Fiat Panda making a strange noise

I took my Fiat Panda (2006) for a service last week. I was advised to have a chain replacement which I agreed to. From the first time I drove the car following the service and ever since I have heard water trickling/gurgling sounds from underneath the dash, mainly heard on passenger side.

I have not experienced this in all the time I have owned car (2010) and am curious as to why it has returned from a routine service with this. Should I be worried?

Asked on 24 February 2015 by Blackpool19

Answered by Honest John
If something was replaced that meant draining or partially draining the coolant than what you are hearing is probably an airlock in the heater matrix.
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