Why does Audi suddenly display low tire pressure?
2 Answers
Audi suddenly displays low tire pressure for the following reasons: If no visible damage is found, simply inflate the tire to the normal pressure and reset the tire pressure system; If a puncture is discovered upon inspection, drive to a tire shop promptly for repair, then reinflate the tire; If the low tire pressure warning reappears after inflation without any punctures, it may be due to air leakage caused by a deformed wheel rim. It is recommended to inspect and replace the wheel rim. Hazards of low tire pressure: Increased friction with the road surface leads to higher fuel consumption; Causes heavy steering and alignment issues, compromising driving safety; Increases movement in various parts of the tire, leading to abnormal heating due to excessive rolling; Reduces the functionality of the cord and rubber, causing delamination or cord breakage, excessive friction with the rim, resulting in bead damage and abnormal wear; Dramatically increases friction with the ground, rapidly raising tire temperature, softening the tire, and drastically reducing its strength. High-speed driving may lead to a blowout; Increases tire body deformation, making the tire side prone to cracks, and generates flexing movement, leading to excessive heat, accelerating rubber aging, cord fatigue, and breakage, while also increasing the tire's contact area with the ground, hastening shoulder wear.
I've been driving Audi cars for over 20 years and found there are quite a few common reasons for sudden low tire pressure warnings. The most frequent cause is a punctured tire, like accidentally running over a nail on the road, leading to gradual air loss that triggers the warning light. Another possibility is a loose or aging valve stem that's leaking, which happens more often in cold weather as temperature drops naturally reduce tire pressure. I once encountered this - after seeing the warning, I stopped to check and found a small stone had slightly cut the tire. Additionally, Audi's tire pressure monitoring system can sometimes have minor issues, where sensor battery failure or software errors might cause false alarms. I remember in summer when tires get hot, pressure changes can also trigger warnings. The solution isn't difficult: first check actual pressure with a gauge, inflate and reset the system if below standard; if there's obvious air leakage, get it patched or change to the spare tire immediately. Safety first - never ignore this warning, and regular tire inspections during maintenance can prevent trouble.
