How to Solve the Clicking Noise When Accelerating in BMW 320?

[OAdelyn]

Solutions for the clicking noise when accelerating in BMW 320: 1. Replace the generator. 2. Replace the tensioner and belt to resolve the issue. Below is an introduction about the tensioner: 1. Device: The tensioner is used for belt tensioning in the automotive transmission system. 2. Composition: The tensioner mainly consists of a fixed housing, tensioning arm, wheel body, torsion spring, rolling bearing, and spring bushing. It can automatically adjust the tension according to the belt's tightness, ensuring stable, safe, and reliable operation of the transmission system. 3. Wear and Tear: The tensioner is a wear-prone component in automotive parts. Over time, the belt may stretch, and some tensioners can automatically adjust the belt's tension. Additionally, the tensioner makes the belt run more smoothly, reduces noise, and prevents slipping. 4. Function: The tensioner is used to adjust the tightness of the timing belt. It is generally replaced along with the timing belt to avoid future issues. Other parts do not need replacement as long as regular maintenance is performed.

[MadelineLee]

I used to drive a BMW 320, and that annoying ticking sound during refueling was really irritating, most likely due to engine knocking. When I encountered this issue, the mechanic checked and said it was caused by excessive carbon deposits or inaccurate ignition timing, leading to abnormal gasoline combustion. It might also be related to aging spark plugs—if they're severely worn, they need to be replaced promptly. I suggest you avoid long-distance driving for now and try using higher-octane 95-grade gasoline to alleviate the symptoms, while also checking if the air filter is clogged. From a safety perspective, prolonged neglect of this sound could damage the cylinders. My neighbor ignored it last time and ended up needing a major engine overhaul. Hurry to a professional shop and use diagnostic tools to check—repairs might cost around a couple thousand, so don’t lose big for small savings. Regularly using fuel additives to clean carbon deposits can also prevent this issue.

[Hannah]

I just bought a BMW 320 not long ago, and the ticking sound when refueling makes me quite nervous. I suspect it might be due to fuel quality issues, such as using substandard gasoline causing uneven fuel injection. I checked the manual and learned that similar abnormal noises are often caused by abnormal cylinder pressure or worn valve lifters. In terms of handling, I recommend starting with the simplest steps: first, check if the engine oil level is normal—low oil can also cause noise, so top it up if necessary. Then, observe if the noise is more noticeable during cold starts, which might indicate a chain issue. A friend in the car owners' group shared their experience, suggesting trying a different gas station with fresh, higher-octane fuel. If the noise persists after two days, it's best to visit the dealership to scan for fault codes to avoid power loss at high speeds. Don't try to disassemble parts yourself—leave professional tasks to the professionals.

[Beatrice]

I think the ticking sound while refueling is quite common on the BMW 320, and it should be addressed promptly to prevent accidents. As far as I know, this could be caused by loose piston or connecting rod components leading to resonance, or it might be due to clogged fuel injectors making the engine shake. If the sound is accompanied by a lack of power during acceleration while driving, it can be very dangerous and may cause the engine to stall. I recommend pulling over immediately to check the engine compartment for any signs of oil leaks or unusual smoke. Don’t force your way to the destination; instead, call a tow truck to take it to a repair shop for a thorough inspection. Safety should not be overlooked, as similar faults have caused cases of engine overheating and fires. Once fixed quickly, you can drive with peace of mind, and the cost is usually not expensive, ranging from a few hundred to around a thousand yuan.

[OMariana]

I have some insights on car maintenance. When there's abnormal noise during refueling, I first check the air filter and fuel system. For the ticking sound in a BMW 320, it's often caused by a dirty throttle body or intake manifold leak. My routine approach is: after parking, open the hood to listen for the noise source location - if it's from the rear, the ignition coil might be faulty; regularly replacing spark plugs and using genuine engine oil can prevent this. I've also found that insufficient tire pressure or fuel line contaminants can worsen the noise. My advice is don't wait for major repairs - try DIY cleaning of throttle components first, or simply scan for trouble codes with an OBD scanner bought online. Fixing these not only makes the car quieter but also improves fuel efficiency and extends the vehicle's lifespan.