lovemybenzo

I changed my tires to regular from the run flats, now I need to purchase a spare? Any suggestions, I need help?

ua549

There are several threads about spare tires. I purchased mine from a MB dealer. Whatever you purchase make sure the spare tire revs per mile matches that of the tires on your car.
In the case of an E300 with 245/45-18 the matching spare is a 135/70-19. The MB spare wheel does not require shorter lug bolts as most generic spare wheels do. Generic tools will work. I do not recommend purchasing the MB tools because they are several times as expensive as at Walmart.
Here are some specs:

Djackson13

Hi, just checking to see if you received any responses on purchasing a spare tire. I am considering going away from the run-flats on my 2015 s class and will also be looking into purchasing a spare. Any feedback you can provide will be appreciaed

ua549

There are several spare tire discussion. Here is one.

donaldm241

Look at Modern Spare Tire kit website. They have spare to fit plus the jack kit for approx $400 https://modernspare.com/contact-us/

lovemybenzo

Thanks for the info, so what is the jack in the trunk for?

Camaroguy72

this. Or a roadhero kit is what I purchased before modernspare was an option (just under $400 shipped from the UK )

dudley07726

We have 2018 E400 Coupe with 19 inch RFT’s that I wanted to replace with conventional ones. It was such a hassle. No dealer would confirm that the part number for the compact spare would fit my car. MB USA wouldn’t confirm it either.
in the end, I ended up purchasing a reconditioned wheel from Ebay to match the ones on the car. Ended up taking one of the RFT’s and put that on the wheel and will use that as a full sized spare if we take the car on a long trip.
turned out to be easier and cheaper than buying the compact spare.
https://www.ebay.com/itm/Factory-AMG...IAAOSwy11elgvh
Above link is what I purchased but not from the people that are selling it here.

E300-18

If you have a jack, might as well test it out to see if it works for you. My car didn't come with one. I bought my spare tire from https://www.mercedespartshub.com/

The dealer was NO help for me. I found that quite frustrating.

ua549

Any generic scissor jack with a rectangular flat pad on top will work. The MB has an indented jacking point designed to fit the flat pad. I bought my jack at Walmart. It fits perfectly.

lovemybenzo

Ok thanks for the info, I did look at modernspare.com. So I'll be purchasing that spare.

jhpmbusa

what did you replace it with and how much better is it compared to the run flats??

JTK44

FYI:

I have a 2019 E450. Tires are 245/45X18 run flats. In the event of a flat, I carry a high quality air inflator, in my trunk. Hopefully I will be able to use the inflator to keep the pressure up in my run flats, so as not to ride on the sidewalls and destroy the tires, as I try to limp to a gas station to have the flat fixed.

I have decided not to use the sealant as it will ruin the TPS system and coat the wheels. After two hours, the sealant hardens and I have read that is cheaper to replace the wheel than pay to have the sealant removed.

As to a spare:

Just went to: https://modernspare.com/product/2017...-modern-spare/

and had a chat session:

The sku for the spare is SKU: MERE1726W

The price is $279.95 plus $40 shipping - no tax.

I already have a scissor jack, and other equipment to remove and change a tire.

My problem is that the spare does not fit in the well in the trunk and I really do not want to give up the space in the trunk for the spare.

Hope this helps.

lovemybenzo

I replaced with them with Goodyear Eagle Sport , I like the ride.