The Seasider Posted August 2, 2014 Share Posted August 2, 2014 There's a certain comedy value in my tale of woe, but I could do with some help in coming out of it with a point! I did search all 21 pages first but no one had been quite as stupid as me up to now! I have collected 2 sets of new tyres for my zeds over the last few weeks - unfortunately, as a consequence of misnoting the tyre sizes or more accurately noting down the sizes from a completely different car - I've finished up with 2 sets of the wrong tyres! First time I became aware of it was on fitting the new tyres to my import automatic coupe - which now runs very interestingly with lots of slip light and overactive traction control! The set up is 235/40/18 front & 255/35/18 rear - I appreciate that these are all wrong relative to oem - but can somebody suggest the best resolution that will ease the tc and slip issues - involving buying the minimum number of new tyres! I've considered having the 235/40/18's moved to the back and putting something like 215/40/18 or 225/40/18 on the front or, alternatively keeping the 235/40/18 on the front and changing the rears to either 245/40/18 or 255/40/18. Could somebody help me with the maths :-) I am aware that the car will be lower - but it hasn't caught on anything yet - and that the speedo may misread and the odometer may click faster, but it can cope with all that! Oh, and if anybody owns a Mercedes e class coupe or convertible - I've got a couple of spare sets of tyres! 1 Quote Link to comment Share on other sites More sharing options...
The Seasider Posted August 5, 2014 Author Share Posted August 5, 2014 Any thoughts on solutions? ......anyone? (Apart from 'muppet!') í ½í¸ƒ Quote Link to comment Share on other sites More sharing options...
Desey Posted August 5, 2014 Share Posted August 5, 2014 (edited) You've got different profiles on the rear thats why your traction is over-active, your ecu assumes the profile on front and rear is the same it doesnt matter what profile you run, thats not the issue, its that your fronts have a different profile to the rear you can either - do it properly - invest in tyres the right size do it unproperly - pull the fuse on the traction, but you will also lose ABS i believe all you need to do is buy some 255/40/18 for the rear Edited August 5, 2014 by Desey Quote Link to comment Share on other sites More sharing options...
WhackyWill Posted August 5, 2014 Share Posted August 5, 2014 Have a read of this... Dont suppose your neighbours by any chance... :scare: http://www.350z-uk.com/topic/88731-guysalloy-wheels-i-need-help/ Quote Link to comment Share on other sites More sharing options...
brillomaster Posted August 5, 2014 Share Posted August 5, 2014 as said above, change the rears to 255/40/18. lots of members run lower profile tyres than usual, but keep the different widths. Quote Link to comment Share on other sites More sharing options...
Grundy Posted August 5, 2014 Share Posted August 5, 2014 Where is Dan 1 Quote Link to comment Share on other sites More sharing options...
AliveBoy Posted August 5, 2014 Share Posted August 5, 2014 Willtheyfit.com should help you with the percentages. Put the standard sizes in, and then work out the change needed for two of the tyres using the same method. Put the tyres up online, I'm sure Stevo and or bizz would be up for some half decent tyres at decent money Quote Link to comment Share on other sites More sharing options...
The Seasider Posted August 6, 2014 Author Share Posted August 6, 2014 Thanks for all of those contributions - I'll start looking for some new rears. I'm sure that I will recover most of the money from the sale of my tyres - it's just hassle isn't it? I'll post when all is well again :-) Quote Link to comment Share on other sites More sharing options...
Ekona Posted August 6, 2014 Share Posted August 6, 2014 Where is Dan Dan is here He says don't faff, do it properly. Buy tyres in the correct size, sell the wrong ones on eBay. Job's a carrot. 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.