Brake Caliper Fix

sugi323CI · 10-06-2008, 06:38 AM

I replaced the black rubber bushings for the guide pins on my rear calipers. Does anyone know if I am supposed to lube the inside and outside of these bushings or if I should put an adhesive on the outside so that it sticks to the caliper and then lube the inside where the guide pin goes?

ssm1991 · 10-06-2008, 08:21 AM

Officially both BMW TIS and Bentley advice against putting any lubrication on the guide pins. But I decided to coat the pins with brake paste (anti-seize) when my front right caliper seized due to dirty pins last year. No problem so far. I guess some kinds of paste degrade the rubber, the reason it's not advised.

And no adhesive on anything.

sugi323CI · 10-06-2008, 11:45 AM

I usually use a small amount of silicone based lube on the pins because it seems that the rubber bushing sticks to them if I don't and this causes squeak. It seems that the bushings move and flex a bit within the caliper instead of having everything move just in and out on the pin. This is why I am asking about an adhesive. The old bushings were locked firmly in place but I am assuming this is from age and heat.

10-06-2008, 06:38 AM	#1
sugi323CI Registered User Join Date: Jun 2006 Location: Michigan Posts: 22 My Ride: 2000 323 Ci View My Garage	Brake Caliper Fix I replaced the black rubber bushings for the guide pins on my rear calipers. Does anyone know if I am supposed to lube the inside and outside of these bushings or if I should put an adhesive on the outside so that it sticks to the caliper and then lube the inside where the guide pin goes?

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10-06-2008, 08:21 AM	#2
ssm1991 Registered User Join Date: Jan 2007 Location: Philippines Posts: 867 My Ride: 2004 325i View My Garage	Officially both BMW TIS and Bentley advice against putting any lubrication on the guide pins. But I decided to coat the pins with brake paste (anti-seize) when my front right caliper seized due to dirty pins last year. No problem so far. I guess some kinds of paste degrade the rubber, the reason it's not advised. And no adhesive on anything.

10-06-2008, 11:45 AM	#3
sugi323CI Registered User Join Date: Jun 2006 Location: Michigan Posts: 22 My Ride: 2000 323 Ci View My Garage	I usually use a small amount of silicone based lube on the pins because it seems that the rubber bushing sticks to them if I don't and this causes squeak. It seems that the bushings move and flex a bit within the caliper instead of having everything move just in and out on the pin. This is why I am asking about an adhesive. The old bushings were locked firmly in place but I am assuming this is from age and heat.