Welcome to 911UK
The only place for Porsche, 911uk is the definitive enthusiast and resource site for the Porsche 911.
Registration is fast, simple and absolutely free, so join up today for full access to the site and benefit from latest member offers.

Porsche Classifieds
Sell Your Porsche on 911uk
Create a Free Classified Advert
Search Ads
Classified Adverts FAQ
Trade Classified Information
Buyer & Seller Fraud Protection
Consumer Rights Act
Pre Purchase Inspection (PPI)
Porsche Car Sourcing
Porsche Cars Wanted
Official Porsche Centre Reviews
Model
Stock
Porsche 911
992 : 2019- 0
991 : 2011- 28
997 : 2004- 63
996 : 1997-2005 32
993 : 1993-1998 3
964 : 1989-1993 0
Carrera 3.2 : 1983-1989 1
Carrera SC : 1977-1983 3
930 Turbo : 1975-1989 1
Early 911 : 1964-1977 2
Porsche Other Models
Classic : 1950-1965 0
Boxster : 1997- 30
Cayman : 2005- 23
Cayenne : 2003- 6
Macan : 2014- 7
Panamera : 2009- 0
912-914-924-928-944-968 0
959 - CarreraGT - RaceCar 0
Car Parts For Sale & Wanted
Other Items For Sale & Wanted
Wheels Tyres For Sale & Wanted
Number Plates For Sale Wanted

Porsche Services
Porsche Body Shop Repair
Paint Protection & Wrapping
Porsche Classic Insurance
Porsche Classic Parts
Porsche Classic Restoration
Porsche Design Collection
Porsche Engine Gearbox Rebuild
Porsche Heritage & History
Porsche News
Porsche Picture Gallery
Win a New Porsche 911

Porsche Parts
Body Parts, Body Styling
Brakes, Clearance
Electrical, Exhausts
Engine Cooling, Engine Electrical
Engine Rebuild, Heating Cooling
Interior Incar, Lighting
Rubber Seals, Service Parts
Steering, Suspension
Transmission, Workshop Tools
Early 911, 911 - 930, 928 - 968
964 - 993, 996 - 997, Boxster
Cayman, Cayenne, Panamera

Porsche Model Range
911 [992] 2018-Current
Porsche 911 [992]
911 [991] 2011-2019
Porsche 911 [991]
911 [997] 2004-2012
Porsche 911 [997]
911 [GT] GT1-GT2-GT3
Porsche 911 [GT]
911 [996] 1997-2005
Porsche 911 [996]
911 [993] 1993-1998
Porsche 911 [993]
911 [RS] RS-RSR
Porsche 911 [RS]
911 [964] 1989-1993
Porsche 911 [964]
911 3.2 1983-1989
Porsche 911 3.2 Carrera
911 SC 1977-1983
Porsche 911 SC
911 [Early] 1964-1977
Porsche 911 [Early]
Boxster & Cayman
Porsche Boxster & Cayman
Cayenne & Panamera
Porsche Cayenne & Panamera

911uk Site Partners

Post new topic   Reply to topic
Author Message
Jamie
Reims


Joined: 13 Apr 2006
Posts: 4311


2007 Porsche 997 Carrera 2S

PostPosted: Thu Apr 24, 2008 2:12 pm    Post subject: Puncture today! Reply with quote

Went to get in the car this morning and thankfully I noticed a puncture.

Porsche assistance were great in coming out, taking the wheel off and identifying where the puncture was. They have put me on a spacesaver - big red thing and have taken my wheel to Surbiton Tyre & Wheel (nice and local). Later this afternoon they will have a new identical tyre on for me.

The tread on all the others looks like c.5mm - my question is.....

Should I be getting two new tyres on the rear instead of one or is that only a problem if you mix tyre type?
 
  
View user's profile Send private message Send e-mail
   
Carrera4S
Paul Ricard


Joined: 16 Oct 2006
Posts: 3009



PostPosted: Thu Apr 24, 2008 2:31 pm    Post subject: Re: Puncture today! Reply with quote

Jamie wrote:
Went to get in the car this morning and thankfully I noticed a puncture.

Porsche assistance were great in coming out, taking the wheel off and identifying where the puncture was. They have put me on a spacesaver - big red thing and have taken my wheel to Surbiton Tyre & Wheel (nice and local). Later this afternoon they will have a new identical tyre on for me.

The tread on all the others looks like c.5mm - my question is.....

Should I be getting two new tyres on the rear instead of one or is that only a problem if you mix tyre type?


Yes!
 
  
View user's profile Send private message Send e-mail
   
Peach
Silverstone


Joined: 19 Dec 2007
Posts: 107
Location: Hertfordshire

2002 Porsche 996 Carrera 2

PostPosted: Thu Apr 24, 2008 2:55 pm    Post subject: Reply with quote

Are they definitely getting a new one not repairing it? If so I would agree new is probably best way to go....
_________________
996 C2
 
  
View user's profile Send private message
   
Fuchs
Shanghai


Joined: 22 Dec 2004
Posts: 4992
Location: Switzerland

1994 Porsche 993 Carrera 2

PostPosted: Thu Apr 24, 2008 2:56 pm    Post subject: Reply with quote

Jamie - somewhere in the handbook it will say something like - if the tyre depth on 2 tyres accross an axel differs between X.X % then new tyres of the same depth must be fitted.

Well it says that in the 993 handbook.........or i read it on t'internet...... Very Happy

Then again Porsche assist should know? Question
_________________
1994 Carrera 2
Ex 1984 Carrera 3.2
 
  
View user's profile Send private message
   
Jamie
Reims


Joined: 13 Apr 2006
Posts: 4311


2007 Porsche 997 Carrera 2S

PostPosted: Thu Apr 24, 2008 3:46 pm    Post subject: Reply with quote

The technician only advised me to put one new tyre on which is what I have done.

So, is there a major problem with this?
 
  
View user's profile Send private message Send e-mail
   
Carrera4S
Paul Ricard


Joined: 16 Oct 2006
Posts: 3009



PostPosted: Thu Apr 24, 2008 4:05 pm    Post subject: Reply with quote

Jamie wrote:
The technician only advised me to put one new tyre on which is what I have done.

So, is there a major problem with this?


ABS/PSM might, and I say might pick up on a differing rolling radius and cause them to act in an unusual way.

I remember having a few problems with my wife's 330Ci, when I drove it in a spirited way the DSC would kick in places where I'd never seen it happen before, sweeping left incline off a motorway the DSC light would be flickering constantly. I did some investigation and one of the rears was replaced at some point by the previous owner and there was a good few mill. difference left to right resulting in the problem. The BMW dealer replaced both tyres and problem was solved.
 
  
View user's profile Send private message Send e-mail
   
tim993
Zolder


Joined: 22 Aug 2006
Posts: 5231
Location: Hampshire

2016 Porsche Boxster 981

PostPosted: Thu Apr 24, 2008 4:09 pm    Post subject: Re: Puncture today! Reply with quote

Jamie wrote:
...and have taken my wheel to Surbiton Tyre & Wheel (nice and local)...


Hi Jamie - I've used these guys several times for new tyres / puncture repairs etc. Always been happy with their work and the prices are pretty good.

tim
 
  
View user's profile Send private message
   
Jamie
Reims


Joined: 13 Apr 2006
Posts: 4311


2007 Porsche 997 Carrera 2S

PostPosted: Thu Apr 24, 2008 4:15 pm    Post subject: Reply with quote

Tim, they did a good job indeed.

Damian, I drive the car pretty conservatively (noting i still have 5mm left after 9k miles) most of the time i.e. never get PSM going normally so would you recommend that I see how I go for a week or so? Wanted to avoid shelling out another £300 quid if possible - but not if it is really a problem.

Any more view on the topic?
 
  
View user's profile Send private message Send e-mail
   
ResB
Estoril


Joined: 30 Jan 2008
Posts: 3708
Location: North Yorkshire

2006 Porsche 997 Carrera 2S

PostPosted: Thu Apr 24, 2008 4:28 pm    Post subject: Reply with quote

I was told if there was 1.5 to 2mm difference you need to consider changing the other tyre also, in fact this is what I did when I got a puncture last year.

The manual for the C2S states the tread depth deviation "must" not exceed 30% on one axle. So 8mm depth on the new tyre x 30% = 2.4mm. Therefore the minimum depth of the other tyre on the same axle "must" not be less than 5.6mm.

Hope that helps. Thumb
_________________
I see dead pixels.
 
  
View user's profile Send private message Visit poster's website
   
tim993
Zolder


Joined: 22 Aug 2006
Posts: 5231
Location: Hampshire

2016 Porsche Boxster 981

PostPosted: Thu Apr 24, 2008 4:53 pm    Post subject: Reply with quote

you could esnure you turn more often to the side of the old tyre, that way after a few thousand miles, the new tyre will have caught up... Cool Cool
 
  
View user's profile Send private message
   
Peach
Silverstone


Joined: 19 Dec 2007
Posts: 107
Location: Hertfordshire

2002 Porsche 996 Carrera 2

PostPosted: Thu Apr 24, 2008 4:55 pm    Post subject: Reply with quote

tim993 wrote:
you could esnure you turn more often to the side of the old tyre, that way after a few thousand miles, the new tyre will have caught up... Cool Cool


Heavy duty roundabout session? Razz
_________________
996 C2
 
  
View user's profile Send private message
   
Wattie
Zolder


Joined: 05 Nov 2006
Posts: 5668



PostPosted: Thu Apr 24, 2008 4:58 pm    Post subject: Reply with quote

Peach wrote:
tim993 wrote:
you could esnure you turn more often to the side of the old tyre, that way after a few thousand miles, the new tyre will have caught up... Cool Cool


Heavy duty roundabout session? Razz


On the way to the 'Ring if on the wrong side Mr. Green
 
  
View user's profile Send private message
   
garyw
Montreal


Joined: 24 May 2007
Posts: 574
Location: warwickshire


PostPosted: Thu Apr 24, 2008 10:08 pm    Post subject: Reply with quote

I had a rear swapped about 3000 miles in due to a pot hole.
I replaced just one tyre with no long term issues.

garyw
 
  
View user's profile Send private message
   
Jamie
Reims


Joined: 13 Apr 2006
Posts: 4311


2007 Porsche 997 Carrera 2S

PostPosted: Fri Apr 25, 2008 8:37 am    Post subject: Reply with quote

ResB wrote:
I was told if there was 1.5 to 2mm difference you need to consider changing the other tyre also, in fact this is what I did when I got a puncture last year.

The manual for the C2S states the tread depth deviation "must" not exceed 30% on one axle. So 8mm depth on the new tyre x 30% = 2.4mm. Therefore the minimum depth of the other tyre on the same axle "must" not be less than 5.6mm.

Hope that helps. Thumb


I will go and buy a tyre depth guage today then and make a call on it.

Thanks for all your views.
 
  
View user's profile Send private message Send e-mail
   
Porsche
Donnington
Donnington


Joined: 31 Dec 2002
Posts: 12733
Location: Nürburgring Nordschleife

2003 Porsche 996 GT3 Mk2

PostPosted: Fri Apr 25, 2008 7:29 pm    Post subject: Reply with quote

good to hear you've got it sorted Jamie
_________________
Porsche on Youtube!

964 Project Car
996 MK2 GT3 CS Manthey
993 Targa
 
  
View user's profile Send private message Send e-mail
   
Jamie
Reims


Joined: 13 Apr 2006
Posts: 4311


2007 Porsche 997 Carrera 2S

PostPosted: Mon Apr 28, 2008 11:02 am    Post subject: Reply with quote

Bought a depth guage and the new one showing 7mm and the other side over 5mm so all looks good then.
 
  
View user's profile Send private message Send e-mail
   
Display posts from previous:   
Post new topic   Reply to topic   All times are GMT - 12 Hours
Page 1 of 1

 
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You can attach files in this forum
You can download files in this forum
You cannot post calendar events in this forum