W203 limited slip differential. Does someone?

[mw_C32]

As has been quoted already Kleemann and Quailfe do LSD's. The C63 can be ordered with LSD as part of the performance pack. Not sure why you would need an LSD with a 270 CDI though? and what would be the benefit?

The C63 can be ordered with the LSD as a standalone option without the performance pack, which is why I have one. Not that its any thing special but it was the very first one ordered this way in the UK by me last year.....

Option code 471.

Actually I'm not even sure I can tell the difference during everyday driving but it's nice to know I have one......

However let me drive one without it and I'm sure I will be able to tell the "diff" erence!!!

Mark.

 

[popuptoaster]

Thing i've found with LSD's over the years is they actually make it easier to provoke a slide, but they are far more predictable than an open diff once the car is sliding or spinning the wheels, i think the fact they make it easier to get sideways is why most manufacturers fit traction control instead these days, its more "idiot" proof.

 

[1998K]

Thing i've found with LSD's over the years is they actually make it easier to provoke a slide, but they are far more predictable than an open diff once the car is sliding or spinning the wheels, i think the fact they make it easier to get sideways is why most manufacturers fit traction control instead these days, its more "idiot" proof.

yes this is true, LSD require for sure more drive ability

 

[1998K]

As has been quoted already Kleemann and Quailfe do LSD's. The C63 can be ordered with LSD as part of the performance pack. Not sure why you would need an LSD with a 270 CDI though? and what would be the benefit?

the benefit is to have more fun cornering and avoiding loss of traction that also an C270cdi may run into if you floor the gas in lower gear.

I know well the LSD as I've one in my previous BMW ('90 cars).

 

[1998K]

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I've seen that time ago you were interested on a pourchase group for a LSD, but did you received any info on how does quaife may interface ther LSD with the factory one: as I'm aware the factory diff is equipped with a sort of el sensor plugged into and I don't know if this is related to ABS or ASR control!?
Do they keep this control?

 

[petermansell]

as per title does someone have installed one? Any input, experience and in particular how can work with ESP/ASR?

probably the factory one is provided with a connection for the sensor of ASR, so the new LSD how could be interfaced?

thanks for any input

Hi, I have a Quaife Limited slip differential along with H&R anti sway bars fitted to my CLK55 AMG. The difference over the standard setup is subtle but profound: the anti-sway bars (front stiffer by 109% and rear by 167%) have made the car stiffer at the rear and so dialled out a lot of the under-steer; and the LSD has made the the ESP much less intrusive allowing power to be applied at the limit of grip – and just beyond – and together the car is much more enjoyable when driven hard.

Just put funds aside for more rear tyres.

 

[1998K]

Hi, I have a Quaife Limited slip differential along with H&R anti sway bars fitted to my CLK55 AMG. The difference over the standard setup is subtle but profound: the anti-sway bars (front stiffer by 109% and rear by 167%) have made the car stiffer at the rear and so dialled out a lot of the under-steer; and the LSD has made the the ESP much less intrusive allowing power to be applied at the limit of grip – and just beyond – and together the car is much more enjoyable when driven hard.

Just put funds aside for more rear tyres.

it seems you are the only one with the LSD modification, at least till now

could you please describe some more drive feeling: I belive that traction control as you say is much less intrusive but if you floor during corner or starting from stationary, the rear tyres coupled by the LSD should move the rear axle, isn'it? (this at least with a car equipped with LSD and no ESP), But how it work having ESP?

Are you able to make a powerfull u-turn starting from stationary with front wheel angled and rear axle pushing like a beast? In case at least with ESP botton turned out on the consolle.

May I ask how much did you spend for LSD and installation?

thanks a lot

 

[petermansell]

The cost in total was £2400 plus VAT.

I have not tried some of the manoeuvres you describe but have driven the car hard of track and training days.

The ESP does not intervene so quickly as it would do prior to the LSD being fitted. So the car will hang on to what grip it’s got at the very limit when driving around a bend or corner/ I can feel the rear “dig in” to get grip where prior to the LSD being fitted power would have been cut by the ESP.

As I said previously it’s very subtle but profound!

 

[1998K]

Dear Petermansell thanks again for you feedback. Are you skidding with the rear in that nice photo? It's look like!

One further question please: the factory open differential should equipped with an elect connection for the car system, I don't know if it's related to ABS or ESP sensor (probably for the traction control), do you know how the Quaife LSD is connected or if they didn't used that electric plug?

Do you still own the old differential to check if there is or not this plug?

thanks again for your patience

 

[Bobby Dazzler]

Everything I've read suggests there's no issues relating to electronics. As Peter describes, TC is less intrusive, but functions the same way - just doesn't need to step in so early..

 

[miro]

as per title does someone have installed one? Any input, experience and in particular how can work with ESP/ASR?

probably the factory one is provided with a connection for the sensor of ASR, so the new LSD how could be interfaced?

thanks for any input

The simple truth is that anything below an C55 doesnt have the grunt to spin one tyre let alone 2.

You may install a CLK55 kit from AMG. It comes in a massive crate with drive shafts and a new subframe for the rear. Then you need another 150 horses in order to make it exciting. Otherwise just make sure you only ever drive on wet roads.

Never heard about any ASR changes.

 

[petermansell]

Bobby Dazzler is correct. They are no electrics with the Quaife LSD - it's purely mechanical in its operation. I didn't keep the car's old diff so can't answer on that point.

What I would say is that in all honesty I don't think I notice the LSD on any sort of road driving - even spirited driving. I only really notice it doing its thing when on track days. (Of course this may be because my driving is too timid on the road or becuase the LSD keeps the ESP from kicking in so early as would otherwise be the case.)

It’s when the car is at the limit or just beyond that you can really notice the LSD provide more grip. So when exiting a bend or corner you can put more power down than on a car not LSD equipped. In fact once of the reasons I so enjoy this car is to do with its weight and the weight transfer in track driving – just the thing some people would say why they don’t like it – and I am sure the car’s weight and LSD are two of the key ingredients to why I like it so much.

 

[tudu]

The simple truth is that anything below an C55 doesnt have the grunt to spin one tyre let alone 2.

You may install a CLK55 kit from AMG. It comes in a massive crate with drive shafts and a new subframe for the rear. Then you need another 150 horses in order to make it exciting. Otherwise just make sure you only ever drive on wet roads.

Never heard about any ASR changes.

Thanks Miro. Which goes back to my original question as to why you would want to fit an LSD to a 270 CDI? are you wishing to race or track the car, as i don't see the benefit. I push my C55 pretty hard both with ESP on and off, and have never felt the need to purchase an LSD. I can spin the tyres, push the back end out but never on the public road, and only when i want the car to do it. If its a matter of safety on the road, then sensible driving seems more beneficial to me unless you are purchasing an LSD for use on the track.

 

[1998K]

Dear Guys thanks for your help and input really appreciated.

I've had some experience both with an M5 E34 and with an 318i (E34) both equipped with LSD (the first as per factory the 318 as option), I can confirm that also LSD helped and I don't refer to track experience. Ok also with the 318 with LSD is quite funny and easy make a 180° U turn starting with angled front wheel, and you can do only with LSD, I belive you know well this.

But a part some amusing situation that may happen every time I come back in my own garage at night one rear tyre is spinning (even I really few gas), for instance this situation may happen quite often and I can confirm that no ASR/ESP (on or off) may help, only a real LSD is the way to solve the situation!

Could someone kindly confirm (looking in some Mercedes database part number) if there is or not an electronic sensor on the factory open differential?

thank a lot

 

[miro]

Could someone kindly confirm (looking in some Mercedes database part number) if there is or not an electronic sensor on the factory open differential?

thank a lot

The wiring diagram only refers to the rear wheel ABS ring. I have to conclude that there is no diff sensor. Standard stock system.

 

[1998K]

The wiring diagram only refers to the rear wheel ABS ring. I have to conclude that there is no diff sensor. Standard stock system.

Thanky you very much for the much appreciated information!

Marco