The best upgrade for any non M series E60
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Joined: Aug 2007
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From: Boston, MA
My Ride: 2008 535i 6MT
Originally Posted by mhs525' post='858510' date='Apr 25 2009, 12:39 PM
And some 335's are now being made with the diff cover WELDED on so you can't upgrade the rear end. BOOOOOOOOOOOOOO What is BMW thinking !!!!
That they are not selling enough M3's.
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Joined: Dec 2007
Posts: 1,706
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From: Calgary, AB - Canada / Buenos Aires - Argentina
My Ride: 2006 BMW M5
Originally Posted by ObD' post='859029' date='Apr 25 2009, 10:01 PM
That they are not selling enough M3's.
"... The last production BMW to be sold with the option of a limited slip diff was the E36 328i. Since then, LSDs have been the
preserve of the fabulous M-Power cars. Unfortunately, those of us who choose a more comfortable but less extravagant and
focused BMW may well find that the standard power of the car easily overcomes the amount of traction available. This is
especially true with late cars, equipped with run-flat tires, and stiff suspension. For the first time, there is a cost effective option
for those who want to enjoy maximum acceleration performance without compromising safety or stability. We now offer the
world renowned Quaife automatic torque biasing differential for the entire BMW range. Be prepared to wonder why BMW are
not offering this amazing device...."
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Joined: Nov 2007
Posts: 1,168
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From: Boston, US
Originally Posted by miguex' post='859262' date='Apr 26 2009, 10:44 AM
Exactly!
"... The last production BMW to be sold with the option of a limited slip diff was the E36 328i. Since then, LSDs have been the
preserve of the fabulous M-Power cars. Unfortunately, those of us who choose a more comfortable but less extravagant and
focused BMW may well find that the standard power of the car easily overcomes the amount of traction available. This is
especially true with late cars, equipped with run-flat tires, and stiff suspension. For the first time, there is a cost effective option
for those who want to enjoy maximum acceleration performance without compromising safety or stability. We now offer the
world renowned Quaife automatic torque biasing differential for the entire BMW range. Be prepared to wonder why BMW are
not offering this amazing device...."
"... The last production BMW to be sold with the option of a limited slip diff was the E36 328i. Since then, LSDs have been the
preserve of the fabulous M-Power cars. Unfortunately, those of us who choose a more comfortable but less extravagant and
focused BMW may well find that the standard power of the car easily overcomes the amount of traction available. This is
especially true with late cars, equipped with run-flat tires, and stiff suspension. For the first time, there is a cost effective option
for those who want to enjoy maximum acceleration performance without compromising safety or stability. We now offer the
world renowned Quaife automatic torque biasing differential for the entire BMW range. Be prepared to wonder why BMW are
not offering this amazing device...."
The electronics will still save you if you go nuts and try and kick the rear end out.
If I never owned and M car I wouldn't realize how non M cars have been overcome by electronics and cost contained with the removal of a proper differential.
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Joined: Sep 2008
Posts: 478
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From: Sherman Oaks CA (New to: Bay Area)
My Ride: 2004 BMW 545i Sport Package, Titanium Gray II Metallic, Wheel Style 124
Originally Posted by 305bimmer' post='857752' date='Apr 24 2009, 12:45 PM
Has anyone experienced any humming with this mod? I noticed in your write-up that you didn't mention use of a feeler gage to measure the lash after the install, which is critical. If you have any uneven wear, the gears will hum and there is no way to get rid of it besides replacing it.
But if you are brave enough, make sure you tighten all the bolts that hold the ring in a sequential manner at a few lbs. of torque at a time so the gear sits flush. I have not replaced the rear end gears on an E60, but I have on other cars and this is crucial to avoiding humming, and worse, metal shavings from uneven wear.
But if you are brave enough, make sure you tighten all the bolts that hold the ring in a sequential manner at a few lbs. of torque at a time so the gear sits flush. I have not replaced the rear end gears on an E60, but I have on other cars and this is crucial to avoiding humming, and worse, metal shavings from uneven wear.
i had my rear differential replaced for humming noise at low speeds... i had 52k miles at the time, my warranty came to the rescue... if i can remember dealer estimated service was $3,000 or more ... this was the major work i had to my car and believe it or not i took it in for a Leak and i had mention if it was normal that i hear a humming noise coming from the rear. I was pleased that they found it to be the rear differential
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Joined: Sep 2005
Posts: 4,096
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by Alfonze' post='858506' date='Apr 25 2009, 06:22 PM
Quaife is 0-80% and M5 is 0-75% AFAIK, and since the quaife isnt a LSD, it have no lag. And send a mail to birdsauto, they caon tell if they have a diff for your car:-)
Birds (where I installed it in August 2007) told me 75%, I'm sure I already have his mail.
0-75% changeable.
The M-diff.. I don't know exactly, but I can ask in a few hours if a friend come on MSN
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Joined: Sep 2005
Posts: 4,096
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From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by mhs525' post='859287' date='Apr 26 2009, 05:26 PM
No electronics/traction crap interfering with the driving experience.
+1: now the spin-control light is rare: just hard corners or flat tyres.
Thread Starter
Members
Joined: Oct 2007
Posts: 113
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From: Estonia
My Ride: 2005 545iA
Straight off their PDF:
The Quaife ATB differential has to be the favourite. It has no clutches to wear out, has a lifetime warranty, and gently
massages the torque away from the spinning wheel to the one with more traction and is capable of varying the torque split
between 0 to 80%. Perfect! It is genuinely one of the very best tuning products we have ever encountered in our 30+years in
the BMW tuning industry. No wonder Autocar said "As car addicts, we cannot allow the Quaife ATB to be ignored"
The Quaife ATB differential has to be the favourite. It has no clutches to wear out, has a lifetime warranty, and gently
massages the torque away from the spinning wheel to the one with more traction and is capable of varying the torque split
between 0 to 80%. Perfect! It is genuinely one of the very best tuning products we have ever encountered in our 30+years in
the BMW tuning industry. No wonder Autocar said "As car addicts, we cannot allow the Quaife ATB to be ignored"
Senior Members
Joined: Sep 2005
Posts: 4,096
Likes: 0
From: Italy, Milano
My Ride: 545i SMG with Limited Slip Differential
Model Year: 2005
Originally Posted by Alfonze' post='860116' date='Apr 27 2009, 12:02 PM
Straight off their PDF:
The Quaife ATB differential has to be the favourite. It has no clutches to wear out, has a lifetime warranty, and gently
massages the torque away from the spinning wheel to the one with more traction and is capable of varying the torque split
between 0 to 80%. Perfect! It is genuinely one of the very best tuning products we have ever encountered in our 30+years in
the BMW tuning industry. No wonder Autocar said "As car addicts, we cannot allow the Quaife ATB to be ignored"
The Quaife ATB differential has to be the favourite. It has no clutches to wear out, has a lifetime warranty, and gently
massages the torque away from the spinning wheel to the one with more traction and is capable of varying the torque split
between 0 to 80%. Perfect! It is genuinely one of the very best tuning products we have ever encountered in our 30+years in
the BMW tuning industry. No wonder Autocar said "As car addicts, we cannot allow the Quaife ATB to be ignored"
Yes, you are the man: the last one who did this mod but the most noisy.
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Joined: Dec 2007
Posts: 1,706
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From: Calgary, AB - Canada / Buenos Aires - Argentina
My Ride: 2006 BMW M5
Originally Posted by Nightfox.Technologies' post='860230' date='Apr 27 2009, 08:17 AM
What's the Part# on this? I didn't see it on their site..
Thanks
Thanks
yes, there is: http://www.birdsauto.com/parts-database/pa...0Series%20(E60)
Rear Axle
QUAIFE ATB Diff. Conversion Kit +
Application : 550iA With Final Drive 7516923 2.93:1
Installation cost : ?425.10
Parts cost : ?829.06
Rear Axle
QUAIFE ATB Diff. Conversion Kit +
Application : 545iA With Final Drive 7516923 2.93:1
Installation cost : ?425.10
Parts cost : ?829.06
PS: I am purchasing one but I am looking a pro to install it here (Canada)...