Found a 2007 e63 rear diff. Are these the 3.06 rears and limited slips or no. Anyone have one apart? Thanks

I believe the only ones that had the LSD were out of the P30 cars, which are not very common.

This is my understanding as well.

I believe the stock ratio is 2.82 not 3.06 from what I can find.

Yes, as previously reported only the P30 package came with a LSD.
Now, if a previous owner had a Quaiffe LSD installed, you would have no way of knowing.

Go Gettem Gary!

E63 through my research has a 2.82 gearset and yes to get the 45% locking diff you need it from a confirmed P30 optioned car

Quaife locks up to 100% and is much more desirable (reflected in pricing)

If you have an 03 or early 04 you will need to upgrade rear driveshafts if you see bolts behind the boot on the drive shaft side. Pretty easy and inspect how big of a PITA it will be to upgrade to a LSD.

I hear the 10bolt LSDs are hard to find. Hence the need to upgrade to a HAG215 rear end and drive shafts

***Regardless of what you choose to build up, you will need a TCU flash otherwise ESP errors and limp mode will occur***

SRT8 ring gears can be used and swap in from my research, of which 3.06 is very popular

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Below are unconfirmed (but not argued) differential ratios:

Axle Ratios:
SL55: 2,82
E55 (Sedan and Wagon): 2,65
CLS55: 2,65
CLS63: 2,82
SL63: 3,06
SL65 BS: 3,06
E63 (Sedan and Wagon): 2,82
S55 supercharged: 2,65
CL55 supercharged: 2,65


There are 2 different families of rear axles mouted in E55/SL55/CLS55:
Up to 2004 it is HAG210-family (screwed drive shafts on the left and the right) and later it is HAG215-familiy (plugged drive shafts).


Mounting points of rear axles are the same in R230, W211 and C219.
W203, C209 and R171 have different mounting points and the do not fit in W211.
Same is with W220, C215 and W240.

This TCU flash can be performed with Xentry/Star there is a whole list of diff ratios that can be selected through coding adaptations - motor window

Will trying get some pics up

Holy skittles, useful post! Cheers buddy! Will reference this.

Can you elaborate just a tiny fraction on this?

If there is any way of getting more information about this specifically, but the topic in general, please hit me with some resources. I desperately need to do this.

Hey Jump sorry just got your message and was about to respond but I thought better to post here instead so others could benefit as well

The HAG210 rear end has a 10 bolt diff (# of bolts that hold the 2.62 gear ring onto the open diff) the 10 bolt does not have an LSD option available

The HAG215 rear end is the updated model that follows up to the later gen E55/E63/CLS55/CLS63 to my knowledge and others

The main difference is the spline count on the drive shafts for the rear being different for the diff/axle and the # of bolts on the open diff inside.

You can tell if you have a HAG210 diff if you jack your car up and look at the axle to diff juncture, you will have bolts just past the boot on the differential side of the drive shaft indicating early gen design.

If you just see diff, boot, shaft, boot, into spindle and no bolts you have HAG215

If you have a HAG210 you will need to upgrade rear axles and diff to HAG215 to get a LSD

Pretty sure I have the old style differential.

So it sounds like I could use the SRT8 ring and still squeeze in the Quaife ATB but will need halfaxles. Did I get this right?

If you have the old style (210) you will need to upgrade both the axles and the diff housing to the newer (215) unit with better gears and LSD.

FWIW, I believe the 210 and 215 refer to the ring gear diameter (in mm).

I won't be happy with the P030 LSD, I have decided I am going full ATB. That application will fit in my current housing, but the primary motivation to do the full conversion is the 3.06 ratio.

Thanks, this clarifies.

If anyone is interested the E63 I am parting out has the P30 pkg

Darn it, you're all the way in Houston.

Donor car is located in Michigan

I don't see how that car has the P030 pack, no suede or black series steering wheel, no wheels just going off that

nm

Where is this window in Star's Can't seem to find it.You here Steve K ?

Under ME -> Developer

I have a few factory refurbished AMG Performance Studio LSD for sale in case someone is interested. They all have about 5.000 miles in, where taken apart, cleaned, lubed and reassembled by the manufacturer (Drexler, Germany). PM if interested.

i have seen this screen playing around in STAR - is this is all you have to do to change the gear ratio after new diff/gears is installed or is there additional things that need to be done electronically ? thx

I am told just the Star adjustment and want to try this first. Reason being is I jumped up from 265/35/18 to 285/35/18 and the tire is .8 inches taller and did not effect anything . So I might even be able to throw the diff in and not have an issue but will be doing this at work so don't want to be stuck and have to have it towed home.

A diff swap is not being adjusted in ME. Just FYI.

This needs to be stickied.

Also for posterity: I don't know what I was thinking when I wrote my comments about P030 VS Quaife ATB.
Factory P030 Drexler design is clutch based and would be vastly superior to any given ATB*, clutch has full(ish) lockup and the ATB would still **** torque away through the spinning wheel at near-zero loads.
For my drifting purposes anyways.

* - Wavetrac is the only exception I know of that has internal wave rings that expand to combat this condition.

So if you install a wavetrac diff you need to adjust in star deceloper the selected gear ratio because stock open is 2.65 and standard wavetrac is 2.82? Do they ever come in the 2.65 format? If so how do i tell what one i have? Do I get the installer to measure something? (i dont have tools to do the job myself..)

cheers