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E46 (1999 - 2006)
The fourth generation 3 Series (E46 chassis) was introduced in 1999 and set the standard for engineering and performance during it's years of production including being named to Car & Driver's 10 best list every one of those years! ! -- View the E46 Wiki

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  #1  
Old 05-14-2009, 06:26 PM
jppj36 jppj36 is offline
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Location: ny
 
Join Date: Aug 2008
Posts: 4
Mein Auto: 325i
Trouble code P0700 and P0710

Anyone know whats up with P0700 (Trans control system malfunction) and P0710 (Transmission fluid temperature sensor circuit malfunction). Any idea what thats about?
There is some mild knocking. Its a 2003 325i with 52000 miles. I did just change the oil last week? Checked the transmission fluid, that seems fine, nice and red.

Thanks
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  #2  
Old 05-14-2009, 07:34 PM
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v33_n0d3 v33_n0d3 is offline
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Location: Burbank
 
Join Date: Mar 2007
Posts: 2,337
Mein Auto: 2001 325i Sedan
What type of oil did you use?
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  #3  
Old 05-16-2009, 05:38 PM
jppj36 jppj36 is offline
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Location: ny
 
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Mein Auto: 325i
I used BMW oil 5w30 and filter from the dealer. I turned the check engine light off and it has not come back on in 2 days?
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Old 05-16-2009, 06:58 PM
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smolck smolck is offline
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Location: Birmingham, AL
 
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Mein Auto: 2002 330i ZSP
Quote:
Originally Posted by jppj36 View Post
Checked the transmission fluid, that seems fine, nice and red.

Thanks
I am thinking you checked the power steering fluid resevoir, unless you got under the vehicle and removed the fill plug and stuck your finger in there.
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  #5  
Old 06-03-2009, 06:19 AM
jppj36 jppj36 is offline
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Location: ny
 
Join Date: Aug 2008
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Mein Auto: 325i
You are correct. I just checked the power steering fluid. My mistake. Do you know where the transmission fluid temperature sensor is on the E46. Thanks
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  #6  
Old 02-16-2017, 02:00 AM
Raul arce Raul arce is offline
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Location: California
 
Join Date: Feb 2017
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Mein Auto: BMW 325i
Did you ever find out what was the problem I have both of those codes as well
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  #7  
Old 02-16-2017, 05:34 AM
jcase jcase is offline
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Location: Floida
 
Join Date: Nov 2015
Posts: 66
Mein Auto: 2002 330CI
The best way to diagnose this is to test with a compatible BMW scanner so you can read the trans codes and what the fluid temp sensor is saying.
On my 2002 330ci the connector on the left rear of the trans had some resistance in it so the trans temp was reading 320 degrees when it was only 180. I unplugged it, cleaned and lubed the pins.
So far it has helped
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