Installation kit for electronic cruise control BMW 7 Series (E32)

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BMW Installation Instructions

Installation kit for electronic cruise control BMW 7 Series (E32)

Tools and materials required:

Flat-bladed screwdriver
Phillips screwdriver
Socket wrench, 8 mm, 10 mm
Torque wrench
Socket insert ( 1/2 inch), 17 mm
Ratchet (1/2 inch)
Extension (1/2 inch)
Internal hex socket insert (1/2 inch), 4 mm
Alien key, 4 mm
Hammer
Flat chisel
Ring wrenches, 10 – 11 mm, 12 – 13 mm, 16 – 17 mm
Offset ring wrenches, 12 – 13 mm, 16 – 17 mm
Cable lamp
Universal knife
Rubber moulding adhesive

Contents

Chapter

  1. Disconnecting battery
  2. Removing steering wheel and trim
  3. Installing additional wiring harness
  4. Installing control motor
  5. Installing clutch switch
  6. Installing cruise control switch
  7. Adjusting wire cable
  8. Note on operation

1. Disconnecting the battery

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Installation kit for electronic cruise control BMW 7 Series (E32)

To reach the battery, remove cover (1) from the rear seat base on the right.

Note:

Rotate retaining pin (2) through 90° in the direction of the arrow with a 4 mm Allen key.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Note:

Print out the fault memories first if necessary.

(When the battery is disconnected, the fault memories are automatically erased.)

Disconnect the negative cable (arrow) from the earthing point.

2. Removing steering wheel and trim

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Installation kit for electronic cruise control BMW 7 Series (E32)

On models without airbag:

Lever out the BMW emblem in the direction of the arrow with a small screwdriver.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Release steering wheel lock.

Unscrew nut (1) and remove together with washer (2). Mark the position of the steering wheel in relation to the steering spindle.

Pull off the steering wheel.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Take out the screws (arrows) and remove lower section of steering wheel trim (1).

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Installation kit for electronic cruise control BMW 7 Series (E32)

On models with airbag:

On models equipped with the airbag, the steering must not be removed.

Take out the screws (arrows) and remove lower section of steering wheel trim (1).

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Installation kit for electronic cruise control BMW 7 Series (E32)

On all models:

Take out the screws (arrows). Remove side trim (1) in the direction of the arrow.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Open the left-hand glove box and disconnect the retain­ ing strap (arrow).

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Installation kit for electronic cruise control BMW 7 Series (E32)

Pull of f cable plug (1) and remove trim (2).

3. Installing additional wiring harness

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Installation kit for electronic cruise control BMW 7 Series (E32)

Models with special equipment are already fitted with all the required connecting cables.

On models without special equipment:

Pull of f rubber moulding (1) in the direction of the arrow.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Remove the retaining nuts (arrows) on the left and right of equalizer tank (1) and carefully set down the equalizer tank.

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Take out the plastic screws (arrows) and remove cover (1).

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Take out the four Phillips screws in the electronics box (arrows) and remove the lid.

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Cut through the cable straps (arrows) a.nd remove.

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Remove water valve cover (1) and unscrew the three re­ taining nuts (arrows).

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Open the retaining clip and place cable plug (1) to one side.

Take out both Allen screws (arrows).

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Lift up the water valve together with all its connections and carefully place it to one side.

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Cut out perforated section (1) in the sound-insulating material.

Separate the retaining points on the pre-stamped metal panel section with a hammer and flat chisel.

Remove the metal section.

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Insert the additional wiring harness in the cutout as shown by the drawing.

Run the additional wiring harness along the car’s main wiring to the electronics box.

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Cut through the rubber seal (arrow) on the electronics box, then feed the additional wiring harness into the box.

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Install control unit (1) in the electronics box. Place retaining screws (2) in position and tighten.

Push cable plug (3) from the additional wiring harness on to the control unit and press in the locking mechanism (arrow).

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Push cable plug (1) on to the tied-back connection in the electronics box.

Apply suitable rubber moulding adhesive to the rubber

seal and additional wiring harness to ensure a watertight connection.

Place the lid of the electronics box in position and secu­ re with screws.

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Remove plastic cover retaining nut (1) on the left spring strut mounting.

Insert the additional wiring harness and install the plas­ tic cover again.

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Raise cover (1) on the left wiper arm.

Take out retaining screw (2) and remove the wiper arm.

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Raise cover (1) on the right wiper arm.

Unscrew retaining nut (2) and remove the wiper arm.

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Lever the spreader rivets (arrows) out of left trim grid (1). Remove the trim grid.

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Remove the fuse box lid (arrow).

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Cut the end off the rubber grommet (arrow).

Feed the additional wiring harness through the rubber grommet into the car’s interior.

Apply a suitable rubber moulding adhesive to the rubber grommet and additional wiring harness to ensure a watertight connection.

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Install the car’s main wiring and the additional wiring harness in sheet-metal cover (1) and secure with cable straps.

Install the trim grid. Install the wiper arms.

When installing:

Make sure the left wiper arm is pressed on fully, other­

wise the contact pressure adjustment will not function correctly.

Close the fuse box. Install the equalizer tank.

Place the rubber moulding in position. Install the cover.

Install the water valve and press on the cap.

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Install cable plug (1) from the additional wiring harness in the car’s interior and press on to connection (2) as shown by the drawing.

4. Installing control motor

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On all models:

Push holder (1) on to control motor (2).

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Place the retaining nuts (arrows) in position and tighten.

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A ttach wire cable (1) to tension strap (2) on the control motor.

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Push wire cable (1) in the direction of the arrow as far as possible.

When installing:

The spring keeper must lock.

The tension strap is located in the wire cable.

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On models with special equipment:

Release the tied-back plug connection on the car’s main wiring in the area indicated (arrow).

Remove retaining nuts (1).

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Run wire cable (1) underneath holder (2).

Install the control motor and tighten retaining screws (3). Push cable plug (4) on to the control motor and lock in the direction of the arrow.

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Press rubber nipple (1) into cutout (2).

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Feed wire cable (1) through hole (2) in holder (3). Press rubber keeper (4) into the hole.

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Attach retaining clip (1) to wire cable (2).

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Install the wire cable with retaining clip (1) in cutout (2) of throttle butterf ly holder (3).

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Press the concertina-type rubber sleeve on the end of the wire cable (arrow).

5. Installing clutch switch

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Only on models with manual gearbox:

Pull off brake light switch cover (1) in the direction of the arrow.

Remove brake light switch (2).

Note:

To remove the brake light switch, press the retaining tabs (arrow) together and pull out the switch.

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Remove the brake light test switch.

Unscrew retaining nut (1) and pull out the brake light test” switch.

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Lever off clip (1) from brake pedal (2) and pull out pin (3).

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Take out eccentric screw (1) from the clutch master cylin­ der.

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Detach torsion spring (1). Remove hex nut (2).

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Carefully remove pivot screw (1).

Place holder (2) in position and insert pivot screw. Screw on hex nut loosely.

When installing:

Renew self-locking hex nut.

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Lock over- centre spring (1) into the retaining tab (arrow) on the pedal mechanism.

Insert the eccentric screw . Screw on retaining nut (2) loosely.

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Attach holder (1) to the pedal mechanism (arrow) with re­ taining screw (2).

Tighten the pivot screw to a torque of 27 Nm. Connect the torsion spring.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Adjust the position of the throttle pedal with the eccen­ tric screw (arrow) until measurement A = 275 mm.

Tighten the eccentric screw. Install the brake pedal pin.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Insert the brake light test switch. Check the position of the brake light test switch and adjust if necessary.

Note:

Measurement A = 6 -0.5 mm

1 = Brake light test switch

2 = Brake light switch

Insert the brake light switch.

Install the cap.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Detach plug connection (1) above clutch master cylinder (2) from the wiring harness. Pull off plug (3).

Note:

Cable colours: blue-brown/blue-red

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Installation kit for electronic cruise control BMW 7 Series (E32)

Press cable plug (1) on to clutch switch (2).

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Installation kit for electronic cruise control BMW 7 Series (E32)

Insert clutch switch (1) in the cutout in holder (2).

6. Installing cruise control switch

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Installation kit for electronic cruise control BMW 7 Series (E32)

On all models:

Push switch (1) in the guide (arrow) on the steering col­ umn.

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Installation kit for electronic cruise control BMW 7 Series (E32)

Run the wiring harness along the steering column to plug connec tion (1).

Push on cable plug (2).

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Installation kit for electronic cruise control BMW 7 Series (E32)

Cut out the pre-marked area (arrow) of the lower steering column trim section.

Install the lower steering column trim section. Install other trim sections.

Install the glove box.

Note:

Install the parts by following the removal procedure in re­ verse order.

On models without airbag:

Install the steering wheel

When installing:

Renew the self-locking nut: Tightening torque = 90 Nm.

On all models:

Reconnect the battery.

7. Adjusting wire cable

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Installation kit for electronic cruise control BMW 7 Series (E32)

Allow the engine to run until operating temperature is reached.

Turn the engine off. Switch on the ignition. Adjust the wire cable by means of adjusting screw (3) and retaining nut (4) until gap (A) between nipple (1) and nipple bearing (2) measures 0.5 + 1 mm.

8. Notes on operation

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Installation kit for electronic cruise control BMW 7 Series (E32)

For models built up to 9/87:

Any driving speed above approx. 45 km/h (28 mph) can be held constant and memorised.

Move lever towards position

1 – Constant:

The car’s road speed is maintained and the value memo­ rised. If the lever is held in this position, the car will acce­ lerate without the accelerator pedal being depressed. As soon as the lever is released, the speed then reached is maintained and memorised. A f ter the accelerator pedal has been pressed down, e.g. when overtaking , the car re­ turns to the memorised speed.

Move lever towards position

2 – Resume: The previously memorised speed is resumed. Move lever towards position 3 – 0

The cruise control system is switched off regardless of momentary operating and traffic conditions.

Switching off the cruise control system The cruise control system is switched off:

  • by moving the lever briefly to the 0 position
  • if the rate of decrease in speed exceeds 1.5 mis, e.g. on uphill gradients and also when the brake or clutch pe­ dal is depressed or the automatic transmission selector lever is moved from D to N.

Erasing a memorised speed

The memorised speed setting is erased when the ignition key is turned to position 1.

On models built from 9/87

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Installation kit for electronic cruise control BMW 7 Series (E32)

Any driving speed above approx. 45 km/h (28 mph) can be held constant and memorised.

Move lever brief ly into position:

1 – ACCEL

The car’s road speed is maintained and the value memo­ rised. If the lever is held in this position, the car will acce­ lerate wi thout the accelerator pedal being depressed . As soon as the lever is released, the speed then reached is maintained and memorised. A fter the accelerator has been pressed down, e.g. when overtaking , the car returns to the memorised speed.

2 – DECEL

The car’s road speed is maintained and memorised.

If the lever is held in this position, the car will slow down (throttle c losed automatically) . The speed reached when the lever is released is then maintained and memorised. To increase or reduce the car’s speed by approx . 1 km/h, move the lever brief ly as often as required in the ACCEL. or DECEL. direction.

3 – RESUME

The previously memorised speed is resumed and main­ tained.

4 – OFF

The cruise control system is switched off regardless of momentary operating or traffic conditions.

Warning: only use the automatic cruise control in road

and traffic conditions which permit safe travel at a con­ stant speed.

To switch off the cruise control: move the control lever brief ly to OFF. The system is also switched off if the rate of deceleration exceeds 1.5 m/s2 • e.g. on uphill gradients, and also when the brake or clutch pedal is depressed or the automatic transmission lever is moved from D to N. The speed setting last memorised is erased when the ig­nition key is turned to position 1.

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