Heated Spray Nozzles BMW 5 Series E34

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BMW Installation Instructions

Heated Spray Nozzles BMW 5 Series E34

Specialised knowledge is required.

Installation time is approx. 1-1.5 hours, though this may vary depending on the condition of the vehicle and its fittings.

General information

Instructions and illustrations are given for left-hand drive models. Certain work steps must be carried out in mirror-image fashion for right-hand drive models.

Remove all drillings thoroughly, burr drilled edges and coat with zinc paint.

Before carrying out welding work, remove all easily inflammable objects. Parts that could be damaged by sparks must be covered or removed.

Newly fitted metal parts and areas affected by welding, new cavities, seams, grooves etc. must be sealed with a BMW-approved preservation agent.

Tools and materials required

Regular screwdriver
Phillips screwdriver
Open-jawed spanner, A/F 10 mm
1/2″ ratchet
1/2″ extension
1/2″ drive socket, A/F 17 mm, 13 mm, 10 mm, 8 mm
Torx key T 10
Drill bit, dia. 5.0
Drill
Inorganic zinc

Contents

Chapter

  1. Vehicle preparation for removal
  2. Overview of supplementary wiring harness
  3. Laying supplementary wiring harness
  4. Removing front bumper
  5. Installing thermoswitch
  6. Installing windscreen washer jets

1. Vehicle preparation for removal

  1. Print out fault memory
  2. Disconnect battery
  3. Remove battery

2. Overview of supplementary wiring harness

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Heated Spray Nozzles BMW 5 Series E34

Item Type Vehicle connection Lead colour Connection

symbol

Plug-in station
A Connector Windscreen spray nozzle X105
B Connector Windscreen spray nozzle X106
C Connector Thermoswitch in right bumper X1149
D Cable lug Front right wing Brown X166
E Bare Yellow connector in front left footwell Green/black X14S 22

3. Laying supplementary wiring harness

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Heated Spray Nozzles BMW 5 Series E34

Installation points of supplementary wiring harness are: to cable connector (1) in front left footwell, to earth point (2) in right wing, to thermoswitch (3) and to spray nozzles (4, 5).

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Heated Spray Nozzles BMW 5 Series E34

Remove split rivet (1) and insulating mat (2).

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Heated Spray Nozzles BMW 5 Series E34

Remove Phillips screws from electronics box (see arrows in diagram) and take off cover.

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Heated Spray Nozzles BMW 5 Series E34

Remove Phillips screws (1).

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Heated Spray Nozzles BMW 5 Series E34

Remove hexagon nut (1) and mounting bracket (2) from electronics box.

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Heated Spray Nozzles BMW 5 Series E34

Pull up lever (1) and remove connector (2) in direction of arrow in diagram. Press spring (3) in direction of arrow and remove connector (4). Disconnect connector (5).

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Heated Spray Nozzles BMW 5 Series E34

Unscrew hexagon nuts (1). Remove socket (2) and lift out seal (3). Remove and turn around relay strip (4).

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Heated Spray Nozzles BMW 5 Series E34

Remove protective cap (1) and unscrew hexagon nut (2). Remove cable (3). Push back relay strip (4).

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Heated Spray Nozzles BMW 5 Series E34

Lift out (but do not remove) electronics box in direction of arrow in diagram.

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Heated Spray Nozzles BMW 5 Series E34

Remove screw (1) and lift away washer reservoir (2) (see arrow in diagram).

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Heated Spray Nozzles BMW 5 Series E34

Loosen plastic screw (1) by turning through 90° and remove headlight cover (2).

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Heated Spray Nozzles BMW 5 Series E34

Remove Phillips screws (1) and press down (but do not remove) glove-compartment cover (2) in direction of arrow in diagram.

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Heated Spray Nozzles BMW 5 Series E34

Remove Phillips screw (1) and panelling (2) in direction of arrow in diagram.

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Heated Spray Nozzles BMW 5 Series E34

Turn plastic screw through 90° and remove. Remove four Phillips screws (2) and pull away panelling (3).

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Heated Spray Nozzles BMW 5 Series E34

Remove connector from gong thermoswitch (see arrow in diagram).

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Heated Spray Nozzles BMW 5 Series E34

Lever out three cover flaps (1) with a screwdriver and remove Phillips screws (2) and panelling (3).

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Heated Spray Nozzles BMW 5 Series E34

Remove cover flap (1) and screw (2). Turn plastic screws through 90° and remove footwell panelling.

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Heated Spray Nozzles BMW 5 Series E34

Install connector holder (3), insert connectors (A, B) and secure supplementary wiring harness (1) using existing cable clips (2).

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Heated Spray Nozzles BMW 5 Series E34

Guide supplementary wiring harness (1) through radiator cover (3) and secure protective sleeves (2). Lay connecting cable (C) down to bumper.

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Heated Spray Nozzles BMW 5 Series E34

Lay supplementary wiring harness through existing cable straps (1) (as shown in diagram) along front right side to electronics box. Secure earth point (D) with nut (2).

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Heated Spray Nozzles BMW 5 Series E34

Pull out rubber plug (1) and guide supplementary wiring harness (2) through protective sleeve (3).

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Heated Spray Nozzles BMW 5 Series E34

Guide supplementary wiring harness through housing in direction of passenger compartment.

Note

Tighten supplementary wiring harness after inserting electronics box.

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Heated Spray Nozzles BMW 5 Series E34

Lay supplementary wiring harness (1) through glove compartment to left footwell as shown in diagram.

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Heated Spray Nozzles BMW 5 Series E34

Lay supplementary wiring harness (1) to connector (2) and crimp green/black cable (E) to green/black cable of connector (2).

4. Removing front bumper

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Heated Spray Nozzles BMW 5 Series E34

Release and remove bumper strips (1) on left and right sides of bumper.

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Heated Spray Nozzles BMW 5 Series E34

Remove hexagon bolts (1) on left and right sides of bumper (2).

Note

Tightening torque of hexagon nuts is 48 Nm.

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Heated Spray Nozzles BMW 5 Series E34

Pull out wheel-house panelling (1) on right and left sides of vehicle as indicated by arrow in diagram.

5. Installing thermoswitch

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Heated Spray Nozzles BMW 5 Series E34

Drill holes for bracket (1) as indicated in diagram.

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Heated Spray Nozzles BMW 5 Series E34

Secure bracket (3) with rivet (2), insert thermosensor (1) and attach connector (C).

6. Installing windscreen washer jets

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Heated Spray Nozzles BMW 5 Series E34

Remove connector holder. Open hose clip (1) and remove hose line (2).

Press nose (3) of windscreen washer jets (4) in direction of arrow in diagram and remove windscreen washer jets (4).

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Heated Spray Nozzles BMW 5 Series E34

Press in new windscreen washer jets (1).

Attach hose (1) and secure with hose clips (3). Plug in connectors (A, B) and attach to connector holder.

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