Seeking info on purchasing a spare tire
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:
Tire size 245/45R18 26.7 revs/mile
Bolt pattern 5x112
Stud Dia & thread size m14 x 1.5
Center Bore 66.6 mm
MB Compact spare: 213-400-06-00 (135/70-19)

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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.
Last edited by dudley07726; Jul 2, 2020 at 02:10 PM.
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The dealer was NO help for me. I found that quite frustrating.




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.






