KentIS300

I nmy eyes a top up on the IS coolant bottle is kind of normal every few months...

It is an open system hence it will loose some droplets of coolant now and then.

Sounds like a good transformation there :) pics pics :)

on page 2 in one of my posts it says how the torsen lsd works... why do you think the lsd on your car is not working?

the mechanical torsen will only lock the diff if there is loss of traction on one of the wheels. Eitherwise the diff is going to be open and act like a non lsd one.

Thanks for posting that up on page 2, KentIS300. I should have mentioned that I did read it prior to asking my question about the degradation of a Torsen LSD. :)

Perhaps I didn't word my question properly. What I'd like to know is what is how do Torsen LSDs age/deteriorate over time? For example:

• clutch pack LSD = worn clutch and shims
  
• viscous LSD = degraded fluid
  
• Torsen LSD = ?? (worn worm gear?)
  

I'm not suggesting that the LSD in my car isn't working anymore, I'm just curious on what is the answer to the question above :)

I tihnk I had misread your post :)

I know it is a cheesy lol .... youtube clip and in French .. but you will get the understanding of the inners of the Torsen and how it works in action

It does seem that it is less prone to wear than the other two LSD's you mention. (In theory) ... worn gear would be the case as this is the only component that can fail?

even the oil, ir normal diff oil that Toyota/Lexus suggests not a special LSD oil apparently. (that's what I read online)

The Torsen differential* is a purely mechanical device; it has no electronics, clutches or viscous fluids.

­The Torsen (from Torque Sensing) works as an open differential when the amount of torque going to each wheel is equal. As soon as one wheel starts to lose traction, the difference in torque causes the gears in the Torsen differential to bind together. The design of the gears in the differential determines the torque bias ratio. For instance, if a particular Torsen differential is designed with a 5:1 bias ratio, it is capable of applying up to five times more torque to the wheel that has good traction.

These devices are often used in high-performance all-wheel-drive vehicles. Like the viscous coupling, they are often used to transfer power between the front and rear wheels. In this application, the Torsen is superior to the viscous coupling because it transfers torque to the stable wheels before the actual slipping occurs.

However, if one set of wheels loses traction completely, the Torsen differential will be unable to supply any torque to the other set of wheels. The bias ratio determines how much torque can be transferred, and five times zero is zero.

well i have lost the will to live debating about a trim that never existed in the uk line up lol

on page 2 in one of my posts it says how the torsen lsd works... why do you think the lsd on your car is not working?

the mechanical torsen will only lock the diff if there is loss of traction on one of the wheels. Eitherwise the diff is going to be open and act like a non lsd one.

Let me think if you buy a fiat Panda 1.2 with a Fiat Panda 1.4 will have the majority of this list to diffentiate them.

However if Fiat does not call it Sport and call it Dynamic ... as they usually do or Abarth!

It will not be called officially Sport.

It will be the description that some will use to describe it, sport and sporty is a broad description

Fairly rudimentary, but thought it worth an ask anyway - I'm gonna be swapping wheels over soon, and I really don't want to do one at a time, so where's the best place on the front, and on the back, to jack it up (using a trolley jack, not the scissor jack) to get the car up so both the front wheels, and then both the rear wheels, can be done at the same time?

I put my trolley jack (with a rubber kind of brick to stand it between the jack and the jacking point) if I jack the front the rear comes up as well ... so it can do two on one side... and then the other two on the other side next.

ok what would a sport model have and i mean any manufacturers sport model not just Lexus that is not in the IS300??

Hypothetically speaking, it might have been lowered, different engine tuning, firmer suspension, different alloys to differentiate from the other models ... etc.

And it would have to be a model made in mass production so to have concinstency of the spec of that named trim not a one or two examples made from dealers.

John we are talking about trim options. If you want to name a car sporty this is your right and I have no problem with that :)

But it is not a manufacturer trim for this model in this region.

Audi has sport trims as well as S-Line trims and BMW as well... as Mercedes as well depends on their marketing department and extras they want to fit on.

However Lexus never produced a sport trim in UK for the IS300 to my knowledge

mine says B04B aswell so am guessing pretty much all sport models in UK had it was this the case for IS250/ IS220d's or did they not get the special treatment from Lexus??

John IS300 never had Sport as trim...

Only a USA edition and it was call Sport Design ... never in UK though.

http://www.lexusownersclub.co.uk/forum/index.php?showtopic=3533

standing corrected :) :)

Having been, to WIM and sorted out my geometry after I lowered the car .... I can say that the car now feels like planted!

before when I was going over road imperfections ... seemed like my rear had a mind of its own and would do a little dance ... for defo could not go more than &0mph confident...

It is worth the trip, I travelled 120miles each way to go there and worth every penny :)

Welcome to the Forum :)

I am not sure of the answer, someone will come with the right reply I am sure :)

Yh that's what I thought too , I guess I need to try go do a burn out then lol, oop forgot is300 only come in auto!

Not true ... lol

SportCross IS300 come only in Auto

Saloon IS300 come in Auto or Manual (5sp) versions

I have also read that, which makes sense on why if you spin the wheels on the air they go all over the place... lol

The rear wheels while on the air will not spin in the same direction if it the LSD Diff is open.

It is not possible for it to spin in the same direction if it is open because there is nothing to lock it into place.

And that from an article :)

The Torsen differential* is a purely mechanical device; it has no electronics, clutches or viscous fluids.

­The Torsen (from Torque Sensing) works as an open differential when the amount of torque going to each wheel is equal. As soon as one wheel starts to lose traction, the difference in torque causes the gears in the Torsen differential to bind together. The design of the gears in the differential determines the torque bias ratio. For instance, if a particular Torsen differential is designed with a 5:1 bias ratio, it is capable of applying up to five times more torque to the wheel that has good traction.

These devices are often used in high-performance all-wheel-drive vehicles. Like the viscous coupling, they are often used to transfer power between the front and rear wheels. In this application, the Torsen is superior to the viscous coupling because it transfers torque to the stable wheels before the actual slipping occurs.

However, if one set of wheels loses traction completely, the Torsen differential will be unable to supply any torque to the other set of wheels. The bias ratio determines how much torque can be transferred, and five times zero is zero.

Ok my it's say bo4b too , but I e mail lexus sidcup while bk ago and they say no!

Well more likely the person who replied your email did not know what they were talking about? ... lol

I would email them again with a photo of your VIN plate and tell them what you have found out maybe?

Nope ... when the sunroof tilts there is a plastic thing that raises with it ... and blocks visibility or access...

when slid open have better view ... but no sign of rear holes :( :(

can only see the front ones through the rubber

OK took some pictures

This is where the plate is located on mine

And you should look for the 3rd group of letters/numbers on the bottom line, the one I circled with red.

You'll see numbers such as B02A, B02B, B02C

A=no LSD

B,C = LSD

In my case it is B04B hence it has LSD fitted from factory production line

If it helps ... for my car it was easier to take a pic with my phone... as the position of the plate was not the best lol

and then enlarge it on your screen. Makes it much easier... esp with the weather out there.

Yeap that is true... you check on the indentification plate on the firewall ... and it will tell you if you have LSD diff or not, mine does.

But don't expect mirracles on snow hahahaa,

Edit...

This is how, got this from another website

Look at the sticker on your driver door sill/jamb, look for the area that reads "A/TM"

You'll see numbers such as B02A, B02B, B02C

A=no LSD

B,C = LSD

And how to check it from the vin number then ?

I have the Pioneer AppRadio 2 , and it does have really good sound.

No DVD or CD ... though but at the end of the day never used them as I always connected my iPod or my Android

Frenchie the question is quite unclear though... sorry for asking.

Do you want a Fascia to fit a 2DIN radio/CD to replace the factory 2DIN unit?

Or you want a 2DIN kit to fit a 1DIN radio?

When I bought my car it came with an aftermarket 1 DIN radio fitted, and I though I needed to get a new Fascia for the 2DIN for in again.

I did not have ot buy anything as the existing fascia was for both scenarios 1DIN or 2DIN installations. This is like the one in the link below.

This is the one I used for my IS ... it does it all

http://www.caraudiod...-2001-2004.html

Hello

Halfords?

So guys do is300 really come with LSD as stand , cos when I e mail lexus sidcup they said my car don't hav one!

OK now am confused

Not all IS300 have sandard LSD, it depends on the market the car was sold. If you read on the forums you will see... there are different version.

The only way to see if the car had an LSD fitted from the production line is via the VIN plate on the firewall ...

If it does not say LSD there, then the car does not have LSD, but there is a thin possibility that the LSD might have been fitted afterward as a used unit??

Yeap that is true... you check on the indentification plate on the firewall ... and it will tell you if you have LSD diff or not, mine does.

But don't expect mirracles on snow hahahaa,

Edit...

This is how, got this from another website

Look at the sticker on your driver door sill/jamb, look for the area that reads "A/TM"

You'll see numbers such as B02A, B02B, B02C

A=no LSD

B,C = LSD

I have the same problem with my sunroof as well ...

does anyone have a picture of where the drains are placed??

I can see the two front ones ... but where on eather are the rear ones?

Also I had heard that a straightened coat hunger would to the trick and clean them... do you suggest that?