What Causes the Clicking Noise When an Audi Starts Moving?
2 Answers
A clicking noise when an Audi starts moving may be caused by the following reasons: 1. Hydraulic lifters: Air entering the hydraulic lifters due to low oil pressure or wear in the lifters themselves. 2. Valve clearance: Excessive valve clearance caused by wear in the valve rocker arms. 3. Dirty throttle body: Accumulation of sludge and carbon deposits leading to a dirty throttle body. 4. Carbon canister purge valve operation sound: This is a normal sound and the vehicle can continue to be used. If the noise is too loud, it is recommended to have it checked at a 4S shop. 5. Three-way catalytic converter: A 'clicking' sound within the first half-minute after a cold start, which then disappears, is usually due to the expansion of the three-way catalytic converter as it heats up.
Hey, after driving for so many years, the most annoying sound to hear is that clunking noise, especially when starting off. For Audi cars, if there's an issue with the suspension system, like worn-out shock absorbers or loose control arms, it can cause abnormal noises and make the whole driving experience feel unstable. In terms of the drivetrain, worn CV joints are also a common cause, producing strange sounds when turning. Additionally, if the brake calipers aren't properly secured, they might make a rattling sound when accelerating from a stop. In short, this is no small matter. I recommend getting the chassis and suspension components checked as soon as possible. Otherwise, you'll constantly feel like the car is protesting while driving, which affects your mood and is dangerous. Regular comprehensive inspections can prevent small issues from turning into big troubles. Safety first, right? Let's not delay until we regret it.
