I have an Octavia Greenline 3 (2014). A few years ago I had the dreaded mit silikat issue after the main water pump failed where Skoda claimed they flushed the system twice but cabin heating has never been the same since. I replaced the heater matrix in the glove box with surprisingly little residue in it.

Recently had the following errors in VCDS

3 Faults Found:

18825 - Coolant Pump for Intercooler

P023B 00 [10101111] - Short to GND

P023A 00 [10101100] - Open Circuit

Is there any way to tell which Aux water pump I need to order from these codes without physically looking at it? I understand there are two different types so don't want to order the wrong one.
And is there any chance this might finally fix my cabin heating issue?

VCDS.txt

Edited 8 December, 20258 Dec by slamm
formatting

Well, potentially yes. The Aux water pump is there to keep coolant running around the system when the car goes into stop/start mode. Without it running, you will suffer from slow heating up of the heating system too.

Edited 8 December, 20258 Dec by varaderoguy

26 minutes ago, varaderoguy said:

Well, potentially yes. The Aux water pump is there to keep coolant running around the system when the car goes into stop/start model. Without it running, you will suffer from slow heating up of the heating system too.

Thanks, yeah it's basically even on the highest setting lukewarm on the passenger side and almost cold on the drivers side.
and if you have it on auto, on high it won't go over 2 bars of fan speed because the heat just isn't there.