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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 12-18-2013, 10:04 AM
savanna43 savanna43 is offline
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Location: New York
 
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Mein Auto: 745i
Dynamic Drive Inactive

I recently purchased a 2005 745i from a private seller, car is in beautiful condition with low mileage, family owned and kep in a garage. Owner even gave us snow tires he purchased for the car and put them on for us. Last week out of nowhere while we were driving the "Dynamic Drive Inactive" message/light came on and would go off and on on the displacy console for a minute and then stay on. When we turn the car off and back on whether immediately or hours/days later the message is gone but might come back within that day or next. Does anyone know what might be causing this and how much it's going to cost me to fix?
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  #2  
Old 12-18-2013, 10:32 AM
Mikichicago Mikichicago is offline
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Location: Chicago
 
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Mein Auto: 750 LI
Hi

It happened to me last week. Same fault. After reading through this forum I decided to check my battery. It was made in 2005. I replaced it and registered with INPA. Now I'm driving with hope that I fixed the problem.

Last edited by Mikichicago; 12-18-2013 at 10:34 AM.
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  #3  
Old 12-18-2013, 10:37 AM
savanna43 savanna43 is offline
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Location: New York
 
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Mein Auto: 745i
Dynamic Drive Inactive

How long has it been that you've been driving the car since you replaced the battery? Only asking because i read other forums with the same issue and it seems mechanics thought it was only the battery and then realized it was also the alternator. So since you've replaced the battery, the Dynamic Drive Inactive hasn't come back up?
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  #4  
Old 12-18-2013, 10:39 AM
Mikichicago Mikichicago is offline
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I replaced it Saturday. So I still cannot say anything. But no more Faults so far. And i read some posts from other users about their batteries lasting 8 years as mine. Also you should monitor operating voltage on the car. Some users say it should be around 14.4V. If it is too low or too high it might be sign of falling alternator or some other electrical part of the system.

Last edited by Mikichicago; 12-18-2013 at 10:44 AM.
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  #5  
Old 12-18-2013, 10:51 AM
savanna43 savanna43 is offline
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Ok, well i'm a woman with a BMW and of course have no idea, what "monitor operating voltage on the car" even means, can you help me out. May I ask how much the battery cost you and if you purchased it from the bmw dealership?
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  #6  
Old 12-18-2013, 11:04 AM
Mikichicago Mikichicago is offline
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Sorry about that. I bought battery from Advance Auto Parts. Original price was $181 but i found online coupon for $50 off. If bought from dealer it would cost probably twice more. I used to work on cars in my dad's car shop when I was a kid so most of the things needed to be fixed I'm trying to do myself. Dealers are way to expensive too go to. Now about operating voltage of the car: 1 put key in the ignition and press Start/Stop button without pressing brake. 2. Press and hold reset button in upper left corner of your dashboard. Hold for about almost a minute. First it will show you screen for resetting oil and brakes but you keep holding until new screen shows up. 3 go to number 19 "Unlocking" and hold the button again. On right side you will see that you need to input number. It is your five last digits of your VIN number added together. Than again hold until you lose right screen. 4 now go to number I think 7. It says Operating voltage. Now start car normally and you can monitor voltage. When you take a key out you need to repeat everythink if you need to monitor i again.

Last edited by Mikichicago; 12-18-2013 at 11:13 AM.
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  #7  
Old 12-18-2013, 11:09 AM
Mikichicago Mikichicago is offline
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Location: Chicago
 
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Mein Auto: 750 LI
If you don't want to mess around with your car you can always go to dealership of find a good car mechanic to do work for you. Also this forum has a lot of nice people who are posting solutions to problems and helping others. If I was closer I would help you as much I can. But I live in Chicago.
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  #8  
Old 12-18-2013, 11:17 AM
savanna43 savanna43 is offline
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Dynamic Drive Inactive

Wow, thank you for the heads up on everything you stated, i really appreciate it. The man i purchased the vehicle from would take his car to the BMW dealership but also had a good mechanic he dealt with and he gave me his name, location and number so i think i'll go to him first since he's familiar with the vehicle. I really appreciate all of your information. And you're english is quite fine.
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  #9  
Old 12-18-2013, 01:36 PM
Monaco&Barbera Monaco&Barbera is offline
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I had the same message come up and then disappear on my 2008 750i the dealer found out it was the steering angle sensor. So if the battery does not help it may be the steering angle sensor.
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  #10  
Old 12-19-2013, 12:07 PM
fabecton4570 fabecton4570 is offline
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Location: Atlanta, Ga.
 
Join Date: Oct 2012
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Mein Auto: 2004 745Li
Your battery and or alternator are not able to keep up the require amperage to support the cars needs. Your battery cannot sustain much usage below 70%. And if you are running a lot of accessories in your car, the alternator can't create enough amps to supply the car. So, the Dyanmic Drive Inactive will be the first system sacrificed. You get home, and later get back into the car, the light, system has reset itself; until the next time, you place alot of demand on the electrics of the car; ie, radio / cd player, lights, wipers, seat heater, and so on. Have your battery checked first, if it is not able to hold above a 70% charge, then it may be time to replace. If your battery checks good, have the output checked on your alternator.
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  #11  
Old 12-19-2013, 01:21 PM
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First_745Li First_745Li is online now
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I received that error a few months back, I reset the steering angle sensor with INPA and it was gone, never came back.
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  #12  
Old 02-02-2014, 05:47 PM
oldknife oldknife is offline
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I wanted to say thank you to everyone who contributes to this forum ... i just installed new battery and the errors went away.
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  #13  
Old 02-02-2014, 05:57 PM
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Did you register it?


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'02 Infiniti QX4 (sold & new owner totaled it 4 hours later)
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  #14  
Old 02-02-2014, 07:13 PM
oldknife oldknife is offline
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yup ... sure did
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  #15  
Old 02-02-2014, 07:32 PM
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Cool.


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'03 745Li (sold)
'03 Acura TL-S
'02 Infiniti QX4 (sold & new owner totaled it 4 hours later)
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  #16  
Old 02-02-2014, 08:28 PM
nr123 nr123 is offline
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I get that error also when the battery isn't fully charged. Now the car stays on a charger whenever it's not driven.
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  #17  
Old 07-26-2014, 08:57 AM
Waziri Bello Waziri Bello is offline
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Brake/drive faults


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