Tire Bulges

pharding · 10-08-2007, 10:56 PM

My 330 has modest bulges on 3 out of 4 tires. What causes this? Are they covered by warranty?

Hotan Braskey · 10-08-2007, 11:07 PM

Tires are not covered under warranty, but most tires have a warranty apart from the car from the tire manufacturer. This of course depends on how old and how many miles you have on your tires, but bulging is no good and you should have it looked at.

Orient330iNYC · 10-08-2007, 11:09 PM

usually caused by impact damage with potholes and the like.
the bulge is a broken ply in the sidewall allowing air to leak into the thinner rubber shell of the sidewall. this bubble can pop and cause an almost instant deflation.

not covered by warranty as its a roadhazard.
unless you have roadhazard insurance.

Silvr&Blk · 10-09-2007, 12:15 AM

Quote:

Originally Posted by pharding

My 330 has modest bulges on 3 out of 4 tires. What causes this? Are they covered by warranty?

Unfortunately you're facing one of the most common pitfalls of the RFT tire which will not be covered under warrenty. RFT technology reinforces the sidewalls of the tire making it more rigid than the normal non-RFT tire therefore allowing it to run flat. When the tire receives impact (pothole, railroad tracks, etc.) the side walls are not as forgiving and thus a break occur between the "ply" or "beads" of the tire sidewall therefore causing a bulge. You will need to replace soon as it is a blowout waiting to happen.

My previous rant: http://www.e90post.com/forums/showpo...0&postcount=10

SunnyvaleCA · 10-09-2007, 04:06 AM

Properly-working tires are really important. Run flats or not, you should have them looked at as soon as possible. Even if you are using run-flats, a tire blow out (or several simultaneous blow outs) is a serious matter. You don't want to be running around with damaged tires; no need to be asking for trouble.

10-08-2007, 10:56 PM	#1
pharding Major 311 Rep 1,130 Posts Drives: 23 Audi Q4 e-tron + 14 X3 28i Join Date: Mar 2005 Location: Chicago iTrader: (0)	Tire Bulges My 330 has modest bulges on 3 out of 4 tires. What causes this? Are they covered by warranty? __________________ 23 Audi Q4 e-tron; 23 i4 M50 on order 14 X3 Retired: 20 Tesla Model 3 LR AWD; 17 540i x; 14 550i Euro Del; 11 550i Euro Del; 08 550i Euro Del; 06 330i Euro Del; 04 545i Euro Del; 01 530i Euro Del
	Appreciate 0 Tweet Quote

10-08-2007, 11:07 PM	#2
Hotan Braskey Private First Class 2 Rep 184 Posts Drives: 1M on Order- VO please Join Date: Jun 2005 Location: Maryland, USA iTrader: (0)	Tires are not covered under warranty, but most tires have a warranty apart from the car from the tire manufacturer. This of course depends on how old and how many miles you have on your tires, but bulging is no good and you should have it looked at. __________________ If all the animals below the equator were capable of flattery, then Thanksgiving and Halloween would fall on the same day.
	Appreciate 0 Quote

10-08-2007, 11:09 PM	#3
Orient330iNYC Brigadier General 1792 Rep 3,995 Posts Drives: 2023 X7 40i Join Date: Apr 2007 Location: Wall St iTrader: (2)	usually caused by impact damage with potholes and the like. the bulge is a broken ply in the sidewall allowing air to leak into the thinner rubber shell of the sidewall. this bubble can pop and cause an almost instant deflation. not covered by warranty as its a roadhazard. unless you have roadhazard insurance. __________________ Present: 2023 G07 40i ZDH/ZDU/ZMP/ZMQ/2NH/ZPK/ZPP/ZRC/300/3AC Past: 2013 335i 6MT ZMM/ZDH/ZTP/3AG/494/508 Past: 2016 F34 335i xDrive ZCW/ZDA/ZDH/ZTP/ZMP/2V5/5DL Past: 2019 G01 M40i ZDA/2VF/ZPP/ZPX/688/3AC
	Appreciate 0 Quote

10-09-2007, 04:06 AM	#5
SunnyvaleCA Enlisted Member 0 Rep 36 Posts Drives: 1998 C43 AMG Join Date: Jun 2007 Location: Bay Area iTrader: (0)	Properly-working tires are really important. Run flats or not, you should have them looked at as soon as possible. Even if you are using run-flats, a tire blow out (or several simultaneous blow outs) is a serious matter. You don't want to be running around with damaged tires; no need to be asking for trouble.
	Appreciate 0 Quote