420 SEL Running 10 degrees hotter than normal - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 04-19-2005, 03:28 PM Thread Starter
BenzWorld Veteran
Minkoff's Avatar
Date registered: May 2004
Vehicle: 1985 500SEC
Location: Coto De Caza, CA
Posts: 613
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
420 SEL Running 10 degrees hotter than normal

My wife's 1991 420 SEL started running 10 degrees warmer than normal with flucuations on the gauge. My first instinct was to replace the fan clutch. That seemed to cure the flucuations but it still runs too hot. I talked to a reputable mercedes mechanic in Costa Mesa Ca and he told me that 3 out of 5 new fan clutches are defective. When he replaces a fan clutch he buys used ones and has better luck. Any ideas out there? The car has no leaks and a new radiator. Thanks in advance.
Minkoff is offline  
Sponsored Links
post #2 of 2 (permalink) Old 04-19-2005, 08:27 PM
BenzWorld Elite
MBeige's Avatar
Date registered: Jan 2004
Vehicle: W-1-2-3 Go!
Location: California
Posts: 16,093
Mentioned: 1 Post(s)
Quoted: 197 Post(s)
RE: 420 SEL Running 10 degrees hotter than normal

Try the thermostat first. Sign of bad t-stat is fluctuating temperatures, among others.

MBeige is offline  
Sponsored Links

  Mercedes-Benz Forum > General Mercedes-Benz Forums > General Mercedes-Benz

Quick Reply

Register Now

In order to be able to post messages on the Mercedes-Benz Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


  • Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
    Thread Tools
    Show Printable Version Show Printable Version
    Email this Page Email this Page
    Display Modes
    Linear Mode Linear Mode

    Posting Rules  
    You may post new threads
    You may 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


    Title goes here

    video goes here
    description goes here. Read Full Story
    For the best viewing experience please update your browser to Google Chrome