2014 Jetta TDI Heater Not Working

[IanMcGoo22]

Hello, I have a 2014 Jetta TDI with 104000km on it. Recently, the heater stopped working and now is blowing almost cold air. The vehicle does not appear to be overheating and the coolant level is normal. However, the coolant fan did run after the car was shut off a couple of times in the days before the heater stopped working. But of course the fan runs sometimes anyway so I don't know if it's a symptom of trouble or not. The airflow doors inside the heater seem to be working correctly.

The only other thing that may be significant is that the alternator was replaced by the dealer under the extended warranty about 5 or 6 weeks ago. I don't see how this would affect the cooling system, but it is in the same area as the water pump, so....

If anyone has any ideas what it could be, please let me know. I will be taking the car in to see if they'll warranty it, but if it's something simple I'd rather do it myself and save the hassle of being without a car for a few days.
Thanks!

 

[pedroYUL]

Your main fans keep working after you shutdown the car, when a DPF regeneration is on-going (or just completed) and the exhaust needs to cooldown.

If you have AC, cold air and not just outside air, then you might have an issue with your blend door. If you don't have AC, nor heat, then you may have a clogged core

 

[diesel power]

Clogged Heater Core, it's warrantied.

 

[Scrubber2410]

I’ve got my MK6 TDI golf going into VW tomorrow to get the no heat fixed. According to the VW service advisor it should be covered under the extended Vw diesel warranty.......fingers crossed

 

[Scrubber2410]

VW is covering the cost for the replacement of my heater core under the TDI extended warranty. My car a 2013 TDI Golf.

 

[r4ndys1ngh]

Interestingly enough, I was driving to work with the heat on and smoke started to plume out of the all the vents. Drove to the dealer and it looked like I hot boxed the car. Told them something is up with the heater and they replaced it just after my warranty ended. Get the warranty service and the heat will work good as new.

 

[Zahran alsheriqi]

Hi .. I have vw jetta 2012 my car crenk but no start Sometimes it starts for one second and then dies and it appears to me after the signals in the meter like ABS , AIRBAG , CHECK ENGINE, And when I checked the car VCDS I have these faults, which I will attach to me, and I hope you will help




Address 02: Auto Trans Controller: 09G 927 750 LE Labels None Component: AQ 250 6F Coding: 0000328 Shop # WSC 00010 VCID: 7F7180FF6EE5 3 Faults Found: 01317 - Control Module in Instrument Cluster (J285) 004 - No Signal/Communication 01299 - Shareware Version. To Decode all DTCS 004 - Please Register/Activate 01314 - Shareware Version. To Decode all DTCS 013 - Please Register/Activate 2330 End