S-Class (W220) 1999-2006: S 320 CDI, S 320, S430, S 500, S 600

LSD question

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Old Jul 7, 2015 | 08:58 PM
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2005 S500
Question LSD question

I have an 05 s500, I know these have open diff, I was reading that AMG models like the S65 have 1.5 way LSD.

My question is can it be swapped ( im sure it can) or does it involve me messing with the STAR program to program the new gear?
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Old Jul 9, 2015 | 02:09 AM
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A LSD swap into a S500 wouldn't be very useful. The car doesn't have enough power to spin the wheels at 60 mph doing a burnout on the pavement. The car already has a LSD alternative. Brakes. But LSDs are far more complicated than open diff. I would imagine it will require the STAR system. Because the ESP will keep trying to brake the rear wheels since it doesn't get the message that there is an LSD in the back.
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Old Jul 9, 2015 | 05:58 PM
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2005 S500
Originally Posted by cybertronicify
A LSD swap into a S500 wouldn't be very useful. The car doesn't have enough power to spin the wheels at 60 mph doing a burnout on the pavement. The car already has a LSD alternative. Brakes. But LSDs are far more complicated than open diff. I would imagine it will require the STAR system. Because the ESP will keep trying to brake the rear wheels since it doesn't get the message that there is an LSD in the back.
Thats what im guessing, I really doubt anybody has done this swap, maybe in europe some one has. Personally Ive never messed with the STAR program, or even know where to buy it or else I would mess with it on my own car. the only reason Im asking is because at my local junkyard they have a s65 and I wanted to take the DIFF among other parts to experiment on my car lol
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Old Jul 9, 2015 | 10:08 PM
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It should be very easy to reprogram the computers to accept a LSD. But without a STAR diag system, its next to impossible unless you get rid of all the electronics in the car.
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Old Jul 9, 2015 | 10:22 PM
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Originally Posted by IDFWU
I have an 05 s500, I know these have open diff, I was reading that AMG models like the S65 have 1.5 way LSD.

My question is can it be swapped ( im sure it can) or does it involve me messing with the STAR program to program the new gear?
Read through this thread from Benzworld regarding a Quaife LSD swap. There are several success stories to reference from.

Bob
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Old Jul 10, 2015 | 05:55 PM
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I couldn't find any info on reprogramming car with changes of LSD model. I'd guess that updating the data card would do it, but you need online access (ie: paid license from Mercedes).
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Old Jul 11, 2015 | 01:44 AM
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Originally Posted by JoeNobody
I couldn't find any info on reprogramming car with changes of LSD model. I'd guess that updating the data card would do it, but you need online access (ie: paid license from Mercedes).
same here :/
I guess ill be the test subject lol
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Old Jul 11, 2015 | 01:51 AM
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What other goodies are in the junkyard s65?
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Old Jul 11, 2015 | 01:52 AM
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2005 S500
pretty much everything besides the front lol
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Old Jul 13, 2015 | 02:34 PM
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there is no requirement for STAR programming if you change out the LSD.
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Old Jul 13, 2015 | 03:34 PM
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2005 S500
Originally Posted by jnash
there is no requirement for STAR programming if you change out the LSD.
Does anybody know whats the gearing on the LSD for S65?
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Old Jul 14, 2015 | 02:24 AM
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But the problem is the S500 doesn't have a LSD stock, it has an open diff. So to add a S65 LSD you need STAR. That is almost guaranteed. Unless you just get rid of the whole electrical system in the car.

Last edited by cybertronicify; Jul 14, 2015 at 02:29 AM.
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Old Jul 14, 2015 | 04:19 AM
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2005 S500
I can see needing STAR for the ESP, unless the plug are the same then im sure no STAR would be needed.
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Old Jul 14, 2015 | 10:06 AM
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I don't think there are any wires for the open diff on the s500 but i'm pretty sure there are some cables and wires for the s65 lsd. And yes, ESP will be a hassle.
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Old Jul 15, 2015 | 08:01 PM
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05 CL65
Pretty sure the S65 is also an open diff. I know my CL65 came with an open diff. I installed a Quaife LSD and a LSD is a drop in with no tuning/programming required. The S65 has a completely different (much larger) differential than your S500. If I were you I'd buy a Quaife and install that. Easily the best mod I've done to my car. Even better than the tune, but then again I had a serious traction problem from the open diff which you don't with an S500.
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Old Jul 15, 2015 | 09:41 PM
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2005 S500
Originally Posted by Dr Matt
Pretty sure the S65 is also an open diff. I know my CL65 came with an open diff. I installed a Quaife LSD and a LSD is a drop in with no tuning/programming required. The S65 has a completely different (much larger) differential than your S500. If I were you I'd buy a Quaife and install that. Easily the best mod I've done to my car. Even better than the tune, but then again I had a serious traction problem from the open diff which you don't with an S500.
Really?? I would think amg would at least put a 1.5 way considering the power they make only for it to be open diff ??? that blows I really thought they would put a 1.5 way lsd in that line of cars
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Old Jul 21, 2015 | 09:31 AM
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S65 is open diff. Installing an LSD will require no programming of any kind. It is completely transparent to the cars electronics.

Installing an LSD makes the car hook better on a launch but can also contribute to more instability in inclement weather (back end can step out under hard acceleration instead of just breaking a single rear tire loose), especially with an inexperienced driver. I would assume the reason for MB not installing at the factory was to retain the stability for the 99% that drive these cars daily, in all weather. Most owners don't race.
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Old Jul 21, 2015 | 11:37 PM
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2005 S500
Originally Posted by _Ryan

Installing an LSD makes the car hook better on a launch but can also contribute to more instability in inclement weather (back end can step out under hard acceleration instead of just breaking a single rear tire loose)
Whats wrong with this? lol
Ive own a few Nissan 240's with 2-ways so im no stranger to sliding the *** end when it decides to rain lol I mean the weather and wheels break loose officer i think i hit some oil lol.

Yea I know the s500 isnt made for racing compared to other models, but it is fun sliding that *** every once in a while lol
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Old Jul 22, 2015 | 10:16 AM
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I have tried rolling burnouts on 2004 s500 and 2003 s430 the 430 cant slide. But the s50 with the 7g tronic is a neast at burnouts.

But cmon... Sliding a 5000 lb luxobarge.
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Old Jul 22, 2015 | 05:03 PM
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2005 S500
Originally Posted by cybertronicify
But cmon... Sliding a 5000 lb luxobarge.

I get bored at the lights sometimes dont judge lol
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Old Jul 23, 2015 | 12:08 AM
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Well i do random burnout launches in my E class at the lights. But S class burnout.
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Old Jul 23, 2015 | 01:48 AM
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Originally Posted by cybertronicify
Well i do random burnout launches in my E class at the lights. But S class burnout.
no one will see it coming. lol
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