Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

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

Reply
 
Thread Tools Display Modes
  #1  
Old 01-27-2014, 08:55 AM
kylesteezedknox kylesteezedknox is offline
Registered User
Location: Royal Oak, MI
 
Join Date: Jan 2014
Posts: 28
Mein Auto: 1997 528i bmw
Slight transmission problems

So as im sure all of you know the trannys on e39's eventually need fluid and filter changes because they will **** up badd otherwise etc. etc. ive done the fluid and filter change and the car shifts really good.

But my check engine light is on, the abs and brake like are on and sometimes every so often the screen that reads P, D, R, 123 will go away and the tranny safe mode light will come on no codes are coming up. ive heard neutral safety switch could be a problem also the abs brake sensor in the rear almost looks like someone cut it idk. would that throw my tranny in safe mode? kinda weird. it reads perfect sometimes P R D when its supposed to but theres like 20% of the time when it doesn't. the car has such low mileage Im trying to make it super nice. what do u guys think?
Reply With Quote
Ads by Google
  #2  
Old 01-27-2014, 06:50 PM
bartelbe's Avatar
bartelbe bartelbe is offline
Officially Welcomed to the 'Fest
Location: Minnesota
 
Join Date: Aug 2013
Posts: 504
Mein Auto: 2xe39,e34,e32,e36
Unfortunately I can't say for certain what is causing your fail safe mode to come on intermittently. But perhaps a little insight will help. Your car has the gm 4l30e transmission and for the most part is pretty basic. I can tell you that electrically there is only 2 speed sensors ,that the trans really care about. Input shaft speed which it is using the crankshaft position sensor and output shaft speed which it gets from a magnetic speed sensor located on the tail shaft housing of the transmission its hard to see but you can get access to it and the wires with out pulling the transmission. There is also a range indicator mounted on the range selector input shaft. There is a way to test the renge indicator with a multimeter. The wheel speed sensors are used for the asc and abs control module's. So I would first check the connectors at the the range selector, it is a twist type connector as well as the main trans connector on the opposite side of the trans. If the check engine light is on then there should be a code. The abs light and the brake light could be the wheel speed sensor.
Reply With Quote
  #3  
Old 01-28-2014, 09:04 AM
kylesteezedknox kylesteezedknox is offline
Registered User
Location: Royal Oak, MI
 
Join Date: Jan 2014
Posts: 28
Mein Auto: 1997 528i bmw
Quote:
Originally Posted by bartelbe View Post
Unfortunately I can't say for certain what is causing your fail safe mode to come on intermittently. But perhaps a little insight will help. Your car has the gm 4l30e transmission and for the most part is pretty basic. I can tell you that electrically there is only 2 speed sensors ,that the trans really care about. Input shaft speed which it is using the crankshaft position sensor and output shaft speed which it gets from a magnetic speed sensor located on the tail shaft housing of the transmission its hard to see but you can get access to it and the wires with out pulling the transmission. There is also a range indicator mounted on the range selector input shaft. There is a way to test the renge indicator with a multimeter. The wheel speed sensors are used for the asc and abs control module's. So I would first check the connectors at the the range selector, it is a twist type connector as well as the main trans connector on the opposite side of the trans. If the check engine light is on then there should be a code. The abs light and the brake light could be the wheel speed sensor.
do you think I should start with the sensors on the transmission or go straight to the wheel speed sensors. And for some reason I ran my software on it which is specific for e39's and e36's a ton of ghost codes come up but maybe im missing something ill run it again
Reply With Quote
  #4  
Old 01-28-2014, 09:59 AM
dvdlkd dvdlkd is offline
Registered User
Location: south carolina
 
Join Date: May 2013
Posts: 77
Mein Auto: 1997 528
The only experience I have is with a wheel speed sensor (left front) that went bad. Got the ABS light and the car would also not shift out of second unless I manually shifted down and then up through the gears. But I did not have the shift position indication issues that you have. I have the same car (97 528) with the GM trans.

Some things you may want to try (because they only cost your time) are:
1) Pull the large connector apart on the driver's side of your transmission and ensure all the connection pins are clean (no oil or corrosion). Mine got saturated with oil from an oil filter housing leak. But did not have any symptoms, just a mess. I believe this is the connector that tells your car where the gear shift is.
2) Disconnect the battery for a couple of minutes to see if you get anything clears up/changes. Not a high probability of success, but no cost.

The next thing I would look at is the gear selector itself. Don't know how this one is made for a BMW but there must be internal cams and contacts to tell the transmission what gear to be in and feed this back to your console and cluster.

Do your console and cluster match?
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



Forum Jump


All times are GMT -7. The time now is 04:51 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms