THE LARGEST BMW 2-SERIES FORUM ON THE PLANET
2Addicts
2Addicts
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
2Addicts | BMW 2-Series forum Technical Topics B58 (M240i) Engine, Transmission, Exhaust, Tuning LSD for 18 M240i

Post Reply
 
Thread Tools Search this Thread
      07-13-2018, 01:32 PM   #1
Jerich0
Love to Drive
197
Rep
602
Posts

Drives: X4 & M4
Join Date: Jul 2009
Location: Around

iTrader: (2)

LSD for 18 M240i

Hello guys...

I am looking to add an LSD to the 18’ M240i... which one do you recommend and is the difference worth it?

Thanks!
JC
Appreciate 0
      07-13-2018, 03:53 PM   #2
dbperformance
Second Lieutenant
No_Country
159
Rep
258
Posts

Drives: None
Join Date: Aug 2015
Location: Netherlands

iTrader: (0)

Mine m240i will be deliverd this month with the M Performance LSD
Appreciate 0
      07-13-2018, 05:05 PM   #3
MarkDemma
Lieutenant
MarkDemma's Avatar
United_States
517
Rep
503
Posts

Drives: F22 M240i / E46 330Ci ZHP
Join Date: Dec 2017
Location: San Francisco

iTrader: (0)

Garage List
Quote:
Originally Posted by dannyvdberg View Post
Mine m240i will be deliverd this month with the M Performance LSD
I was told that the LSD isn't a installed at the dock option for the 2 series.
Appreciate 0
      07-13-2018, 08:43 PM   #4
Jerich0
Love to Drive
197
Rep
602
Posts

Drives: X4 & M4
Join Date: Jul 2009
Location: Around

iTrader: (2)

Thanks guys but what is there to buy right now?
Appreciate 1
chois29.50
      07-14-2018, 11:11 AM   #5
RotorOver
Newer 2er
RotorOver's Avatar
296
Rep
474
Posts

Drives: 2017 M240i (Sold)
Join Date: Jun 2016
Location: Johns Creek, GA

iTrader: (0)

Garage List
2017 BMW M240i  [10.00]
Checkout Diffsonline. They give you options to configure the diff the way you want. I went with a Wavetrac and have been very happy with it. You can also elect to drop the final drive ratio if you are so inclined. Once you install the LSD you send them your stock unit in exchange for a core deposit. Really simple. Also, Turner Motorsport offers a similar service.

Edit: Checkout this post. Recommendations from a bunch of folks.

https://www.2addicts.com/forums/show....php?t=1390045
__________________
2017 BMW M240i (Sold)
2021 F-150 Raptor
2017 Porsche 718 Cayman S
2017 Audi Q5

Last edited by RotorOver; 07-14-2018 at 11:17 AM..
Appreciate 1
WolfGTI688.50
      07-17-2018, 10:22 PM   #6
Jerich0
Love to Drive
197
Rep
602
Posts

Drives: X4 & M4
Join Date: Jul 2009
Location: Around

iTrader: (2)

Quote:
Originally Posted by RotorOver View Post
Checkout Diffsonline. They give you options to configure the diff the way you want. I went with a Wavetrac and have been very happy with it. You can also elect to drop the final drive ratio if you are so inclined. Once you install the LSD you send them your stock unit in exchange for a core deposit. Really simple. Also, Turner Motorsport offers a similar service.

Edit: Checkout this post. Recommendations from a bunch of folks.

https://www.2addicts.com/forums/show....php?t=1390045
Thank you!
JC
Appreciate 0
      08-13-2018, 02:42 PM   #7
Jerich0
Love to Drive
197
Rep
602
Posts

Drives: X4 & M4
Join Date: Jul 2009
Location: Around

iTrader: (2)

Guys, for the B58 engines I heard there was some coding to be done when installing the M Diff... does anyone know what should be coded since I am doing it in my friends shop.
Appreciate 0
      08-13-2018, 04:40 PM   #8
PeterWT
Lieutenant
PeterWT's Avatar
United_States
251
Rep
558
Posts

Drives: '17 M240i, AT, BSM
Join Date: Dec 2016
Location: Florida, USA

iTrader: (0)

Quote:
Originally Posted by Jerich0 View Post
Guys, for the B58 engines I heard there was some coding to be done when installing the M Diff... does anyone know what should be coded since I am doing it in my friends shop.
There is no coding required for the MP LSD.
__________________
My 2017 M240i: MHD, xHP, Modded OE Intake, AA GESi 400 CPSI Cat DP, Dinan Mid-pipe, M Performance LSD & Rear Diffuser, BMS Exhaust Tips, Apex EC-7 Wheels, M-Tech Front Lip, iND Painted Mirror Caps, Smoked Reflectors
Appreciate 0
      08-13-2018, 05:13 PM   #9
Jerich0
Love to Drive
197
Rep
602
Posts

Drives: X4 & M4
Join Date: Jul 2009
Location: Around

iTrader: (2)

Quote:
Originally Posted by PeterWT View Post
There is no coding required for the MP LSD.
OK thanks!... how did you like your LSD? You think its word it for a street driven car?
Appreciate 0
      08-13-2018, 06:30 PM   #10
PeterWT
Lieutenant
PeterWT's Avatar
United_States
251
Rep
558
Posts

Drives: '17 M240i, AT, BSM
Join Date: Dec 2016
Location: Florida, USA

iTrader: (0)

Quote:
Originally Posted by Jerich0 View Post
OK thanks!... how did you like your LSD? You think its word it for a street driven car?
Love it and I don't track my car. The car should come with it from the factory.
__________________
My 2017 M240i: MHD, xHP, Modded OE Intake, AA GESi 400 CPSI Cat DP, Dinan Mid-pipe, M Performance LSD & Rear Diffuser, BMS Exhaust Tips, Apex EC-7 Wheels, M-Tech Front Lip, iND Painted Mirror Caps, Smoked Reflectors
Appreciate 3
WillOs7.00
WolfGTI688.50
M_Postr36.00
      08-15-2018, 11:42 AM   #11
WolfGTI
Captain
WolfGTI's Avatar
United_States
689
Rep
908
Posts

Drives: '17 F22,15 E84 M Sport,02 R53
Join Date: Jul 2007
Location: South NJ

iTrader: (0)

Garage List
2017 BMW M240i  [0.00]
2002 MINI Cooper S  [0.00]
2015 BMW X1  [0.00]
Agreed - anything with an M designation - be it M lite (M240i/M235i) or the full M (M2/M3/M4/M5 etc.) should come with LSD standard. Bmw could differentiate between M lite and full M with a mechanical diff and M-diff which can vary lockup and slip electronically.

Quote:
Originally Posted by PeterWT View Post
Love it and I don't track my car. The car should come with it from the factory.
Appreciate 0
      08-15-2018, 06:38 PM   #12
dradernh
Brigadier General
dradernh's Avatar
4179
Rep
3,472
Posts

Drives: 2017 M240i
Join Date: Aug 2013
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by RotorOver View Post
Checkout Diffsonline. They give you options to configure the diff the way you want. I went with a Wavetrac and have been very happy with it.
Same here...diffsonline...Wavetrac...it works as advertised.

Dan has built clutch-based diffs for my track and race cars, and I recommend diffsonline highly. For sure check them out.

The helical gear-based Wavetrac that Dan built for me has made a big difference in my M240i, and I'm looking forward to what it can do for me at Mid-Ohio's handling track this weekend.
__________________
2017 M240i: 23.6K, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro;
GTechniq Crystal Serum Ultra Ceramic; Suntek PPF
Appreciate 2
Two4me24.50
WolfGTI688.50
      08-16-2018, 08:45 AM   #13
mike519
Captain
mike519's Avatar
Canada
127
Rep
832
Posts

Drives: 2018 M240i
Join Date: Apr 2012
Location: Waterloo, Ontario

iTrader: (0)

Quote:
Originally Posted by dradernh View Post
Same here...diffsonline...Wavetrac...it works as advertised.

Dan has built clutch-based diffs for my track and race cars, and I recommend diffsonline highly. For sure check them out.

The helical gear-based Wavetrac that Dan built for me has made a big difference in my M240i, and I'm looking forward to what it can do for me at Mid-Ohio's handling track this weekend.
As someone not in the know as someone like yourself, can you explain the real difference between something like the Wavetrac and the M LSD? Of course, price for one, but what is real world for someone who will not track often but just wants to put the power to the ground a little better (in a 6spd).

Also, I know if I get the BMW M LSD in there my warranty is still fine. What about with a Wavetrac or similar? Obviously the diff wouldn't be covered by BMW but would it be likely for BMW to deny ANY drivetrain warranty claim if using a non BMW diff?

Thx
Appreciate 0
      08-20-2018, 04:16 PM   #14
BallHog5873
Second Lieutenant
BallHog5873's Avatar
175
Rep
267
Posts

Drives: 997.2 Manual, 2016 328D Wagon
Join Date: May 2018
Location: Los Angeles

iTrader: (1)

Can someone explain the real world everyday advantages of having the LSD. I know what it is and how it works but for daily driving and weekend canyon runs what will it do to my drive? Will I be able to tell its even there? Is it more of a track thing? Its a pricey add on and wanna get some opinions.Thanks
Appreciate 0
      08-20-2018, 04:45 PM   #15
dradernh
Brigadier General
dradernh's Avatar
4179
Rep
3,472
Posts

Drives: 2017 M240i
Join Date: Aug 2013
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by mike519 View Post
As someone not in the know as someone like yourself, can you explain the real difference between something like the Wavetrac and the M LSD? Of course, price for one, but what is real world for someone who will not track often but just wants to put the power to the ground a little better (in a 6spd).

Also, I know if I get the BMW M LSD in there my warranty is still fine. What about with a Wavetrac or similar? Obviously the diff wouldn't be covered by BMW but would it be likely for BMW to deny ANY drivetrain warranty claim if using a non BMW diff?

Thx
Quote:
Originally Posted by BallHog5873 View Post
Can someone explain the real world everyday advantages of having the LSD. I know what it is and how it works but for daily driving and weekend canyon runs what will it do to my drive? Will I be able to tell its even there? Is it more of a track thing? Its a pricey add on and wanna get some opinions.Thanks
First, I'm no expert when it comes to diffs. As I say to my wife: if I watch an internet animation of how a particular type of limited slip diff works...well, five minutes later I can't really explain how it works, even to myself! I just think of them as black boxes.

However, I do know this - your car will do a significantly better job of putting the power down to both wheels with a limited slip diff. Where it's made a difference for me is coming out of corners, whether it's on a back road or exiting the Bus Stop at Watkins Glen. The car simply hooks up and goes. If you have a favorite corner where you're getting the most out of the car on exit, you will notice the difference after you install a LSD. Whether the cost and other issues are worth it is up to each driver.

I got the Wavetrac based upon Dan's advice. I told him it was going into a street car that would see two or three track events each year, and he said the Wavetrac was the one to get. I assume if I'd told him it was for a race car that he would again have advised a clutch-based unit, but that's just an assumption.

From my point of view, the advantage of the Wavetrac is that it doesn't require periodic rebuilds. I don't know the rebuild interval for the BMW clutch-based LSD, but I'm assuming the clutches do eventually need to be replaced. All of my clutch-based track/race LSDs eventually needed to be rebuilt; of course, they were seeing much more intense use than they would if they had been installed in a street car.

As far as the OEM warranty goes, I don't really know what the situation is. Beyond possible issues with halfshafts (axles), I'm not sure what BMW could say a non-OEM diff did that caused damage to other parts of the car. I'm not suggesting that it's not an issue, but my guess is that a properly installed non-OEM diff is unlikely to result in a legitimately denied warranty claim when that claim is otherwise valid.
__________________
2017 M240i: 23.6K, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro;
GTechniq Crystal Serum Ultra Ceramic; Suntek PPF
Appreciate 1
WillOs7.00
      10-11-2018, 08:06 AM   #16
rickd
Enlisted Member
United_States
19
Rep
39
Posts

Drives: 2017 M240i
Join Date: Aug 2017
Location: Hayward CA

iTrader: (0)

I pulled the trigger on the Wavetrac in 3.08, it's a bit pricey but I've been a good boy :-) With new bearings $600, a core charge of $600 it worked out to $3,400 so minus the core it's more like $2800 but you'll spend $500 to get it installed.
__________________
2017 M240i - BM3 Stage 2+ tune - Millway Camber plates - Dinan Midpipe - Dinan Intake - Wavetrac Diff - Bilstein B16 coilovers - Apex EC8's - Spool Ethanol sensor - TU Pump - Spec Stage 2+ clutch - E30 map - AutoTechnic Carbon fiber Trunk spoiler - RW Carbon diffuser - Front lip spoiler - Mirror caps.
Appreciate 0
      10-12-2018, 07:24 PM   #17
RotorOver
Newer 2er
RotorOver's Avatar
296
Rep
474
Posts

Drives: 2017 M240i (Sold)
Join Date: Jun 2016
Location: Johns Creek, GA

iTrader: (0)

Garage List
2017 BMW M240i  [10.00]
Quote:
Originally Posted by rickd View Post
I pulled the trigger on the Wavetrac in 3.08, it's a bit pricey but I've been a good boy :-) With new bearings $600, a core charge of $600 it worked out to $3,400 so minus the core it's more like $2800 but you'll spend $500 to get it installed.
You won’t regret it brother!
__________________
2017 BMW M240i (Sold)
2021 F-150 Raptor
2017 Porsche 718 Cayman S
2017 Audi Q5
Appreciate 2
rickd19.00
M_Postr36.00
      04-16-2020, 02:59 PM   #18
HarryCoyote
HarryCoyote
United_States
4
Rep
10
Posts

Drives: BMWM2C
Join Date: Jun 2018
Location: Fort Myers, FL

iTrader: (0)

MP LSD

Quote:
Originally Posted by PeterWT View Post
There is no coding required for the MP LSD.
I think I met you a year ago at the Sebring get together. I am in Ft. Myers. I have a black M240i. I remember you car. I am thinking of getting a MP LSD. It sure is expensive at $2630 plus $699 install at MBW dealer. Do you think it is worth it? I do not track my car. Have you had any problems? Anything I should Know? What did your LSD costs? Thanks
Appreciate 0
      04-16-2020, 06:19 PM   #19
dradernh
Brigadier General
dradernh's Avatar
4179
Rep
3,472
Posts

Drives: 2017 M240i
Join Date: Aug 2013
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by HarryCoyote View Post
I think I met you a year ago at the Sebring get together. I am in Ft. Myers. I have a black M240i. I remember you car. I am thinking of getting a MP LSD. It sure is expensive at $2630 plus $699 install at MBW dealer. Do you think it is worth it? I do not track my car. Have you had any problems? Anything I should Know? What did your LSD costs? Thanks
Your cost is on the high side, but not completely out-of-line. Here's the diff for $2,295, for example, but I imagine shipping might eat up the difference:

https://www.getbmwparts.com/oem-part...on-33108659987.

Changing the diff out takes a while, but it isn't particularly complicated, so you might check for a qualified local BMW independent shop and see what they would charge you for installation. BIMRS.org is a good place to look for such a shop (https://www.bimrs.org/), although it looks like the closest to you is a couple of hours away. Still, it might be worth a call to get an alternative installation cost.

As to whether or not it would be worth it, I'd say that if you don't track or autocross but you do enjoy exiting turns aggressively then it may be worth it to you. It can also make the car somewhat easier to manage on wet surfaces. It all depends upon how aggressively you drive the car - the more aggressively you drive, the more you'll enjoy and realize the benefits of an LSD.
__________________
2017 M240i: 23.6K, MT, Sunroof Delete, 3,432#, EB, Leather, Driving Assistance Package, Heated Front Seats | Sold: E12 530i, E24 M635CSi, E39 520i, E30 325is, E36 M3 (2)
TC Kline Coilovers; H&R Front Bar; Wavetrac; Al Subframe Bushings; 18X9/9½ ARC-8s; 255/35-18 PS4S (4); Dinan Elite V2 & CAI; MPerf Orange BBK; Schroth Quick Fit Pro;
GTechniq Crystal Serum Ultra Ceramic; Suntek PPF
Appreciate 0
      04-21-2020, 09:06 AM   #20
PeterWT
Lieutenant
PeterWT's Avatar
United_States
251
Rep
558
Posts

Drives: '17 M240i, AT, BSM
Join Date: Dec 2016
Location: Florida, USA

iTrader: (0)

Quote:
Originally Posted by HarryCoyote View Post
I think I met you a year ago at the Sebring get together. I am in Ft. Myers. I have a black M240i. I remember you car. I am thinking of getting a MP LSD. It sure is expensive at $2630 plus $699 install at MBW dealer. Do you think it is worth it? I do not track my car. Have you had any problems? Anything I should Know? What did your LSD costs? Thanks
Hi Harry, yes that was me. Hope you're well.
You will definitively feel the difference and I think it is worth it, but that is a personal, subjective opinion. The car feels more planted on corner exit and the DSC doesn't interfere as much. This is especially welcome on a tuned car with higher torque.
I have not had any problems with it.

Mine was cheaper than the prices you posted because I took advantage of a holiday sale that BMW had online and the service manager at Reeves Tampa gave me a good price on install. Diff was ~$1500 and install was ~$500.
I think ~$3300 installed is high and may not be worth it to you. But, if you wait for a sale and negotiate a lower install price, I don't think you'd regret it.
__________________
My 2017 M240i: MHD, xHP, Modded OE Intake, AA GESi 400 CPSI Cat DP, Dinan Mid-pipe, M Performance LSD & Rear Diffuser, BMS Exhaust Tips, Apex EC-7 Wheels, M-Tech Front Lip, iND Painted Mirror Caps, Smoked Reflectors
Appreciate 0
      04-25-2020, 04:53 AM   #21
Luisfcs
Registered
Luisfcs's Avatar
Portugal
0
Rep
3
Posts

Drives: M240i
Join Date: Jan 2020
Location: Lisbon

iTrader: (0)

Does anyone knows if it’s possible to put a M2 LSD on a M240i?

(I don’t have much knowledge about differentials and gearing, i just understand the differences between open and LSD, so I don’t know if it’s even possible)
Appreciate 0
      04-26-2020, 05:19 PM   #22
NISFAN
Major General
NISFAN's Avatar
United Kingdom
3486
Rep
9,709
Posts

Drives: BMW M2
Join Date: Aug 2012
Location: Bedford UK

iTrader: (0)

Quote:
Originally Posted by Luisfcs View Post
Does anyone knows if it's possible to put a M2 LSD on a M240i?

(I don't have much knowledge about differentials and gearing, i just understand the differences between open and LSD, so I don't know if it's even possible)
Technically, anything is possible. Practically, No! It's a totally different housing that would need major fabrication to fit. Sub frame, drive shafts, prop shaft all different. The Supra ELSD would be a closer fit.

But as you can buy many different flavours of mechanical LSD, why would you bother?
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -5. The time now is 10:07 AM.




2addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST