Coolant loss after thermostat replaced S3 FL

[ccs3]

I had my water pump & thermostat replaced about 5 weeks ago due to a coolant leak.

Up to now it has been at a steady level with no loss. I checked this morning and it had dropped quite a bit just above min level.

Is it normal to have some loss after replacing water pump? I’ve filled it back up and will keep an eye on it

 

[NHN]

Yes as it may have had an air pocket, top up & monitor, also check for leaks around the stat.

 

[ccs3]

Yes as it may have had an air pocket, top up & monitor, also check for leaks around the stat.

Thanks. I thought air pockets usually cleared out after 15-20 mins of driving? It took 4 weeks / 200-300 miles for it to drop

 

[NHN]

I've known that before, but it's just a case of top up & monitor.

 

[ccs3]

I've known that before, but it's just a case of top up & monitor.

Cool, ty.
The thermostat and water pump was replaced under warranty by an independent dealer so if I lose coolant again I’ll just take it to an independent Audi specialist and bite the bullet and pay to get it sorted.

 

[AlS3BE]

Mine started doing this and is covered under Audi extended warranty. Mine is a late 2018 s3.
just a quick one, did they replace the thermostat housing as I was told this is the problem and not the actual thermostat/waterpump even though they are gonna replace both while they are in there.