2000 VW Beetle Turbo 1.8- replaced the expansion tank/now Temp is Blinking??

Replaced VW Turbo 1.8 expansion tank due to a crack in it. Before we replaced it, no idiot lights were ever on. Now that tank is replaced and back to new, Red
Flashing Therm. light is on, blinking, and beeping. Does the sensor need to be Reset?? Sensor Bad??
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Don't know about that one but older VWs needed to be burped to get all the air out of the system.
Should be YouTube vids on it.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.