[ROBM2C]

I wonder if a clip may be missing preventing the liner from staying held back ?

[BigKutta]

Originally Posted by ROBM2C

I wonder if a clip may be missing preventing the liner from staying held back ?

Both sides do it

[///AVM]

BigKutta

When looking at ROBM2C photo, his liner looked different to me than yours.

Rob's looks like smooth black plastic, while yours looks more like a grey felt.

COULD 100% BE LIGHTING AND ANGLES, BUT . . .

I went and looked at my liner and it does seem to look different than yours . . . and just like Rob's.

Reaching for straws?? Maybe, but my clinic is slow today so I am on your case

///AVM

[Artemis]

Originally Posted by ///AVM

BigKutta
When looking at ROBM2C photo, his liner looked different to me than yours.
Rob's looks like smooth black plastic, while yours looks more like a grey felt.
COULD 100% BE LIGHTING AND ANGLES, BUT . . .
I went and looked at my liner and it does seem to look different than yours . . . and just like Rob's.
Reaching for straws?? Maybe, but my clinic is slow today so I am on your case
///AVM

On the 1M there was initially a fender liner rubbing problem (wheels turned - full lock, especially with the stock 270M 18" winter set-up offered by BMW, contrary to the stock 359M 19" summer set-up with Michelin PS2 tires).

BMW redesigned and replaced the 1M fender liners under warranty if asked (BMW PuMA case reference 49636119-01).

I started a dedicated thread back in 2012 pointing out the warranty, and it helped several 1M owners in getting this replacement. It became quite a popular sticky thread (over 200 comments and almost 155K views).

1M:




Rubbing signs:


The redesigned version for the 1M (left & right: more clearance):




Side by side comparison:

right hand side: new versus old:


left hand side: old versus new:

[BigKutta]

Originally Posted by ///AVM

BigKutta

When looking at ROBM2C photo, his liner looked different to me than yours.

Rob's looks like smooth black plastic, while yours looks more like a grey felt.

COULD 100% BE LIGHTING AND ANGLES, BUT . . .

I went and looked at my liner and it does seem to look different than yours . . . and just like Rob's.

Reaching for straws?? Maybe, but my clinic is slow today so I am on your case

///AVM

Doc thanks, but I think we have the same liner. My "felt" look is purely dirt. Yeah I could have washed the damn thing when I swapped wheels, but it was so damn cold. Anywho, I took the liberty of marking up your pic. Can you check to see if the vertical oval that I marked is an area where there is ridge/kink running up the liner? And in the lower oval, if the ridge/kink ends above the vented section in a bigger bump in the liner?

Please dont make my responses as if I am panicking about this. I'm not too bothered and am loving the look of the 437s. But since you and many other awesome forum members are asking and providing input, i'll oblige.

[///AVM]

Originally Posted by BigKutta

. . . Can you check to see if the vertical oval that I marked is an area where there is ridge/kink running up the liner? And in the lower oval, if the ridge/kink ends above the vented section in a bigger bump in the liner? . . .

Kutta

Affirmative and affirmative.

What I can tell you - and I never cared to look previously - is that the space between my tire and the fender well is the width of a short hair. If I overinflated my front tires they would most certainly rub.

Bottom line is that 'something' being the slightest bit 'off' will cause rubbing.

I know we are talking about a first world problem . . . but what else do we have to do ???

///AVM

[///AVM]

Originally Posted by Artemis

On the 1M there was initially a fender liner rubbing problem (wheels turned - full lock). BMW redesigned and replaced the 1M fender liners under warranty if asked

Good stuff Artemis, as usual . . . as per my above post, the difference between rubbing and not rubbing is literally about the width of a short hair. I am surprised there is not widespread complaint of rubbing? Maybe there is and I am not aware of it?

///AVM

[BigKutta]

Originally Posted by ///AVM

Kutta

Affirmative and affirmative.

What I can tell you - and I never cared to look previously - is that the space between my tire and the fender well is width of a short hair. If I overinflated my front tires they would most certainly rub.

Bottom line is that 'something' being the slightest bit 'off' will cause rubbing.

I know we are talking about a first world problem . . . but what else do we have to do ???

///AVM

Yep, and there we go. I can imagine that fender liners are not precise in fit and construction to the millimeter, so a slight deviation on its design (or bending during install/transport/weather), or fit will cause this to happen, and cause some to get lucky some not so much.

[Artemis]

Originally Posted by ///AVM

Good stuff Artemis, as usual . . . as per my above post, the difference between rubbing and not rubbing is literally about the width of a short hair. I am surprised there is not widespread complaint of rubbing? Maybe there is and I am not aware of it?
///AVM

But also good points for VisualEcho: go bigger than OEM stock tire size or drop lower than OEM stock ride height suspension = increased risk of rubbing.

Unsafe encounters between tire and fender liner are a safety and tire longevity issue. A 2012 comment illustrating this:

Originally Posted by Papethova

Be careful, tire rubbing could lead to tire failure. I was in a car on the track with serious tire rubbing and we had no idea.

One lap after I got out the tire blew (120mph+) and the car slammed into the outside wall of a large banked curve , driver almost saved it.

[BigKutta]

Originally Posted by Artemis

But also good points for VisualEcho: go bigger than OEM stock tire size or drop lower than OEM stock ride height suspension = increased risk of rubbing.

Unsafe encounters between tire and fender liner are a safety and tire longevity issue. A 2012 comment illustrating this:

All point well taken regarding increased sizes and lower = potential for issues. However, there are several threads over in the tech forum about wider tire use in stock suspension or even lowered and people not reporting issues, and here we have people reporting issues with OEM size non-PSS as well. Who know what the real issue is. Anyway, when I replace I'll go stock size up front (only &#128515. For me based on where I live and the fact that I don't intend to drive in snow ice, I could even do an all season tire set for the winter. Not that it will solve my issue but it will open up tire options for me.

[BigKutta]

So another question for the pros. The torque wrench I used to swap my wheels did not click when the right torque is reached (or ever). So I estimated the original tightness of the OEM lugs to tighten the new wheels. Today I went and bought a new husky torque wrench and was just loosening and tightening the lugs to spec 101 lb ft or 140 Mm. Is it me, or does it not take much to tighten to these specs? I can see how people overtighten lugs way over spec.

[Karmic Man]

When you go wider you also go with a lower profile (shorter) tyre so there would be more clearance than stock size!

On the front (OEM height), 265/30, 275/30 19 doesn't rub on the OEM 9 inch wide wheels (offset ET29) or on a 9 inch or a 9.5 inch wide (offset ET23-ET27) aftermarket.

On the rear (OEM height), 285/30 19 doesn't rub on OEM 10 inch wide wheels (offset ET40) or on a 10 inch aftermarket (offset ET34, ET36, ET40). On a 10.5 inch aftermarket, an offset of 40+ won't rub. An offset of 44+ is required for 295 or 305 on a 10.5 if lowered. Additional cambering might be required to clear a 305 depending on the tyre model.

If you go with stock size tyres, the brute grunt of the S55 will exhaust the rear grip easily and the weighty weight of the F87 will exhaust the front grip easily. Go with a wider set of wheels and put on at least 265/285 so you are not leaving performance on the table.

[BigKutta]

Yes a lower aspect ratio is the way to go for sure when going a bit wider.

[mikeyymonster]

Just noticed my fronts are rubbing after adding 10mm spacers... running 763M lowered on M-performance coilovers on oem size tires. Car is not even that low, maybe 2 finger gap? Only happens when I'm reversing slowly with the wheel turned.