Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)

E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

Reply
 
Thread Tools Display Modes
  #1  
Old 11-23-2012, 04:19 PM
gomolka30 gomolka30 is offline
Officially Welcomed to the 'Fest
Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
Rear brake pad compliment to OEM front

So I checked the brakes for the first time on my 3 week old purchase, and I found the rear pads to only have about 1mm remaining (or less!). The fronts are still substantially chunky, so I won't bother with them, and I suspect them to be OEM Jurids due to the bite and dust factors.

My question is, assuming the fronts are OEM, what brand would be a good compliment to the fronts? I know Textar would be the first choice (if available). Basically I would not want the friction to be substantially more or less than the Textars, and I would preferably lean towards a pad that is the most rotor friendly. Dust is not a concern of mine.

If I were to replace pads at all 4 wheels at once, I would go with the Akebonos, but since I am only doing the rears, I wonder if the Akes would create a front/rear bias.

How about the PBR D1334D? They have them at FCPEuro for only $36. Does anyone know the friction rating? and the type of compound used?
Reply With Quote
Advertisement
  #2  
Old 11-23-2012, 08:02 PM
moots's Avatar
moots moots is offline
wat's dat noise
Location: Malaysia
 
Join Date: Apr 2005
Posts: 633
Mein Auto: '04 525i
textars or jurids will do fine for the rears.they take 30% of the braking forces.generally will last 3 times longer,dust 3 times less and the discs will last 3 times longer than the fronts....

if it was for the fronts i wud go dustless pads......
__________________
Reply With Quote
  #3  
Old 11-23-2012, 09:55 PM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 22,012
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by gomolka30 View Post
I wonder if the Akes would create a front/rear bias
- What friction grade (e.g., EE, FF, EF, etc.) is recommended for BMW E39 brake pads (1) (2)
  • Jurid 187 (front) = FF
  • Textar T4071 (rear) = FF
  • Akebono Euro Ultra Premium Ceramic = GG
Given those ratings, you may be right - the Akeobonos just might grab differentially differently than the OEM pads.
__________________
Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
Reply With Quote
  #4  
Old 11-24-2012, 12:49 AM
gomolka30 gomolka30 is offline
Officially Welcomed to the 'Fest
Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
Unfortunately I don't have the luxury of time to be picky about this decision. Worst case scenario, I will get the Pro Stop brand from Pep Boys. The sales associate there told me that they were manufactured by Raybestos, are semi-metallic, and I saw an FF rating. If I can find an organic compound with an FF rating at NAPA I'll get those instead. There are also some cheap Duralast pads at Autozone. Ordering online is no longer an option.

It's more important that I get pads (any pads) before I score up my rotors.

Last edited by gomolka30; 11-24-2012 at 12:51 AM.
Reply With Quote
  #5  
Old 11-24-2012, 02:46 PM
gomolka30 gomolka30 is offline
Officially Welcomed to the 'Fest
Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
UGH, I just want to vent for a minute.

So the Pep Boys sales associate was correct about all of the specs on the pads. Only one thing, he quoted me at $47 for the set, which on a normal day is the correct price. He didn't inform me that these pads were on black friday sale for $10.99 at that time. So I go back in today to get the pads and learn about the sale, which was yesterday!!!

If he told me about the sale price I would have bought the limit, you know, just in case...... At that price, why not?

It aint the end of the world, but wouldn't you like an extra $40 in your pocket?
Reply With Quote
  #6  
Old 11-25-2012, 02:02 PM
gomolka30 gomolka30 is offline
Officially Welcomed to the 'Fest
Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
First impressions on the Pro Stop pads, the fit is not as precise as the Textars that were there before. The backing clip that holds the inside of the rear piston is not nearly as strong and the clips did not fit the piston diameter. They were too small. In hindsight I should have bent them outward for better contact. The pad backing plate also was less precise and the friction material contact area appeared to be slightly smaller than the Textars as well.

Overall, the fit of the pads were just a little bit sloppy, but it doesn't appear that this will affect braking performance. I do worry that the fit may cause noise.

One thing I was going to do against the service instructions was to lightly grease the guide bolts. I noticed that when pulling them out they had some extra deposits on them, and no grease. So why mess with a system that already works well? No thanks. I just cleaned up the guide bolts. However when you are dealing with metal-on-metal guide bolts and slides, grease is necessary (like in the front E30 carrier for Girling calipers). Also, the notch for the pad sensor may have an incorrect pad backing thickness. I didn't use a new sensor ( I don't care about brake lining warning lights). Maybe a new sensor would have a tighter fit, so I can't conclude that it is the pad's fault.

I have yet to drive the car to report on performance. I don't believe in a bedding in procedure, just drive the car carefully for the first handful of miles until they naturally bed with normal use.

Luckily all 4 Textars had about 1mm (by eye) pad material to spare. No rotor problems.
Reply With Quote
  #7  
Old 11-26-2012, 09:54 PM
gomolka30 gomolka30 is offline
Officially Welcomed to the 'Fest
Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
I'm happy to report that these pads perform close to OEM Textars. I used a high quality anti squeal compound and they are silent so far. At the price point of $47, I wouldn't recommend buying these over other similar priced options online. However, if they run another sale on these pads for $10.99, or even $24.99, I would scoop them up in a heartbeat.

The sale was for any regular Pro Stop pad set (not Premium or Ceramic), so the fronts would also have been priced at $10.99. $22 for a complete set of new brake pads? Yes please.
Reply With Quote
  #8  
Old 11-26-2012, 11:31 PM
gibo58's Avatar
gibo58 gibo58 is offline
bimmerfest Supporting Member
Location: Australia
 
Join Date: Oct 2011
Posts: 219
Mein Auto: 530i MSport
brakes

I just bought a full set of discs and pads from the dealer.

Front pads were Jurids, rear pads were Textars.

Both sets of discs has no brand name at all.

I'm a big believer in 'you get what you pay for' so those $10 pads might not last long, but only time will tell.

I went with the dealer due to cost of shipping from the US due to the weight, it would of cost more from ECS ect than the dealer over here. I get trade price so wasn't too shocked at the invoice.
Reply With Quote
  #9  
Old 11-27-2012, 10:16 AM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 22,012
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by gomolka30 View Post
It's more important that I get pads (any pads) before I score up my rotors.
Makes sense. Did you mic the rotors?

When I mic mine, I generally get two pad replacements per rotor in the rear.
- One user's example of a complete brake job with all torque figures, specs, measurements, fluids, decisions, tools, tricks, mistakes, suppliers, costs, etc., that it entails (1)

Quote:
Originally Posted by gomolka30 View Post
Pro Stop pads, the fit is not as precise as the Textars
Interesting.

Quote:
Originally Posted by gomolka30 View Post
lightly grease the guide bolts. I noticed that when pulling them out they had some extra deposits on them, and no grease.
While a prescribed brake job is almost completely dry, I literally slobbered lubricants on my pad backs and on the pins and landings - yet - each time (three total) I've replaced the pads and/or rotors - the brakes were completely dry.

So, personally, I don't think it really matters either way:
- What BMW says about brake rotor & caliper & pad lubricants (1)


Quote:
Originally Posted by gomolka30 View Post
I don't believe in a bedding in procedure
Actually, you do have a bedding-in procedure; it's just not the ten-high-speed-almost-stops bedding procedure.

Millions of brake pads are replaced by shops who likely don't perform any bedding-in procedure - so - your's is as good as mine (which is roughly similar to yours).

Quote:
Originally Posted by gibo58 View Post
I'm a big believer in 'you get what you pay for'
According to my old dusty economics textbooks covering the supply and demand curves, "you actually pay what OTHERS pay for".

In fact, IMHO, you rarely get what 'you' pay for!
- You never get what you pay for ($18 Fram oil filter)
__________________
Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need

Last edited by bluebee; 11-27-2012 at 10:19 AM.
Reply With Quote
  #10  
Old 11-27-2012, 04:35 PM
gomolka30 gomolka30 is offline
Officially Welcomed to the 'Fest
Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
No, I didn't mic the rotors, but they looked pretty good to me. The outer edge was not substantially greater than the rest of the rotor. Remember my pads were worn to only 1mm. At this point there was only minor brake vibrations in the current rotor state. If you think about it, the min rotor thickness is probably more of a warning that the caliper piston is protruding past its limit, causing vibrations between the caliper cylinder and piston due to the reduced contact area between the two. Now that my piston is seated far back into the caliper bore with the new pads, that shouldn't be an issue for a long time. I have a feeling that the rotor thickness spec is more for this reason than it is for rotor integrity. There is no way that a rotor with that much meat on it will simply just fail. It doesn't happen like that.

On another note, Pep Boys are now A+ in my book. They not only honored the black friday sale price today, but they also extended it to a set of front pads as well. They understood that the parts guy quoted me the wrong price at the time. And I don't feel that the saying "you get what you pay for" applies to this case. Remember, these pads are priced at $67/$47 F/R on any other day. This was just a one day per year special. Last year they were only $9.99 per set.

Looking at the fronts, however, they are rated FE. The compound is visually different from the rears (little bits of copper in the rear, none in the front). So I'll reiterate my recommendation, these pads are surely not the first choice at full price. But at $11 per set, they will work great to have in your garage as a back-up set if you are in a pinch. For the tame drivers out there who don't typically do hard braking, these pads will work just fine. You may not even notice any difference from OEM.

I think this is the start of a new black friday tradition

Last edited by gomolka30; 11-27-2012 at 10:26 PM.
Reply With Quote
  #11  
Old 11-27-2012, 11:47 PM
bluebee's Avatar
bluebee bluebee is offline
Seek to understand,^Value
Location: San Jose, California
 
Join Date: Mar 2008
Posts: 22,012
Mein Auto: 02 BMW 525i M54 auto 130K
Quote:
Originally Posted by gomolka30 View Post
If you think about it, the min rotor thickness is probably more of a warning that the caliper piston is protruding past its limit
I always thought it was mostly about heat dissipation - but I could be wrong.

Quote:
Originally Posted by gomolka30 View Post
I don't feel that the saying "you get what you pay for" applies to this case.
I opened up a thread today on that topic:
> E39 (1997 - 2003) > Do you really get the value of what you pay for when purchasing E39 goods & services?

Quote:
Originally Posted by gomolka30 View Post
they are rated FE
That's interesting that the hot friction is less than the cold, since 'most' pads in the referenced thread were evenly rated.
__________________
Please read the suggested threads, where the best always add value to those threads, either by pictures or by descriptions, so the next person with the same problem stands on your shoulders.
See also: E39 Bestlinks & How to easily find what you need
Reply With Quote
  #12  
Old 11-28-2012, 12:07 AM
gomolka30 gomolka30 is offline
Officially Welcomed to the 'Fest
Location: Philadelphia
 
Join Date: Nov 2012
Posts: 105
Mein Auto: 2001 530i
Quote:
Originally Posted by bluebee View Post
I always thought it was mostly about heat dissipation - but I could be wrong.
Yeah, that makes a lot of sense too. Luckily, if the driver is in tune with their car, they will be able to feel any degrading well before catastrophic failure. It's not like the rotor will disintegrate. I have heard some bad stories about pads though.



Quote:
That's interesting that the hot friction is less than the cold, since 'most' pads in the referenced thread were evenly rated.
Yeah, they probably used a cheaper compound in these pads as the volume of material is much greater than the rears. I won't know how they perform for a very long time, as I tend to get around 40-60k out of a set of pads, and my fronts look like they still have 75% life in them.
Reply With Quote
Reply

Bookmarks


Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E39 (1997 - 2003)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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 On



Forum Jump


All times are GMT -7. The time now is 11:40 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
© 2001-2011 performanceIX, Inc. All Rights Reserved .: guidelines .:. privacy .:. terms