M Performance Mechanical limited slip differential (LSD)

kyleb350 · 06-10-2014, 03:58 PM

Any idea why BMW is holding back on ones for manual transmissions? Do they need beefier ones due to the possible shock that can be induced by dropping the clutch?

Dog Face Pony Soldier · 06-10-2014, 04:13 PM

Quote:

Originally Posted by kyleb350

Any idea why BMW is holding back on ones for manual transmissions? Do they need beefier ones due to the possible shock that can be induced by dropping the clutch?

Probably just the different final drive gear...

oceanview · 06-11-2014, 02:46 PM

Quote:

Originally Posted by DVC

I have an appt. to get this LSD installed next Friday... $2698 (+tax) installed at Flemington BMW.

Quote:

Originally Posted by glennQNYC

$2886.86 installed (including sales tax) makes this upgrade even more tempting. Although my bank account curses you DVC, I appreciate the info!

Got a quote today for $ 4600.- (installed incl. VAT) from a german dealership.
(He even quoted a higher Price for the blank part, then listed in the official BMW Price sheet on their Website)

Haven't even asked my swiss dealer, as they are usually 30% higher in price.
I mean, for like $ 3500.- I would be all in...

I'm jealous...

shivaswrath · 06-17-2014, 09:24 AM

Quote:

Originally Posted by DVC

Not surprising... The 500 mile recommendation is probably akin to BMW's recommendation for a 1200 mile initial car break-in.

Any resources you know of for best practice clutch LSD break-in?

** Edit: Here's an interesting break-in procedure doc...

20 figure 8's??!!
Where the hell am I going to do this without getting a ticket, lol!

I'll post impressions in separate thread.

DVC · 06-18-2014, 07:52 PM

Quote:

Originally Posted by shivaswrath

20 figure 8's??!!
Where the hell am I going to do this without getting a ticket, lol!

I'll post impressions in separate thread.

The turning radius on our cars is actually much tighter than you'd think. The Home Depot parking lot next to my dealer was more than adequate, as I really only needed a few parking spaces across two isles.

BimmerBoomer · 06-18-2014, 08:20 PM

Quote:

Originally Posted by DVC

The snow... another area of improved traction I am looking forward to ; )

I still expect that the xDrive will do better in the snow, and launch better in general. But the LSD should get the nod for the track, and when you add in the cost of an obligatory Dinan (or other third party) suspension for the XDrive for really quick driving the LSD pricing looks more reasonable.

abe12345 · 11-12-2014, 12:38 PM

zzz any more news

DVC · 11-12-2014, 01:09 PM

Quote:

Originally Posted by abe12345

zzz any more news

News of what? The MP LSD has been available for almost 6 months...

And it's awesome, by the way : )

abe12345 · 11-12-2014, 01:14 PM

Did anyone review it haha? How much did it end up costing you?

DVC · 11-12-2014, 01:53 PM

Quote:

Originally Posted by abe12345

Did anyone review it haha? How much did it end up costing you?

Cost is covered in this thread (back on page 2 I think) Review, I think Jetbill and I covered that also in this thread on page 3.

abe12345 · 07-06-2015, 12:48 PM

I'm trying to get this installed but dealer is quoting me $1000 just for labor!?!? They mentioned that there is programming involved, have you guys had to have your car reprogrammed to work with the part?

Daftasabrush · 07-06-2015, 01:38 PM

Quote:

Originally Posted by abe12345

I'm trying to get this installed but dealer is quoting me $1000 just for labor!?!? They mentioned that there is programming involved, have you guys had to have your car reprogrammed to work with the part?

The official documentation States that no coding is required.

abe12345 · 07-07-2015, 02:01 AM

Do you have a link to the official documentation? I could only find stuff on this forum, nothing directly from BMW sources...

shivaswrath · 07-07-2015, 02:18 PM

There's no programming, they are full of shit. Go somewhere else.
It's purely mechanical.
it's probably a few hundred to drop and reinstall the LSD...2.5 hours labor is what a BMW dealership quoted me ($160 an hour X2.5).

F32Fleet · 07-08-2015, 06:37 AM

I've read no programming and been told there is programming. In any case your quote is ridiculous.

Daftasabrush · 07-08-2015, 06:41 AM

http://f30.bimmerpost.com/forums/sho...d.php?t=982938

MTHX · 07-08-2015, 07:59 AM

It is possible or to install a M Performance Mechanical limited slip differential on a 335 Xdrive edition 2015?

Feddersen · 07-08-2015, 01:05 PM

Quote:

Originally Posted by F32Fleet

I've read no programming and been told there is programming. In any case your quote is ridiculous.

I got my MLSD installed in march this year and did participate in the operation and they DID code the car after installation.

Polo08816 · 07-08-2015, 01:14 PM

I'm probably going to go the Quaife route when it comes to a LSD. My understanding is that the M Performance LSD is a clutch based design which will require rebuilds over the lifetime of the vehicle.

F32Fleet · 07-08-2015, 01:37 PM

Quote:

Originally Posted by Polo08816

I'm probably going to go the Quaife route when it comes to a LSD. My understanding is that the M Performance LSD is a clutch based design which will require rebuilds over the lifetime of the vehicle.

Correct, however unlike the Quaife when tracking the car you won't loose traction if a rear wheel gets airborne. Wavetrac on the other hand is a mechanical that won't do it either.

The reality however is that tracking only a couple of times a year this clutch type LSD might not need a rebuild until 80k miles.

shivaswrath · 07-08-2015, 09:53 PM

Quote:

Originally Posted by F32Fleet

I've read no programming and been told there is programming. In any case your quote is ridiculous.

That's what I paid, what's so ridiculous? There's no coding. I've driven it and tracked it for thousands of miles without a coding...

F32Fleet · 07-09-2015, 06:26 AM

Quote:

Originally Posted by shivaswrath

That's what I paid, what's so ridiculous? There's no coding. I've driven it and tracked it for thousands of miles without a coding...

Oops..I didn't quote the poster or we posted at around the same time.. I was speaking to the $1k install price. Btw...how does the car feel now?

06-10-2014, 03:58 PM	#67
kyleb350 Brigadier General 424 Rep 4,709 Posts Drives: '21 X3MC Join Date: Jun 2008 Location: Milwaukee iTrader: (6)	Any idea why BMW is holding back on ones for manual transmissions? Do they need beefier ones due to the possible shock that can be induced by dropping the clutch?
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11-12-2014, 12:38 PM	#73
abe12345 Private 8 Rep 91 Posts Drives: 2013 F30 335i M-Sport Manual Join Date: Oct 2012 Location: Bay Area, CA, USA iTrader: (0)	zzz any more news
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11-12-2014, 01:14 PM	#75
abe12345 Private 8 Rep 91 Posts Drives: 2013 F30 335i M-Sport Manual Join Date: Oct 2012 Location: Bay Area, CA, USA iTrader: (0)	Did anyone review it haha? How much did it end up costing you?
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07-06-2015, 12:48 PM	#77
abe12345 Private 8 Rep 91 Posts Drives: 2013 F30 335i M-Sport Manual Join Date: Oct 2012 Location: Bay Area, CA, USA iTrader: (0)	I'm trying to get this installed but dealer is quoting me $1000 just for labor!?!? They mentioned that there is programming involved, have you guys had to have your car reprogrammed to work with the part?
	Appreciate 0 Quote

07-07-2015, 02:01 AM	#79
abe12345 Private 8 Rep 91 Posts Drives: 2013 F30 335i M-Sport Manual Join Date: Oct 2012 Location: Bay Area, CA, USA iTrader: (0)	Do you have a link to the official documentation? I could only find stuff on this forum, nothing directly from BMW sources...
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07-07-2015, 02:18 PM	#80
shivaswrath Brigadier General 649 Rep 4,323 Posts Drives: 2012 335i Join Date: Apr 2008 Location: Lost in NJ iTrader: (3)	There's no programming, they are full of shit. Go somewhere else. It's purely mechanical. it's probably a few hundred to drop and reinstall the LSD...2.5 hours labor is what a BMW dealership quoted me ($160 an hour X2.5). __________________ CURRENT: 2017 RS3 (miss you guys) SOLD: 2012 335i Mineral Gray M Performance Exhaust/Brakes/Suspension/LSD\|Bav Stage 1/AMP\|\|ER CP/IC/DP/OC \| Dinan CAI/N55 PWG BIG TURBO\|BMWF30.com
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07-08-2015, 06:37 AM	#81
F32Fleet Lieutenant General 3570 Rep 10,351 Posts Drives: 2015 435i Join Date: May 2005 Location: Southeastern US iTrader: (0)	I've read no programming and been told there is programming. In any case your quote is ridiculous. __________________ "Drive more, worry less. " 435i, MPPK, MPE, M-Sport Line
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07-08-2015, 06:41 AM	#82
Daftasabrush Fool 1857 Rep 3,542 Posts Drives: F31 340i Join Date: Jul 2014 Location: England iTrader: (0)	http://f30.bimmerpost.com/forums/sho...d.php?t=982938
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07-08-2015, 07:59 AM	#83
MTHX First Lieutenant 233 Rep 354 Posts Drives: 335XI MPerformance edition Join Date: Jun 2015 Location: Québec Province iTrader: (0) Garage List 2018 F90M5 [0.00]	It is possible or to install a M Performance Mechanical limited slip differential on a 335 Xdrive edition 2015?
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07-08-2015, 01:14 PM	#85
Polo08816 Brigadier General 1610 Rep 3,947 Posts Drives: 2014 335i M Sport Join Date: Sep 2010 Location: MD iTrader: (0)	I'm probably going to go the Quaife route when it comes to a LSD. My understanding is that the M Performance LSD is a clutch based design which will require rebuilds over the lifetime of the vehicle.
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