What are the reasons for Audi showing insufficient tire pressure in the right rear tire?
2 Answers
Audi cars displaying insufficient tire pressure in the right rear tire indicate a change in the standard tire pressure, mainly caused by tire leaks, tire damage, or wheel hub deformation. If no damage is found when checking for low tire pressure, you can directly inflate the tire to the normal pressure and reset the tire pressure system. If the tire is found to be punctured during inspection, it is necessary to drive to a tire shop promptly for repair and then reinflate the tire. If the tire pressure warning reappears after inflation without any visible punctures, it may be due to air leakage caused by wheel hub deformation. It is recommended to inspect the wheel hub and replace it if necessary. Hazards of low tire pressure: Increased friction coefficient with the road surface, leading to higher fuel consumption; Heavier steering wheel and increased tendency for the vehicle to drift, which are factors detrimental to driving safety; Increased movement of various parts of the tire, causing abnormal heat due to excessive rolling; Reduced functionality of the cord and rubber, leading to delamination or cord breakage, and excessive friction between the tire and the rim, resulting in damage and abnormal wear at the bead area; Exponentially increased friction between the tire and the ground, causing a sharp rise in tire temperature, softening of the tire, and a rapid decrease in strength. High-speed driving may lead to tire blowouts; Increased deformation of the tire body, making the tire side prone to cracks, along with flexing movements that cause excessive heat, accelerating rubber aging, fatigue in the cord layers, cord breakage, and increased tire contact area, which accelerates shoulder wear.
Oh, my Audi also kept showing insufficient tire pressure in the right rear tire last year. After checking, it turned out the tire was punctured by a nail and leaking air. That time, I felt the wheel was floating while driving on the highway. It could also be due to aging or loose valve stems, especially in older cars where components wear out over time. Sometimes the system sensors give false alarms, like inaccurate tire pressure readings in cold temperatures when there's actually no leak. I recommend using a tire pressure gauge to check immediately. If the right rear tire is indeed low, add some air or get it patched. If the tire pressure is normal, it might be a TPMS module malfunction, and it's best to have the electronic control system checked at a 4S shop. Never ignore it, as tire issues can easily lead to blowouts and affect safety. Checking tire pressure monthly can prevent these problems—it's simple and hassle-free. Audi parts are reliable but a bit expensive; just get them fixed when needed.
