Hi there,

I have a Ford Focus EcoBoost 2.0L Diesel. 

I was checking the fluid levels for my engine and noticed that the second reservoir was a bit low. I looked through the manual, but it doesn't mention this particular reservoir. Could you let me know what it is and what I should do in terms of filling it up? I've attached a photo for reference.

Any advice will or links to online resources will be greatly appreciated.  

 

Thanks in advance.  

On 8/19/2024 at 10:17 PM, James-UK said:

I have a Ford Focus EcoBoost 2.0L Diesel. 

All EcoBoost engines are Petrol.

All EcoBlue engines are Diesel

All EcoBoom engines are broken 🤣

Intercooler cooling system.

On 11/7/2021 at 8:47 PM, iantt said:

The intake air charge cooler( intercooler) has its own cooling system independent from the main engine cooling system. Has its own radiator and electric coolant pump. 

 

Thanks for correcting me.  I have an EcoBlue.  

Thanks for letting me know.  I will make sure it is topped up.  

im having the same problem   regularly having to top mine up also, like James said no mention in the manual ?   

at mine, the left tank past the max mark, and the center tank completely empty...
 

As has already been posted above, it's coolant for the water-cooled intercooler.  If it's empty then the intercooler, pump, reservoir or pipework are damaged and need to be repaired.

This isn't critical like the coolant in the engine, but the pump is likely to get damaged if it's running dry.