Window Regulator, Removing and Installing

Window Regulator, Removing And Installing

When servicing window regulator, following components can be replaced:
- Coupling plate with clamping brackets
- Cable reel with Bowden cable
- Window regulator motor (for electrical window regulators)
- Window crank (for mechanical window regulators)

Removing
- Removing carrier assembly with window regulator.

Vehicles with electrical window regulators
- Remove motor for window regulator.

Vehicles with mechanical window regulators
- Remove crank mechanism and transfer element for cable reel.

Continued for all vehicles

NOTE:
- Repair using repair kit is only possible with window regulator that are equipped with eccentric relay pulley -1-.
- For window regulators with relay pulleys without eccentric -2-, complete carrier assembly must be replaced.
- Color of relay pulleys is not important.
- Protect loudspeakers against damage during entire repair.






- Place carrier assembly on a level surface, support if necessary.

- Checking relay pulleys, guide rails and seal for damage. Replace carrier assembly if damaged.






- Locate start and end of diagonal Bowden cable -4-. Do not damage diagonal Bowden cable -4-, this is not replaced.
- Bowden cables -2- and -6-, which come from cable reel -5-, must be cut through in guide rails -3- and -7-.
- Slide coupling plate and clamping brackets -1- on guide rails into topmost position. It is only possible to remove coupling plate with clamping brackets here.






- Fold coupling plate and clamping brackets -1- in direction of -arrow-. When doing this, note position of Bowden cables -2- and -3- in coupling plate.
- Remove cut-off ends of Bowden cables from coupling plates.
- Diagonal Bowden cable must not be changed in its installation position.

Removing crank mechanism (vehicles with mechanical window regulators)






- Remove bolts -1-.
- Remove crank mechanism -2-.
- Remove seals -2-.






- Remove transfer element for cable reel -1-.

Continued for all vehicles






- Press together retaining clamps of threaded sleeves -arrows-.
- Remove cable reel from carrier assembly.






- Clean guide rails -1- and -2- as well as insertion opening -arrow- of grease and dirt.

Installing






- Insert threaded sleeves -arrows- of new cable reel through openings in carrier assembly.
- Cut and remove both cable ties on cable reel.






- Press cable reel -1- into carrier assembly using light pressure.

NOTE: Do not remove securing plate -2- from cable reel.

- Route Bowden cable with long sheathing -3- under diagonal Bowden cable -4-.
- Guide sheathing of Bowden cables into cable reel -1- -arrows-.
- Guide Bowden cable with short sheathing into Bowden cable mount of front guide rail.
Do not thread Bowden cable onto relay pulley yet.
- Guide Bowden cable with long sheathing into Bowden cable mount of rear guide rail.
Do not insert Bowden cable onto relay pulley yet.

NOTE: Ends of Bowden cable must be located in vicinity of upper side of window regulator because clamping brackets can only be installed on guide rails in topmost position. If necessary, pull Bowden cable slightly out of cable reel.

Installation of coupling plate with clamping brackets
- Connect coupling plate with clamping brackets sideways onto guide rail. Clamping brackets must face toward upper side of window regulator.






- Insert crimped Bowden cable ends into coupling plate -3-.
- First insert Bowden cable -1- coming from below into upper, deep groove.
- Next, insert Bowden cable -2- coming from above into lower, shallow groove.

NOTE: Bowden cables must not cross.






- Fold up coupling plate with clamping brackets -1- in direction of -arrow- toward guide rail -2-.
- Install second coupling plate with clamping brackets -1- as described.

Thread in Bowden cable onto relay pulley






- Check 4 ends of Bowden cable sheathings for correct seating in mounts - arrow -.
- Route Bowden cable -1- onto eccentric washer of relay pulleys -2- as depicted in illustration.
- All eccentric washers must be rotate to lowest height, otherwise it is very difficult to install Bowden cable onto last relay pulley.






- Remove securing plate -2- from cable reel -1-.
- Pull both coupling plates with clamping brackets up to lower end of guide rails. When doing this, Bowden cable slide automatically into relay pulley grooves.
- Check position of Bowden cable.
Bowden cable must be located correctly in groove at all 4 relay pulleys.
- Slide coupling plates with clamping brackets back and forth several times on guide rails to check them for proper function.

Vehicles with electrical window regulators
- Place foam shims contained in repair set between window regulator motor and carrier assembly.
- Install motor for window regulator.
- Tighten bolts to 3.5 Nm.

Vehicles with mechanical window regulators






- Connect transfer element for cable reel -1-.
- Insert new seals -2-.






- Connect crank mechanism -2-. If necessary, align transfer element for cable reel and crank mechanism. To do so, rotate transfer element as far until transfer element and crank mechanism have correct position to each other.
- Tighten bolts to -1- to 3.5 Nm.

Continued for all vehicles
- Installing carrier assembly with window regulator.
- Slide door window into clamping brackets without excessive force and align to rear window guide.
- Tighten bolts for clamping brackets to 10 Nm.