BetterTomorrow

Does it fit with toolbox without lit burging up?

Thanks

hyperion667

isn't it the kind that you can fold up? that isn't the right word......
it's deflated isn't it?

threeMBs

Full size spare (OEM 245/40-18 on 18x8.5") does fit, but it lifts floor cover about 1/2".

I found out that narrower than stock, but still full size tires - 215/50-17, 215/45-18, 225/50-17 or 225/45-18 - all fit while lid ramains flat. On top of that, with 215 width tires, even intermediate cover (between main lid and spare tire) still fits. The only dowside is that a separate, narrower than stock (7.5" or 8") wheel, will be required. I sold all my temporary spare wheel/tire assemblies and replaced them all with full size wheel/tire (both narrower than stock, but still full size) from TireRack.

BetterTomorrow

Thank you for info. Sounds like 215 is the way to go.

blackbullit

I was able to fit a full size spare in my 2010 E550 (245/40-18) without lifting up trunk floor cover at all. I just had to remove the black styrofoam liner in floor of trunk (under the temporary spare), so that full size spare is on the bottom of the well. Much better to have in emergency than a temporary...back to running full speed!

BetterTomorrow

That's even better!
Hopefully I can find a 18' amg on ebay soon.
Thank you for info.

BenzV12

Here's an image from my trunk . My sapre is full size and as you can see there is a mini 2nd battery by the tire for keyless go system enhancement .My cover lifts nicely and neatly

EuroDriverSD

I added a full size spare (BRABUS Monoblock R 18x8.5) complete with TPMS. I went with the regular tire size (245/40/18). When I had the tire mounted, I asked them to program the TPMS to the car but the shop told me that the TPMS system can only read 4 sensors, so no need to program it until I use it.

I got a flat yesterday and I'm happy to report that after driving a couple of minutes on the spare, the low tire warning turned off by itself, so it definitely read the new sensor with no programming needed!

BTW I also removed the Styrofoam liner and the cover is only raised a tiny hair - barely noticeable.
All said, I'm glad I did it. definitely beats driving on a donut spare - especially in the rain.

kajtek1

Yeah. MB has directional antennas, who will detect sensor position. On bad side, it might take long time, so when you start the morning with flat tire, by the time TPMS will become active, your tire might be in shreads.
On my dually Ford I had to buy special tool to reposition the sensors in memory when dealer screw it up.
But then I have pressure reading on instant.
Why don't manufacturers include spare, beats me? I am rare one, who checks spare tire pressure every year, and unused rubber loose the pressure much faster than used one.
So I assume most of the owners, even if they will change the wheel, might find it low on air afterall.