A ribbed radiator typically heats better than a flat panel radiator. The ribbed design increases the surface area of the radiator, allowing for more efficient heat transfer. This means that a ribbed radiator can heat a room more quickly and effectively than a flat panel radiator. Additionally, the ribbed design allows for better circulation of air, further enhancing its heating capabilities. **

The BMW E46 requires a radiator cap with a pressure rating of 2 bar, which is equivalent to approximately 14.5 psi. Using a radiator cap with a higher pressure rating, such as 20 bar, can potentially cause damage to the cooling system components due to excessive pressure. It is important to always use the correct radiator cap specified by the manufacturer to ensure proper functioning of the cooling system. **

Driving a car without a radiator is not recommended as it can lead to overheating and severe damage to the engine. The radiator is responsible for cooling the engine by circulating coolant through it, and without it, the engine can quickly overheat. While it may be possible to drive a short distance without a radiator, such as a few kilometers to a nearby mechanic, driving 20 km to work without a radiator is not advisable and can result in significant damage to the engine. It's best to have the radiator replaced or repaired before driving the car any significant distance. **

In general, the size of a radiator does not necessarily determine its strength. The strength of a radiator is typically determined by factors such as the material it is made of, the design of the fins and tubes, and the quality of the pump. Therefore, a 420mm radiator may not necessarily be stronger than a 480mm radiator. It is important to consider the specific specifications and performance metrics of each radiator to determine which one is stronger for your particular cooling needs. **

The radiator heating may be on level 3 because the thermostat is set to a higher temperature than the current room temperature. It's possible that the thermostat is not accurately measuring the room temperature, leading to the radiator heating being set higher than necessary. Additionally, the radiator may be malfunctioning or the room may have poor insulation, causing the heating to be set higher than needed. It's important to check the thermostat and the radiator to ensure they are functioning properly and adjust the settings accordingly. **

To repair a radiator with a radiator sealant, first, ensure the engine is cool and the radiator is not under pressure. Then, locate the radiator cap and pour the sealant directly into the radiator. After adding the sealant, start the engine and let it run for about 15-20 minutes to allow the sealant to circulate and seal any leaks. Finally, check for any remaining leaks and top up the coolant if necessary. **

To remove the radiator from the radiator grille, you will first need to locate and remove any screws or bolts that are holding the radiator in place. Once these are removed, carefully disconnect any hoses or electrical connections attached to the radiator. Then, gently lift the radiator out of the grille, being careful not to damage any surrounding components. It's important to follow the specific instructions for your vehicle, as the process may vary depending on the make and model. If you're unsure, it's best to consult a professional mechanic or refer to the vehicle's manual for guidance. **

No, if the room temperature is already at 20 degrees and the radiator is set to 28 degrees, the heating system will not continue to run at 20 degrees. The radiator is set to a higher temperature than the desired room temperature, so the heating system will likely turn off or reduce its output to maintain the set room temperature. The radiator setting of 28 degrees indicates that it is trying to heat the room to a higher temperature than the set heating temperature of 20 degrees. **