E34 525i Coolant Problem - BMW Forum - BimmerWerkz.com
5-Series (E12,E28, E34, E39, E60) Chat relating to the BMW 5-Series of all generations. Specific models include: BMW 518, BMW 520, BMW 520i, BMW 530i, BMW 528i, BMW 530i, BMW 518i, BMW 524d, BMW 525i, BMW 525e, BMW 528e, BMW 540i, BMW 535i, BMW 520d, BMW 525td, BMW 525d, BMW 530d, BMW 525i/xi, BMW 530i/xi. (BMW 5-Series Forum)

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 01-25-2005, 09:44 AM
n00b
 
Join Date: Jan 2005
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
rml612 is an unknown quantity at this point
(Thread Starter)
My father gave me his 1990 525I, it is in excellent condition except for 2 problems.

The first is I get a coolant level warning. I checked the coolant level and it is full so I am guessing the coolant level sensor is bad and needs to be replaced. Question is, will I have to remove the coolant to change the sensor?

Second, intermittantly, I get a brake light warning, however the brake lights are fine and come on when the brake is depressed. The cruise control will not work when this happens. Could it be a bad brake light switch, and if so, where is located and how difficult is it to replace?

Thanks in advance for your help!
rml612 is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 01-25-2005, 10:50 AM
n00b
 
Join Date: Jan 2005
Posts: 12
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2MuchTorque is an unknown quantity at this point
The coolant sensor may not be bad. Try this first:
From underneath the car, remove the wire terminal from the sensor. Use a small piece of fine (120-220) sandpaper to remove any corrosion from the copper terminals. This worked for me. If you do need to replace the sensor then yes you will have to drain the coolant. Be sure to get a new oring for the sensor.
2MuchTorque is offline  
#3 (permalink) Old 01-25-2005, 04:12 PM
n00b
 
Join Date: Jan 2005
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
rml612 is an unknown quantity at this point
(Thread Starter)
Quote:
Originally posted by 2MuchTorque@Jan 25 2005, 11:50 AM
The coolant sensor may not be bad. Try this first:
From underneath the car, remove the wire terminal from the sensor. Use a small piece of fine (120-220) sandpaper to remove any corrosion from the copper terminals. This worked for me. If you do need to replace the sensor then yes you will have to drain the coolant. Be sure to get a new oring for the sensor.
[snapback]278780[/snapback]

Thanks, I'll try it.
rml612 is offline  
#4 (permalink) Old 01-25-2005, 06:57 PM
da_administrator
 
da_bull's Avatar
 
Join Date: Jan 2005
Location: Mooooossouri
Posts: 4,840
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute da_bull has a reputation beyond repute
Send a message via MSN to da_bull
One thing also, if the temp gauge is above the halfway mark at all, you have a problem somewhere else. As long you can drive it around with the gauge in the proper place, the sensor may be bad. Mine was slighty off center during a 60 mile trip, and that trip cost me a warped head to the tune of about 2300.00. My advice: dont take the cooling problems lightly. da_bull-----> ghead



-There are 10 kinds of people. Those who understand binary, and those who do not.

-If we ever forget that we are One Nation Under God, then we will be a nation gone under...Ronald Reagan
da_bull is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 5-Series (E12,E28, E34, E39, E60)


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
E34 coolant sensor bimmerholic 5-Series (E12,E28, E34, E39, E60) 2 11-12-2005 08:16 AM
Weird E34 540 tranny problem, help needed.. antose9 5-Series (E12,E28, E34, E39, E60) 8 11-09-2005 12:43 AM
1994 525i Overheating Problem sixrooter 5-Series (E12,E28, E34, E39, E60) 6 10-28-2004 08:23 PM
Problem with the Coolant Leak RedBeemer95 3-Series (E36) 3 07-23-2004 03:53 PM
Check Coolant Level problem. alienbust 3-Series (E36) 6 12-15-2003 04:20 PM

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