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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > Z Series > E36/7 Z3 (1996-2002)

E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 12-29-2012, 11:12 AM
nitrydr1600 nitrydr1600 is offline
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Location: michigan
 
Join Date: Dec 2012
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Mein Auto: 1997 z3, 1982 corvette
97 z3 1.9 knock senser

where is this thing located if im standing in front of the vehicle... 2 codes 325 330 both leadind to knock senser
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  #2  
Old 12-29-2012, 01:46 PM
Monolith Monolith is offline
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Location: NJ
 
Join Date: May 2008
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Mein Auto: 1997 Z3 1.9L DASC Auto
There's two knock sensors, both on the driver's side of the engine block under the intake manifold.

#18 is the sensor wire:


Last edited by Monolith; 12-29-2012 at 01:50 PM.
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  #3  
Old 12-29-2012, 01:52 PM
nitrydr1600 nitrydr1600 is offline
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Location: michigan
 
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Mein Auto: 1997 z3, 1982 corvette
can i get to these without pulling the intake back off?
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  #4  
Old 12-29-2012, 03:00 PM
Monolith Monolith is offline
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Location: NJ
 
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Mein Auto: 1997 Z3 1.9L DASC Auto
I've only heard rumors of people doing that. The sensors need to be torqued down to a specific value and you should keep their orientation the same as the factory install. Would be very tough to do that with the intake installed.
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  #5  
Old 12-29-2012, 03:41 PM
nitrydr1600 nitrydr1600 is offline
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Location: michigan
 
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Mein Auto: 1997 z3, 1982 corvette
wholy **** this car just keeps getting more interesting
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  #6  
Old 12-29-2012, 05:13 PM
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vintage42 vintage42 is offline
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Location: Louisville, KY
 
Join Date: Jun 2007
Posts: 1,546
Mein Auto: 1997 BMW Z3 1.9 5MT
The Bentley Manual page 113-16 says the upper intake manifold must be removed to replace the knock sensors (two on one harness). The upper manifold unbolts from the lower manifold, which remains on the head. You can download the manual. Google Bentley_BMW_3-Series_Service_Manual_(e36) and there will be several sites offering it free.

EDIT: Better search for bentley bmw 3-series _service_manual(e36).pdf

Here's the sensor:
http://www.pelicanparts.com/cgi-bin/...31%2E%39%20%20
and
http://www.***************/1997bmwz3knocksensor.htm
Anyway, go to car-stuff dot com and search for 1997bmwz3knocksensor

Here's some threads on it:
http://forums.bimmerforums.com/forum....php?t=1465904
and
http://forums.bimmerforums.com/forum....php?t=1846765

Last edited by vintage42; 12-30-2012 at 05:21 AM. Reason: URL blocked. Need to add .pdf to find downloadable file.
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  #7  
Old 12-30-2012, 05:25 AM
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vintage42 vintage42 is offline
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Location: Louisville, KY
 
Join Date: Jun 2007
Posts: 1,546
Mein Auto: 1997 BMW Z3 1.9 5MT
Better search for bentley bmw 3-series _service_manual(e36).pdf
And here's the upper manifold removed:
http://www.318ti.org/forum/showpost....24&postcount=2

Last edited by vintage42; 12-30-2012 at 11:27 AM.
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