So this morning I wake up and go out to my 2 week old 2018 C63S Coupe to drive to my step kids football game. I back out of the garage and drive 500 feet when my TPM comes on and says 0 pressure in the front drivers side tire.

I immediately pullover and check the tire, which of course is flat. I gingerly turn around and drive back to my driveway and inspect the tire and find a screw in othe tread on the inside 1/2 of tire.

Knowing there is no spare and my Porsche is at my other house, I call MB Roadside. Of course they tell me that my car needs to be flatbedded to the dealership. I explain that it is Sunday and this is my only form of transportation and just need the tire plugged and I will head to dealer tomorrow. MB roadside tells me that due to liability issues, they can’t plug the tire.

The tech comes, btw in less then 15 minutes which was awesome, and I nicely requested that he plug the tire so I have transportation for the day. Thankfully, he agreed.

Of course he he jacked up the car, removed the wheel (nicking the black wheel in the process), attempted to pull out the screw that was in the tire and snapped off the head of screw. Now he takes a drill and drills into the tire to get the body of the screw out and end up pushing it in between the tire and wheel. He then inserts 2 plugs because air was still leaking because he drilled the puncture bigger. Finally filled with air and remounted the wheel on the car.

It held the the air pressure thruought the day.

The question is should I just have my Michelin Pilots A/S 3+ tires installed now because the front MPSS is compromised because of the plug?

Or should I just buy a new front tire or leave the plugged tire on the car for another month before putting on my Winter setup?

 

Replace the tyre and be sure you are safe. Sounds like a bodgie repair job to me.

 

I have had good luck with small plugs. Depending on the location, and the quality of install, some work and some don’t. Sounds like from your description, this one ended up being pretty big.

We recently had a plug on the front tire hold well for about a month, then started to lose air again. I replaced the tire after that.

 

Definitely compromised at high speeds!!!

 

Dumb question time: why did he try to pull it out instead of unscrewing it? Make sure you drive below 40mph, get some new rubber and wait till it gets colder before replacing the wheels.

 

Has anyone tried the goop air pump stuff in the trunk to fix this sort of thing?

 

It's a runflat. Drive it to the nearest repair shop for proper repair.

 

These tires are NOT runflats

 

Never plug a tire on a car like this--- always patch from the inside of the tire.

And to add, you have two plugs---- just take into America's tire who does free flat repair; get it fixed right and tip the guy 20 bucks.

 

I actually brought the car to the dealership this morning.

They replaced the MPSS for free because the car was very new and the service advisor is a great guy. I had them put on my Pilot A/S 3+ anyway and store the summer tires for the winter.

Car is is still there because they had to repair my passenger side window which was squeaking and wouldn’t auto close. They are replacing the track which was defective and I’ll get the car back on Wednesday

 

My bad,

The statement, " there was no spare," caused me to erroneously assume the vehicle had runflats.

 

Since "your Porsche is at your other house", spend the money for a new tire and make sure you and your kids are safe on the road!

 

I agree.