All Things Mk5 > How to Guides / Troubleshooting
Coolant temp high
howie1987:
I have polarfis so can keep an eye on my coolant etc.
Driving its fine its always round about 75 to 85. but as soon as am at a standstill the coolant temp is going up to 100. i'm stage 2+ so i expect it to rise quicker but shouldn't be that high should it?
I've just had my waterpump done so could it maybe be an airlock in the coolant?
Also the fan only seems to kick in sometimes.
Any help would be great.
kierhanlon6:
have you checked the thermostat they can break so not allowing the water flow. when driving this is fine as you have a lot of cold air to keep the radiator cool. in traffic you have no moving cold air causing it to over heat. have you put all your heaters on flat out when its over heating to drop temp? and does it take longer than normal to warm up?
howie1987:
--- Quote from: kierhanlon6 on March 07, 2016, 07:47:07 pm ---have you checked the thermostat they can break so not allowing the water flow. when driving this is fine as you have a lot of cold air to keep the radiator cool. in traffic you have no moving cold air causing it to over heat. have you put all your heaters on flat out when its over heating to drop temp? and does it take longer than normal to warm up?
--- End quote ---
Tbh i haven't drove it alot or let it get hot when i have drove it alot, it happend today but i just turned the car off. but it doesn't really take longer to heat up i don't think.
I'm booked in on weds for somthing else so i will get them to check and tell them to check thermostat, and the fans are kicking in.
kierhanlon6:
--- Quote from: howie1987 on March 07, 2016, 08:01:01 pm ---
--- Quote from: kierhanlon6 on March 07, 2016, 07:47:07 pm ---have you checked the thermostat they can break so not allowing the water flow. when driving this is fine as you have a lot of cold air to keep the radiator cool. in traffic you have no moving cold air causing it to over heat. have you put all your heaters on flat out when its over heating to drop temp? and does it take longer than normal to warm up?
--- End quote ---
Tbh i haven't drove it alot or let it get hot when i have drove it alot, it happend today but i just turned the car off. but it doesn't really take longer to heat up i don't think.
I'm booked in on weds for somthing else so i will get them to check and tell them to check thermostat, and the fans are kicking in.
--- End quote ---
mine was the same and it was only a thermostat only a few quid so hopefully be a cheap fix for you
howie1987:
--- Quote from: kierhanlon6 on March 07, 2016, 08:05:25 pm ---
--- Quote from: howie1987 on March 07, 2016, 08:01:01 pm ---
--- Quote from: kierhanlon6 on March 07, 2016, 07:47:07 pm ---have you checked the thermostat they can break so not allowing the water flow. when driving this is fine as you have a lot of cold air to keep the radiator cool. in traffic you have no moving cold air causing it to over heat. have you put all your heaters on flat out when its over heating to drop temp? and does it take longer than normal to warm up?
--- End quote ---
Tbh i haven't drove it alot or let it get hot when i have drove it alot, it happend today but i just turned the car off. but it doesn't really take longer to heat up i don't think.
I'm booked in on weds for somthing else so i will get them to check and tell them to check thermostat, and the fans are kicking in.
--- End quote ---
mine was the same and it was only a thermostat only a few quid so hopefully be a cheap fix for you
--- End quote ---
If its not that much i might aswell change it anyway. get it all checked on weds anyway. one thing i noticed is my fuel econemy isn't as good.
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