BMW 325xi 2003 automatic sedan - BMW Forum -
BMW Forum BMW Forum

Auto Insurance

» Featured Product
Wheel & Tire Center

Go Back   BMW Forum - > BMW Model Specific Forums > 3-Series (E46, E90)
Register Home Forum Active Topics Gallery / Showroom Auto Loans Garage Search Today's Posts Mark Forums Read Auto EscrowInsurance

3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d. is the premier BMW Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 06-09-2004, 09:17 PM   #1 (permalink)
Join Date: Jun 2004
Posts: 1
catj5 is an unknown quantity at this point

I recently took my automatic 2003 325xi BMW sedan to the dealer for an inspection about a whistling/squeeking sound I hear when I start the car.
When he hoisted the car up the machine and pressed on the gas, I was
VERY surprised to see that only the back wheels spun. The front wheels
were not moving at all. I forgot to ask him this issue because I was
so focused on the squeeking/whistling noise.

However, I thought all wheel drive meant all four wheels are spinning all the time
when the gas is pressed. Can anybody help me on this issue?

catj5 is offline   Reply With Quote
Sponsored Links
Old 06-16-2004, 04:12 PM   #2 (permalink)
Join Date: Apr 2004
Posts: 6
resqguy is an unknown quantity at this point
The only 4 wheel drive systems where all 4 wheels spin all the time are those that "lock" all 4 wheels and the power/torque is applied equally to all wheels. The BMW system is biased where the back wheels get most of the power and apply power to the front as needed.

With all 4 wheels off the ground I'm not sure what to expect. Did the dealer disable the traction control system?
resqguy is offline   Reply With Quote
Old 06-16-2004, 05:27 PM   #3 (permalink)
You Can Has A Custom Title!!
CiscoKid's Avatar
Join Date: Apr 2004
Location: South Jersey, USA
Posts: 2,195
CiscoKid is an unknown quantity at this point
Send a message via AIM to CiscoKid
usually rear 70% front 30%
CiscoKid is offline   Reply With Quote
Old 06-17-2004, 12:39 PM   #4 (permalink)
Join Date: Apr 2004
Posts: 4
gizzy is an unknown quantity at this point
This is due to how the differential works. Unless it is a locking differential, then power is only applied to one wheel at a time. On 4WD/AWD, the power usually will go to diagonal wheels (ie LR & RF or LR & RF) when their is no resistance. The wheels that spin are the ones with the least amout of resistence. The reason for all of this is when you go around a corner, the outside tires will spin faster than the inside tires. If the differential was locked, one of the wheels would be skidding across the surface.
gizzy is offline   Reply With Quote
Sponsored Links

  BMW Forum - > BMW Model Specific Forums > 3-Series (E46, E90)

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
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

Similar Threads
Thread Thread Starter Forum Replies Last Post
2003 325xi, Steel Gray Metallic, 5spd, 4 Sale riddei Classifieds Sell & Buy 7 10-19-2004 04:38 PM
BMW Group Sales for 2003 Stacy540i Bimmer Talk/Motorsports Talk 0 01-05-2004 01:10 PM

Powered by vBadvanced CMPS v3.2.2

All times are GMT -5. The time now is 08:40 AM.

Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.3.2
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.