I merged onto a three lane highway and sped up to about 70 mph. After about 5 minutes I start to feel a slight vibration throughout the MINI, right onto the steering wheel. The road has been covered with some snow and ice and I assumed it was from the road surface. On a clear patch of road I slowed down to 60 mph but MINI is still vibrating. It did not effect the handling or steering. The MINI did not veer right or left but continued in a straight line. My daughter thought a front tire was flat, but no warning light was on and driving was OK other than the slight vibration. So I continued on to my exit, dropped my daughter off and went to the service station to check my tire pressure. All the tires except the right front were about 30 psi. The front right did not even read on the gauge. It was flat. I have not checked my tire pressure since November 04 when the factory snows were installed. It was dark and difficult to read the gauge or the recommended air pressure on the door. So, I filled up all the tires to about 35 psi. On the way home the MINI was back to normal. After three days of driving the air pressure is the same. Will take the car in to check for slow leak eventually. Anyone else have a flat with no dash light? Is there some air pressure loss when the light comes on? If it was a slow leak it is odd that there was no vibration up to that day as I highway drive every day.

 

I don't have Run Flats but when I got a screw in my tire the light lite up on the gauge. The ABS Brakes should be reading the pressure to see if you have a flat. But it might be the fact that you have Run Flats. Not exactly sure but thats my take on my tires experience!

 

i bought my car saturday and picked up a nail. front left tire. the car started to pull left and after a few minutes the i heard the warning noise and the light lit up on the speedo. car was certainly drivable. yes, i have run flats.

 

On my way to work one morning, approximately 3 months after I took delivery, I heard a binging noise from the IP and noticed that the tire monitor was flashing. I was traveling at about 75 MPH on the Dan Ryan Expressway in Chicago and there was no good place to pull over and check. The car did not drive or ride any different, so I continued on.

Once I got to work, I checked all four tires and could hear air leaking from the left rear tire. The pressure was near zero. The closest Goodyear shop that was equipped to handle run-flats was near my house, approximately 25 miles away. At the end of the day, I drove home, trying to keep my speed to around 50 MPH. Rush hour traffic certainly helped. I brought the tire into the Goodyear store, where it was fixed without problem. (Puncture was in the tread).

If it wasn't for the pressure monitor, I would never have known about the loss of air pressure until the next time I checked my tires. I am a firm believer in run-flats.

04 MCS DS/B, 17" Goodyear Run-flats

 

How come there is a lot of negativity towards run-flats? I have them and think it is easier to have those tires than take the extra weight of a spare. I know people say the ride is rough on run flats but is that the only reason? just curious

 

oh and what happens if you press the reset button next the the E brake by mistake. I think I might have pressed it the other day by mistake, does that matter or effect anything?

 

i would think the "rougher" ride is more due to the low profile rather than the run flat feature. i run low profiles on one of my other cars (no run flat) and the ride is about as rough.

 

I wondered if I would replace my run flats with non run flats but since my wife is the primary driver I will replace them with run flats so she can just drive home and not have to wait for someone to come and change the tire.

 

The sensor has worked 2 times for me.Non runflats on my MC,first time bad bead,second time screw in the tire.Used the reset to make sure I was not losing to much air,heading to get both fixed.
I like the sensor,saved me having to buy new tires

 

Other reasons would be weight and handling. But if you're into a rough-riding, heavy tire with sub-par handling, they're awesome!

 

The sensor went on Saturday and I pulled over and all the tires looked fine. I reset the sensor and went on my way. Oh, no runflats either. The rfs transmit all of the bad roads here to the suspension and chassis. I'd rather have the tires absorb some of the force instead instead of the car.

 

I think you are okay as this is just the reset button. Make sure the air is okay in all the tyres and press the reset button afterwards. The light goes out by itself after some time and you should be okay until the next flat which hopefully never occurs but I live in POTHOLE HEAVEN aka Detroit roads.