503819 Removing and Installing Lock Carrier
WM 503819 Removing and installing lock carrier
Technical values
Preliminary work
1. Remove front apron, -> 631519 Removing and installing front apron - section on "Removing" .
2. Remove cover for front underbody, -> 519219 Removing and installing cover for front underbody - section on "Removing" 519219 Removing and installing Cover For Front Underbody.
3. Remove front part of front wheel housing liner, -> 505619 Removing and installing front wheel housing liner - section on "Removing" Removal and Replacement.
4. Remove wire harness at the centre air guide, -> 971619 Removing and installing front-end wire harness - section on "Removing" 971619 Removing and installing wire harness for front-end.
5. Remove temperature sensor at the centre air guide.
6. Remove air box for throttle housing, -> 243519 Removing and installing air box for throttle housing (Y-shaped pipe ahead of throttle valve) - section on "Removing" 243519 Removing and installing air box for throttle housing (Y-shaped pipe ahead of throttle valve)
7. Disengage operating cable at the lid lock, -> 551019 Removing and installing release for front lid - section on "Removing" 551019 Removing and Installing Release For Front Lid
Removing lock carrier
Information
- To avoid damage to the wing, the radiator module must be secured at the same height before the bumper is removed.
- This can be achieved either by securing it to the subframe using tie-wraps or by supporting it on a workshop jack or transmission jack.
1. Remove radiator module -7- from the lock carrier -1-.
Removing radiator module
1.1. Unscrew fastening screws -6-.
1.2. Disconnect radiator module -7- from the lock carrier -1- and press it back onto the supporting frame.
1.3. Secure the radiator module -7- with tie-wraps -9- on the supporting frame -8-.
Securing radiator module
2. Remove front air guide at the side. (Turbo only) -> 243619 Removing and installing front air guide at the side - section on "Removing" 243619 Removing and installing front air guide at the side
3. Release charge air cooler -3-. (Turbo only)
Releasing charge air cooler
3.1. Unscrew fastening screws -5-.
4. Unscrew fastening screws at the top -4- of the lock carrier -1-.
Detaching upper lock carrier
5. Remove bumper -1- , -> 631019 Removing and installing front bumper - section on "Removing" Service and Repair.
6. Remove lock carrier -1-.
Installing lock carrier
NOTICE
Different tightening torque for screwing self-tapping screws into a new or existing, old thread.
- Incorrectly screwed joints
- Risk of damage to screw thread
-> Observe different tightening torques.
-> When screwing screws into an existing, old thread, first screw the screws in a few turns by hand, then screw them in fully using a tool.
1. Fit lock carrier
2. Install front bumper.
2.1. Fit the bumper.
2.2. Fit horn and holder -13-.
Securing bumper
2.3. Screw in fastening screws -11, 12- and tighten slightly.
2.4. Adjust the height -X- => Adjustment value: 100 mm
2.5. Screw in fastening screws -11- and tighten to the specified torque => Tightening torque: 50 Nm (37 ftlb.)+5 Nm (+3.5 ftlb.)-7.5 Nm (-5.5 ftlb.).
Securing holder for horn
2.6. Tighten fastening screws -11- to the specified torque => Tightening torque: 50 Nm (37 ftlb.)+5 Nm (+3.5 ftlb.)-7.5 Nm (-5.5 ftlb.).
Securing bumper
2.7. Tighten fastening screws -12- to the specified tightening torque => Tightening torque: 13 Nm (9.5 ftlb.)+1 Nm (+0.5 ftlb.)-2 Nm (-1.5 ftlb.) => Tightening torque: 9.7 Nm (7.5 ftlb.)+1 Nm (+0.5 ftlb.)-1.5 Nm (-1 ftlb.).
3. Screw in fastening screws at the top -4- and tighten to the specified torque => Tightening torque: 5.5 Nm (4 ftlb.)+/-0.5 Nm (+/-0.5 ftlb.).
Securing lock carrier at the top
4. Secure charge air cooler (Turbo only).
Securing charge air cooler
4.1. Position the charge air cooler.
4.2. Tighten fastening screws -5- to the specified tightening torque=> Tightening torque: 6.5 Nm (4.5 ftlb.)+/-0.5 Nm (+/-0.5 ftlb.).
5. Secure radiator module -7- to the lock carrier -1-.
Securing radiator module
5.1. Remove tie-wrap at the fixing point.
5.2. Position radiator module.
5.3. Screw in fastening screws -6- and tighten to the specified tightening torque => Tightening torque: 13 Nm (9.5 ftlb.)+1 Nm (+0.5 ftlb.)-2 Nm (-1.5 ftlb.) => Tightening torque: 9.7 Nm (7.5 ftlb.)+1 Nm (+0.5 ftlb.)-1.5 Nm (-1 ftlb.).
Engage operating cable at the lid lock, -> 551019 Removing and installing release for front lid - section on "Installing" 551019 Removing and Installing Release For Front Lid.
6. Perform a function test.
6.1. Engage hook with a screwdriver.
6.2. Release the lid lock by actuating the inner opener.
Subsequent work
1. Install front air guide at the side, (Turbo only) -> 243619 Removing and installing front air guide at the side - section on "Installing" 243619 Removing and installing front air guide at the side.
2. Install wire harness at the centre air guide, -> 971619 Removing and installing front-end wire harness - section on "Installing" 971619 Removing and installing wire harness for front-end.
3. Install temperature sensor at the centre air guide.
4. Install air box for throttle housing, -> 243519 Removing and installing air box for throttle housing (Y-shaped pipe ahead of throttle valve) - section on "Installing" 243519 Removing and installing air box for throttle housing (Y-shaped pipe ahead of throttle valve).
5. Install front part of front wheel housing liner -> 505619 Removing and installing front wheel housing liner - section on "Installing" Removal and Replacement.
6. Install cover for front underbody, -> 519219 Removing and installing cover for front underbody - section on "Installing" 519219 Removing and installing Cover For Front Underbody.
7. Install front apron, -> 631519 Removing and installing front apron - section on "Installing" .
8. Adjust control unit for distance measuring sensor, -> 278515 Adjusting control unit for distance measuring sensor 278515 Adjusting control unit for distance measuring sensor.