E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 07-11-2010, 11:03 AM   #1
Hageee
Registered User
 
Join Date: Feb 2010
Location: Germany
Posts: 180
My Ride: E46 330xiA
Send a message via ICQ to Hageee
Question 325xi, 330xi, 330xd Drivers - From 4WD to 2WD with a Fuse?!

Hello Guys,

i've found a Video from a E46 330xd-Automatic at youtube.de

LOOK @ 1:50


Please have a look, the driver drives with 4WD at the beginning. He removed a 50A-Fuse (DSC, ABS, 4WD :O ) and it's a 2WD Driveline

What is that?! I thought this is'n able becouse its a mechanical thing to deactivate the front wheel drive

I've tested it - IT WORKS!?!?!

Can anyone explain this?
Hageee is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 07-19-2010, 06:18 AM   #2
calibornn1979
Registered User
 
Join Date: Jul 2010
Location: Germany
Posts: 5
My Ride: E46 330Xi, E36 320i
haha here i go again. im on 3si.org. a 3000gt forum. and they claim the same houx for that car too.
calibornn1979 is offline   Reply With Quote
Old 07-19-2010, 10:15 AM   #3
officer140
Registered User
 
Join Date: Dec 2007
Location: The Bronx
Posts: 301
My Ride: 01 330xi, 99 TLR
Quote:
Originally Posted by Hageee View Post
Hello Guys,

i've found a Video from a E46 330xd-Automatic at youtube.de

LOOK @ 1:50


Please have a look, the driver drives with 4WD at the beginning. He removed a 50A-Fuse (DSC, ABS, 4WD :O ) and it's a 2WD Driveline

What is that?! I thought this is'n able becouse its a mechanical thing to deactivate the front wheel drive

I've tested it - IT WORKS!?!?!

Can anyone explain this?

Actually, can someone explain this: If it's a AWD car and a fuse is pulled to make it a 2WD car, then it gets stuck in the snow while in "2WD mode" - why not just pop the fuse back in? Why did it need to get towed/pulled out?
officer140 is offline   Reply With Quote
Old 07-19-2010, 11:30 AM   #4
Bimmer Dude Xi
Registered User
 
Join Date: Jul 2008
Location: Staten Island, NY
Posts: 2,353
My Ride: 03 325XI 07 ZX-6R
Send a message via AIM to Bimmer Dude Xi
Quote:
Originally Posted by officer140 View Post
Actually, can someone explain this: If it's a AWD car and a fuse is pulled to make it a 2WD car, then it gets stuck in the snow while in "2WD mode" - why not just pop the fuse back in? Why did it need to get towed/pulled out?
yea that was retarded

i dunn understand how removing the fuse will make it from 4wd to 2wd, can someone please explain this?
__________________

|Dinan High Flow Air Box|Eibach Pro Kit|Koni Sport|UUC Strut Barbarian|UUC TSE3|UUC Underdrive Pulleys|18" VMR V710|

|BMC Race Air Filter|CRG Spectrum Levers| Galfer Steel Braided Brake Lines|Volar Motorsport Spiked Frame & Bar-end Sliders|
Bimmer Dude Xi is offline   Reply With Quote
Old 07-19-2010, 12:18 PM   #5
Rocko123
Registered User
 
Join Date: Apr 2010
Location: New Jersey
Posts: 906
My Ride: E92 335i
a pull of a fuse.... common really? (not trying)
__________________
- R O C K O 1 2 3 -

Rocko123 is offline   Reply With Quote
Old 07-19-2010, 09:41 PM   #6
mrshelley
Registered User
 
Join Date: May 2004
Location: Bethlehem, PA
Posts: 916
My Ride: 2004 330i
I'd just put a switch on the dash. 4WD is up and 2WD is down. If you pull the fuse next to the (2WD/4WD fuse) then you can get 4WD Lo. That is really helpful for when you are trying to pull out a stump with your 325xi.

One other trick, if you push the shifter really hard while in first gear, you'll get a granny low first. That works really well on an oak or redwood stump.
__________________
mrshelley is offline   Reply With Quote
Old 07-12-2012, 06:24 AM   #7
Mitchez22256
Registered User
 
Join Date: Jan 2012
Location: Quebec
Posts: 21
My Ride: 330xi 2005
Bmw xi ratio is 32:68? Anyway so if you take out this fuse do you really become 00:100? Or 10:90...... So you can makes some drift or burns with a manual transmission ?

It is very interesting I want To
Know more ..effects on the car?

Last edited by Mitchez22256; 07-13-2012 at 04:55 AM.
Mitchez22256 is offline   Reply With Quote
Old 07-12-2012, 09:31 AM   #8
hassmaschine
Registered User
 
Join Date: Sep 2011
Location: Ferndale, WA
Posts: 198
My Ride: '91 325ix
no, it won't make the car 2WD. the xi has a mechanical transfercase, there's no way to decouple it. the torque split is also not adjustable, it's 100% fixed mechanically.

all it does is disable the ABS system which is what prevents the wheels with the least traction from getting all the torque. basically the E46 xi uses the ABS sytem to provide the transfercase with a bias torque. all you're doing by disabling it is making the transfercase an "open" differential.

Last edited by hassmaschine; 07-12-2012 at 09:33 AM.
hassmaschine is offline   Reply With Quote
Old 07-12-2012, 08:49 PM   #9
SPL15
Registered User
 
Join Date: May 2012
Location: West Michigan
Posts: 147
My Ride: 01 325i Auto :/
Quote:
Originally Posted by hassmaschine View Post
no, it won't make the car 2WD. the xi has a mechanical transfercase, there's no way to decouple it. the torque split is also not adjustable, it's 100% fixed mechanically.

all it does is disable the ABS system which is what prevents the wheels with the least traction from getting all the torque. basically the E46 xi uses the ABS sytem to provide the transfercase with a bias torque. all you're doing by disabling it is making the transfercase an "open" differential.
^ x2. It's an 'all wheel drive' system, the center differential is not locked like on an actual 4 wheel drive on a truck or older SUV. Without the traction control you have a 1 wheel drive system
__________________
E36 M3 :) - RIP :(
E46 325i :/ - Throttle doesn't go down far enough...
SPL15 is offline   Reply With Quote
Old 07-13-2012, 04:41 AM   #10
Mitchez22256
Registered User
 
Join Date: Jan 2012
Location: Quebec
Posts: 21
My Ride: 330xi 2005
If you look carefully at the video , only the rwd spins when he is jammed , why , and they are 2 older posts in this tread that one say's he got a switch and another(#1) said that he tried and It works , what happen whit you guys is the car dead? Haha

Last edited by Mitchez22256; 07-13-2012 at 04:58 AM.
Mitchez22256 is offline   Reply With Quote
Old 07-13-2012, 01:10 PM   #11
hassmaschine
Registered User
 
Join Date: Sep 2011
Location: Ferndale, WA
Posts: 198
My Ride: '91 325ix
the rear wheels are spinning because they have the least amount of traction for the torque they're given. that's all there is to it. if the front wheels were on something slippery, they would spin and the car would go nowhere.

the E46 xi system is already not that great, disabling the only thing that keeps it from total suckage (DSC/ABS) is the worst idea ever.
hassmaschine is offline   Reply With Quote
Old 07-18-2012, 02:08 AM   #12
TerraPhantm
Registered User
 
Join Date: Feb 2008
Location: Mountain Top
Posts: 5,978
My Ride: 2005 M3 Coupe
The e46xi transfer case is essentially an open diff. So with traction control completely disabled, the axle with the least resistance is the one that will spin. It is a fairly primitive awd system
__________________
TerraPhantm is offline   Reply With Quote
Old 07-18-2012, 09:35 AM   #13
Pierce1
Registered User
 
Join Date: Nov 2010
Location: LaConner WA.
Posts: 283
My Ride: 03 330xi
Quote:
Originally Posted by TerraPhantm View Post
The e46xi transfer case is essentially an open diff. So with traction control completely disabled, the axle with the least resistance is the one that will spin. It is a fairly primitive awd system
Yea, no viscous coupled transfer case like the venerable 325ix.
Pierce1 is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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
Censor is OFF





All times are GMT -5. The time now is 08:39 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use