Driving a car with a timing chain problem can be dangerous and risky. In a Volkswagen car, the timing chain is responsible for synchronizing the camshaft and crankshaft so that the valves and pistons can open and close in the correct order. If the timing chain is worn or stretched, it can skip a gear, causing the valves and pistons to open and close out of order. This can cause the engine to run poorly, or even to misfire or stall. Furthermore, a misfiring engine can lead to an increase in fuel consumption, increased emissions, and, in extreme cases, engine damage. This can cause extensive and expensive repair bills. Therefore, it is important to have the timing chain checked and replaced as needed.