Nail in a Continental

Nail in a Continental

Got a dash alert that the right rear tire was down to 35 lbs in my x. Took a look and saw a roofing nail in the tread.

Pressure stayed stable at 35 lbs, so I drove over to a nearby tire shop.

They had a little trouble getting the chrome caps off before using an air wrench to remove the wheel nuts.

First time they had seen a continental tire with the foam installed. They scraped it away and installed a cool looking plug with a pointed needle on one end and a big blob of sealing material at the other. They drilled out the nail hole to make a calibrated hole before inserting the plug.

Plug did not seal well, so they removed it, used a air driven brurr scraper to get down to the bare rubber and provide a rough surface for the plug material to seal.

That did the trick. Been driving several days on it and it is holding pressure stable.

If you get a flat, mention that they need to get rid of 100% on the foam material where the plug will sit in order to get good adhesion.

Charged me $35.00. Know that some shops will fix them for free, but it happened on a Sunday afternoon when few shops were open. Took about an hour. Was happy they were open and consider it good value.

Tires are now about 50% worn at 22,000 miles. Will get a fresh set next year.

vpoz | December 4, 2018

Will be interesting to see how the repair lasts in view of the loads due to vehicle weight and tire inflation pressure.

PrescottRichard | December 5, 2018

If you have to dig out a bunch of foam to repair the tire do you also have to re-balance it?

joemar10 | December 6, 2018

I got my first flat plugged at a local speed shop whose owner has a Tesla and said that he has plugged his own tires. This was probably 20,000 miles ago. I bought a plug kit and did it myself for my second flat around 10,000 miles ago. Didn't even take the tires off the car for either one. Since both repairs, I've driven my Model X 100D from Chesapeake to Vancouver through the Canadian Rockies and back. A lot of 80 mile an hour driving on that trip and no problems at all. The car and the tires now have over 28,000 miles on it.

joemar10 | December 6, 2018

That's Chesapeake, VA | December 6, 2018

You were lucky. Model 3 Continental with nail in tread but outboard of the outermost groove = replacement. They will not plug in that case. $265 please....

Yodrak. | December 6, 2018

A patch is better than a plug, perhaps even essential for something like a glass cut, but for something that's 'clean and neat' like a screw or nail, a properly inserted plug should work just fine. Unless at or on the sidewall, then yes a new tire is required because neither a patch nor a plug will work.

Need to remove some foam for a patch, but not for a plug.

joemar10 | December 6, 2018

These were both dead center on the tread. Both in thick area of tread, as opposed to in the groove. I have had probably 10 tires plugged over the 60 years I have been driving. Only 1 issue when the tire guy pushed the plug in perpendiculat to the tread when the original hole was on an angle. It''s not rocket science.