slk55er

Well, I'm not sure it is so "obvious" 'cause there is a good bit of space around the edge of my space saver spare in the wheel well. I don't have access to my trunk at this time to check myself but it seems like I saw a 2021 on my dealer's showroom floor with a full size spare in the wheel well. So that is why I suggested trying a stock wheel or at least measuring AND CHECKING THE DIAMETER OF the wheel well before ordering anything. You are correct about the narrow possible wheel with the high aspect ratio to match the overall diameter and that a spacer will likely be needed. This may also depend on model number and exhaust options.

"AND CHECKING THE DIAMETER OF" added because it was not "obvious" to "threeMBs" that this is what I meant. Of course it is "obvious" that the stock wheels/tires are too wide to fit in the shallow wheel well and allow the trunk floor cover to close and lie flat.

threeMBs

There is no full size spare for these SUVs, nor ever was for previous generations. There are two types of spares MB is using for these cars, depending on option(s) - space saver (inflatable one) or donut (full or close to full stock diameter already inflated temporary use tire on extremely narrow 4-5" steel "wheel"). That is why it is obvious. The chance of full size tire/wheel (forget about even trying stock's) fitting into donut wheel well area is the same as fitting a stock wheel/tire (even the front) of your SL's in its trunk (though donut tire/wheel does fit in SL's trunk, but that is for a different forum).

mikapen

It's not obvious to me, either. While we don't know what kind of GLE you have or don't have (maybe you could put your car in your profile), there is a lot of room around the V167 spare, and if the trunk liner is removed, there might be enough room for a standard wheel/tire. With the liner in place, a 28" X 9" tire will fit without coaxing. Maybe a 31" tire could fit with the liner removed. That's the approach we will be taking with our GLC, and there are lots of posts on that forum (X253) about real tires being used as spares.

You are correct that recent M-B SUV's don't have full sized spares, but @James1974 and @slk55er are talking about finding a regular combo that might be usable without the "under 50mph for 70 miles" restriction.
I am used to sacrificing part of my luggage space for a spare. My first ML was a 2010 Diesel, which came with runflats (which I refused) because the DEF tank took ALL the spare space. IMO it's preferable to have a real spare, even though I'm quite well prepared to plug / repair a flat on the road.
Looking forward to any new finds!

BTW this IS the forum for AMG 53's.

threeMBs

^^^ Why don't you try putting your front wheel/tire in your spare wheel well (modified or not), THEN post!

mikapen

That's what forums are for! Give input, wait for non-combative response. Maybe find a solution.
At least I have my forum and information correct, as do the above-mentioned posters!
Have you seen a V167 tire well? Have you tried your "tip?" TIA.

whitewagon

On longer trips or off the beaten path, get a roof rack and mount tire on it along with a proper jack... if there's a will, there's a way.

slk55er

Sorry, this is a bit off topic but you're comment prompts me to mention one experience I had: In 1983 I did a BMW factory tour in Stuttgart and picked up a 633CSi. I bought an extra wheel at the factory and actually brought it on to the airplane as carry-on luggage and storef it in the overhead bin. When I borded in the plane the German flight attendant said "Well, where there's a wheel, there is a way." True story.

threeMBs

The suggestion in post #24 was "I'd check that one of your stock wheel/tire combos actually fit into the spare wheel well". My reply to that was "obviously not" which is disputed by two of you. The issue is not as much the diameter as the hight of that area (the width of stock front wheel/tire, forget the rear). Do you realy think that 275/45-21 on 10" wide wheel or even "better" 285/40-22 on 10" has any chance to fit there AND you could close the floor lid without MAJOR modifications?

(Not even mentioning putting an 80lbs "thing" there, and then needing to take it out.)

mikapen

I don't know the answer to that, but there's a lot of depth under there. I'll watch to see if anyone investigates. I may sometime.

Is that your spare? If so, what's the car and what's it's tire fitment? I hadn't seen a donut spare in a v167.

GregW / Oregon

This is my T155/80-R19 in my 2020 GLE 450.

mikapen

Oh yeah, now I remember. Funny cuz my 2020 hasn't even been gone for a year.

You have 21 inch non staggered tires don't you?

threeMBs

Oh ya? Care to post of what you actually have there? Did you take everything out and actually measure the depth to say "there's a lot of depth under there" (to be able to fit 275/45-21 or 285/40-22 on 10" wide wheel then to be able to easily lift it out of there even if it would fit, which I know it won't)?
The bottom line is - the full size spare has to be as narrow as possible for V167 GLE AMG63 (or 53 with 63 brakes): 255/55-20 tire (or 245/55-20 if you can find one) on 20x8.5(et 30s) to a. has any remote chance of fitting into modified wheel well and/or b. to be kept on occasions (out of town trips) in the trunk while minimizing the loss of trunk utility space. Those with 350s and maybe even with 450s, especially those 350/450 fitted with hideous 19" have a lot more options.

threeMBs

Funny I just realized that 155/80-19 is identical to W166 ML/GLE AMG63 donut tire at only 29"(actually under) diameter. I would not be mixing it with 31" diameter other 3 tires except for VERY short distance. Hence full spare is a must as per my post above (except for those with 19s).

mikapen

Make sure that the new bolts (bigger) will work with a W166 spare. Let us know what you find. Thanks.

mikapen

What is this - some kind of challenge? Geez. Please read my entire posts before getting all combative and playing like a Facebook antagonist.
No, I haven't removed the spare liner. No, I haven't bought a lot of other tire/wheel sizes and tried fitting them. Yes, there seems to be a lot of space under there, and removing the liner might gain 2" or more in diameter. My inflatable spare is 10" wide, and it fits under the floor. There might be another inch or three with the liner removed. To repeat: No, I haven't tried it yet.

Here's my spare - '21 GLE53 SUV, 21" wheels.

threeMBs

You elect to ignore parts of the info above convenient to your point of view. In images posted above fully inflated donut 155/80-19 tire is occupying identical compartment to your uninflected inflatable one. That area is only under 29" across. I would think law of physics precludes fitting an item with 31" diameter into area capable to accommodate only 29" max (not to mention the hight). Post #24 suggested trying stock in that area (without implying to modify it first). My correct "obvious" reply to it is what two of you object to. You both do not offer any proof to the contrary while having an issue with "obviously" stock won't fit. I'll use the feature of this forum to skip certain posters.

GregW / Oregon

At 28.8" d. the temporary spare is 2.1" smaller than a 315/40-21 (with new original tires, 1.7" when worn). That equates to about 7.2% higher revs/mile. Obviously Mercedes thinks this is acceptable for emergency use "for a limited time and in a restricted manner in the event of a flat tire." I agree that I would not want to be driving more than say about 50 miles on it.

threeMBs

When I installed 285/40-21 tires (instead of 295/35-21) on my ML63, I also replaced 155/80-19 donut with 175/80-19 donut. It did fit under the floor with lid being able to close flush. Made me feel much better with about 30" diameter on all corners to avoid any possible expensive issues.

slk55er

Excellent idea. Now you can chill out with a glass of wine. 🍷

RDT-G23

I need these pins but, now that he is out, can’t find them. I hope they are available soon as noted above by Steelman…. I also wonder if anyone has made a jacking puck to fit the latest GLE yet. I plan to use a 2x6” square in the void of having a puck (as noted above). Regardless, I’d buy a couple if someone makes a puck built for these vehicles.

slk55er

I use the jack pucks from Amazon shown in the links below, one red, one grey. I taped the pucks to the jack pad to stabilize them and allow them to turn with the jack's pad:

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

https://smile.amazon.com/gp/product/...?ie=UTF8&psc=1

foiegras

Gorilla has them.

https://www.ebay.com/itm/165278456044

mikapen

Two is the magic number.

RDT-G23

I ordered two this morning. We will see how they look.

RDT-G23

I got the the Gorilla pins; they look pretty good. Now - if I only had my GLE53 with which to employ them... I think I could be 3 months out...