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What does Audi use for brake caliper pin grease? #4496766
08/24/17 07:46 AM
08/24/17 07:46 AM
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
RobM Offline OP
RobM  Offline OP
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
Does anyone know what kind of grease Audi uses on their caliper pins? I know I can just get silicone paste grease, but would like to know what they actually use.

Re: What does Audi use for brake caliper pin grease? [Re: RobM] #4496801
08/24/17 08:13 AM
08/24/17 08:13 AM
Joined: May 2008
Posts: 2,090
SoCal
UG_Passat Offline
UG_Passat  Offline
Joined: May 2008
Posts: 2,090
SoCal
VW and Audi do not grease their caliper guide pins at all.


2016 VW Tiguan|APR Stage 1|Neuspeed P-Flo|Osram CBI|Redline 5w30
Re: What does Audi use for brake caliper pin grease? [Re: UG_Passat] #4496805
08/24/17 08:15 AM
08/24/17 08:15 AM
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
RobM Offline OP
RobM  Offline OP
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
Originally Posted By: UG_Passat
VW and Audi do not grease their caliper guide pins at all.


That's interesting. Dry lube?

Re: What does Audi use for brake caliper pin grease? [Re: UG_Passat] #4496810
08/24/17 08:24 AM
08/24/17 08:24 AM
Joined: Oct 2014
Posts: 1,074
SW Ontario Canada
KGMtech Offline
KGMtech  Offline
Joined: Oct 2014
Posts: 1,074
SW Ontario Canada
Originally Posted By: UG_Passat
VW and Audi do not grease their caliper guide pins at all.


I don't agree, based on my experience with VAG products. From where do you get this information?

I use ATE brand brake lube on the slider pins and on the lip of piston seal to prevent sticking as I wind back the parking brake adjuster.


2017.5 Nissan Rogue SV FWD
2013 Nissan Maxima SV
2009 Ford Flex SEL FWD
1984 Yamaha XJ750RL
Re: What does Audi use for brake caliper pin grease? [Re: RobM] #4496811
08/24/17 08:26 AM
08/24/17 08:26 AM
Joined: Dec 2005
Posts: 10,271
Upper Midwest
kschachn Online content
kschachn  Online Content
Joined: Dec 2005
Posts: 10,271
Upper Midwest
Originally Posted By: RobM
Originally Posted By: UG_Passat
VW and Audi do not grease their caliper guide pins at all.

That's interesting. Dry lube?

If it is the same as BMW then there is no lube at all, dry pins in the rubber sheath. At least on my old BMW per the MM.


1994 BMW 530i, 238K
1996 Honda Accord, 266K
1999 Toyota Sienna, 407K
2000 Toyota ECHO, 280K
Re: What does Audi use for brake caliper pin grease? [Re: RobM] #4496820
08/24/17 08:33 AM
08/24/17 08:33 AM
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
RobM Offline OP
RobM  Offline OP
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA

Re: What does Audi use for brake caliper pin grease? [Re: RobM] #4496825
08/24/17 08:39 AM
08/24/17 08:39 AM
Joined: Feb 2015
Posts: 2,359
Slovenia EU
Kamele0N Offline
Kamele0N  Offline
Joined: Feb 2015
Posts: 2,359
Slovenia EU
Lithium grease...well thats interesting...

So they are are using different typ of rubber on pins and for dust boots?

Last edited by Kamele0N; 08/24/17 08:41 AM.

2008 Toyota Yaris 1ND-TV 1.4 D4-D Elf FullTech FE 5w30
1997 Toyota Landcruiser KZJ95 3.0 TD Shell Rimula R6M 10w40
Re: What does Audi use for brake caliper pin grease? [Re: RobM] #4496832
08/24/17 08:48 AM
08/24/17 08:48 AM
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
RobM Offline OP
RobM  Offline OP
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
That's what I'm wondering now. Doesn't make sense for rubber parts.

Re: What does Audi use for brake caliper pin grease? [Re: Kamele0N] #4496835
08/24/17 08:48 AM
08/24/17 08:48 AM
Joined: Dec 2005
Posts: 10,271
Upper Midwest
kschachn Online content
kschachn  Online Content
Joined: Dec 2005
Posts: 10,271
Upper Midwest
Like many of those lubes, it is a little ambiguous whether it is intended to be used on caliper slide pins or not. At least that's the way I read it.

You are always better off following what the maintenance manual for your vehicle says rather than what it may or may not say on a tube of lubricant. I never like working on any vehicle without the FSM for this and other reasons.

What is the design of the pins and boots? My Asian vehicles which specify a pin lubricant in the FSM are the short type that only protect the exposed portion of the pin that extends out from the pad carrier. The portion of the pin that is within the carrier bore is going into a bare metal socket. On the BMW however, it is a full-length boot where it extends the entire length of the carrier bore (but interestingly the exposed portion of the pin has no boot protection). If you did grease this type of pin then the grease would be exposed to the environment unlike the design on my Asian cars. BMW compensates by giving the pins a heavy plating (looks like chrome or nickel) as opposed to the relatively light plating on the other ones.

What does rust on the BMW is the carrier bore hole in contact with the outside of the boot. That tends to compress the diameter of the hole and over time can cause the pins to stick. You need to make sure you pull the boots out of the carrier and clean up the carrier bore so it isn't reduced in diameter because of rust.

BMW brake pin boots:


Asian brake pin boots:


The above images are for my old cars, I don't know if it is the same for newer ones.


1994 BMW 530i, 238K
1996 Honda Accord, 266K
1999 Toyota Sienna, 407K
2000 Toyota ECHO, 280K
Re: What does Audi use for brake caliper pin grease? [Re: RobM] #4496847
08/24/17 09:02 AM
08/24/17 09:02 AM
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
RobM Offline OP
RobM  Offline OP
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
Yeah, I really need to buy/find a service manual. It's designed kind of like the Asian car boots.

Re: What does Audi use for brake caliper pin grease? [Re: kschachn] #4496854
08/24/17 09:18 AM
08/24/17 09:18 AM
Joined: May 2008
Posts: 2,090
SoCal
UG_Passat Offline
UG_Passat  Offline
Joined: May 2008
Posts: 2,090
SoCal
Originally Posted By: kschachn
Like many of those lubes, it is a little ambiguous whether it is intended to be used on caliper slide pins or not. At least that's the way I read it.

You are always better off following what the maintenance manual for your vehicle says rather than what it may or may not say on a tube of lubricant. I never like working on any vehicle without the FSM for this and other reasons.

What is the design of the pins and boots? My Asian vehicles which specify a pin lubricant in the FSM are the short type that only protect the exposed portion of the pin that extends out from the pad carrier. The portion of the pin that is within the carrier bore is going into a bare metal socket. On the BMW however, it is a full-length boot where it extends the entire length of the carrier bore (but interestingly the exposed portion of the pin has no boot protection). If you did grease this type of pin then the grease would be exposed to the environment unlike the design on my Asian cars. BMW compensates by giving the pins a heavy plating (looks like chrome or nickel) as opposed to the relatively light plating on the other ones.

What does rust on the BMW is the carrier bore hole in contact with the outside of the boot. That tends to compress the diameter of the hole and over time can cause the pins to stick. You need to make sure you pull the boots out of the carrier and clean up the carrier bore so it isn't reduced in diameter because of rust.

BMW brake pin boots:


Asian brake pin boots:


The above images are for my old cars, I don't know if it is the same for newer ones.


Those are the same type of boots VW/Audi uses, like the BMW ones.

If one purchased Tyrolsport metal guide bushings, they need to be greased annually per their instructions, especially the older ones that don't have a dust seal in the back.


2016 VW Tiguan|APR Stage 1|Neuspeed P-Flo|Osram CBI|Redline 5w30
Re: What does Audi use for brake caliper pin grease? [Re: kschachn] #4496862
08/24/17 09:30 AM
08/24/17 09:30 AM
Joined: Dec 2002
Posts: 42,293
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,293
New Jersey
Originally Posted By: kschachn
Like many of those lubes, it is a little ambiguous whether it is intended to be used on caliper slide pins or not. At least that's the way I read it.

You are always better off following what the maintenance manual for your vehicle says rather than what it may or may not say on a tube of lubricant. I never like working on any vehicle without the FSM for this and other reasons.

What is the design of the pins and boots? My Asian vehicles which specify a pin lubricant in the FSM are the short type that only protect the exposed portion of the pin that extends out from the pad carrier. The portion of the pin that is within the carrier bore is going into a bare metal socket. On the BMW however, it is a full-length boot where it extends the entire length of the carrier bore (but interestingly the exposed portion of the pin has no boot protection). If you did grease this type of pin then the grease would be exposed to the environment unlike the design on my Asian cars. BMW compensates by giving the pins a heavy plating (looks like chrome or nickel) as opposed to the relatively light plating on the other ones.

What does rust on the BMW is the carrier bore hole in contact with the outside of the boot. That tends to compress the diameter of the hole and over time can cause the pins to stick. You need to make sure you pull the boots out of the carrier and clean up the carrier bore so it isn't reduced in diameter because of rust.

BMW brake pin boots:


Asian brake pin boots:


The above images are for my old cars, I don't know if it is the same for newer ones.


Interesting as my E30 318i had what you classify as "Asian" boots for its calipers...

I need to look at the monster calipers on my 135i...

Re: What does Audi use for brake caliper pin grease? [Re: RobM] #4496876
08/24/17 09:54 AM
08/24/17 09:54 AM
Joined: Oct 2007
Posts: 405
Ga
DB_Cooper Offline
DB_Cooper  Offline
Joined: Oct 2007
Posts: 405
Ga
I have always lubed the brake pins on my VW/Audi cars...green grease works and I confirmed with the manufacturer it is safe with rubber or plastic parts..seems to work just fine.

In the Bentley for my Audi Cabriolet it indicates:

4 - Brake pad carrier with guide pins and protective cap
Replacement part supplied assembled with sufficient grease on guide pins

Install repair kit if protective caps are damaged

Use grease included with kit to grease guide pins

Re: What does Audi use for brake caliper pin grease? [Re: JHZR2] #4496880
08/24/17 10:00 AM
08/24/17 10:00 AM
Joined: Dec 2005
Posts: 10,271
Upper Midwest
kschachn Online content
kschachn  Online Content
Joined: Dec 2005
Posts: 10,271
Upper Midwest
Originally Posted By: JHZR2
Interesting as my E30 318i had what you classify as "Asian" boots for its calipers...

I need to look at the monster calipers on my 135i...

And I have to apologize, I was confused about where the pin boots are on my BMW. I kept saying they are located in the pad carrier, but it is actually in the caliper. After I wrote that I started doubting it and sure enough I had it wrong. The principle is the same however.





1994 BMW 530i, 238K
1996 Honda Accord, 266K
1999 Toyota Sienna, 407K
2000 Toyota ECHO, 280K
Re: What does Audi use for brake caliper pin grease? [Re: DB_Cooper] #4496898
08/24/17 10:52 AM
08/24/17 10:52 AM
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
RobM Offline OP
RobM  Offline OP
Joined: Aug 2017
Posts: 25
Cleveland, Ohio, USA
Originally Posted By: DB_Cooper
I have always lubed the brake pins on my VW/Audi cars...green grease works and I confirmed with the manufacturer it is safe with rubber or plastic parts..seems to work just fine.

In the Bentley for my Audi Cabriolet it indicates:

4 - Brake pad carrier with guide pins and protective cap
Replacement part supplied assembled with sufficient grease on guide pins

Install repair kit if protective caps are damaged

Use grease included with kit to grease guide pins



Thank you sir.

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