No heat

Tiny
NASER NASER
  • MEMBER
  • 2003 MINI COOPER S
  • 4 CYL
  • TURBO
  • 2WD
  • MANUAL
  • 122,000 MILES
Heat coming from driver side vents about 60% of what it should be, passenger about 35%. Did bleed the system as it should, no bubbles coming out of the hole by thermostat hose, and same for the other hole down on the driver size. Not sure what it is.
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Sunday, October 27th, 2019 AT 4:21 AM

12 Replies

Tiny
MIKE H R
  • EXPERT
Check the hoses going into the heater at firewall, if one hot and the other cold then there is a clog in the heater core or partial clog, If the vehicle has been sitting for any time sentiment may have settled in the heater core. You can try by reversing the hoses. See if that clears it up.
.
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Sunday, October 27th, 2019 AT 8:45 AM
Tiny
NASER NASER
  • MEMBER
Both the hoses are cold, switched the hoses, and looked inside them, looks good, also ran the car for few seconds while hoses off and water came out. Bled the system again, and still the same thing. Warm on driver and flat/ambient on passenger.
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Sunday, October 27th, 2019 AT 11:54 AM
Tiny
NASER NASER
  • MEMBER
Removed the heater core, doesn't seem to have much dirt, but I tried to clean it up by running water in one side while it's off the car. Is the water supposed to come out the other side quickly and freely? I cleaned it and cleaned it but there is only little water coming out of the other side, even with an air compressor. If I put in air from one side hardly any comes out of the other side.
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Sunday, October 27th, 2019 AT 2:50 PM
Tiny
MIKE H R
  • EXPERT
The water should run through there equally. Try changing the water back and forth.
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Sunday, October 27th, 2019 AT 3:03 PM
Tiny
NASER NASER
  • MEMBER
I did it all kinds if ways, each side wont take more than few ounces and then water would run off, same for the other side, looks clean on the outside with no rust or dirt, that is what I thought is that it should run out from both holes, also both pipes coming out of the heater core are hot, my guess it is cogged up and mot circulating?
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Sunday, October 27th, 2019 AT 3:28 PM
Tiny
NASER NASER
  • MEMBER
After putting it back same thing but a bit more heat from passenger.
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Sunday, October 27th, 2019 AT 3:31 PM
Tiny
NASER NASER
  • MEMBER
I am pretty sure the thermostat is fine, temperature reaches optimal in the middle within normal time, no leaks or overheating.
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Sunday, October 27th, 2019 AT 3:59 PM
Tiny
KEN L
  • ADMIN
It sounds like the blend door actuators are closing? Can you remove them to check the operation?
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Wednesday, October 30th, 2019 AT 4:49 PM
Tiny
NASER NASER
  • MEMBER
I can try the passenger. Can you give some instructions on removing it?
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Wednesday, October 30th, 2019 AT 5:17 PM
Tiny
KEN L
  • ADMIN
Here are the instructions for removing the actuator. Check out the diagrams (below). Please let us know what happens.
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Thursday, October 31st, 2019 AT 10:31 AM
Tiny
NASER NASER
  • MEMBER
Replaced th heater core and all good on the heat, thanks for your help!
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Friday, November 1st, 2019 AT 2:02 PM
Tiny
KEN L
  • ADMIN
Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.
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Saturday, November 2nd, 2019 AT 12:08 PM

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