Hello, Please help me if you can.

I have owned my beloved Mondeo for just over 3 years with largely no issues at all.

However in the past week I have noticed a faint noise that sounds just like trickling water, or water being poured into water, slowly, the noise is quite faint and I only really notice it when crawling in slow traffic or when pulling away slowly on quiet roads. Although not all of the time.

My Mondeo is a W reg petrol automatic. It has had a new radiator about a year ago and the coolant level is currently at 'MAX' like it always has been. I have not noticed the temp gauge rise at all.

I am quite concerned as to what the issue might be as after I took it to a garage yesterday he couldn't find any faults, but to be honest I don't know what he checked, he did tell me that as my Mondeo had the Zetec engine it would not be the head gasket, however he did not test this (or anything else except a visual look).

I will give what ever info I can if you need anything, please ask.

Please help if you can, I am concerned that things might get worse.

Thank you.

 

Moving on 4 or 5 days and the noise is still there, hard to tell how frequent it is as I wouldn't hear it at high revs.


What I will say now is that on several occasions I have heard it when the engine has been cold (but also heard it at full engine temp) and that it sounded like water slushing, like if you move a washing up bowl sideways...


The noise sounds to me like it is coming from just behind the steering wheel area as a guess.


Any ideas please?

 

Sounds like water moving through the heater matrix. I have had cars that have done this, I wouldn't worry unless there is any water loss or symptoms of overheating etc.

 

Thank you.


Is there any way to tell if this is what it is?


Or if it will go away? as it seemed to come on from nowhere.

 

Don't really know to be honest. It could always be a bit of sludge build up that it causing a bit of turbulence as it were. Maybe a cooling system flush followed by a coolant change might help.

 

Thank you for the replies.

Yesterday before I went out I thought I would check the coolant level as I was told to do this, and I noticed the level had dropped about 1cm below the max (it was always on the max when I have checked it before).

Then as I pulled away I noticed the same water poured/trickling/sloshing into water noise... I then pulled over and checked the coolant level again, and it was now back to the max line...

No idea if this is coincidence or if this helps isolate any potential problem at all?