I have no idea if your car has air in the system, but I just wanted to share a little information about a tool I use frequently and love. I am in no way affiliated with this tool or company. The tool is made by airlift. After draining the coolant from the vehicle you hook this tool up to the radiotor coolant
reservoir. It suctions into the reservoir via the opening for the cap. You put
shop air to the tool which has a gauge on it and pull a vaccum on the system.
You will see all of the coolant hoses compress. After pulling a vaccum on the
system you install another adapter onto the fitting with the gauge. This adapter has a long clear hose that you put into a tub of coolant/water mix. You then turn the shutoff, and coolant is sucked into the car. You will have no air in the system after this is performed! The tool costs about 100 bucks and works awesome. It saves me so much time with bleeding the system and checking for leaks. As a Mercedes Benz technician it has got to be one of the
best tools I have bought. Has anyone else used a system like this? Sorry this process is probably hard to understand but trust me it's so easy.
Dustin