What is normal / too hot for a T5 coolant? (C70)

mark2410 · Oct 25th, 2021, 20:25

So, as its been a week with no issues i noticed that the attached obd connected to the car has reported high coolant temp, they car hasnt complained about it but its reported 98 and 99c.

Is this normal?

domhart10 · Oct 26th, 2021, 09:57

I would say its not, but also not many people would notice either.

Is the car mapped? or had anything done to it?

These little T5's are notorious for getting very hot in that engine bay. Really depends what your are doing as well.

Probably a nice idea if looking to freshen the car up a bit, getting a bigger intercooler in there as the standard one is awful.

mark2410 · Oct 26th, 2021, 10:08

no not mapped, tbh was thinking of getting it mapped as it feels so weedy despite being a T5, but no ive had nothing done to it. Mind you ive not it had it since birth but it certainly doesnt feel mapped.

Was just driving, nothing especially fast or anything.

So is 99c considered too hot?

Wgl2020 · Oct 26th, 2021, 16:24

I wouldn't say that strikes me as being an issue.

Oct 25th, 2021, 20:25	#1
mark2410 Senior Member Last Online: Mar 27th, 2024 16:14 Join Date: Jan 2020 Location: Edinburgh	What is normal / too hot for a T5 coolant? (C70) So, as its been a week with no issues i noticed that the attached obd connected to the car has reported high coolant temp, they car hasnt complained about it but its reported 98 and 99c. Is this normal? __________________ 2007 V50 D5 2007 C70 T5 2017 V90 D4 2018 v90 D4 LHD 2009 C30 T5

Oct 26th, 2021, 09:57	#2
domhart10 Volvo S40 Last Online: Yesterday 15:53 Join Date: Mar 2015 Location: Chichester	I would say its not, but also not many people would notice either. Is the car mapped? or had anything done to it? These little T5's are notorious for getting very hot in that engine bay. Really depends what your are doing as well. Probably a nice idea if looking to freshen the car up a bit, getting a bigger intercooler in there as the standard one is awful. __________________ ----------------------------------------- Current: 2009 Volvo S40 T5 Progress Thread: https://www.volvoforums.org.uk/showthread.php?t=271945 Previous Volvo: 2008 S40 SE Lux R Design 2.0D

Oct 26th, 2021, 10:08	#3
mark2410 Senior Member Last Online: Mar 27th, 2024 16:14 Join Date: Jan 2020 Location: Edinburgh	no not mapped, tbh was thinking of getting it mapped as it feels so weedy despite being a T5, but no ive had nothing done to it. Mind you ive not it had it since birth but it certainly doesnt feel mapped. Was just driving, nothing especially fast or anything. So is 99c considered too hot? __________________ 2007 V50 D5 2007 C70 T5 2017 V90 D4 2018 v90 D4 LHD 2009 C30 T5

Oct 26th, 2021, 16:24	#4
Wgl2020 Member Last Online: Jan 21st, 2023 17:15 Join Date: Aug 2020 Location: Ormskirk	I wouldn't say that strikes me as being an issue.

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