Tyre Pressures: 225/40/18 - BMW Forum - BimmerWerkz.com
3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 12-22-2007, 11:28 AM
n00b
 
Join Date: Aug 2007
Posts: 35
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Pete2007 is on a distinguished road
(Thread Starter)
Tyre Pressures: 225/40/18

Just purchased some new MV2 alloys along with 225/40/18 tyres, what tyre pressures should these be?

Its for a e46 318ci
Pete2007 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 12-23-2007, 08:40 AM
n00b
 
monerai's Avatar
 
Join Date: Nov 2007
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
monerai is on a distinguished road
Smile

No one has responded to this yet, so I'll throw out what little I know to maybe get someone started with a "that's not right - it should be . . . "

I have the 225/40/18 tires on the front of my 330ci and the book calls for a max pressure of 32 lbs. at normal loading (4 people on board) and up to 39 lbs. with full load (five people plus luggage.)

Of course, the rears on mine are 255/35/18 and recommendations there are 38 to 46 lbs, dependent on load.

If the 225/40/18s were not an option on the 318 (and I don't think they were), then the recommended pressures are not going to be listed in the owner's manual. It should be a little lighter car with different weight distribution and handling so pressures from the 330 will not necessarily work. You are either going to have to experiment a lot, maybe call Tire Rack for an initial pressure setting, or just keep posting your question on different BMW forums until someone with a 318 and similar setup gives you an idea - of course he or she will have probably guessed, too.

Good luck.

web page: Planes & Things
monerai is offline  
#3 (permalink) Old 12-23-2007, 03:11 PM
Im Bluffin With My Muffin
 
AlpineSixAndSeven's Avatar
 
Join Date: Nov 2006
Location: Palo Alto, CA
Posts: 5,992
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
AlpineSixAndSeven is a splendid one to behold AlpineSixAndSeven is a splendid one to behold AlpineSixAndSeven is a splendid one to behold AlpineSixAndSeven is a splendid one to behold AlpineSixAndSeven is a splendid one to behold AlpineSixAndSeven is a splendid one to behold AlpineSixAndSeven is a splendid one to behold
Send a message via AIM to AlpineSixAndSeven
^ i'd say 70% of max pressure on the tire when cold and unloaded...

1991 Ford Taurs SHO 5 Speed White on Tan
1996 Chevy Lumina LTZ Rep 3.4L
1992 318i Coupe parts car
1992 325i Ls1 swap with a T56 6 speed 12.2 quarter mile
1976 Mercedes Benz 300D with a Ford 5.0L Fuel Injected soon to be Modded
I am Captain Obvious
AlpineSixAndSeven is offline  
#4 (permalink) Old 12-23-2007, 03:19 PM
2nd Gear Member
 
isherdholi's Avatar
 
Join Date: May 2007
Posts: 353
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
isherdholi will become famous soon enough
Hi there,

sorry I didn't see your thread earlier. I also have 18-inch MV2's on my E46, with the same size tyres as you.

I have an E46 320i

I filled my fronts (225/40/18) to 32 psi (lbs per square inch)

I filled my rears (255/35/18) to 36 psi (lbs per square inch)

This is what it says in my manual.

I think you should be ok with the same tyre pressures as this.

isherdholi is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E46, E90)


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
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
tyre pressure control joebe1 3-Series (E46, E90) 2 07-09-2007 07:14 PM
2005 325i Tyre Quetion fobbie 3-Series (E46, E90) 6 03-26-2005 05:00 PM
E39 Tyre Sizes BeelZibub 5-Series (E12,E28, E34, E39, E60) 0 11-16-2004 04:49 AM
Tyre Pressures robby c 5-Series (E12,E28, E34, E39, E60) 2 11-15-2004 08:50 AM
Tyre Pressures Quinny 3-Series (E36) 1 07-08-2004 01:47 PM

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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