the rear bumper or support must be positioned with 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 for the measuring points - V = 312 mm- are to be adjusted.
3. Set a adjustment dimension for the upper edge of retaining strip -2- to rear lid, -3- lower edge -X = 72,2 mm-.
Adjustment Dimensions Of The Bumper:
4. Set a adjustment dimension for the upper edge of bumper -1- to retaining strip, -2- upper edge -Y = 164,7 mm-.
5. Set a adjustment dimension for the lower edge of rear lid -3- to bumper, -1- upper edge -Z = 233,9 mm-.
6. The measurements can be changed by loosening or moving the impact pipes or impact absorbers (USA version), or support. Correct assembly of the heat protection shields
ATTENTION:
Damage will result if heat shields are fitted incorrectly.
- Observe the following points during assembly.
- Make sure the heat shields overlap correctly (arrows).
- There should not be any continuous gaps along the entire length of the heat shields.
- A gap of up to 2 mm wide and 30 mm long is permissible locally.
- At least more than 80 % of the total sealing area must be sealed off without gaps.
- The following minimum gap dimensions must be observed.
Correct Assembly Of The Heat Protection Shields:
Subsequent work
Install rear apron.