E90/E91/E92/E93 OEM Spare Tire source

Originally Posted by TireSmoke

For how many miles is it safe to drive on a spare (if the spare is close in size to the original tire)? I know there are speed restrictions, but are there distance restrictions as well?

interesting... this is what bmw has to say about using the compact spare (which i take to mean no specific distance, just get it changed as soon as you can):
Only one compact wheel may be mounted. You should re-equip with wheels and tires of the original size as quickly as possible.

My only concern is, it may take 3-5 days to get the tires from Tirerack. Not many shops keep specific low profiles in stock (I just put on Michelin Pilot Exalto A/S on). In the meantime I would need to go to work (60 miles roundtrip). So, I would have to drive 180-300 miles on a spare. If this is too much, I would have to garage the car and sit home. Then a question comes up - why not skip the whole spare tire thing and use the mobility kit, which is lighter, smaller and cheaper. I am only leaning towards a spare if it allows me to use the car while I am awaiting the new tire. Any thoughts, guys?

well, i couldnt wait and dragged the whole thing down to my garage and did a test fit on the troublesome front wheels. I did only the driver's side front wheel.

IT FITS!

no rubbing, no contact with the brake caliper, nothing. The jack included with the kit fits our jack points perfectly, the tire iron is standard BMW 17mm.

i drove around the inside of my parking garage, up and down the ramps, left and right full lock, no rubbing, no problems. i couldnt go faster than about 20mph as its an indoor garage, but visually, there's at least 3mm of clearance between the caliper and the wheel. i had the windows open and listen carefully for any signs of rubbing. inspection of the wheel after remove revealed no contact scratches.


I cannot guarantee fit for any car but my own, but unless there's a massive production variance, this *should* fit all E9X cars without a spacer.

my next project is to figure out if i want to mount the spare to the roof of the trunk or leave it stuck in a corner.

Originally Posted by TireSmoke

My only concern is, it may take 3-5 days to get the tires from Tirerack. Not many shops keep specific low profiles in stock (I just put on Michelin Pilot Exalto A/S on). In the meantime I would need to go to work (60 miles roundtrip). So, I would have to drive 180-300 miles on a spare. If this is too much, I would have to garage the car and sit home. Then a question comes up - why not skip the whole spare tire thing and use the mobility kit, which is lighter, smaller and cheaper. I am only leaning towards a spare if it allows me to use the car while I am awaiting the new tire. Any thoughts, guys?

there is no mileage limitation that i can find anywhere online. i suspect that unless you wore the spare tire out, there's no issue with running it for a few hundred miles. similar compact spares are rated for 1-3,000 miles of treadwear. as long as you keep within the speed limit, the tire properly inflated and load limits, you should be find up to the tread life of the spare.

the issue with the mobility kit is, i actually have one of those, is that a sidewall rupture caused by a pothole, or a puncture beyond a certain size, cannot be sealed by a moblility kit.

Originally Posted by TireRack

Without even removing the foreign object (such as nails or screws) in the case of a fast leak or a flat tire, activating the ContiComfortKit sealant will inject the liquid latex tire sealant and the compressor will reinflate the tire to comfortably provide a quick and simple temporary repair of the most common tire hazards, such as tread area punctures caused by nails and screws up to approximately 1/4-inch (6mm) in diameter.
A typical passenger car tire that is flat will take less than seven minutes to fill.
Once the sealant is activated and inflation pressure is correctly set and confirmed with the ContiComfortKit's integral air pressure gauge (NOTE: normal pencil, dial and/or digital tire pressure gauge may become contaminated by the sealant and should not be used) after driving a few miles, the temporarily repaired tire is ready to be driven for up to 125 miles (200 km) at speeds up to 50 mph (80 km/h).

the really interesting thing is, i looked up the "M" Speed rating that the continental spare tire carries.
M corresponds to 81mph or 130kph. not that i would ever recommend running a compact spare above the manufacturer's stated limit of 50mph, but it does look like the tire is capable of higher speeds.

the full descriptor is 102 M

a load index of 102 corresponds to 1874lbs compared to the stock load rating of 88 for the fronts and 90 for the rears.... 1235lbs and 1323lbs respectively.

i suspect that this is a worse case scenario, to ensure that the tire can handle any possible extreme load. it does suggest that the temp spare is pretty rugged for what it is.

I like that the tools fit in the wheel hub. Much neater than having a separate jack kit. I am going to order today or tomorrow, if no other concerns come up. Awesome find.

Thanks a lot for the experiment. Could you post pics of the spare mounted on the car?


FM

Originally Posted by BMWFM1

Thanks a lot for the experiment. Could you post pics of the spare mounted on the car?


FM

right now its tossed in a corner. i'm going to see if i can attach it to the roof of the trunk and if that saves any space.

Orient330iNYC, do you think it will fit a 2007 328i sport package with no suspension mods? I'm thinking that the 330i and 328i should have the same size rotors and calipers.

Originally Posted by Bartman619

Orient330iNYC, do you think it will fit a 2007 328i sport package with no suspension mods? I'm thinking that the 330i and 328i should have the same size rotors and calipers.

i would say that it will almost certainly fit-- the 328i has smaller rotors. the issue with the 335i/330i is rotor diameter and caliper clearance, the E46 spare needs a 15mm spacer to clear the brakes. offset and well clearance should be identical to the 335i


the E60 spare fits without any spacer. smaller brake rotors, more clearance off the bat

Thanks Orient330iNYC, I'll be ordering the same thing soon.

Originally Posted by BMWFM1

Thanks a lot for the experiment. Could you post pics of the spare mounted on the car?


FM

did you mean mounted on the as in bolted up?

i'll try to do that this weekend when i have a driveway to work on.

here's a post from e90 showing the temp spare on a car. it looks pretty much the same...

Originally Posted by Orient330iNYC

right now its tossed in a corner. i'm going to see if i can attach it to the roof of the trunk and if that saves any space.

I meant mounted on the wheel axle in place of the regular wheel.


FM

nothing magical, it looks almost exactly like this:

I have an '08 335i Coupe with sport and 19" wheels. The 19" wheel combo has approximately the same outside diameter as you mentioned. My question is: does the couple have anything different about it that would prevent this solution from working (eg larger calipers)?

Originally Posted by jlipton

I have an '08 335i Coupe with sport and 19" wheels. The 19" wheel combo has approximately the same outside diameter as you mentioned. My question is: does the couple have anything different about it that would prevent this solution from working (eg larger calipers)?

nope, sedan and coupe have the same brakes

That's great. Thanks very much for figuring this out. With the 19" RFTs, if I get a flat it could take quite a while to get a replacement. This is an ideal solution. And later I will replace with non-RFTs.

Thanks for the great info! I may have missed it, but can someone provide a link to the spare w/all the tools. Thanks

Originally Posted by Pharmacist_

Thanks for the great info! I may have missed it, but can someone provide a link to the spare w/all the tools. Thanks

first post has the p/n, 36 11 0 308 889, i ordered mine from tischer bmw
www.getbmwparts.com

Orient:
Thanks for the research on this topic. I have same vehicle as you and am also interested in this solution.

Was at a local dealer and noticed a 2008 535xiT service loaner (non ZSP, all-season tires). It had a T135/80R17 102M compact spare just like the one you discovered from the 550i. Didn't feel right about pulling it out to check the rim size :-) , so don't know if it is the 4BX17 ET:18 that you found fits our 335s.

Tried researching 535xiT parts for spare rim size, but Tischer site doesn't have that vehicle. Can you suggest another source to find if the 535xiT emergency rim would fit our cars?

Cheers, ED

Originally Posted by ed914

Orient:
Thanks for the research on this topic. I have same vehicle as you and am also interested in this solution.

Was at a local dealer and noticed a 2008 535xiT service loaner (non ZSP, all-season tires). It had a T135/80R17 102M compact spare just like the one you discovered from the 550i. Didn't feel right about pulling it out to check the rim size :-) , so don't know if it is the 4BX17 ET:18 that you found fits our 335s.

Tried researching 535xiT parts for spare rim size, but Tischer site doesn't have that vehicle. Can you suggest another source to find if the 535xiT emergency rim would fit our cars?

Cheers, ED

i just checked, all the E60s use the same tire and wheel. the retrofit kit application covers all E60s.

are you looking for just the rim? warning being, the reason i got the whole kit was that the tire to go on the rim is quite hard to find.

Is this the one? That is all I need to order? Where is the other parts on your first post?

SHOPPING CART
Description Qty MSRP Price Your Price Core Price Total Cost
OEM Catalog
EMERGENCY WHEEL $299.01 $239.21 $0.00 $239.21 Delete From Cart

Originally Posted by Orient330iNYC

I know the leather-Z kit has been out for a while. it just never sat right with me that a) it was almost 400 for the kit that fit the 335i ( tire + tools + spacer & bolts)
b) you needed to use a 15mm spacer to get it to work.

digging through the ETK, it looks like the leather-z spare is the spare from the E46 cab.
3.50BX17 ET:30

a little more digging shows that the E60 550i uses front brake rotors the same size (348mm) and thickness as the 335i. brake calipers look to be of approximate same size.

the compact spare for the 550i is:
4BX17 ET:18

the offset is close to that of the E46 spare plus spacer-- ET 15 for the E46 spare wheel + spacer vs ET 18

now the fun part. BMW sells a retrofit spare kit for the E60. it includes:


the wheel +tire diameter is within 2% of stock tires.

total price from tischer BMW, for the whole retrofit kit listed above, before shipping, is $239.

I've ordered up a set, will keep everyone posted as to if it works. if it doesnt, i have a new flower planter. if it does, a spare that works without having to deal with the spacer, and for a lower price.

Orient330iNYC, mad, mad props!! You are da E9x spare tire man!!

This thread should be stickied!!

Great thread. I will stick it (and rename it for clarity)!

In the meantime, will an X5 spare fit too? Is it the same as the X3/550i?

- Mike

Great find, thank you Orient330iNYC!

http://www.realoem.com/bmw/partxref....+889&showus=on Real OEM BMW parts site shows that kit should fit numerous models . . .

Originally Posted by Emission

Great thread. I will stick it (and rename it for clarity)!

In the meantime, will an X5 spare fit too? Is it the same as the X3/550i?

- Mike

X5 looks like it uses a different rim and tire. rolling diameter comes out to 662mm

the E60 spare is 647mm
the E46 spare is 632mm


Stock E9x varies from 640mm( 19" rolling diameter front) to 634mm (17" sport package front)


IMHO, its too much of a difference for the X5 spare. almost an inch in diameter.

X5 spare specs (E70)


Black steel emergency wheel 5JX18 ET:14
Tyre 155/90 R18 113M