Coolant light goes on and off - BMW Forum - BimmerWerkz.com
3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 08-21-2008, 03:57 PM
n00b
 
Join Date: Jul 2008
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dslim88 is on a distinguished road
(Thread Starter)
Coolant light goes on and off

On my 2000 BMW 328Ci manual the coolant light comes on while idling...when I reach about 40 mph or so it goes out and then comes back on when I stop then goes back out again when I reach about 40mph. The coolant level is fine. This all happened after the expansion tank failed and I replaced it...so the coolant level sensor is new. I'm going to buy another sensor anyway, but I was just curious if this could be something else. Thanks for any info.
dslim88 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 08-22-2008, 10:12 AM
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Posts: 1,494
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
darkhorse737 is on a distinguished road
Talking

coolant sensor connector not correctly fastened... loose?
darkhorse737 is offline  
#3 (permalink) Old 08-22-2008, 12:02 PM
n00b
 
Join Date: Jul 2008
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dslim88 is on a distinguished road
(Thread Starter)
Yeah I thought of that too... I disconnected it pulled it out and reconnected it...no luck.
dslim88 is offline  
#4 (permalink) Old 08-23-2008, 09:24 AM
5th Gear Member
 
darkhorse737's Avatar
 
Join Date: May 2008
Location: San Francisco, CA
Posts: 1,494
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
darkhorse737 is on a distinguished road
Red face

pull out the connector and place a paper clip across the pins... lights out?

If yes, then coolant sensor is stuck or gone bad.

If no change with paper clip attached and stand alone... then it might be a wiring prob.

Good Luck.
darkhorse737 is offline  
#5 (permalink) Old 08-25-2008, 09:06 PM
n00b
 
Join Date: Jul 2008
Posts: 15
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
dslim88 is on a distinguished road
(Thread Starter)
Looks like the sensor is bad...thanks for the tips!!!
dslim88 is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E46, E90)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Coolant Light Comes Up!!! junchoi 3-Series (E46, E90) 2 02-02-2005 05:57 PM
Why Is My Coolant Light On EnvyM3 3-Series (E46, E90) 3 01-31-2005 09:17 PM
Coolant Light Comes On EnvyM3 3-Series (E46, E90) 1 11-08-2004 09:40 PM
COOLANT LIGHT shield 3-Series (E21, E30) 2 08-31-2004 12:16 PM
Coolant light is on Old_School_Bimmer 3-Series (E21, E30) 5 07-26-2004 01:37 AM

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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome