1979 240D - temp gauge says hot, but not hot - Mercedes-Benz Forum

LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 02-10-2012, 01:53 PM Thread Starter
BenzWorld Junior Member
Date registered: Feb 2012
Vehicle: 1979 240d - 248000miles as of 3/1/12
Location: Riverside, Ca 92506
Posts: 7
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
(Thread Starter)
1979 240D - temp gauge says hot, but not hot

Ok here we go. So the car starts and runs around the block but the temp gauge quickly climbs up. The battery light on dash is also staying on while I'm driving. My last trip around the block it got up to about 195 on the temp gauge but when I got home the block isn't super hot and when I took the radiator cap off after I turned off the car the fluid is hot but not hot enough to scald my fingers. also last night I went down the street and when I tried to shut off the car it didn't want to shut off right away. I had to put the key in and turn then take it back out a couple times before I got it to turn off. Any ideas? Really need the help.

TylerIce is offline  
Sponsored Links
post #2 of 2 (permalink) Old 03-15-2012, 02:23 PM
BenzWorld Newbie
AZDZL's Avatar
Date registered: Feb 2012
Vehicle: 1978 300d
Location: In a very hot desert
Posts: 4
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Hi Tyler,
I would start by checking the "w" shaped vacuum line cluster, disconnect and reconnect each of those small lines and be sire to inspect the plastic junction as well. Also may want to check the temp sending unit on the block to be sure it's not all gummed up or loose. Lastly I would check and replace the thermostat. I ma still a MB newbie but I'm learning fast Hope this helps!
AZDZL is offline  
Sponsored Links

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

    Similar Threads
    Topic Author Forum Replies Last Post
    brake lights, fuel gauge, temp gauge quit working badwin W201 190-Class 12 07-24-2015 06:55 PM
    Help! Right brake light, cruise control, fuel gauge, temp gauge, oil gauge out rsteckly W201 190-Class 1 09-27-2011 04:25 PM
    Temperature variance -- actual temp vs. gauge temp reading soundquest W124 E,CE,D,TD Class 7 06-19-2011 08:03 AM
    Problems fitting 500 fuel gauge-oil pres'-water temp gauge cluster to 560 clocks mutley666 W126 S,SE,SEC,SEL,SD,SDL Class 2 10-10-2005 09:03 AM
    When outside temp is higher than 40', how come the temp gauge still shows 40'? noelb W163 M-Class 5 04-16-2002 01:43 PM

    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