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Old 01-21-2013, 09:45 AM   #1
1reddawg OP
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Is this the Hall Sensor?


Is The Hall Sensor "A" & "B" in this diagram.I am trying to get a Part # to replace mine. If you could PLEASE give me a part #. if this is not it.
Thanks
Reddawg
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Old 01-21-2013, 09:52 AM   #2
Riteris
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You got it right. (Assuming you are wanting it for a 2004 1150.)

I double checked on the Max BMW webpage. I do not know why there is no #1

02 12 11 7 673 277 IGNITION SENSOR 0.35 1 $312.86
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Old 01-21-2013, 09:59 AM   #3
Jim Moore
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The part is part 1 or part 2. The A and B refer to the plug, which is different for the 1100 and 1150 models. EuromotoElectric also sells them for cheaper.
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Old 01-21-2013, 09:59 AM   #4
ElMartillo
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Quote:
Originally Posted by 1reddawg View Post
I am trying to get a Part # to replace mine.
You may look at Beemer Bone Yard for a good price on a suitable Bosch replacement part. If you are ordering from a BMW dealer, prices may be a lot higher.

Cheers!
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Old 01-21-2013, 10:09 AM   #5
1reddawg OP
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Thank You Fellas.I will look into Beemer Bone yard and Euromotoeletric to find a less expensive replacement
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Old 01-21-2013, 10:57 AM   #6
def
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In an engine that uses electronics to provide fuel and ignition information, the control unit (Motronic or other) must know the position of the crankshaft in order to deliver fuel and spark at the proper time. The HES assembly provides this engine position information....sorta like the ignition points we used to change on older engines.

Before I spent a lot of money on a replacement HES assembly, I would ascertain that the actual HES devices are electrically inoperable.

It is somewhat rare that the actual HES device(s) fail. Most often, the wiring is at fault causing intermittent shorts or an open circuit. Either will leave your boxer dead.

Checking the HES assembly for proper operation is not challenging...it just takes some patience and could save $100s.
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Old 01-21-2013, 11:04 AM   #7
def
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BTW, there have been some recent threads dealing with the HES installation and associated problems achieving correct engine/HES timing.

Your model likely requires that the HES rotor be glued to the alternator pulley and that the HES rotor is installed in the correct orientation to provide the correct "crankshaft" timing information.

I am quoting from my 2001 GS BMW REProm. I would refer to the factory information for your model in this regard.
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Old 01-22-2013, 09:07 AM   #8
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Quote:
Originally Posted by def View Post
In an engine that uses electronics to provide fuel and ignition information, the control unit (Motronic or other) must know the position of the crankshaft in order to deliver fuel and spark at the proper time. The HES assembly provides this engine position information....sorta like the ignition points we used to change on older engines.

Before I spent a lot of money on a replacement HES assembly, I would ascertain that the actual HES devices are electrically inoperable.

It is somewhat rare that the actual HES device(s) fail. Most often, the wiring is at fault causing intermittent shorts or an open circuit. Either will leave your boxer dead.

Checking the HES assembly for proper operation is not challenging...it just takes some patience and could save $100s.


+1 on the diagnose prior to ordering the new part!
I had a bad sensor a while back and found that the original wiring was very brittle and the sheathing would just flake off when bent. The "lead" wiring from the pickup is good (if I remember... high temp silicone?) but then it's spliced with some lower grade wire from there up to the plug. This is where the trouble occurs.
I ended up replacing the pickups for around 20 bucks each, mounted them on the existing plate and got good , high temp wire from an avionics shop at the local airport for 10 bucks .....works GREAT!
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Old 01-22-2013, 09:43 AM   #9
def
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Originally Posted by Uncledeadly View Post
I ended up replacing the pickups for around 20 bucks each, mounted them on the existing plate and got good , high temp wire from an avionics shop at the local airport for 10 bucks .....works GREAT!
Bingo.

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Old 01-22-2013, 12:05 PM   #10
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Quote:
Originally Posted by Uncledeadly View Post
+1 on the diagnose prior to ordering the new part!
I had a bad sensor a while back and found that the original wiring was very brittle and the sheathing would just flake off when bent. The "lead" wiring from the pickup is good (if I remember... high temp silicone?) but then it's spliced with some lower grade wire from there up to the plug. This is where the trouble occurs.
I ended up replacing the pickups for around 20 bucks each, mounted them on the existing plate and got good , high temp wire from an avionics shop at the local airport for 10 bucks .....works GREAT!
I recently attended a tech session at Budd's BMW in Hamilton, ON. The service manager there, JP, confirmed this was the typical failure on the HES. The sensor itself is usually fine, but the wires dry rot and short out. He recommended exactly what you did: rebuild it with silicone insulated wires, and then wrap with an appropriate high-temp sheathing.
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Old 01-22-2013, 12:25 PM   #11
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Thanks def...


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Old 02-24-2013, 09:57 PM   #12
MsLizVt
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Originally Posted by 1reddawg View Post
Thank You Fellas.I will look into Beemer Bone yard and Euromotoeletric to find a less expensive replacement

1reddawg, hi!

Hope you don't mind me reviving this thread, but just curious how you made out?

Thanks!


Liz
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Old 02-24-2013, 10:17 PM   #13
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Originally Posted by Jim Moore View Post
The part is part 1 or part 2. The A and B refer to the plug, which is different for the 1100 and 1150 models. EuromotoElectric also sells them for cheaper.
Not only cheaper but has the updated wire which has a higher temperature rating
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