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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 12-04-2012, 05:40 PM
alcofribas alcofribas is offline
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Location: Asheville, North Carolina
 
Join Date: Jun 2012
Posts: 100
Mein Auto: 2001 Z3 2.5i
Aftermarket outside temp gauge - need help

I have a base-model Z3, no heated seats, no dash computer, just the analog clock. I calculate mpg with my iPhone, but I'd like to keep an eye on the outside temperature. I'm throwing this question out just to see if someone else has tried this.

I purchased a very nice temperature gauge that is velcro-ed into the niche just to the right of the steering column opposite the fog light switch. It has a long attached wire at the end of which is the temperature probe, approximately 1/4" in diameter. The probe is currently inserted into the space inside the dash, allowing warm interior air to show an elevated temperature.

QUESTION: How to route the wire+probe from beneath the dash to a spot exposed to exterior air without cutting into sheet metal. I would obviously prefer that the gauge show exterior temperature.

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  #2  
Old 12-05-2012, 06:18 AM
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Pinecone Pinecone is offline
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Location: Maryland
 
Join Date: Apr 2002
Posts: 10,482
Mein Auto: M Roadster/M3
There are various wire passthroughs in the firewall. They will have a rubber grommet and the wiring bundle going through it. You can probalby work the sensor through one of those and if the wire is long enough, put it in front of radiator cowl/behind the bumper.
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  #3  
Old 12-05-2012, 06:50 AM
Bob2.8 Bob2.8 is offline
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Location: Duluth MN
 
Join Date: Apr 2011
Posts: 141
Mein Auto: 1997 2.8
Quote:
Originally Posted by alcofribas View Post
It has a long attached wire at the end of which is the temperature probe, approximately 1/4" in diameter.
FYI You can cut and splice the wire.
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Old 12-06-2012, 05:53 PM
alcofribas alcofribas is offline
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Location: Asheville, North Carolina
 
Join Date: Jun 2012
Posts: 100
Mein Auto: 2001 Z3 2.5i
Temperature gauge

Thanks for the helpful advice.
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