Jetta TDI 2011 glowplug P06A3

The engine light came on last week.This P06A3 code came up. Car ran for a few days. Now its dead... Doesn't start.
A bunch of other codes now also came up with the first one (P06A3): P13CE, P13D4, P14D1...
Glow plug issue?
Thx for help. My wife's car... Gotta get it fixed now.

Check:
https://www.ross-tech.com/Search-Results.html?q=P06A3
Good place to look up codes.

Keep in mind it's a pointer to what the issue is.
You have to test the circuit & components.
Throwing guess a part at the car can get expensive quickly.