Removal and installation the windshield wiper mechanism (BMW 3 Series E36)

The windshield wiper motor is removed together with the rods. Before removing, mark the position of the brushes on the glass with adhesive tape.

Removal

Wet the windshield with water.

Turn on the windshield wiper for about 21 minutes and turn it off with the windshield wiper switch. This will reset the brushes to their original position.

Mark the initial position of the wipers on the glass with adhesive tape. To do this, stick a strip of adhesive tape directly next to the wiper. When installing, the wiper arm will be installed in the toothed support so that the wiper is located directly next to the glued strip.

Remove the windshield wiper fuse from the engine compartment fuse box. The fuse locations are shown on the box cover.

Raise the engine hood completely.



Remove the brush lever mounting cap with a screwdriver.

Loosen the fastening nut located under the cap by approximately 2 turns.

Close the engine compartment hood.

Tilt the wiper arms away from the windshield at 90°.

Using lateral movements, separate the brush arms from the support cones. Loosen heavily stuck arms with an impact puller, such as Hazet 1966-5. To protect against damage, place a rag on the edges of the engine compartment hood.



Lower the brush levers.

Raise the engine hood completely. Loosen the nuts and remove the brush arms.



Coupe model: Remove the aerodynamic trim.

Remove the air intake box.

Six-cylinder engine. Remove the heater fan and set it aside.



Unscrew the lever supports.



Unscrew support "1" in the kit, key size 10, long extension or Hazet 428-Lg10.



Disconnect the connector on the bulkhead, having first unscrewed the union nut.



To remove the windshield wiper, release the connector fastening. Caution: Do not push the connector into the vehicle interior.



Coupe model only: Remove bolts "1" - "4" from the wiper console.



Wrap the driver's side windshield wiper shaft with electrical tape to avoid scratching the fairing paint when removing it.





Cover the inside and edges of the fairing with cloth "3" to avoid damage and scratches.

Pull rods "4" with the motor to the right.



Use a screwdriver to press the drive rods "5" out of the ball head "6" on the axle.

Caution: If the working surface of the ball head is damaged, replace the axle or crank of the drive shaft.

Unscrew nut "6" of the engine crank and remove the crank.



Unscrew the "arrow" motor.

Installation

Note: Before installation, check whether the motor is in the initial position. To do this, connect the connector to the motor for a while and insert the windshield wiper fuse. Turn on the motor for a while and then turn it off with the windshield wiper switch so that the motor stops in the initial position.

Pull out the fuse.

Disconnect the connector.

Tighten the motor with 3 bolts to a tightening torque of 10 Nm on the console.



Place the cranks on the motor shaft so that the rod "8" enters through the holes in the crank and console.

Hold the cranks in this position with a rod and tighten nut "7" to a torque of 30 Nm.



Install the drive rods so that the central axes of the cranks and the drive rod on the front passenger side are in line.



Insert the windshield wiper rods with the motor through the holes in the fairing

Connect the connector to the bulkhead and secure with a right turn of the plastic union nut.



Coupe model: The mounting bolts must be tightened in a specific sequence: First tighten bolt 4, then 1, and then bolt 3.

Tighten the windshield wiper console support with a tightening torque of 10 Nm.

Secure the lever supports with nuts.

Install the heater fan.

Install the air intake box.

Set the wiper arms in accordance with the marking made during removal and tighten the nuts with a torque of 25 Nm. When re-adjusting, measure the distance from the wiper to the lower edge of the glass with a ruler. Specified values: limousine: 50 mm (on both sides); coupe: 40 mm.

Close the engine compartment hood.

Wet the windshield and check that the wipers are installed in their original position. If necessary, rearrange the wiper arms.

Attention: After test operation of the brushes at the first and second speed, tighten the brush nuts to a tightening torque of 25 Nm.

Install the brush arm mounting caps.

[You can read the original on the website: BMWMAN]