Created by: | Orig. Posting Date | User Name | Edit Date |
| Jan 25, 2019 06:31AM | Roadwarrior | |
| Jan 23, 2019 04:08AM | kenatminimania | |
| Jan 22, 2019 05:01PM | h_lankford | |
| Jan 22, 2019 03:47PM | onetim | |
| Jan 22, 2019 02:58PM | minimanic21 |
Posted:
Jan 25, 2019
06:31AM
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Total posts: 42
Last post: Oct 14, 2023 Member since:Aug 25, 2018
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Cars in Garage: 0
Photos: 0 WorkBench Posts: 0 |
A stuck open thermostat seems like the obvious problem, I've actually experienced a Thermostat that had a broken leg from the disc plate to the return spring temperature tappet on my truck.
But, do this one thing, watch your fill/overflow reservoir when the the car has been fully warmed up and is running. You should see coolant cycle down from the side bypass tube and waterfall into the reservoir. If you don't, you may have a coolant blockage or an air bubble restricting the coolant flow. And yes, it can stay there for a long time and sometimes they don't drive out...
I had a friend of mine that had an Audi A4 and he has the very same problem, but it also blocked the coolant from circulating through the heater core and that car was like a refridgerator in the winter time. Just saying... I always take coolant issues very serious as I just got done R&R'ing, surfacing and rebuilding the head on my 2008 R56 due to overheating. Its not hard, but just a lot of work and lots of down time for the car.
But, do this one thing, watch your fill/overflow reservoir when the the car has been fully warmed up and is running. You should see coolant cycle down from the side bypass tube and waterfall into the reservoir. If you don't, you may have a coolant blockage or an air bubble restricting the coolant flow. And yes, it can stay there for a long time and sometimes they don't drive out...
I had a friend of mine that had an Audi A4 and he has the very same problem, but it also blocked the coolant from circulating through the heater core and that car was like a refridgerator in the winter time. Just saying... I always take coolant issues very serious as I just got done R&R'ing, surfacing and rebuilding the head on my 2008 R56 due to overheating. Its not hard, but just a lot of work and lots of down time for the car.
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Total posts: 2271
Last post: May 23, 2023 Member since:Dec 29, 2004
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Quote:
Originally Posted by minimanic21
hey, guys.
i was just wondering if any of you have had any issues with heating in your minis. i have an 09 JCW that takes a considerable amount of time for the heater to work. i have heard and read that it does take some time for some people's to come heat up but the problem i'm having is it doesn't stay hot. when i accelerate, it gets warmer and when i come to red light or a stop, it gets cooler. would anyone on here know why?
anything helps! thanks guys!
i was just wondering if any of you have had any issues with heating in your minis. i have an 09 JCW that takes a considerable amount of time for the heater to work. i have heard and read that it does take some time for some people's to come heat up but the problem i'm having is it doesn't stay hot. when i accelerate, it gets warmer and when i come to red light or a stop, it gets cooler. would anyone on here know why?
anything helps! thanks guys!
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Total posts: 2037
Last post: Mar 29, 2024 Member since:Aug 29, 2001
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I had that happen on a VW GTI
The way I knew it was this:
On 5 mile downhills in the mountains in the summer the temp gauge started falling (a lot) rather than staying steady at 190.
Of course, if all you have is an idiot light, you would never know.
When I replaced the thermostat, I found a few months later that the improved winter heater output occurred 2-3 minutes faster.
Note key words: Only faster to the warm-up temp, not hotter once it got there.
The way I knew it was this:
On 5 mile downhills in the mountains in the summer the temp gauge started falling (a lot) rather than staying steady at 190.
Of course, if all you have is an idiot light, you would never know.
When I replaced the thermostat, I found a few months later that the improved winter heater output occurred 2-3 minutes faster.
Note key words: Only faster to the warm-up temp, not hotter once it got there.
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Total posts: 1007
Last post: Jul 19, 2022 Member since:Jul 24, 2014
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Normally a thermostat that has failed open.
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Total posts: 3
Last post: Jan 22, 2019 Member since:Mar 4, 2018
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Cars in Garage: 0
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hey, guys.
i was just wondering if any of you have had any issues with heating in your minis. i have an 09 JCW that takes a considerable amount of time for the heater to work. i have heard and read that it does take some time for some people's to come heat up but the problem i'm having is it doesn't stay hot. when i accelerate, it gets warmer and when i come to red light or a stop, it gets cooler. would anyone on here know why?
anything helps! thanks guys!
i was just wondering if any of you have had any issues with heating in your minis. i have an 09 JCW that takes a considerable amount of time for the heater to work. i have heard and read that it does take some time for some people's to come heat up but the problem i'm having is it doesn't stay hot. when i accelerate, it gets warmer and when i come to red light or a stop, it gets cooler. would anyone on here know why?
anything helps! thanks guys!
