Coolant temperature gauge acting up....
Thread Starter
Junior Member
Joined: Dec 2006
Posts: 45
Likes: 2
From: Seattle
Silver 1999 C43 AMG
Coolant temperature gauge acting up....
Every other day or so for the past couple weeks my coolant temperature gauge will read and stay at 40 degrees when I'm driving. It usually happens when I'm driving home late at night. It's a 20 mile drive home from my girlfriends house and takes about 25 minutes. During this time the gauge stays at 40 and won't go to 80 (normal temp) for me unless I drive hard.
What could be wrong? Some days it does it and some days it doesn't. The car sounds and drives normal regardless of the temp gauge so I'm wondering if I need to have it looked at.
What could be wrong? Some days it does it and some days it doesn't. The car sounds and drives normal regardless of the temp gauge so I'm wondering if I need to have it looked at.
Senior Member
Joined: May 2008
Posts: 345
Likes: 0
From: Richmond, VA
1999 W210 E300 Turbodiesel
Every other day or so for the past couple weeks my coolant temperature gauge will read and stay at 40 degrees when I'm driving. It usually happens when I'm driving home late at night. It's a 20 mile drive home from my girlfriends house and takes about 25 minutes. During this time the gauge stays at 40 and won't go to 80 (normal temp) for me unless I drive hard.
What could be wrong? Some days it does it and some days it doesn't. The car sounds and drives normal regardless of the temp gauge so I'm wondering if I need to have it looked at.
What could be wrong? Some days it does it and some days it doesn't. The car sounds and drives normal regardless of the temp gauge so I'm wondering if I need to have it looked at.
just change the Thermostat it'll be fine
