Can the Audi Q5 with all-wheel drive failure run long distances?
2 Answers
Audi Q5 with all-wheel drive failure cannot run long distances and requires immediate replacement of the differential. Composition of the differential: The car differential is a mechanism that allows the left and right (or front and rear) drive wheels to rotate at different speeds. It is mainly composed of left and right half-shaft gears, two planetary gears, and a gear carrier. Function of the differential: The function is to allow the left and right wheels to roll at different speeds when the car is turning or driving on uneven roads, ensuring that both drive wheels perform pure rolling motion. The differential is installed to adjust the speed difference between the left and right wheels. In four-wheel drive, to drive all four wheels, all wheels must be connected. If the four wheels are mechanically connected together, the car cannot rotate at the same speed when driving on curves. To allow the car to rotate at a basically consistent speed during curve driving, an intermediate differential is added to adjust the speed difference between the front and rear wheels.
Last time when I was driving my Q5 to Qinghai, the 4WD fault light suddenly came on. I immediately pulled over to check the manual and called the dealership. There are two types of Quattro system failures: if it's an electronic multi-plate clutch error, the system defaults to rear-wheel drive and you can keep driving, but it increases fuel consumption and damages the transfer case; if it's a mechanical component failure and you force it to drive, you'll be calling for a tow truck in no time. The worst scenarios during long-distance driving are prolonged high-speed cornering or driving in rain/snow when the four-wheel power distribution fails, which can cause the car to fishtail. It's recommended to immediately turn off auto start-stop, switch to manual mode, and drive at low speed. That time, I managed to drive 80 km to the nearest service area repair shop, but the mechanic said if I had driven another 50 km, the differential would have been completely wrecked.
