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Check your tyre pressures

Always good to keep a eye on them.when i did the sister in laws no tyre was above 25 psi an one was at 12 psi.could not belive she was driving the car with her 2 young kids in it. Ablivious to the pressures.
 
azibux1 said:
True.. but those systems are ABS sensor / rolling resistance based rather than PSI (which some cars do have)... takes quite a pressure hit before they signal usually, not too accurate

Best to check them properly I say :)
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I'm not sure actually...in both my car (M135i) and my wife's (Evoque) they have proper pressure measurement and it's accurate to about 1 PSI according to my tyre pressure gauge. I accept that's only a small sample of cars, but I'm not sure what the actual legal requirements are now the law has come into force.
 
Havana_UK said:
I'm not sure actually...in both my car (M135i) and my wife's (Evoque) they have proper pressure measurement and it's accurate to about 1 PSI according to my tyre pressure gauge. I accept that's only a small sample of cars, but I'm not sure what the actual legal requirements are now the law has come into force.
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Afaik the law is just a light if a tyre is dangerously low, yours will have proper tpms modules in the wheels that directly measure pressure, so over and above what the law requires but still a good feature.
 
Normally about once a month, they are usually quite good and don't drop much in that time, then you get one tyre dropping 5 psi which sort of freaks me out a bit and I check weekly for a while.
 
I use the Ring RAC630 however due to the screw on design you always lose varying amounts of air whilst undoing the connector.

So I normally overfill the tyres by a few PSI then bring them down using my Race X gauge.
 
Amos91 said:
I use the Ring RAC630 however due to the screw on design you always lose varying amounts of air whilst undoing the connector.

So I normally overfill the tyres by a few PSI then bring them down using my Race X gauge.
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Is that an auto compressor i noticed with mine it overfills slightly to allow for releasing the hose.
 
Car tells me when to add air, currently got a slightly leaking TPMS valve stem which needs sorting.

Never had much luck with 12v compressors, if you car needs reasonable air pressure and you run the compressor for a while they simply wear out, also takes an age to fill up.

I have a 240v compressor and it seems to be excellent.
 
Never had an issue with the Audi 12v pump, but cheaper ones have always been utterly useless in my experience.

Useful in an emergency, but at home as with yourself, I'd choose a mains one every day.
 
El1te said:
All my tyres are nitrogen inflated, seem to keep the PSI for a longer period as opposed to the standard air. Usually last about 4 months before the pressure starts dropping on them.
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Hahahaha, I bet you paid for it as well didn't you. :D
 
I've got into the habit of checking pressures every two weeks. Ever since I had to replace two "good" tyres because I'd run them under-inflated, I'm a lot ore careful now.
I've got one tyre that loses approx. 5% pressure each week but unfortunately nobody seems able to find the puncture.
Three of my tyres are at 31-32 when I check each fortnight, whereas this one is always at 27-28.
No biggie, but I'd like to get in a situation where I can forget to check and not worry about one under-inflated tyre.
 
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