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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki |
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#1
07-03-2012, 10:29 AM
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Outside Temperature Sensor - Where is it ?
I have 2001 E39 525i. The temperature as shown on the dash/miles indicator is always wrong. When it is 85F outside it shows -10F. It affect the way the auto AC works. Where is this sensor located and is this something I can replace? Please suggest me any online shop I can order it from. Thanks.
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#2
07-03-2012, 10:39 AM
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Passenger side front wheel well just aft of the bumper. The liner contains a molded bracket that holds the sensor....this often breaks with time, heat or impact.
Liner:  Use this DIY: http://haferman.org/bmw/
__________________
Want to learn about your E39 5 Series? Click Me Albo's Official Upgrade Thread: http://www.bimmerfest.com/forums/sho...d.php?t=532572  2003 530iA - Mumbo Jumbo  *E39 in Sig is Not My Car Quote:
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#3
07-03-2012, 11:10 AM
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Thanks. The link is quite descriptive. I will give it a try. Any recommendation where to buy the sensor and parts?
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#4
07-03-2012, 11:19 AM
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go here for part number http://www.realoem.com/bmw/
then go here to shop http://furiousmethod.com/
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 01 Anthracite 525i Sport, with 01 E53 3.0 and 91 Z32TT Last edited by tmvE39/E53/Z32; 07-03-2012 at 11:20 AM.
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#5
07-03-2012, 11:32 AM
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Easy to replace on the car. They sell on eBay for around $16 and are easy to install. They are shaped like a long cone. This will enable the max air to work as well.
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#6
07-03-2012, 03:03 PM
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The wiring for the sensor also is prone to damage, and many times the actual sensor is still good just the wiring that ****s up.
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#7
07-03-2012, 08:53 PM
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Quote:
Do a visual inspection for corrosion in the connector. If you have a meter check your wires to chassis ground. Do DC voltage to ground first. If that reads zero then check ohms to ground. I imagine the sensor is a thermistor of some sort. Last edited by seemyad; 07-04-2012 at 03:09 AM.
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#8
07-04-2012, 01:46 AM
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Go to the bestlinks and thread search for "ambient" & you'll find, among others:
- Ambient temperature sensor breaking To re-locate, see cn90's DIY: AMBIENT TEMP SENSOR HIDING PLACE: http://forums.bimmerforums.com/forum....php?t=1418124
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Note: Your mission, should you decide to accept it, is to add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders. See also: E39 Bestlinks & How to easily find what you need, in seconds!
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