bmwrepairs: BMW

Friday, November 11, 2011

How to remove Combination Switch on 2005 BMW 325?

The procedure is as follows :---

Combination Switch

Removal & Installation

Fig. Remove lower section of the steering column casing by unscrewing the fasteners

Fig. Remove upper section of steering column casing after unclipping the catches

CAUTION

On vehicles equipped with an air bag, the negative battery cable must be disconnected, before working on the system. Failure to do so may result in deployment of the air bag and possible personal injury.

Disconnect the negative battery cable. Remove the steering wheel.

Remove the lower instrument panel on the left side.

Remove the steering column casing lower section.

If equipped with an air bag, drive out the pins and lift out the expansion rivet. Remove the upper section of the steering column casing.

Remove the plug and disconnect the electrical connectors.

Push in the retaining hooks on both sides and pull out the switch.

To install:

Press the switch in position until the retaining hooks engage it in place.

Attach all electrical connectors and install the plug.

The remaining components are installed in the reverse order from which they were removed.

Install the steering wheel and connect the negative battery cable.

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For more car related problem troubleshooting:---

This are the sections, you can go through and click the link to read its troubleshooting.

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The car will not start?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-start.html

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Car will not crank?

http://schematicsdiagram.blogspot.com/2011/06/car-will-not-crank.html

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Car has no spark?

http://schematicsdiagram.blogspot.com/2011/06/car-has-no-spark.html

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How to troubleshoot car battery?

http://schematicsdiagram.blogspot.com/2011/06/how-to-troubleshoot-car-battery.html

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How to test starter solenoid?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-starter-solenoid.html

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How to test cars starter?

http://schematicsdiagram.blogspot.com/2011/06/how-to-test-cars-starter.html

How to replace starter in car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-starter-in-car.html

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car will turn over but will not start?

http://technoanswers.blogspot.com/2011/05/car-will-turn-over-but-will-not-start.html

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Car wont start?

http://howtobyme.blogspot.com/2011/10/car-wont-start.html

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How to replace Interior Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-interior-lights-on-car.html

Car lights not working, even after replacing the bulb/lamp?

Click this link below:--

http://schematicsdiagram.blogspot.com/2011/06/car-lights-not-working-even-after.html

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How to replace head lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-head-lights-on-car.html

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How to replace Parking, turn, and Brake Lights on car?

http://schematicsdiagram.blogspot.com/2011/06/how-to-replace-parking-turn-and-brake.html

How to test and replace ignition coils on BMW 325?

Ignition Coils

First refer testing instructions,if its test faulty,then go through replacing procedure for ignition coils:---

Testing

E36 Models
Except M44 Engine

Fig. Removing the coil pack cover-M42 engine shown

Fig. Coil pack cylinder assignments-M42 engine shown

Refer to the spark plug removal procedures in Section 1 and remove the valve cover trim cover. On M42 engines, remove the coil pack cover.

With the ignition OFF , disconnect the harness connector by releasing the locking bar and pulling off the connector.

Check the primary resistance between the two outside terminals (terminals 1 and 15) of the coil connector socket.

The resistance should be approximately 0.4-0.8 ohms. Replace the coil if out of specification. The secondary side of the coil cannot be checked due to the design of the coil.

M44 Engine

The M44 engine uses a combined ignition coil assembly. The coil assembly is comprised of four separate ignition coils.

With the ignition OFF , disconnect the harness from the ignition coil assembly by turning the knurled electrical connector counterclockwise and carefully pulling off the connector.

Refer to the illustration of the primary electrical connector and check the primary resistance between the terminals for each individual coil (terminals 1 and 15) as follows:

Coil 1: Pin 1-Pin 2
Coil 2: Pin 6-Pin 2
Coil 3: Pin 7-Pin 2
Coil 4: Pin 5-Pin 2

The resistance should be approximately 0.4-0.8 ohms. Replace the coil assembly if out of specification. The secondary side of the coil cannot be checked due to the design of the coil.

Fig. Use an ohmmeter to check the resistance between the specified pins

Fig. The terminal pins are numbered, but difficult to see. An enhanced photo really helps. Note the absence of a pin terminal 4

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Removal & Installation

E36 Models
6- Cylinder Engines

Please refer to the spark plug removal procedures in Section 1 for details pertaining to individual ignition coil removal.

M42 Engines

With the ignition OFF , remove the ignition coil cover.

Label the wiring to ensure proper reassembly.

Detach the harness connector by releasing the locking bar and pulling off the connector.

Remove the high tension wires from the ignition coil(s).

Remove the ignition coil mounting fasteners, then remove the coils.

Installation is the reverse of the removal procedure.

M44 Engines

The M44 engine uses a combined ignition coil assembly. The coil assembly is comprised of four separate ignition coils and is replaced as a unit.

With the ignition OFF , disconnect the harness from the ignition coil assembly by turning the knurled electrical connector counterclockwise and carefully pulling off the connector.