Rusty calipers
Thread Starter
Senior Members
Joined: Nov 2004
Posts: 454
Likes: 0
From: Fort Lauderdale Florida
My Ride: 2009 550i sports, Nav, logic Best E60 yet
2004 545i, sports pkg, logic 7 steptronic, rear shade,orient blue with beige interior, blue tooth enabled Razer Phone. 2004 X5 3.0, sports pkg, stepronic, summer pkg. imola red.
2006 Mini Cooper S, manual, sports, prem pkg, nav and kitchen sink.
I was just wondering if the calipers, rusting should be covered under warranty, i have this problem on both of my 07 Bimmers, the 550 and X5. It just doesn't seem right, I keep the cars spotless but the dam calipers are rusty. What's with that anyway??????
Contributors
Joined: Feb 2006
Posts: 14,646
Likes: 0
From: NY
My Ride: 2008 Silverstone II E60 M5 2012 E70 AW X5 50i Sport w/ LCI Aero Kit and Rocker Panels
Originally Posted by jochet' post='505768' date='Dec 11 2007, 11:00 PM
I was just wondering if the calipers, rusting should be covered under warranty, i have this problem on both of my 07 Bimmers, the 550 and X5. It just doesn't seem right, I keep the cars spotless but the dam calipers are rusty. What's with that anyway??????
Senior Members
Joined: May 2007
Posts: 637
Likes: 0
From: Detroit, USA
My Ride: E46 330, E60 550 on order: Carbon Black/Natural Brown, 6MT.
Originally Posted by noonehome' post='505931' date='Dec 12 2007, 11:18 AM
Do you have a Picture of what you see? I believe the calipers on the 550 are aluminum. The 550?s rotors are steel disks with aluminum hubs.
Sorry I don't know about the X5.
Sorry I don't know about the X5.
Senior Members
Joined: Nov 2005
Posts: 1,113
Likes: 0
From: Albany, NY
My Ride: '04 545iS 6 spd, bought new via eBay, 11/05; Blk/Gry, Cold, L7, PDC, BMW Rear seatcover for pets.
First "Bumwa" was a new 1971 2002. High performance 5s since 1987. Beamer motorcycles too, currently on an 07 BMW K1200 GT; also a Moto Guzzi 1000 SP III.
Originally Posted by jochet' post='505768' date='Dec 11 2007, 11:00 PM
I was just wondering if the calipers, rusting should be covered under warranty, i have this problem on both of my 07 Bimmers, the 550 and X5. It just doesn't seem right, I keep the cars spotless but the dam calipers are rusty. What's with that anyway??????
Water oxidizes the cast iron (maybe some alloy now). Cast iron is used because it UNIFORMLY handles and sheds heat the fastest of any metal (remember that cast-iron skillet?). Other metals warp; warp=wobble. The only downside to cast iron is its unsprung weight (and I suppose, that superficial rust). You can wait for ceramic discs, someday, maybe, but hold onto your hat and wallet; they are hugely expensive and don't work well under simple loads (good for racing; lousy around town).
I suggest you drive more and fret less about rust than brake-dusted wheels.
Ray
Senior Members
Joined: May 2007
Posts: 637
Likes: 0
From: Detroit, USA
My Ride: E46 330, E60 550 on order: Carbon Black/Natural Brown, 6MT.
Originally Posted by Ray Hull' post='505993' date='Dec 12 2007, 02:10 PM
You are joking, right?
Water oxidizes the cast iron (maybe some alloy now). Cast iron is used because it UNIFORMLY handles and sheds heat the fastest of any metal (remember that cast-iron skillet?). Other metals warp; warp=wobble. The only downside to cast iron is its unsprung weight (and I suppose, that superficial rust). You can wait for ceramic discs, someday, maybe, but hold onto your hat and wallet; they are hugely expensive and don't work well under simple loads (good for racing; lousy around town).
I suggest you drive more and fret less about rust than brake-dusted wheels.
Ray
Water oxidizes the cast iron (maybe some alloy now). Cast iron is used because it UNIFORMLY handles and sheds heat the fastest of any metal (remember that cast-iron skillet?). Other metals warp; warp=wobble. The only downside to cast iron is its unsprung weight (and I suppose, that superficial rust). You can wait for ceramic discs, someday, maybe, but hold onto your hat and wallet; they are hugely expensive and don't work well under simple loads (good for racing; lousy around town).
I suggest you drive more and fret less about rust than brake-dusted wheels.
Ray
You are correct that carbon-ceramic rotors aren't cheap. It's a $23,000 option on the 911. (That's over 19 Logic 7 audio systems!
)
Senior Members
Joined: Nov 2005
Posts: 1,113
Likes: 0
From: Albany, NY
My Ride: '04 545iS 6 spd, bought new via eBay, 11/05; Blk/Gry, Cold, L7, PDC, BMW Rear seatcover for pets.
First "Bumwa" was a new 1971 2002. High performance 5s since 1987. Beamer motorcycles too, currently on an 07 BMW K1200 GT; also a Moto Guzzi 1000 SP III.
Originally Posted by iversonm' post='505999' date='Dec 12 2007, 02:23 PM
It is an alloy, as pure iron isn't very useful. It is a type of gray iron. It is used due to it's heat capacity.
You are correct that carbon-ceramic rotors aren't cheap. It's a $23,000 option on the 911. (That's over 19 Logic 7 audio systems! )
You are correct that carbon-ceramic rotors aren't cheap. It's a $23,000 option on the 911. (That's over 19 Logic 7 audio systems!
)Ray
Contributors
Joined: Feb 2006
Posts: 14,646
Likes: 0
From: NY
My Ride: 2008 Silverstone II E60 M5 2012 E70 AW X5 50i Sport w/ LCI Aero Kit and Rocker Panels
Originally Posted by iversonm' post='505999' date='Dec 12 2007, 02:23 PM
It is an alloy, as pure iron isn't very useful. It is a type of gray iron. It is used due to it's heat capacity.
You are correct that carbon-ceramic rotors aren't cheap. It's a $23,000 option on the 911. (That's over 19 Logic 7 audio systems! )
You are correct that carbon-ceramic rotors aren't cheap. It's a $23,000 option on the 911. (That's over 19 Logic 7 audio systems!
)
Senior Members
Joined: Mar 2005
Posts: 760
Likes: 0
From: Santa Barbara, CA
My Ride: 2004 545i - 6 speed manual (July 04 build), silver-grey/black, sports package std equipment (18", active roll, active steering, adaptive headlights), premium sound, bluetooth enabled, folding rear seat, lumbar, 3m hood/bumper protective film, rear tint, euro reflectors.
Originally Posted by jochet' post='505768' date='Dec 11 2007, 08:00 PM
I was just wondering if the calipers, rusting should be covered under warranty, i have this problem on both of my 07 Bimmers, the 550 and X5. It just doesn't seem right, I keep the cars spotless but the dam calipers are rusty. What's with that anyway??????
You could paint them with caliper epoxy paint and they would look much better than factory. I would suggest gray or black - black looks really clean.
Thread
Thread Starter
Forum
Replies
Last Post
jcolley
Private Member Classifieds
9
Oct 14, 2015 08:04 AM