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Audi A6 The mid-sized Audi A6 model offers more room to the driver and passengers over the A4 line.
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  #1  
Old 09-15-2009, 09:13 PM
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Default Front caliper removal

I'm waiting for my Bently service manual to arrive, but will be a few days and could use some quick help. I have a 2001 A6 2.7T. I removed the 2 rubber plugs covering the caliper slide pin/bolts, but cannot seem to determine what tool to use to remove the bolts. I assumed they were hex bit, but none fit. Anyone know the answer on how to remove the caliper? I have searched all over, but cannot find THIS piece of info. Thanks in advance.
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  #2  
Old 09-15-2009, 09:30 PM
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You mean the Allen Head bolts? They're prolly 7mm which is not standard in the sets. I found one at the local Farm store (Smith's Farm/Ace hardware). Look for a local Farm &Fleet or Fleet Farm.
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  #3  
Old 09-16-2009, 09:03 AM
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Huh? There are two 21 mm bolts that you remove to remove the caliper.

Bob
  #4  
Old 09-16-2009, 09:18 AM
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Thanks for the replies. So to remove the caliper, do you remove the slide pins located behind the plastic caps or do you remove the large bolts?

Before you answer, let me tell you I am doing brake pads and rotor replacement, outer CV joint replacement and shock/struts replacement (plus timing belt, but that has no effect on this area). Parts will be here tomorrow, so I am just trying to get ahead by completing the teardown. I have done a bunch of brakes/shocks/struts etc on american cars, first time on an Audi. So given this info, which is the best way to remove the caliper?
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  #5  
Old 09-16-2009, 11:06 AM
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Either way works. I usually remove the pins and make sure things slide easily, but removing the whole assembly gives you a bit more room to work.
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Old 09-16-2009, 11:22 AM
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The large bolts hold the caliper bracket to the hub assembly. You can just remove the slide pins which in my opinion, easier to deal with. And yes they are 7mm hex bits.
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  #7  
Old 09-16-2009, 11:25 AM
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Thanks guys, that is what I needed!
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  #8  
Old 09-16-2009, 11:41 AM
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Quote:
Originally Posted by bob martin View Post
Huh? There are two 21 mm bolts that you remove to remove the caliper.

Bob
Depends on if you are talking calipers, or carriers (brackets)...
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  #9  
Old 09-16-2009, 12:49 PM
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The caliper bolts are 7mm Allen. The 21mm are the carrier bolts as HX and Jim already said it.
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  #10  
Old 09-16-2009, 03:20 PM
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Your doing allot of work under there..one little helpful hint is to spray all the road exposed bolts that you'll eventually be taking out with penitrating oil and give it some time to work..some of those bolts will almost seem welded they get so much grime and rust..that is unless you have a impact wrench
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Old 09-16-2009, 04:08 PM
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Ya can't get an impact wrench on those 21 mm bolts - not enough room..

Use the super stuff -- PB Blaster.



It dosen't hurt to add a bit of naval jelly so you can have PB & Jelly.
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  #12  
Old 09-16-2009, 08:30 PM
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Quote:
Originally Posted by NH_USA View Post
Ya can't get an impact wrench on those 21 mm bolts - not enough room..

Use the super stuff -- PB Blaster.

It dosen't hurt to add a bit of naval jelly so you can have PB & Jelly.
Lol, good stuff right there...
One of the bolts is blocked by the bleeder on top of the caliper. It's an allen head bolt, so I'm assuming that is not the one I need to be concerned with. I'm going to have to hunt down a 7mm hex bit to remove the pins. I know Germans have a reputation for great engineering, but seems like they make some of this stuff much more complicated than it needs to be. I am focusing on my TB replacement right now, parts should be here tomorrow and I want to get it done first as I need to send the tool rentals back to Blau. Hopefully my Bently will be here by the time I finish the TB job. Lot's of effort to replace a stupid TB on these cars. American cars are much easier to work on, but they don't compare to the ride and overall quality of the Audi's.
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  #13  
Old 09-17-2009, 11:40 AM
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Quote:
Originally Posted by 68jcode View Post
Lol, good stuff right there...
One of the bolts is blocked by the bleeder on top of the caliper. It's an allen head bolt, so I'm assuming that is not the one I need to be concerned with. I'm going to have to hunt down a 7mm hex bit to remove the pins. I know Germans have a reputation for great engineering, but seems like they make some of this stuff much more complicated than it needs to be. I am focusing on my TB replacement right now, parts should be here tomorrow and I want to get it done first as I need to send the tool rentals back to Blau. Hopefully my Bently will be here by the time I finish the TB job. Lot's of effort to replace a stupid TB on these cars. American cars are much easier to work on, but they don't compare to the ride and overall quality of the Audi's.
For your reference, 70% of a typical dealer income comes from maintenance, not sales... Why do you think that they make it really hard to work on?
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  #14  
Old 03-06-2010, 04:54 PM
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Default Audi A6 Quattro 2.7T

So I have been scouring and came across this thread. I think I have a similar problem since a 7MM hex will not go into anything when I am trying to remove the caliper. I have a A4 B6 and the 7MM is spot on but when I put the wrench in it just slides all they way back ( a couple of inches). When you look at it, it is completely round bolt and the the inside where the Hex goes is completely round too. I thought maybe it was stripped but it is that way on all four of the front and it too smooth to be stripped. Any thoughts?!? I have done countless brake jobs and can not figure this one out. I see the large 21MM bolts that hold the caliper to the axle hub and the triple square bolts that appear to hold the caliper assembly together (top blocked by bleeder screw). I am trying to replace the rotors and calipers but am not having any luck. Any help is appreciated!!
Thanks,
N
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  #15  
Old 06-04-2010, 10:39 AM
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Did you ever find out what to fit the round caliper bolt with? I was trying to replace my front rotors and pads yesterday and I ran into the same problem.
  #16  
Old 06-06-2010, 07:01 PM
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I stumbled onto this thread after posting mine: Replacing Front Rotors on '03 A6 4.2L

So to confirm, I need to remove the 21 mm hex head bolts to remove the caliper so I can swap the rotors. Any hints on how to get enough leverage on the upper bolt to loosen it?
  #17  
Old 06-08-2010, 01:10 PM
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OK -- you guys that think the hex is a round bolt pay attention --

I thought I had the same problem when I looked at removing the slider bolt on our Dodge Caravan brakes this weekend. My first thought was -Holy Crap I've got the same problem the Audi Forum guys were talking about. Then I got out my strong light and mirror to get a close look. I clearly saw what looked like a round hole but when I looked closer I could see thay the hex flats were down a bit deeper.

So my reccomendation is to get a good set of hex keys bothe mm and inch that go on a 3/8 drive and have at it. Sometimes the hex is cridded up a bit so you need some gente persuation to ge it in.
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Old 06-08-2010, 01:10 PM
 
 
 
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2007, 2008, brake, caliper, caravan, dodge, grand, head, hex, pin, pins, remove, slide, takes, tool


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