Hey guys, I am trying to troubleshoot what is wrong with my brothers 2004 z4 3.0.
The other day it started to get hot while driving home (in Vegas its like 105+ outside right now).
We replaced the thermostat and it still got hot while after awhile.
I think it might be the electric fan, since it won't turn on while trying to diagnose the issue at temp. When I click on the Ac it does 1 revolution and doesn't spin anymore.
Any ideas on how to confirm its the fan or how to troubleshoot further?
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Overheating / How to troubleshoot?!
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Mr Tidy
- Legend
- Posts: 23800
- Joined: Wed Jul 02, 2014 12:18 pm
- Location: North West Surrey
Overheating / How to troubleshoot?!
Well welcome to the forum. 
I'm pretty sure the fan should be running continuously, albeit quite slowly, if the AC is on. My Z4 needed a new fan for that issue earlier this year.
I'm pretty sure the fan should be running continuously, albeit quite slowly, if the AC is on. My Z4 needed a new fan for that issue earlier this year.
Coupes because stunning!
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
Current - Silver Grey MC, Imola Red heated Nappa & carbon trim. Aeros, H & R Coil-overs, 224s, OE Strut brace, Nav, cup-holders, DSP Hi-Fi, pdc, cruise, MFSW, no CDV! E90 330i daily
Gone - Montego Blue
Gone - Ruby Black
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slidintoo
- Newbie
- Posts: 2
- Joined: Thu Sep 08, 2022 10:25 pm
Overheating / How to troubleshoot?!
UPDATE!
While playing with the car trying to figure it out, I noticed the AC compressor smoked a little while the ac was clicked on.
I feel like I remember someone saying that if the AC isnt working properly the rad fan won't eiter.
Any ideas on that?
While playing with the car trying to figure it out, I noticed the AC compressor smoked a little while the ac was clicked on.
I feel like I remember someone saying that if the AC isnt working properly the rad fan won't eiter.
Any ideas on that?