how to disassemble brakes of the front wheel of a 406D van from year 1975? - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 1 (permalink) Old 04-26-2010, 02:28 PM Thread Starter
BenzWorld Junior Member
Date registered: Nov 2009
Vehicle: Mercedes-Benz 207D
Location: Europe
Posts: 8
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
how to disassemble brakes of the front wheel of a 406D van from year 1975?

I have a van, Mercedes-Benz L406D from 1975, and I was venting the brakes after replacing the brake fluid, and the first two wheels went OK - these where both back and front right wheels. But the venting valve of the front left wheel was so rusted and not un-screwable that I broke the valve. And now I must somehow remove the half of the valve that is stuck in there. I thought I would unscrew the whole wheelbase, I mean the fixed part of the wheel, where brakes are, to make things easier, to be able to do it with an electric drill, which would not fit behind the wheel. So I took of the wheel, and then started unscrewing 4 nuts that I thought are holding the part.

Attached is a photo of the wheel base with 3 of the 4 nuts I tried to unscrew marked with green arrows. The 4-th nut is not visible on this photo because its hidden behind a piece of metal.

And now my problem: the 4 nuts, which are marked with green arrows, they unscrewed just a bit, so now they turn around quite easily with the 17 mm key, but they do not come off at all! They just rotate around, and the screws which are inside the nuts, they also turn around with the nuts, but nor the screw comes out, nor the nut comes off. And whats even worse: I can not even screw them back to the state when they where fixed, because turning them clockwise, also does nothing, besides turning - it doesn't fix them in place.

The red arrow points to the venting valve that I was trying to unscrew and I broke.

The blue arrow points to something that I have no idea what its for, and would be curious to know.

Any help with getting my wheel back to a working state is welcome. Even better where I can get/download/buy a service manual for this van, so I can read about such things explained? Maybe someone has a paper copy and can scan it and send me the scans?
Attached Thumbnails
Click image for larger version

Name:	wheel-406D.jpeg
Views:	40
Size:	59.6 KB
ID:	304926  
miernik is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > Vintage Mercedes-Benz

Quick Reply

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Similar Threads
Topic Author Forum Replies Last Post
how to vent the brakes on a L406DG from 1975? miernik Vintage Mercedes-Benz 1 04-23-2010 01:42 PM
how to vent the brakes on a L406DG from 1975? miernik W901-905 Sprinter 0 04-23-2010 12:32 PM
How do I disassemble the front and rear lip? dholm76 R170 SLK-Class 11 09-12-2006 06:32 PM
Power brakes out- 1975 230 samuiholidayhomes Vintage Mercedes-Benz 3 10-11-2005 05:19 AM
Strange sounds from right front wheel, no brakes. mykg4orce W201 190-Class 2 12-14-2004 11:16 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Title goes here

video goes here
description goes here. Read Full Story
For the best viewing experience please update your browser to Google Chrome