Not enough heat from vents?

Tiny
DIVIDES
  • MEMBER
  • 2016 VOLKSWAGEN JETTA
  • 1.8L
  • 4 CYL
  • TURBO
  • 2WD
  • AUTOMATIC
  • 111,000 MILES
Battery was low but I started the car and had it charged, but the heat from vents when I turn heat on is not really really hot, it is warm, but not where I think should be. Only code I saw was for intake air leak which I doubt has anything to do with it. Coolant was a bit below minimum so I added some and topped it off
Tuesday, December 30th, 2025 AT 2:17 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,877 POSTS
It sounds like the heater core is clogged or the coolant is low which will cause this problem as well, here is a video to go over which can help you fix it or get us started on what the problem is not. Please go over it and get back to me.

https://www.youtube.com/watch?v=SNRb6pSwYuU

Please go over this guide and get back to us.
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Wednesday, December 31st, 2025 AT 9:28 AM

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