16v lsd diff rebuild - PeachParts Mercedes-Benz Forum

kiato4 · #1 03-19-2007, 01:12 AM

Has anyone here rebuilt their diff? Mine definitely has worn clutches so I want to get it rebuilt. Any idea what parts to order?(http://www.detali.ru/cat/oem_mb2.asp?TP=1&F=201034&M=102%2E983&GA=722%2E410&GM=717%2E404&L=765%2E902&CT=F&cat=500&SID=35&SGR=015&SGN=01) Also, how many clutches - and what size - should I get to increase lockup to about 40%? Thanks.

Dan16V · #2 03-21-2007, 10:22 PM

I'm going down the same road, so let me know what you find out.

The factory manual has very in-depth instructions on how to do it, though it doesn't seem to cover the LSD version...

Good luck!

kiato4 · #3 03-21-2007, 11:38 PM

Hey thanks for the reply. I really want to know part numbers and LSD instructions. I'll keep looking, but I think somebody on this board must have rebuilt their LSD.

mbdoc · #4 03-22-2007, 08:07 AM

I have built quite a few of them for racing & 10-15 for the street.

You need to replace ALL of the required friction discs & have an assortment of select fit inner discs to correctly set-up the carrier.

jhodg5ck · #5 03-22-2007, 05:30 PM

MB Doc, how did you set the carrier spacing? I've always heard you needed a special jig to get that spot on thus my reluctance to tackle diff re-building.

Jonathan

300EVIL · #6 03-22-2007, 06:37 PM

Quote:

Originally Posted by jhodg5ck

MB Doc, how did you set the carrier spacing? I've always heard you needed a special jig to get that spot on thus my reluctance to tackle diff re-building.

Jonathan

You should be able to adjust the backlash to a specific tolerance, whatever that number is. From there, paint the gear with laping compound to check that your getting proper contact.

mbdoc · #7 03-23-2007, 08:06 AM

IF you are "completely re-doing the differential then pinion set-up is required.

Adjusting the black-lash is a pain unless you have an assortment of the MANY different sizes of snap-rings.

Set-up of the clutches in the carrier is ALSO select fit.

gsxr · #8 04-10-2007, 04:56 PM

I'm in the middle of this project myself. It's very tedious for a first-time DIY'er. I had to experiment with different thickness thrust washers to get the clutch pack preload correct. I had to tear it down & re-assemble a dozen or so times, and ended up ordering 4 pairs of different size shims (ouch). In the end, new end shims +0.05mm thicker than the old ones ended up working properly. Photos are at the URL below... I have the diff re-assembled, but it's not installed in the car yet. I also need to edit the text on the photo that says I used +0.10mm thicker... I ended up changing that before final assembly.

http://www.w124performance.com/images/W124_diffs/

I didn't remove the pinion, I only replaced the seal.

gsxr · #9 05-23-2007, 05:06 PM

Update - I got the diff installed in the car. It actually works - I've got limited slip now! (I was building a LSD unit to replace my stock/open diff). I didn't replace the gears or carrier so I didn't check or adjust backlash or pattern, I just took it apart, replaced the worn out clutches, and re-assembled. So far, it's working fine, and it's quiet... my old/stock diff was starting to whine under load (noise would go away when I lifted off the accelerator).

Anyway, as I mentioned above, yes you can refresh your 190E-16 limited slip diff, if you have a lot of time and $$$ to mess with it. Plan on $300-$500 in parts and tools, if you don't already have the tools needed (see my link above for photos). I wouldn't touch the pinion seal unless it's leaking.