E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > Australia > P0597 Thermostat code



Reply
 
Thread Tools Search this Thread
      05-02-2013, 07:30 AM   #1
RotatingBimmer
New Member
1
Rep
7
Posts

 
Drives: BMW
Join Date: Feb 2013
Location: Dark side of the Moon

iTrader: (0)

P0597 Thermostat code

Hi all, fairly new to the BMW world.

Ran the OBD scanner on the car (325i) and got the following code:

P0597 - GenericTypePowertrain - Vehicle Speed, Idle Control, and Auxiliary Inputs - ISO/SAE Controlled
Description: Thermostat Heater Control Circuit/Open

Ive run some searches and it seems when the thermostat control fails, it fails open to reduce chance of overheating.

Anyone experience this, and if so, is it a certain thermostat replacement?

Appreciate your feedback.
Appreciate 0
      05-03-2013, 10:29 AM   #2
Jin-ActiveMotorwerke
Private First Class
1
Rep
126
Posts

 
Drives: BMW E46 330i
Join Date: Apr 2012
Location: Melbourne

iTrader: (0)

Yes, I have seen these go before. Pretty much a thermostat replacement.
Appreciate 0
      05-04-2013, 12:03 AM   #3
_ink
Major
_ink's Avatar
Australia
12
Rep
1,084
Posts

 
Drives: 335i 09' DCT M-Sport
Join Date: May 2012
Location: Sydney, Australia

iTrader: (0)

do we have any aftermarket lower temp thermostat options out there?
Appreciate 0
      05-05-2013, 10:57 PM   #4
RotatingBimmer
New Member
1
Rep
7
Posts

 
Drives: BMW
Join Date: Feb 2013
Location: Dark side of the Moon

iTrader: (0)

Quote:
Originally Posted by Jin.ActiveMotorwerke View Post
Yes, I have seen these go before. Pretty much a thermostat replacement.
Thanks Jin... Without the obvious fact the theromstat is not working, when it fails in the open position is there damage possible to components? Is this a high urgency replacement?

Actually, reading this thread:

http://www.e90post.com/forums/showthread.php?t=797548

It seems that the car takes longer to warm up, and there is an issue with emmissions. Not critical, but needs to be done.

It's still under statuatory warranty, so I hope it's covered... guess I'll be calling the dealership.
Appreciate 0
      05-06-2013, 12:14 AM   #5
froop
Colonel
froop's Avatar
Australia
37
Rep
2,224
Posts

 
Drives: 08 AW 6MT E82
Join Date: Jul 2012
Location: Sydney, Australia

iTrader: (2)

People actually have been replacing their factory thermostats with the aftermarket BMS thermostat. What this does is force the thermostat to stay open all of the time, kind of like your broken thermostat. It results in mildly longer warm up times but also reduced operating temperatures.

Whether this is beneficial or detrimental to the engine, the jury appears to be out. There are a few threads of this mod in the 1addicts Australia and exhaust mods sections.
__________________
Appreciate 0
      05-06-2013, 10:27 PM   #6
_ink
Major
_ink's Avatar
Australia
12
Rep
1,084
Posts

 
Drives: 335i 09' DCT M-Sport
Join Date: May 2012
Location: Sydney, Australia

iTrader: (0)

Quote:
Originally Posted by froop View Post
People actually have been replacing their factory thermostats with the aftermarket BMS thermostat. What this does is force the thermostat to stay open all of the time, kind of like your broken thermostat. It results in mildly longer warm up times but also reduced operating temperatures.

Whether this is beneficial or detrimental to the engine, the jury appears to be out. There are a few threads of this mod in the 1addicts Australia and exhaust mods sections.
Thanks for that info Froop!
Appreciate 0
      05-06-2013, 11:11 PM   #7
froop
Colonel
froop's Avatar
Australia
37
Rep
2,224
Posts

 
Drives: 08 AW 6MT E82
Join Date: Jul 2012
Location: Sydney, Australia

iTrader: (2)

Quote:
Originally Posted by _ink View Post
Thanks for that info Froop!
No probs!

Though having a think about it, I'm not entirely sure whether you are talking your water/coolant thermostat or your oil thermostat.

I assumed oil and the thermostat replacement I was referring to is for the oil thermostat. Though I guess even if it is your water thermostat and it's kept open like the oil one it would have basically the same effect.
Appreciate 0
      05-07-2013, 05:46 AM   #8
Ethanderall
Private
0
Rep
51
Posts

 
Drives: 2006 325i
Join Date: Jan 2012
Location: Gold Coast, AU

iTrader: (0)

I had the engine light come on while driving one day, stressed me out... then it went out a couple hundred K's later... then came on et.al...

Had the codes read while I was in Sydney and got the P0597 code, same as you...

Turns out, the connectors on the thermostat heater can go a little soft and don't grip the pins as hard as they should. I simply unplugged the connector from the back of the thermostat heater and re-plugged it a couple times... viola, cleared the codes and never had the problem re-appear.
Appreciate 0
      05-10-2013, 08:22 AM   #9
Jin-ActiveMotorwerke
Private First Class
1
Rep
126
Posts

 
Drives: BMW E46 330i
Join Date: Apr 2012
Location: Melbourne

iTrader: (0)

If it stuck on open, then it will just take longer for it to warm up. Only emmision related. Not much harm done to the engine.
The thing is, you never when it's going to decide to move again and stop at close position.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -5. The time now is 05:18 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST