I need to replace the Knock Sensors and the Radiator in m Infinity Q45. Do I really need to have a professional Mechanic do this for me?

I have the manuals which show me how to do it myself and I also have access to the mechanics shop on the Air Force Base.

If you have the service manual, replacing the radiator and knock sensor is no big deal.

The radiator is a very simple install. Just make sure you collect the radiator fluid and dispose of it properly.

The knock sensor can be easy or can be difficult depending on which one and where it's located. Also, be careful to torque it correctly. If it's too loose or tight, it can send the wrong signals to the ECU.