Prschntr

So I found a 1inch screw in my passenger rear tire a month ago. Near junction of treads and side wall. I pulled the screw out and took my car to the local German service shop. They said the tire looked fine.

I drove it for a month. No issues with leak and no messages from the TPMS.

Last week I found it completely flat after sitting in the parking garage all day. I did the repair with the sealant as described in the manual and was able to drive home with the tire at full pressure.

Swapped out to winter wheels the next day -- just timed out I had planned on doing it anyway.

My question is. -- With the sealant in the tire can I re-use it, or do I need to buy a new one. Do I buy two?

Al.Fresco

You need a new tire. Based on your explanation of where the original screw hole was, it seems advisable that you should have gotten a new tire when the initial damage was done. How many miles on your rears? That will tell you if its best to get 1 or 2.

BIG smoke

German service shop? No way Porsche shop would have plugged it.
Generally if in the tread, a tire shop will plug and patch.
Run flat tire. Few will patch or plug.
If your running snow tires. That means you are in a cold place.
Maybe now's the time to shop for new summer tires???
No one wants to inventory over the cold cold winter?
Two new rear? Keep the old good one for your own spare.
You never need one, if you have one.
I always has a air compresor, tire goo (not expired) and tire plugs in my trunk or frunk.

Prschntr

Mark993TT

DBH

I had a similar issue. Although the screw was actually in the tread area. Drove it to my Porsche dealer who refused to patch. So, I took it to the local Goodyear dealer. They said, sure we'll fix it. They took the wheel off the car and pulled the screw...no air came out. They put it in water...no bubbles. The tech said, put it back on the car and check pressure periodically. No charge - thank you! A year+ later I sold the car with the tire still on it. OBTW, believe it or not, I still have that screw. It's a 3/4 in. Philips machine screw. The head is worn at a steep angle, so it didn't go straight in and penetrate the tire.

OP, you probably should replace both rear tires (same brand, model and size) at that mileage. Fronts tend to wear twice as long the rears.

bkrantz

Well, at least since the rears wear faster than the fronts, you are likely to balance out the longevity of the set.

Dkk16

hbear

Prschntr