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Crankshaft positioning sensor location?

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Old 01-18-2012, 03:43 PM   #1
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Default Crankshaft positioning sensor location?

I have a 2001 A8L and I bought the sensor but I just don't know where its located. Some help will be appreciated.
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Old 01-18-2012, 04:14 PM   #2
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I have a 2001 A8L and I bought the sensor but I just don't know where its located. Some help will be appreciated.
Welcome aboard!

The crankshaft position sensor on all Audi A8/S8 D2 models is on the transmission bellhousing (driver's side).

It's located roughly at 2 o'clock looking from the front of the engine (just behind the engine / transmission mounting faces).
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Old 01-18-2012, 04:50 PM   #3
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G28

http://audipages.com/tozo/5HP24A.JPG
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Old 11-20-2013, 11:54 AM   #4
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Welcome aboard!

The crankshaft position sensor on all Audi A8/S8 D2 models is on the transmission bellhousing (driver's side).

It's located roughly at 2 o'clock looking from the front of the engine (just behind the engine / transmission mounting faces).
Does anyone have a writeup on this?
Is it something I can do at home?
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Old 11-20-2013, 05:08 PM   #5
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Does anyone have a writeup on this?
Is it something I can do at home?
Not much to write about. You need a 5mm Allen wrench to remove one bolt then unplug the sensor and replace.
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Old 09-24-2015, 08:18 AM   #6
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Not much to write about. You need a 5mm Allen wrench to remove one bolt then unplug the sensor and replace.
Be careful. I sheared the head off the allen bolt when I removed mine. Should have used WD-40, or heat, or tried to tighten it a tiny bit first. Now I have to get in there with a drill and a tiny EZ Out, or some other method of removing the broken-off bolt.
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Old 09-24-2015, 08:28 AM   #7
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if that is where the cam position sensor is located than what is this sensor(attached) on the backside of the driverside bank of cylinders up against the firewall. I believe it is also called a crankshaft position sensor.
Your picture is of a camshaft position sensor (G40), something completely different than the engine speed (rpm) sensor (G28), which also acts as a crankshaft position sensor in the D2 A8. (Thanks to silverd2 for this info.) Other (later?) years have a separate crankshaft position sensor (G4) right next to the G28.
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Old 09-24-2015, 03:03 PM   #8
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if that is where the cam position sensor is located than what is this sensor(attached) on the backside of the driverside bank of cylinders up against the firewall. I believe it is also called a crankshaft position sensor.

which one normally fails more often? mine is COVERED in dirt and oil.
As hillpc stated, that is camshaft position sensor ... there are two of those ... the other is on the front end of the passenger's side cylinder head (bank #1)
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