Ticking/tapping noise when 2.0 TDI is warm

VegasDave

New member
Joined
Aug 7, 2020
Location
Las Vegas NV
TDI
2014 Jetta Sportwagen
Lately hearing a faint ticking or maybe a tapping sound after the car has run for about 15 minutes. I only hear it at idle ( especially waiting at a light) and does not seem to be engine/transmission/wheel speed related. I need to actually drive the car around for awhile to hear it (if that makes sense). Could it be exhaust related?
 
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