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 > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)

E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 04-21-2013, 05:52 AM
Zooks527's Avatar
Zooks527 Zooks527 is offline
Officially Welcomed to the 'Fest
Location: Mansfield, MA
 
Join Date: Mar 2009
Posts: 3,899
Mein Auto: 2009 335i xDrive coupe
Bavarian Technic Tool and Power Inverters

Good morning.

Sort of a side note here. You see lots of referrals to the Bavarian Technic tool for reading codes and such on your engine. I did notice one point in the manual. They stress (in a couple of places) that you should never use the tool while powering your notebook off of a power converter connected to the car's electrical system.

How come? What's the issue there? If it's something related to grounding, why wouldn't there be a warning about powering it from a 12V adapter in addition to a power inverter?

There's no problem from my perspective, but sure makes me curious.

Regards,
George
__________________
2009 335i xDrive coupe, Jet Black, Black Leather, Grey Poplar, Steptronic, ZPP, ZSP, ZCW, iPod/USB, HD radio, Parking Assist. Rear Fogs, Hardwire V1, ProFit G3.
ED May 12, 2009, Munich dropoff May 16, Redelivery June 22, 2009




Prior 33 years of cars: 1967 BelAir wagon / 1968 LeMans Tempest / 1970 Mustang Mach 1 / 1972 El Dorado / 1978 Corvette (kept until first Bronco) / 1981 Subaru GL wagon AWD / 1983 s10 Blazer 4x4 (big mistake) / 1985 Bronco 4x4 / 1996 Bronco 4x4 / 2004 Passat 4motion
Reply With Quote
Advertisement
  #2  
Old 04-21-2013, 06:55 AM
CALWATERBOY's Avatar
CALWATERBOY CALWATERBOY is offline
Officially Welcomed to the 'Fest
Location: San Francisco
 
Join Date: Aug 2009
Posts: 10,007
Mein Auto: 2009 E93 N54
Quote:
Originally Posted by Zooks527 View Post
Good morning.

Sort of a side note here. You see lots of referrals to the Bavarian Technic tool for reading codes and such on your engine. I did notice one point in the manual. They stress (in a couple of places) that you should never use the tool while powering your notebook off of a power converter connected to the car's electrical system.

How come? What's the issue there? If it's something related to grounding, why wouldn't there be a warning about powering it from a 12V adapter in addition to a power inverter?

There's no problem from my perspective, but sure makes me curious.

Yup! USB ground isolation shoulda been implemented - prob not judging from above.
Reply With Quote
  #3  
Old 04-21-2013, 07:15 AM
CALWATERBOY's Avatar
CALWATERBOY CALWATERBOY is offline
Officially Welcomed to the 'Fest
Location: San Francisco
 
Join Date: Aug 2009
Posts: 10,007
Mein Auto: 2009 E93 N54
Quote:
Originally Posted by Zooks527 View Post
How come? What's the issue there? If it's something related to grounding, why wouldn't there be a warning about powering it from a 12V adapter in addition to a power inverter?

A famous issue for oscilloscope jockeys, no USB isolation can zap an instrument!

But, may have something to do with much much higher voltage, AC....broadcasts a signal.

Here ya go - build USB isolation yer bad self.

And for entertaining viewing, check in below - gotta love Aussies - have relatives near Adelaide & Melbourne.


Last edited by CALWATERBOY; 04-21-2013 at 07:16 AM.
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 3 Series / 4 Series > E90/E91/E92/E93 (2006 - 2013)
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 09:36 AM.


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