Hi , I have been part of a discussion on the Superb page , but just wondering if any Octavia owners have experienced this squeal

(sounds like an old fashioned kettle whistle)

 

Long story short ... water pump was changed under warranty , squeal returns a few months later , garage (through advice of Skoda ) adds some kind of additive to coolant ... squeal dissapears for a couple of years ..... however , its back  worse / more consistant this year

 

Never does it in the winter , seems only to be when the ambient temp rises / also only on idle

 

Any ideas ?

Edited 21 May, 20197 yr by Dr Bob

Update : Just found out the additive used was a coolant cleaning agent (  part no. G 052 188 A3  )

Anybody used this, or shed any light ?

 

 

Ever get to the bottom of this one Dr Bob?