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  #1  
Old 11-10-2021, 06:51 PM
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W115 Rear Axle Boot replacement

Could use the voice of experience here. My 240d's rear axle rubber boot covers are cracked. Here in the UK, we don't have the luxury of rebuilding services like CVJ or CVsource.

The axles currently work fine. No signs/ sounds of wear or grease leakage. Assuming the rubber boots need replacing without rebuilding, is this something that can be attempted without a specialist?

I've found the following MB kits. Guessing I'll need two of each?

https://www.pelicanparts.com/More_Info/1263500337.htm?pn=126-350-03-37-MBZ&SVSVSI=3197&fs=0

https://www.pelicanparts.com/More_Info/1263500237.htm?pn=126-350-02-37-MBZ&SVSVSI=3197&fs=0

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  #2  
Old 11-10-2021, 08:20 PM
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I did it on my old W123 and hated every second of it. Stretching that narrow inner side of the boot over the CV joints is the very essence of asinine frustration. I got it to work, but right at that time I had access to a parts car and just swapped in a set of good CV axles with good boots. Nothing beats those original boots.
I recommend trying with a cheap Dorman CV boot kit before going for the big bucks and risking tearing the more expensive kit that you linked.
Good luck!

Phil Forrest
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  #3  
Old 11-10-2021, 09:28 PM
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I've used the stretch boots they worked well. Did it with the Astro #7831 boot installer, it was a wrestling match to say the least but the end result was good. I'd get 5-6 stretch boots as they do tear during install. I'd also get the parts but leave it alone until it is needed.

Good luck!!!
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  #4  
Old 11-10-2021, 10:06 PM
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Quote:
Originally Posted by Screwdriva View Post
Could use the voice of experience here. My 240d's rear axle rubber boot covers are cracked. Here in the UK, we don't have the luxury of rebuilding services like CVJ or CVsource.

The axles currently work fine. No signs/ sounds of wear or grease leakage. Assuming the rubber boots need replacing without rebuilding, is this something that can be attempted without a specialist?

I've found the following MB kits. Guessing I'll need two of each?

https://www.pelicanparts.com/More_Info/1263500337.htm?pn=126-350-03-37-MBZ&SVSVSI=3197&fs=0

https://www.pelicanparts.com/More_Info/1263500237.htm?pn=126-350-02-37-MBZ&SVSVSI=3197&fs=0
You really ought to look in the repair links to see how others did it.

If your Axle has the cans on each end you have to un-crimp the cans and use a press to get the Spider off.

The only exception is that I read in one thread the guys axle slide out of the spider without a press. Don't know if that is normal on W115s or not.

After that the new can halves have to installed and the Spiders pressed back on the parts put in with grease if you use grease and the outer Can plus seal has to be installed and the inner can crimped over it.

Because of all of that and kits with the cans are expensive it is less expensive to just buy some boots that will stretch over the cans and the Stock Boots will not do that.

They have Plastic cones for stretching the boots on (what I used). No lying it will take some strength and upper body weight and I feel you need to have the Axle in a vice to do it and you need to find some lubrication for the cone that works.

Note the Cone tools and other Boot Spreaders are sold to Mechanics/Garages. In the UK you might find someplace where they will reboot the axles with the stretchy boots boots for you and not have to suffer the physical labor.

Note I have twice rebooted my rear axles so it is something I have actually done.

On my thread W123 axles:
CV Boot Installation Problems with Dorman Pneumatic and Cone type Boot Installation
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  #5  
Old 11-11-2021, 01:08 PM
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I am not sure if this is a UK company or not. https://www.stretchcvboot.com/cv-boots/

This site has a picture of a Cone to stretch the boots.

https://www.walmart.com/ip/UK-NEW-CV-Boot-Fitting-Installer-Stretch-Mount-Cone-Tool-Driveshaft-Universal/608841636

There is likely youtube videos on stretching the boots over the axle.
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Old 11-11-2021, 01:12 PM
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Amazon UK has these Flexx Boot FB3000 Small Shaft Universal CV Boot and the larger boot. You will have to ask the maker if they are for stretching.
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  #7  
Old 11-11-2021, 07:01 PM
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Thanks all - I'm not looking to switch to stretchy boots. Just want to follow the correct procedure for installing the MB supplied kits onto the axles. Sounds like it's something a drive shaft specialist will do better than we will be able to.
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  #8  
Old 11-11-2021, 09:16 PM
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Quote:
Originally Posted by Screwdriva View Post
Thanks all - I'm not looking to switch to stretchy boots. Just want to follow the correct procedure for installing the MB supplied kits onto the axles. Sounds like it's something a drive shaft specialist will do better than we will be able to.
I have a site that used to have instructions (which I posted many years ago and may be in the repair links) but that info is on my other Computer and on an older version of Word that my newer computer won't open.

On the W123s some people have said the newer stock Cans can leak in the areas/ends in the attached pics where the arrows point due to a not tight fit.
Attached Thumbnails
W115 Rear Axle Boot replacement-homokinetic-axle.jpg  
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  #9  
Old 11-12-2021, 09:58 AM
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Looks like you need a google account to access the video. However, there may be other good info as it has that you hace to take only one can off and there is some sor of snap or retaining ring on only one side of the axle. If you remove the outer can from that side and the snap=ring you can remove the spider.

On a W123 the spider needs to be pressed on and off. I thought it was the same on W115 pixlesblack009 said on benzworld that his slid of. I guess you won't know the truth till you investigate it.

W115 but the guy ULTIMATE EASY DIY OEM CV Boot replacement guide
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  #10  
Old 11-12-2021, 10:06 AM
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Re-boot axle adventures

From post #21
"Feed Back for clarification:
You've got to remove the Circlip and a Nut from the end of the Halfshaft before
the Spider with it's Ball bearings can be gently tapped off with a soft piece of
wood as a Buffer between the Rubber Hammer and the Spider?"

While I believe pixelsblack009 that this is how it worked out for him I am not sure that other axle spiders will tap off. As I said you won't know till you try.
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  #11  
Old 11-12-2021, 10:12 AM
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The boot stretching video is still around: https://www.youtube.com/watch?v=F17tFS6ofzU

The vid site came from post 5

Flexx boots won't go on, now I'm screwed

I think you are better off with a cone made for the job. If the axle is not held well it is hard to use enough force to do the stretching and there is the lubrication issue. Again the stock boots are too thick to stretch.

As you page down there is some pictures:
http://www.peachparts.com/shopforum/diesel-discussion/251366-cv-joint-removal-all-related-info-
300d.html


If for some reason you decided to stretch the boots you ay need more CV joint grease that comes in the packets. That is if you use grease. If you use Oil for sure you need to make sure the cans are well sealed on the stub shaft ends.
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Last edited by Diesel911; 11-12-2021 at 10:22 AM.
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  #12  
Old 11-13-2021, 08:06 AM
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Quote:
Originally Posted by Screwdriva View Post
I'm not looking to switch to stretchy boots.
I didn't want to go that route, either. But, following a thorough review of the alternatives, my priorities were realigned.
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  #13  
Old 11-13-2021, 03:13 PM
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Sadly, given the lack of local options, looks like I'm going to have to international post my axles to CV Source Stateside from here.
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  #14  
Old 11-15-2021, 06:53 PM
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Quote:
Originally Posted by tangofox007 View Post
I didn't want to go that route, either. But, following a thorough review of the alternatives, my priorities were realigned.
If you need some sort of press to get a part off and on it kind of decides that. I think the other issue is also expanse. Just doing the boots is cheaper compared to buying new Cans.

Another issue not mentioned is originally I replaced my Axles with Cardone rebuilt ones. The stock type boots started cracking in about 5 years. Who really knows what quality the stock type boots are being made to these days.

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Last edited by Diesel911; 11-15-2021 at 10:48 PM.
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