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BMW Crank Position Sensor Replacement

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BMW Crank Position Sensor Replacement

Replacement Parts Catalog

OEM Replacement Parts Catalog

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What is a crank position sensor?

A crank position sensor, also known as the crank position sensor, is a sensor or component that monitors the position or rotational speed of the crank. Engine management systems use the information transmitted by the sensor to control things such as ignition timing and other important functions. The sensor can also relate other crucial data including the relation of the valves to the pistons and a true sense of engine RPM's.

Where can I find the crank position sensor?

The crank position sensor can be found in the front of the crank on the engine block below or next to the water pump in many applications. It can also be located on the main crank pully or the flywheel. The orientation of each make and model's engine is different, so the position sensor could be near your fender or near your front bumper depending on the car. They are typically made of magnets and oil and work on the principles of the Hall Effect.

What can go wrong with my sensor?

The sensor may become burnt or worn out. The most common causes of crankshaft position sensor failure are exposure to extreme heat when you have a gasket or crank problem, corruption from oil or other engine fluids that leaked onto the sensor, or wear from normal use over a long period of time. When the sensor goes bad, it stops transmitting the signal which contains the vital data for ignition and other parts.

How do I know if I have a bad crank position sensor?

You will know that you have a bad crank position sensor by how your engine idles, how your pistons fire, or how you accelerate. It will usually be more noticeable as you raise the RPM's. With a bad or faulty sensor, you engine may misfire causing motor vibration or backfires. You may also experience hesitation while accelerating or shaking during engine idle. In the worst case scenario, you won't be able to start your car.

Can I change my crank position sensor myself?

You can replace your crankshaft position sensor. The first thing you need to do is figure out how your engine block is placed in the engine compartment. Is it placed in there long ways where the front of the motor is near your bumper, or is it inverted as to where the front of the motor faces your drive or passenger side fender? Once you figure that out, then jack the car up, go near the water pump at the front of the car, and remove components that block access to the sensor. This may include removing parts like the water pump which could be in the way. Once accessible, remove the two bolts holding the sensor into place, remove the wires that send the data, and place in the new part. Replace the other parts as necessary when you are finished. Be sure to test the car to make sure it's working and running smoothly. Before getting started, it's a good idea to consult your owner's manual or speak with a local factory dealership for advice.

Latest BMW Crank Position Sensor Applications

	Delphi Crank Position Sensor 97-00 BMW Z3 2.8 Roadster M52 Does not include 12 14 1 748 398 o-ring. Crank Position Sensor Does not include 12 14 1 748 398 o-ring.		Crank Position Sensor 78-84 BMW 733i M30 Position Tranmsmitter located in lower timing case Crank Position Sensor located in lower timing case
	Vemo Crank Position Sensor 89-90 BMW 525i M20 Pulse Generator Motronic 1.1 1 per engine Crank Position Sensor		Vemo Crank Position Sensor 09/87 - BMW 325is Coupe M20 Pulse Generator Motronic 1.1 1 per engine Crank Position Sensor
	Hella Crank Position Sensor 09/93 - BMW 318is Coupe M42 Crank Position Sensor		Crank Position Sensor 98-00 BMW Z3 3.2 M Roadster S52 Does not include 12 14 1 748 398 o-ring. Crank Position Sensor Does not include 12 14 1 748 398 o-ring.
	Vemo Crank Position Sensor 12/86 - BMW 528e M20 Control Unit DME Motronic 1.1 Crank Position Sensor		Vemo Crank Position Sensor 97-01 BMW 740i M62 Located in bellhousing. Crank Position Sensor OEM Located in bellhousing.
	Vemo Crank Position Sensor 00-03 BMW X5 4.4i M62 Crank Position Sensor OEM		Crank Position Sensor 79-81 BMW 528i M30 Position Tranmsmitter located in lower timing case Crank Position Sensor located in lower timing case
	Crank Position Sensor 99-02 BMW Z3 2.5 Roadster M52 Does not include 12 14 1 748 398 o-ring. Crank Position Sensor Does not include 12 14 1 748 398 o-ring.		Crank Position Sensor 91-93 BMW M5 S38 Crank Position Sensor
	Vemo Crank Position Sensor 09/87 - BMW 325i Sedan M20 Pulse Generator Motronic 1.1 1 per engine Crank Position Sensor		Vemo Crank Position Sensor 96-97 BMW 318is Coupe M44 Crank Position Sensor OEM
	Crank Position Sensor 97-01 BMW 740i M62 Located in bellhousing. Reference Sensor Located in bellhousing.		Crank Position Sensor 01-06 BMW X5 3.0i M54 Does not include 12 14 1 748 398 o-ring. Crank Position Sensor Does not include 12 14 1 748 398 o-ring.
	Crank Position Sensor 93-95 BMW 530i M60 Lower Crank Position Sensor		Crank Position Sensor 99-00 BMW 323i Sedan M52 Does not include 12 14 1 748 398 o-ring. On models built prior to production date 11/98, (1) 12 51 4 592 703 lead adapter is required. Crank Position Sensor Does not include 12 14 1 748 398 o-ring.
	Crank Position Sensor 00-05 BMW 325i Sedan M54 Does not include 12 14 1 748 398 o-ring. Crank Position Sensor Does not include 12 14 1 748 398 o-ring.		FAE Crank Position Sensor 92-95 BMW 325i Convertible M50 Located in lower timing cover Crank Position Sensor Located in lower timing cover

Some BMW Crank Position Sensor Applications (View Full Catalog Above)

BMW 318i Sedan	BMW 318is Coupe	BMW 323i Sedan
BMW 325Ci Coupe	BMW 325i Convertible	BMW 325i Sedan
BMW 325is Coupe	BMW 325xi Sedan	BMW 328i Convertible
BMW 330i Sedan	BMW 525i	BMW 528e
BMW 528i	BMW 530i	BMW 535i
BMW 540i	BMW 635CSi	BMW 733i
BMW 735i	BMW 740i	BMW 740iL
BMW M5	BMW X5 3.0i	BMW X5 4.4i
BMW Z3 2.5 Roadster	BMW Z3 2.8 Roadster	BMW Z3 3.2 M Roadster

M20	M30	M42	M44	M50	M52	M54	M60
M62	S38	S52

More Applications (View Full Catalog Above)

Acura	Buick	Cadillac	Chevrolet	Chrysler	Dodge	Eagle	Ford
Geo	GMC	Honda	Hyundai	Infiniti	Isuzu	Jaguar	Jeep
Kia	Lexus	Mazda	Mercedes Benz	Mercury	Mitsubishi	Nissan	Oldsmobile
Plymouth	Pontiac	Rover	Saab	Saturn	Scion	Subaru	Toyota
Volvo