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Suspension & Braking
Have some questions about suspension or brake setups for your E46 BMW? Get all your answers here!

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Old 08-22-2013, 05:33 PM   #21
2003 325i
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Bmw doesn't recommend greasing the slide pins but I do, especially if you're in a climate where rust and corrosion are factors. I would use a SMALL amount on any make or model regardless of the manufacturer's suggestion.

Silicone brake caliper and dielectric grease. Clean and reapply every year or 20000km
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Does anyone have a recommendation on which is the best high performance valve stems?
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Old 08-22-2013, 05:37 PM   #22
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Well I should have specified, greasing isn't recommended on BMWs(so far what I have read of forums).

And that was not an advice Mango that was a sincere doubt I have , because that's what I understood even from the product description on amazon

"Suggested applications include disc brake caliper hardware, pistons, brushings, rubber sleeves and seals"

For pads (that's what OP mentioned he bought new) I thought CRC like compound would help better.

Again not an adivce just my doubts and views
You read that on "forums" because you read it from me. I started enforcing this a long time ago and peoples reactions (like many other topics here) were WAT?! NO! FALSE! Now it's quiet. I'm sure some others knew, but I make it known very publicly.

Regardless of what a product label says, you should always follow the specific recommendations by your manufacturer for your particular application. Product labels say this as well.
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Old 08-22-2013, 05:39 PM   #23
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Quote:
Originally Posted by 2003 325i View Post
Bmw doesn't recommend greasing the slide pins but I do, especially if you're in a climate where rust and corrosion are factors. I would use a SMALL amount on any make or model regardless of the manufacturer's suggestion.

Silicone brake caliper and dielectric grease. Clean and reapply every year or 20000km
Guide pins shouldn't rust if the bushing caps are installed. BMW does not only "doesn't recommend it," they specifically instruct NOT to do it.

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Old 08-22-2013, 06:04 PM   #24
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BMW stating not to grease the pins is cannot be likened to their lifetime fluid program. Not greasing the pins does not affect the image of the brand.
Neither has to do with branding. My point was that they're wrong more than once. Forgot about that other exposed end didn't you
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Old 08-22-2013, 06:10 PM   #25
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Neither has to do with branding. My point was that they're wrong more than once. Forgot about that other exposed end didn't you
It has everything to do with it. It's a business and marketing case pure and simple. Prior to a certain point, BMW had proper service intervals for these "lifetime" fluids. This isn't limited to BMW. Mercedes, Audi, VW have been doing this for years. It's been discussed to death for nearly a decade. Google is your friend.
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Old 08-22-2013, 06:14 PM   #26
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remanufactured calipers from ECStuning came with filled (almost overflowing) grease in the guide pin hole.. I actually opened the cap and cleaned a bit before installing.
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Old 08-22-2013, 06:42 PM   #27
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It has everything to do with it. It's a business and marketing case pure and simple. Prior to a certain point, BMW had proper service intervals for these "lifetime" fluids. This isn't limited to BMW. Mercedes, Audi, VW have been doing this for years. It's been discussed to death for nearly a decade. Google is your friend.
That's fine and good but ive never seen an ad boasting about lifetime fluid and I think you'd be hard-pressed to find a salesman that mentions it as a selling point.... likely because theyd look like a tool for saying such a preposterous thing.

Regardless... grease the pins... benefit outweighs the cost by far... just like bmw's lifetime fluids.
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Old 08-22-2013, 08:41 PM   #28
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No. Grease is NOT to be used on the caliper guide pins. Please stop giving advice.
So what should be used to lube the guide pins? Pure Lavender Honey?

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Old 08-22-2013, 08:53 PM   #29
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That's fine and good but ive never seen an ad boasting about lifetime fluid and I think you'd be hard-pressed to find a salesman that mentions it as a selling point.... likely because theyd look like a tool for saying such a preposterous thing.

Regardless... grease the pins... benefit outweighs the cost by far... just like bmw's lifetime fluids.
You obviously don't understand the way the world works. This isn't about commercial ads or sales pitches. Just... nevermind.

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So what should be used to lube the guide pins? Pure Lavender Honey?

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Nothing. No lubrication needed. Ever.
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Old 08-22-2013, 08:55 PM   #30
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remanufactured calipers from ECStuning came with filled (almost overflowing) grease in the guide pin hole.. I actually opened the cap and cleaned a bit before installing.
That's likely an anti-corrosion gel similar to "cosmoline" what BMW uses at the factory. Also comes on rotors, etc. Either way, third-parties reman parts and ship them off. No biggy. wash it out.
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Old 08-22-2013, 09:10 PM   #31
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BMW brakes need grease?

I bought oem pads and rotors put them on dry with no issues or squeaks.


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Old 08-22-2013, 10:23 PM   #32
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You obviously don't understand the way the world works. This isn't about commercial ads or sales pitches. Just... nevermind.



Nothing. No lubrication needed. Ever.
Agree to disagree. As a mechanic I will continue to use it and advise others to do so. You can keep suckling from the BMW teat.
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Old 08-23-2013, 02:03 AM   #33
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Pads

Yeah but should I still grease up the back of the pads that's the only thing I was going to grease anyway ?
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Old 08-23-2013, 11:59 AM   #34
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NO! Grease could come off and get on you pads/rotors and reduce your stopping distance. Use something specific to stop squeals. I just changed my pads and used CRC's anti-squeal on the back of the pads. Looks like a small bottle of pink goop. I put a light coat of it on the shims with a small brush and let it dry. It dries to a rubber like consistancy. 600+ miles, no squeaks.
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Old 08-23-2013, 12:07 PM   #35
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NO! Grease could come off and get on you pads/rotors and reduce your stopping distance. Use something specific to stop squeals. I just changed my pads and used CRC's anti-squeal on the back of the pads. Looks like a small bottle of pink goop. I put a light coat of it on the shims with a small brush and let it dry. It dries to a rubber like consistancy. 600+ miles, no squeaks.
+1

Use the CRC stuff they are messy but they work
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Old 08-23-2013, 01:15 PM   #36
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What's that where do you. Get that? I wonder what BMW uses when they so a brake job do you know
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Old 08-23-2013, 02:40 PM   #37
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Do NOT use the CRC stuff. I already posted advising against this.

Use this:

http://forum.e46fanatics.com/showpos...2&postcount=10
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Old 08-23-2013, 03:43 PM   #38
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What's that where do you. Get that? I wonder what BMW uses when they so a brake job do you know

Last edited by xps; 08-23-2013 at 03:44 PM.
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Old 08-23-2013, 03:46 PM   #39
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Old 08-23-2013, 05:40 PM   #40
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I got the CRC anti-squeak at Autozone and so far this stuff has worked. If at some point the brakes start to squeal I'll take the CRC stuff off with a wire brush and use something else. I would probably use what Mango suggests. FYI, I'll be the first to admit I'm not an expert on brakes, BMW's or cars in general but I do a fair amount of research before I start a project. BTW, I have to say that I have gained a lot of knowledgable by reading this forum and if I had seen what Mango suggested, I probably would have gone with that.

Last edited by HOTBMW; 08-23-2013 at 07:47 PM. Reason: syntax
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