Re: [MBZ] Disc Brakes- Change Pads and Rotors?
They are, every third set of pads, without fail so far. MB uses fairly thin rotors to reduce unsprung mass, frequent replacement is the trade-off. Given how well the brakes work, I have no problem. A set of rotors every 100,000 miles doesn't strike me as unreasonable. Peter
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
The frequency of change of rotors depends greatly on the type of pad used. The more aggressive the pad the less life the rotors will have. Some places advertise lifetime brake pads - that's because the rotors are being the sacrifical item. *Something* is going to wear and if the pads are lifetime, the rotors will not be. Having said that, the pads MB sells are a compromise - they dislike dealing with constant complaints about brake squealing so they sell soft brake pads - which give off a *lot* of brake dust. But they don't squeal and the service dept doesn't have to constantly explain why they are squealing. As far as selling the rotors and pads as sets - I suspect what others said about MBs desire to maximize profits has most to do with it. But there's no need to replace the rotors unless they are below the min thickness when measured with a micrometer (the easiest IMO). Larry T (67 MGB, 74 911, 78 240D, 91 300D) www.youroil.net for Oil Analysis and Weber Parts Test Results http://members.rennlist.com/oil PORSCHE POSTERS! youroil.net Weber Carb Info http://members.rennlist.com/webercarbs Porsche Road Test http://members.rennlist.com/roadtest/ . - Original Message - From: "John Peterson" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "Mercedes Discussion List" Sent: Sunday, November 12, 2006 9:25 AM Subject: [MBZ] Disc Brakes- Change Pads and Rotors? Friends, why does MB sell the pads and rotors together- is it a good thing to do these together? I was going to have the dealer do brake pads and he only does them together. Is this a money robbing exercise or is there some merit to changing both at the same time? John Peterson 1991 300D 2.5 84k Kingston, RI Royce Engler wrote: Gentlemen... I decided to replace the front disks on the shaggin wagin, ordered the new ones from Rusty, and just for fun, since I hadn't done it in a while, read the manual. Do you really have to replace the "self locking hex socket bolts" that say "one time use only"? When I did the job on my old 240D (RIP), I don't think I put in new bolts. In any case, they are not listed on Rusty's web site, which tells me it's not a high volume item. OBTW...Since switching to Mobil1, I'm up to 26MPG on my last fillup. Admittedly, the fact that the A/C is temporarily dead may have added 1 or 2, but I'm impressed. My daily commute is now 30 miles each way, all freeway, with less than 1/2 mile from the house/office to the on/off ramp. Royce Engler 1985 300TD Turbo 285K ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.1.409 / Virus Database: 268.14.3/530 - Release Date: 11/11/2006
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
For my 123 those rotors were amazingly inexpensive, too. Chris K Cayce, SC - Original Message - From: "Peter Frederick" <[EMAIL PROTECTED]> To: "Mercedes Discussion List" Sent: Sunday, November 12, 2006 12:24 PM Subject: Re: [MBZ] Disc Brakes- Change Pads and Rotors? Over the last ten years, mine go two pad changes -- on the third, the rotors are too thin. Peter ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
Over the last ten years, mine go two pad changes -- on the third, the rotors are too thin. Peter
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
Mercedes rotors are never to be turned. If they get warped or wear down, they are to be replaced. Royce Engler wrote: Rusty sells 'em separately, but I think the dealer will too...the underlying question is if you are having him do the pads, why does he insist on doing the rotor also. The only time you **have** to change rotors is when they wear down to less than minimum thickness and can't be turned. I suppose they should be turned every time you do the pads, but I generally don't. Sounds like a money robbing exercise to me Royce Engler 1985 300TD Turbo 285K -- Kaleb C. Striplin/Claremore, OK 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 87 300SDL #2, 85 380SE 5.0 Euro, 84 190D 2.2, 84 190D 2.2 #2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
they are robbing money. Disks will last thru many sets of brake pads unless you run them down to the metal and they damage the rotor. John Peterson wrote: Friends, why does MB sell the pads and rotors together- is it a good thing to do these together? I was going to have the dealer do brake pads and he only does them together. Is this a money robbing exercise or is there some merit to changing both at the same time? John Peterson 1991 300D 2.5 84k Kingston, RI -- Kaleb C. Striplin/Claremore, OK 91 300D 2.5 Turbo, 90 420SEL, 89 560SEL, 87 300SDL, 87 300SDL #2, 85 380SE 5.0 Euro, 84 190D 2.2, 84 190D 2.2 #2, 81 240D, 76 240D, 76 300D, 72 250C, 69 250 http://www.striplin.net
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
Benz rotors need to be replaced every third pad change (that is, you can run two sets of pads on them). They cannot be turned -- by the time you get them smooth, they are almost always too thin, and this will cause the pistons to seize in the calipers before the friction material is worn out on the older dual piston calipers. Not good Newer models go further, but on the W124 and earlier models, you can expect new pads every 30,000 miles or so depending on driving conditions and new rotors every 90,000 in the front. Rears should last at least twice as long. Peter
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
Friends, why does MB sell the pads and rotors together- is it a good thing to do these together? I was going to have the dealer do brake pads and he only does them together. Is this a money robbing exercise or is there some merit to changing both at the same time? It has to do with avoiding any chance of warranty callbacks. Not quite thievery, but often _completely_ unnecessary. Rotors should be replaced if they throb or are too thin or chewed up, not otherwise. -- Jim
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
It actually is a good thing to do these together considering the cost. Chances are pad and rotor sets are cheaper than they are if sold separate. Not always necessary to replace the rotors unless you are on your second or third set of pads. Also if there is considerable wear on the rotor or its warped its best to just replace it Harry 69 280 SEL 135,000 Miles 72 350SL 118,000 Miles 2004 VW Passat 4 Motion 1999 Mazda Miata -Original Message- From: [EMAIL PROTECTED] To: [EMAIL PROTECTED]; mercedes@okiebenz.com Sent: Sun, 12 Nov 2006 8:25 AM Subject: [MBZ] Disc Brakes- Change Pads and Rotors? Friends, why does MB sell the pads and rotors together- is it a good thing to do these together? I was going to have the dealer do brake pads and he only does them together. Is this a money robbing exercise or is there some merit to changing both at the same time? John Peterson 1991 300D 2.5 84k Kingston, RI Royce Engler wrote: > Gentlemen... > > I decided to replace the front disks on the shaggin wagin, ordered the new > ones from Rusty, and just for fun, since I hadn't done it in a while, read > the manual. Do you really have to replace the "self locking hex socket > bolts" that say "one time use only"? When I did the job on my old 240D > (RIP), I don't think I put in new bolts. In any case, they are not listed > on Rusty's web site, which tells me it's not a high volume item. > > OBTW...Since switching to Mobil1, I'm up to 26MPG on my last fillup. > Admittedly, the fact that the A/C is temporarily dead may have added 1 or 2, > but I'm impressed. My daily commute is now 30 miles each way, all freeway, > with less than 1/2 mile from the house/office to the on/off ramp. > > Royce Engler > 1985 300TD Turbo 285K > > > > ___ > http://www.okiebenz.com > For new parts see official list sponsor: http://www.buymbparts.com/ > For used parts email [EMAIL PROTECTED] > > To Unsubscribe or change delivery options go to: > http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com Check Out the new free AIM(R) Mail -- 2 GB of storage and industry-leading spam and email virus protection.
Re: [MBZ] Disc Brakes- Change Pads and Rotors?
Rusty sells 'em separately, but I think the dealer will too...the underlying question is if you are having him do the pads, why does he insist on doing the rotor also. The only time you **have** to change rotors is when they wear down to less than minimum thickness and can't be turned. I suppose they should be turned every time you do the pads, but I generally don't. Sounds like a money robbing exercise to me Royce Engler 1985 300TD Turbo 285K -Original Message- From: John Peterson [mailto:[EMAIL PROTECTED] Sent: Sunday, November 12, 2006 8:25 AM To: [EMAIL PROTECTED]; Mercedes Discussion List Subject: Disc Brakes- Change Pads and Rotors? Friends, why does MB sell the pads and rotors together- is it a good thing to do these together? I was going to have the dealer do brake pads and he only does them together. Is this a money robbing exercise or is there some merit to changing both at the same time? John Peterson 1991 300D 2.5 84k Kingston, RI
[MBZ] Disc Brakes- Change Pads and Rotors?
Friends, why does MB sell the pads and rotors together- is it a good thing to do these together? I was going to have the dealer do brake pads and he only does them together. Is this a money robbing exercise or is there some merit to changing both at the same time? John Peterson 1991 300D 2.5 84k Kingston, RI Royce Engler wrote: Gentlemen... I decided to replace the front disks on the shaggin wagin, ordered the new ones from Rusty, and just for fun, since I hadn't done it in a while, read the manual. Do you really have to replace the "self locking hex socket bolts" that say "one time use only"? When I did the job on my old 240D (RIP), I don't think I put in new bolts. In any case, they are not listed on Rusty's web site, which tells me it's not a high volume item. OBTW...Since switching to Mobil1, I'm up to 26MPG on my last fillup. Admittedly, the fact that the A/C is temporarily dead may have added 1 or 2, but I'm impressed. My daily commute is now 30 miles each way, all freeway, with less than 1/2 mile from the house/office to the on/off ramp. Royce Engler 1985 300TD Turbo 285K ___ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
