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A part of the tire broke off but I'm not sure if it's significant. How can I tell if the tire is losing air? Tire pressure seems to be OK for now. It's a Volkswagen Jetta 2008.

What it looks like:

enter image description here

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    There is no way I would drive on this. – Lynn Crumbling Apr 12 '16 at 15:17
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Thanks for the image.

Depending on how deep that tear/slit is, you may have to either get it checked or patched.

You can take a note of the pressure in the tire as it sits currently, then in a few days check if it has any loss (significant loss) of pressure, if so, then may have breached the cavity.

If the tear/slit is not so deep, you could possibly pick up a tire repair kit from your local service station or auto store.

NOTE: If it at all becomes or starts feeling weird or strange to drive on, and you feel unsafe, get it looked at immediately.

(Also, this is my general knowledge of what I would do if I were in the same position)

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  • I've never heard of a tire repair kit that fixes superficial damage to the sidewall of the tire. Is this really a thing? Do you have any sources to reference? – JPhi1618 Apr 11 '16 at 14:17
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    If you're going to have the tyre sidewall repaired, check your local legislation. In the UK no tyre repairer will entertain fixing any damage that's beyond the confines of the tread pattern. – Steve Matthews Apr 11 '16 at 15:19
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    Looks like Steve would be right "pneumatic tyre shall not be used on a road, if—" ... "the tyre has a cut in excess of 25 mm or 10% of the section width of the tyre, whicheveris the greater, measured in any direction on the outside of the tyre and deep enough toreach the ply or cord" google.co.uk/… – Mauro Apr 12 '16 at 15:36
  • That size and location is ideal for suddenly/explosively losing tire pressure while at speed if you hit a small bump (or possibly just from driving) and you really do not want that to happen. For the cost of a tire vs the cost of suddenly losing control - do the sensible thing and replace it. – Rory Alsop Apr 12 '16 at 18:49
  • You CANNOT patch sidewall damage - ever. The tyre MUST be replaced. – Nick Apr 12 '16 at 19:04

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