
The Audi A6L with dual-clutch transmission cannot coast in neutral unless the owner does not want the transmission. The circulation and heat dissipation of transmission oil rely entirely on the rotation when in gear. Coasting in neutral stops this circulation. Introduction to coasting in neutral: During vehicle operation, the driver shifts the gear lever into the neutral position, separating the engine from the driven wheels' clutch, and uses the vehicle's inertia to continue moving. Coasting in neutral must be done under conditions that ensure safety and normal vehicle technical conditions. It is not allowed to coast with the engine off, especially when descending steep or long slopes. About fuel-saving claims when coasting in neutral: Automotive repair experts state that coasting in neutral does not save fuel and may sometimes consume more. This is mainly related to the working mode of electronically fuel-injected engines. Electronically fuel-injected engines can determine the amount of fuel injection based on computer programs. When in gear, if the driver releases the accelerator, the computer will put the vehicle into coasting mode, during which the engine does not inject fuel for a long period.

I've driven the Audi A6L many times, especially the dual-clutch version. From a professional perspective, it's best not to coast in neutral. When a dual-clutch transmission is in neutral, internal components may not receive sufficient lubrication, leading to premature wear or even overheating failures. Modern car engine management systems automatically cut off fuel supply during coasting to save fuel. Forcing the car into neutral not only wastes gasoline but also increases risks. I remember once helping a friend repair his car—the clutch plates were burnt out due to frequent coasting in neutral, costing nearly ten thousand yuan in repairs. In daily driving, keeping the car in D mode and letting the system manage itself is the most reliable approach—both safe and cost-effective. In the long run, following the manufacturer's recommendations can extend the transmission's lifespan.

As a driving enthusiast who frequently operates sedans, I've personally tried coasting in neutral with dual-clutch models but found it unnecessary. Unlike traditional manual transmissions, dual-clutch designs rely on complex hydraulic systems where lubrication might be insufficient in neutral, potentially affecting component health. Safety comes first when driving – shifting to neutral while coasting cuts off engine assist, making steering and braking heavier, especially in emergencies where control becomes harder. I once nearly had an accident on the highway due to distraction while coasting. Now, I focus solely on driving and let the transmission adjust gears automatically, maintaining fuel efficiency without compromise. I recommend paying more attention to driving habits rather than seeking momentary convenience.

In my decades of driving experience, coasting in neutral with a dual-clutch transmission is basically a scam. When coasting in N gear, the transmission gears may spin dry without sufficient lubrication, causing minor issues like strange noises and shaking, or even severe damage to internal components leading to costly repairs. Just think about high-end cars like the Audi A6L—repair costs are no joke, with a single maintenance session running into thousands. It’s far better to stick with D gear, letting the system optimize fuel efficiency effortlessly. Safety is also a major concern; coasting reduces control, especially on slopes or curves. Regularly checking your car’s condition is the smarter move.


