Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E70) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 06-10-2013, 08:57 PM
Member
 
Join Date: Nov 2012
Location: Atlanta, GA.
Posts: 497
gregg3gs is on a distinguished road
Cant Find Fuse P0050

My car: 08 e70 4.8
My problem: P0050 - Oxygen Sensor B2 S1: Heating Circuit: Malfunction/Open Circuit

I understand that a fuse may be bad. I have spend an hr looking for the darn thing and cant find it.
How dumb of a manufacturer not to have labeled the fuses (my 1st and last BMW, sounds like)... but I digress.

Would someone please help me.
I need to locate the fuse and test it before I get a new o2 sensor.
I have looked under the glove box but all 30amp fuses appear to be ok.
I am looking my mind.

Beers to one who helps me. Thank You.



UPDATE: the write up is on 2nd page (sort of write up)

Last edited by gregg3gs; 06-23-2013 at 02:55 PM.
Reply With Quote

Sponsored Links

  #2  
Old 06-10-2013, 09:35 PM
Member
 
Join Date: Dec 2009
Location: Atlanta, GA
Posts: 268
Xtony is on a distinguished road
There's another fuse box in the right rear panel of the truck. Tucked to the side of the fuse box is a guide to what each fuse covers.
__________________
Reply With Quote
  #3  
Old 06-10-2013, 09:40 PM
TerminatorX5's Avatar
Member
 
Join Date: Jul 2006
Location: Stafford, VA & Harrisburg, PA - USA
Posts: 5,736
TerminatorX5 is on a distinguished road
is there an E-box in the engine bay? some fuses, relays could be there
Reply With Quote
  #4  
Old 06-10-2013, 10:45 PM
Member
 
Join Date: Nov 2012
Location: Atlanta, GA.
Posts: 497
gregg3gs is on a distinguished road
I have located two fuses, 40Amp, located under the cabin air filter.
Both are good.

As for other fuse panels... I have one in under glove box and one in the back passenger side next to tail light. I have no documents tucked in anywhere, my guess is previous owner has removed it.

Can someone scan their fuse layouts and email me or post on line.

I appreciate the help.


I will continue troubleshooting tomorrow.
Reply With Quote
  #5  
Old 06-11-2013, 02:03 AM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,730
ard is on a distinguished road
How did you diagnose the fuse bad? Did you measure the voltages at the connection to the O2 sensors and find no voltage?

This error is most common when an O2 is unplugged or a wire ripped.... on the E39 the fuse is under the ebox/air filter and is NOT well marked/documented.

Again, measure voltages at the O2 connection first, THEN look for fuses.
Reply With Quote
  #6  
Old 06-11-2013, 07:07 AM
Member
 
Join Date: Dec 2009
Location: Atlanta, GA
Posts: 268
Xtony is on a distinguished road
I had codes 2C9C and 2C61 which were for Lambda probe heater front catalyst, control and Lambda probe front catalyst, electrical error. Ended up replacing the passenger side pre-cat sensor and all is well. I do a lot of DIY work and the pre-cat sensors on the V8 engine are a royal pain because of their location.
__________________
Reply With Quote
  #7  
Old 06-11-2013, 08:08 PM
Member
 
Join Date: Nov 2012
Location: Atlanta, GA.
Posts: 497
gregg3gs is on a distinguished road
Stopped by the dealer today and they said that I cant buy a replacement card with fuses listed on it.

If anyone has all fuse listing and layouts, please post them or email me the scans directly. My email -> [email protected]
Reply With Quote
  #8  
Old 06-11-2013, 08:49 PM
Member
 
Join Date: Dec 2009
Location: Atlanta, GA
Posts: 268
Xtony is on a distinguished road
Just sent you pictures of the diagrams to your e-mail. If that doesn't work, send me a PM with your cell # and I'll send them to your phone. BTW, make sure you look closely for the card. It is neatly folded and tucked in the right side of the rear fusebox. It's really hard to find. All you see is a little tab sticking out.
__________________
Reply With Quote
  #9  
Old 06-12-2013, 12:47 AM
ard ard is offline
Member
 
Join Date: Mar 2006
Location: Sierra Foothills, California
Posts: 6,730
ard is on a distinguished road
Quote:
Originally Posted by ard View Post
How did you diagnose the fuse bad? Did you measure the voltages at the connection to the O2 sensors and find no voltage?

This error is most common when an O2 is unplugged or a wire ripped.... on the E39 the fuse is under the ebox/air filter and is NOT well marked/documented.

Again, measure voltages at the O2 connection first, THEN look for fuses.
?
Reply With Quote
  #10  
Old 06-17-2013, 10:24 PM
Member
 
Join Date: Nov 2012
Location: Atlanta, GA.
Posts: 497
gregg3gs is on a distinguished road
UPDATE:

at the end of the day the problem was a bad O2 Sensor.

Wow, BMW could not make it any harder and more difficult to get to it and replace it.
Not only did I have to find a little boy to get to the O2 sensor, now I am gonna have to feed him Benihanas.

After driving over 500 miles this weekend all is well.
Reply With Quote
Reply

Bookmarks

Tags
bmw, e70, fuse, location, p0050

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 02:53 PM.
vBulletin, Copyright 2024, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.