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Tesla Air/Sealant kit, what is the hole for?

In preparation for the arrival of my MS, next week, I ordered and just received the Tesla tire pump kit. For those that have it, can you tell me what the hole in the middle of pump is for. Also, can the sealant canister be refilled/replaced.

The pump came with reasonably good instructions. If they don't mention the hole you can probably ignore it.

Some other related info:
http://www.teslamotors.com/forum/forums/tire-sealant-properties

Well yes it explains how to use it both with the sealant or just as an airpump. However that doesn't tell me how or if the sealant can be replenished.

I was told we have to buy entire apparatus, but hoping they were wrong

SC told me they can install new sealant cartridge for about $15.

$15!!!!? I can buy a can of Fix-a-flat for half that price.

I will add this question to my growing list of things to ask when I pick up my car next Sat.

Be certain to ask if the generic fix-a-flat will foul your pressure sensors.

I have a couple cans of Fix-a-Flat and I know for a fact that one of them says it's TPMS friendly. Since all cars sold in the U.S. starting in 2007 have to have the TPMS, I would imagine that all brands of sealent in a can would be TPMS safe.

The wide stated operating temperature range, -37C to 82C, is what surprised me. How does this compare to Slime or Fix-a-Flat?

The included instructions also mentioned that more documentation is included in the owner's manual accessible from the touchscreen. Unfortunately, there are a few editing errors in that section, confusing the answer to "where to buy a replacement canister". In any case, your service center is the answer.

I speculate that the hole in the middle of the tire repair kit is for cars that have a spare tire mount (a threaded bolt). Instead stowing a spare tire on the mount, you could stow the tire repair kit securely in the same spot, held down by the bolt.

Of course the Model S has no spare tire mount, and no threaded bolt.

Fortunately, the repair kit fits nicely in the cubby hole on either side of the rear foot well, and it fits snugly there if you put the UMC bag right next to it, in the same spot.

As for using the tire repair kit and replacing the canister, see pages 94-97 of the Model S Owner's Manual. (If that link doesn't work, go to the "My Tesla" page and scroll down to the "Documents" section.)

Most troubling, however, is this statement on page 94:

  • "Warning: Do not exceed 30 mph (48 km/h) when driving with a tire that has been temporarily repaired with sealant."

I guess that was written for liability reasons. Seems like traveling at 30 mph on a freeway would much be riskier than going 55 mph on a repaired tire, assuming the repaired leak was reasonably small.

The tire sealant is more like $35 to replace. I used my tire sealant. Unfortunately Tesla didn't seem to ever have sealant in stock so I ended up replacing the entire kit.

I gave stayed with the Tesla sealant out of concern of damage to the TPMS.


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