2002-2006 Mini Cooper S (R53)
Sponsored by:
Sponsored by:

Coolant temp gauge pegged...

  #1  
Old 08-12-2010, 02:04 PM
Junior Member
Thread Starter
Join Date: Aug 2010
Posts: 4
Default Coolant temp gauge pegged...

My electrical gremlins were the result of a very weak battery (8 volts).

However, the one issue that has not resolved itself is the coolant temperature gauge. It pegs full scale as soon as I turn the key on the cold engine (warning light is not illuminated).

I have the (Chilton) manual, the electrical section is all pretty cryptic, It looks like the sensor is a variable resistor mounted on the right side of the cylinder head, going to the DCU, translated to a K-bus signal, sent to the tachometer pod.

With the warning light not lit, tells me it's not the sensor, and almost equally unlikely to be the DCU, but in the tach-head assembly where the digital K-bus signal is translated back to "analog".

The manual makes changing the tachometer head look like child's play, is it?

Does anyone know of a good source of used parts?
 
  #2  
Old 08-23-2010, 10:24 AM
Junior Member
Thread Starter
Join Date: Aug 2010
Posts: 4
Default

Thanks for everyone who posted with their suggestions. /sac

I fixed the problem, and it didn't cost a dime.
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Jujubong
General Tech
0
09-07-2013 08:52 PM
minuteman
General Tech
1
01-28-2012 03:00 PM
raceline
PRIVATE For Sale / Trade Classifieds
0
05-07-2009 08:58 PM
minimojo
07-up MINI Cooper/Cooper S (R56)
2
08-01-2008 09:43 PM
Jlotz
General Tech
2
06-30-2008 02:30 PM


Thread Tools
Search this Thread
Quick Reply: Coolant temp gauge pegged...


Advertising
Featured Sponsors
Vendor Directory

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.