Professional Installation: If you are not experienced in installing air conditioning systems, consider seeking the help of a qualified professional or technician. Proper installation is crucial for the safe and effective operation of the bus's air conditioning system.

Regular maintenance of the power steering system, including checking the power steering hose for leaks and wear, can help prevent issues with the power steering system and ensure smooth and easy steering on your BMW E38. If you suspect a problem with your power steering hose, it is recommended to have it inspected and replaced by a qualified technician to ensure proper function and safety on the road.

With a 20 oz canister, A/C Pro R134a is capable of filling most vehicle A/C systems completely. This means you can enjoy the cool comfort of your A/C system for longer periods without worrying about running out of refrigerant.