S-Class (W116) 1972-1980: 280S, 280SE, 280SEL, 350SE, 350 SEL, 450 SE, 450 SEL, 450 SEL 6.9, 300 SD

80 300SD (W116) running hot

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Old Feb 19, 2008 | 01:36 PM
  #1  
94E420's Avatar
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From: California
2006 SL500
Unhappy 80 300SD (W116) running hot

Recently I had my mechanic replace all of the tubing that connects to dreaded servo on my w116 diesel.

Since I’ve had the car back its running very hot almost into the red. Even in below freezing temps. I addressed this with the mechanic and he couldn’t find the problem.

Prior to having the tubing replaced engine temp was NEVER an issue.

What did he do that is causing this issue?

Thanks!!
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Old Dec 25, 2008 | 10:49 AM
  #2  
harkgar's Avatar
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Joined: Apr 2006
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From: Toronto
2006 E320 CDi, 2008 3/4 Ton Suburban, 2007 "rice rickshaw" Accord 5 speed
[QUOTE=94E420;2662714]Recently I had my mechanic replace all of the tubing that connects to dreaded servo on my w116 diesel.

Since I’ve had the car back its running very hot almost into the red. Even in below freezing temps. I addressed this with the mechanic and he couldn’t find the problem.

Prior to having the tubing replaced engine temp was NEVER an issue.

What did he do that is causing this issue?

______________________________________________
Merry Christmas.

When you say tubing did you mean the radiator hoses? A friend of mine has the same car, same year and I noticed that his return coolant hose on the passenger side (in front of the battery) was pinching on this small caliber rubber tube. Check on it.
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Old Jun 28, 2009 | 07:33 AM
  #3  
240D 3.0T's Avatar
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From: Federal Heights, CO
1982 300D VNT, 1980 240D 3.0T, 1982 300TD
Air needs to be burped from the system. Get the right front corner up in the air and let the engine get warm.
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