rear tire wear 2012 SLK350 - Mercedes Benz SLK Forum

Tires, Wheels, Brakes & Suspension Discussion and information regarding tires, wheels, brakes and suspension.

 25Likes
Reply
 
LinkBack Thread Tools
#1 Old 10-11-2016
Registered Users
 
Join Date: Oct 2016
Location: Austin, Texas
Vehicle: 2012 Mercedes SLK 350
Other Toys: 2 electric bikes
Posts: 11
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
(Thread Starter)
rear tire wear 2012 SLK350

I bought a certified pre owned SLK 350 in August of 2014, it had new tires on it and had just been aligned. Since then, i have replaced the rear tires 3 times and 1 new alignment. 2 sets of Pirelli and one set of Michelins. I have 18 inch wheels. I have put 16K miles on the car in a little over 2 years, and i now need to put a 4th set of rears on ! Fronts are fine. I am 69 years old, i don't drive it hard. Is 5K/set "normal" wear. How many miles are others getting on rear tires ? Other than alignment, what else can be done ?
loosej89 is offline  
Sponsored Links
Advertisement
 
#2 Old 10-11-2016
Administrator/Founding Member

 
jbanks15's Avatar
 
Join Date: Jun 2006
Location: Tampa, Florida
Vehicle: 2009 SLK 55 AMG Kleemann Supercharger, ECU tune, Headers and LSD, CF Diffuser
Posts: 91,966
Country:
Chats: 38
Mentioned: 473 Post(s)
Tagged: 5 Thread(s)
Quoted: 6579 Post(s)
Thanks: 3,246
Thanked 11,107 Times in 8,460 Posts
4 wheel alignment or tire balanced?


I have a 55 AMG so I get about 10000 per rear tire cause I burn a lot of rubber
others? about 20k i would think
WoZ53 likes this.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Jeff, US Army Master Sergeant Retired
Administrator/Founding Member
2009 SLK 55 AMG Black/Black
Kleemann Supercharger thread here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Kleemann ECU Tune, headers and downpipes thread here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Albums:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

ClearBra
OEM MB Plexiglass Draught Stop
Smarttop version 3.22
Previous - 02 SLK 320, 05 SLK 350
jbanks15 is offline  
#3 Old 10-11-2016
Registered Users
 
Join Date: Oct 2016
Location: Austin, Texas
Vehicle: 2012 Mercedes SLK 350
Other Toys: 2 electric bikes
Posts: 11
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
(Thread Starter)
I would LOVE to get 10K/ set of rear tires and i do NOT smoke them! The dealership aligns the car on their machine, i assume it is a 4 wheel alignment. I do not know the difference between wheel alignment and tire alignment ?
loosej89 is offline  
 
#4 Old 10-11-2016
Administrator/Founding Member

 
jbanks15's Avatar
 
Join Date: Jun 2006
Location: Tampa, Florida
Vehicle: 2009 SLK 55 AMG Kleemann Supercharger, ECU tune, Headers and LSD, CF Diffuser
Posts: 91,966
Country:
Chats: 38
Mentioned: 473 Post(s)
Tagged: 5 Thread(s)
Quoted: 6579 Post(s)
Thanks: 3,246
Thanked 11,107 Times in 8,460 Posts
wheel balancing is where they put the rim and tire in a hooded machine and spin it n put weights on it to balance it

see this video on 4 wheel alignment


tire alignment is 4 wheel alignment
LIL DON SLK likes this.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Jeff, US Army Master Sergeant Retired
Administrator/Founding Member
2009 SLK 55 AMG Black/Black
Kleemann Supercharger thread here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Kleemann ECU Tune, headers and downpipes thread here:

To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Albums:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

ClearBra
OEM MB Plexiglass Draught Stop
Smarttop version 3.22
Previous - 02 SLK 320, 05 SLK 350
jbanks15 is offline  
The Following User Says Thank You to jbanks15 For This Useful Post:
#5 Old 10-11-2016
Registered Users
 
Join Date: Dec 2015
Location: Dixon Springs, Tennessee, USA
Vehicle: 1999 SLK 230 Kompressor Sport, silver, 5 sp, Speer tuned and pulley installed
Other Toys: '05 Cadillac STS 3.6L
Posts: 278
Country:
Chats: 0
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 58 Post(s)
Thanks: 0
Thanked 17 Times in 17 Posts
Garage
The tires I just took off my '99 230 had these wear patterns:
RF - looked almost new
LF - about 50%
RR - down to the wear bars and the inner half was worn more then the outer half
LR - close to the wear bars but evenly worn


(This is a project car that I'm still working on. I have no idea how many miles are on the tires. They were on it when I got it. But it was time to replace the tires as it is now running.)
dedgar is offline  
#6 Old 10-11-2016
Registered Users
 
Join Date: Oct 2016
Location: Austin, Texas
Vehicle: 2012 Mercedes SLK 350
Other Toys: 2 electric bikes
Posts: 11
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
(Thread Starter)
My first 2 set of Pirellis were worn evenly across the tire, just basically bald after 5K miles. This third set of Michelins , after the new alignment ,are mostly worn on the inner treads, i would say negative chamber. I go back to the dealership tomorrow. They are working with me, they paid for the second set of Pirellis, did a free alignment and i paid for the 3rd set of michelins. I really love the car, but this seems crazy.
jbanks15 and LIL DON SLK like this.
loosej89 is offline  
#7 Old 10-11-2016
Premium Member

 
Idiot101's Avatar
 
Join Date: Sep 2014
Location: Pfafftown, NC
Vehicle: 2004 slk32 amg
Other Toys: 69 GTX - Red!
Posts: 4,921
Country:
Chats: 0
Mentioned: 12 Post(s)
Tagged: 0 Thread(s)
Quoted: 265 Post(s)
Thanks: 189
Thanked 279 Times in 268 Posts
Be interesting what they find. They too recognize something odd or,they would not have paid for the tires.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


The Toy
Idiot101 is offline  
#8 Old 10-11-2016
Registered Users
 
Join Date: Oct 2016
Location: Austin, Texas
Vehicle: 2012 Mercedes SLK 350
Other Toys: 2 electric bikes
Posts: 11
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
(Thread Starter)
Well, after the first set burned through in 5K miles, i convinced them that that was NO way they were new tires when i bought the car, even though their paperwork indicated that they were new.
What else could go wrong with rear tires other than alignment...what else could it be? There is no weight back there and i keep up with tire pressure. I am positive that i am not racing the car ! I have seen tires that were out of balance, the have a distinctive wear pattern and also, you can generally feel the imbalance when you drive. Could it just be a "bad" car?
LIL DON SLK likes this.
loosej89 is offline  
#9 Old 10-11-2016
Moderator

 
WoZ53's Avatar
 
Join Date: Feb 2016
Location: Eureka, California
Vehicle: 2006 280 SLK Caspian Blue Metallic
Posts: 9,691
Country:
Chats: 0
Mentioned: 95 Post(s)
Tagged: 0 Thread(s)
Quoted: 387 Post(s)
Thanks: 540
Thanked 2,267 Times in 1,117 Posts
Garage
5k is definitely not normal. I would have a shop check to make sure something is not causing some kind of binding in the rear wheels. Like an emergency brake partially engaged.

Welcome to the forum
Where search is your friend
and the info never ends



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Tim Wozny/ WoZ
Eureka,CA
WoZ53 is offline  
#10 Old 10-11-2016
Registered Users
 
Join Date: Jul 2014
Location: Aurora, CO
Vehicle: 2015 SLK250
Other Toys: 2001 MX-5, 2002 Nissan Frontier
Posts: 352
Country:
Chats: 0
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 96 Post(s)
Thanks: 4
Thanked 60 Times in 46 Posts
I think wear is a little better for highway miles than city miles, just like gas mileage. A tire with an old date code might wear strangely, but they usually get harder. That's if the date is six or seven years old.


The rear Pirelli PZeros on our car aren't quite down to the wear bars yet at 13,000 miles on an SLK250, 101hp less. I expected more like 20K. I know I haven't done any burnouts - my wife says she hasn't either but who knows. I'll put on snow tires in a couple of weeks and buy new rears in the spring.
Just1MoreDave is offline  
#11 Old 10-11-2016
Founding Member #2

 
etyu's Avatar
 
Join Date: Jun 2006
Location: Orange County, CA
Vehicle: 2008 SLK 55
Posts: 19,393
Country:
Chats: 11
Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
Quoted: 345 Post(s)
Thanks: 4,571
Thanked 3,143 Times in 2,269 Posts
Garage
Quote:
Originally Posted by jbanks15 View Post
...
I have a 55 AMG so I get about 10000 per rear tire .....
I echo the same.... although i don't go Mustang hunting

Eddy



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Pewter(cubanitsilber metallic)/Beige, PIII package, Airscarf, Hands-Free Communication System, Lighting package; Designo Black Leather Cover on e-brake handle(Thank you Bill T), SmartTop v3.x, John's 3BFM, M113 AMG OEM air filters, Modified R170 ant., clear side-markers & front parking lamps w/error-free LEDs, chromed front & rear turn indicator lamps, steel mesh at battery bay cover & cabin air intake, sock-over-seatbelt buckles, belt-loop guide protectors, Lamin-X fog lamp protectors, bilateral rear fog lamps enabled, AMG crest on gear shift knob
etyu is offline  
#12 Old 10-11-2016
Founding Member #2

 
etyu's Avatar
 
Join Date: Jun 2006
Location: Orange County, CA
Vehicle: 2008 SLK 55
Posts: 19,393
Country:
Chats: 11
Mentioned: 81 Post(s)
Tagged: 0 Thread(s)
Quoted: 345 Post(s)
Thanks: 4,571
Thanked 3,143 Times in 2,269 Posts
Garage
Quote:
Originally Posted by loosej89 View Post
I bought a certified pre owned SLK 350 in August of 2014, it had new tires on it and had just been aligned. Since then, i have replaced the rear tires 3 times and 1 new alignment. 2 sets of Pirelli and one set of Michelins. I have 18 inch wheels. I have put 16K miles on the car in a little over 2 years, and i now need to put a 4th set of rears on ! Fronts are fine. I am 69 years old, i don't drive it hard. Is 5K/set "normal" wear. How many miles are others getting on rear tires ? Other than alignment, what else can be done ?
Would mind giving us more details about the tires?

What type of Pirelli's? Do you know the tread wear rating?
What type Michelin tires? Pilot Super Sports?
Do you check the cold tire inflation every month? Do you check the tread wear with a tread wear gauge? Measure across all grooves?
LIL DON SLK likes this.

Eddy



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

Pewter(cubanitsilber metallic)/Beige, PIII package, Airscarf, Hands-Free Communication System, Lighting package; Designo Black Leather Cover on e-brake handle(Thank you Bill T), SmartTop v3.x, John's 3BFM, M113 AMG OEM air filters, Modified R170 ant., clear side-markers & front parking lamps w/error-free LEDs, chromed front & rear turn indicator lamps, steel mesh at battery bay cover & cabin air intake, sock-over-seatbelt buckles, belt-loop guide protectors, Lamin-X fog lamp protectors, bilateral rear fog lamps enabled, AMG crest on gear shift knob
etyu is offline  
#13 Old 10-12-2016
Registered Users
 
Join Date: Oct 2016
Vehicle: Former SLK/350/55 Owner
Other Toys: C43AMG Cabriolet, A 220 4MATIC, W114/8
Posts: 994
Country:
Chats: 0
Mentioned: 16 Post(s)
Tagged: 0 Thread(s)
Quoted: 228 Post(s)
Thanks: 37
Thanked 87 Times in 62 Posts
Please post a picture or the side of the tyre or write down any numbers it says.
Seems that they either install tyres with the wrong load rating, or that they align the with the right camber but the wrong toe.
Is the tyres surface flat or it looks like it has scratches?
Charlie350 is offline  
#14 Old 10-12-2016
Premium Member
 
PropDr's Avatar
 
Join Date: Jun 2009
Location: Eugene,OR
Vehicle: 2008 SLK 55 AMG 030 with SC
Other Toys: 2012 Ford Raptor, 06 BMW R1200 RT
Posts: 3,248
Country:
Chats: 0
Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 18 Post(s)
Thanks: 277
Thanked 622 Times in 455 Posts
Garage
SLKs have negative camber on all wheels.
To have even wear on the rear tires and worn out at 5K miles you have to have excessive toe-in.
If alignment is checked and is within specifications, you have a problem with rear link bushings/bearings; a link bushing/bearing has to allow the wheels to move to additional toe-in under load.
Being a rear wheel drive car, the rears are under load almost all the time.
Jmtcw.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

My Beautiful Black Walküre (Valkyrie)
PropDr is offline  
#15 Old 10-12-2016
Registered Users
 
Join Date: May 2015
Location: London
Vehicle: 05 55
Other Toys: My little Pony
Posts: 1,647
Country:
Chats: 0
Mentioned: 58 Post(s)
Tagged: 0 Thread(s)
Quoted: 540 Post(s)
Thanks: 43
Thanked 111 Times in 106 Posts
I bought new tyres today from a specialist and had a long chat with one of the assistants, who happened to be a petrolhead himself. After I'd bought my tyres (which by coincidence turned out to be what he runs on his own car) he reminded me that they wouldn't be covered by the OEM 5 year warranty.'WTF is that? I enquired.
Well, according to his intimate knowledge of Continental/Uniroyal, Michelin and Pirelli, those manufacturers produce 'M' specified tyres which have been tweaked to Mercedes particular suspension set ups, with, allegedly, differing wall stiffness and even non-linear tread depth after quite considerable development testing. At this point I reveal that my fronts always wear the inner side to U/S way before the other 80% of the tread is close to the indicator bars - and that I've had my front geometry and linkages checked several times and never been out of spec. 'There you go then' says the tyre man.

However - 'M' specced tyres are quite a bit more expensive and choices are limited, so for a lot of people it makes more sense to buy a slightly cheaper tyre that they like and bin them a little earlier if the wear is uneven. The additional logic is that the legal limit of 1.6mm (the height of the wear blocks) is not really adequate for complete water clearance and many manufacturers recommend for greater safety in the wet, to dump tyres at 2.5 - 3mm. So pay roughly an additional GBP 40-50 per corner, receive a 5 year warranty against manufacturing defects and hopefully run your boots evenly down to the blocks, or compromise a bit and bin at a safer overall tread depth?

Choices choices - and of course, the dude might have been speaking out of his hiney....
DAVIETHESCAFF likes this.
Terminal is online now  
#16 Old 10-12-2016
Registered Users
 
Join Date: Aug 2016
Location: United Kingdom
Vehicle: SLK 55 AMG [2013]
Other Toys: Grinnall Scorpion, Mazda MX5...
Posts: 714
Country:
Chats: 0
Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 63 Post(s)
Thanks: 2
Thanked 79 Times in 50 Posts
Have to agree with the statements above... 5K is not normal and going for the 4th set in 16Kmiles is certainly not in line with what I have seen...

Excessive wear can be multiple things... Tyre pressure, wheel balance, alignment (toe in /out; camber negative / positive), type of roads driven on, speeds, cornering etc... I expect the first three can be sorted fairly easily
CH3CK3RZ SNR is offline  
#17 Old 10-12-2016
Registered Users
 
Join Date: May 2015
Location: London
Vehicle: 05 55
Other Toys: My little Pony
Posts: 1,647
Country:
Chats: 0
Mentioned: 58 Post(s)
Tagged: 0 Thread(s)
Quoted: 540 Post(s)
Thanks: 43
Thanked 111 Times in 106 Posts
Quote:
Originally Posted by loosej89 View Post
My first 2 set of Pirellis were worn evenly across the tire, just basically bald after 5K miles. This third set of Michelins , after the new alignment ,are mostly worn on the inner treads, i would say negative chamber. I go back to the dealership tomorrow. They are working with me, they paid for the second set of Pirellis, did a free alignment and i paid for the 3rd set of michelins. I really love the car, but this seems crazy.

My rears always wear evenly, despite that I run high pressures in an attempt to save my 18'' AMG rims in the case of a pothole or raised drain. So far this has worked, but lost a nearly new 'M' spec P-Zero with a non warranty covered sidewall failure (raised drain). I rarely smoke my tyres, but 'chirp' them at red lights quite a bit. In the wet, I let the ESP sort them out, but I figure there's not too much friction anyway. I drive 75% of the time in 'C' and 25% in 'S', but since I live in the 'burbs, I reset my throttle/tranny 'adaptive' once in a while as the car gets bored with congested roads. I get 9/10k miles from a set of rears.
Terminal is online now  
#18 Old 10-12-2016
Registered Users
 
Join Date: May 2015
Location: London
Vehicle: 05 55
Other Toys: My little Pony
Posts: 1,647
Country:
Chats: 0
Mentioned: 58 Post(s)
Tagged: 0 Thread(s)
Quoted: 540 Post(s)
Thanks: 43
Thanked 111 Times in 106 Posts
Quote:
Originally Posted by CH3CK3RZ SNR View Post
Have to agree with the statements above... 5K is not normal and going for the 4th set in 16Kmiles is certainly not in line with what I have seen...

Excessive wear can be multiple things... Tyre pressure, wheel balance, alignment (toe in /out; camber negative / positive), type of roads driven on, speeds, cornering etc... I expect the first three can be sorted fairly easily

Pretty much all of these anomalies would result in some form of visible unevenness in wear, such as feathering or tread depth. OP says all looks normal on his worn boots.
Terminal is online now  
#19 Old 10-12-2016
Registered Users
 
Join Date: May 2015
Location: London
Vehicle: 05 55
Other Toys: My little Pony
Posts: 1,647
Country:
Chats: 0
Mentioned: 58 Post(s)
Tagged: 0 Thread(s)
Quoted: 540 Post(s)
Thanks: 43
Thanked 111 Times in 106 Posts
Quote:
Originally Posted by WoZ53 View Post
5k is definitely not normal. I would have a shop check to make sure something is not causing some kind of binding in the rear wheels. Like an emergency brake partially engaged.
I think that would more likely smoke the brakes or bearings, rather than the tyres.
WoZ53 likes this.
Terminal is online now  
#20 Old 10-12-2016
Registered Users
 
Join Date: Oct 2016
Location: Austin, Texas
Vehicle: 2012 Mercedes SLK 350
Other Toys: 2 electric bikes
Posts: 11
Country:
Chats: 0
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 5 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
(Thread Starter)
The tires that were on the car provided by the dealer were Pirelli P Zero UTQG 220. The fronts are still on the car and look fine, 6-7 32nds. The first rear replacement were with P-Zeros again. After 5K miles they were worn out too, evenly across the tire.
The 3rd replacement, with 4 wheel alignment, i wanted Michelin and a "harder" tire, so i bought Michelin Pilot super sport from tire rack, rears with UTQG of 300. All alignment and installation done at the Mercedes dealership. Now, after 5,600 miles these are almost gone. The tread depth reads 4-5 32nds on the outer groove, 3 32nds in the center groove, ad 2 32nds on the inner groove. This 2 inner grooves are down to the bars.

I don't check the pressure monthly, but i do check them several times / year. I usually run them at the recommended 39 but sometimes at 40. The front are 35 or 36 lbs depending on what i put in the rears.

So, even though the new alignment changed the wear pattern a bit, i am still just getting about 5K -6K miles on the rears ! These tires, since put on in january 2016, were driven 3600 miles with city style driving, and 2000 miles were just put on last week on a road trip to Colorado... speeds generally around 75 +- 20 miles/hour. All this has happened with 16K total miles on the car since i bought it in Aug of 2014. 26K-42K on the odometer.

Thanks all for your ideas.
Attached Images
File Type: jpg IMG_2361.JPG (107.0 KB, 17 views)
LIL DON SLK likes this.
loosej89 is offline  
Sponsored Links
Advertisement
 
Reply

  Lower Navigation
Go Back   Mercedes Benz SLK Forum > Technical Information > Tires, Wheels, Brakes & Suspension

Bookmarks

Quick Reply
Message:
Options
Upload your files to MEGAUPLOAD
Upload your images to ImageShack

Register Now



In order to be able to post messages on the Mercedes Benz SLK Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
My flat tire story axolotl SLK R172 General Discussion 2 07-09-2016 07:01 PM
Rear Tire Wearing Unevenly vandalguy Tires, Wheels, Brakes & Suspension 7 10-29-2015 06:04 PM
Your Opinion on R171 Tire Wear mb911 SLK R171 General Discussion 20 08-28-2014 09:29 PM
Wrong tire on Rear '55 rim nmslk SLK R171 General Discussion 26 03-21-2007 07:39 PM
Baby Got Back - Rear Skirt & Spoiler on SLK350...... RacerCub68 SLK R171 General Discussion 11 08-15-2006 12:52 PM

Posting Rules  
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome
 

Clubs, Garage Plus vBulletin Plugins by Drive Thru Online, Inc.