SL-Class (R129) 1990-2002: SL 280, SL 300, SL 320, SL 500, SL 600, SL 60 AMG

SL/R129: overheating

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Old Jun 12, 2013 | 07:30 AM
  #1  
mrbassman3's Avatar
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1993 mercedes 500sl
overheating

I am having an overheating problem. I have changed hoses, thermostat,
flushed radiator, checked for head gasket leaks and head cracks, water pump working. Any ideas? Bob
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Old Jun 12, 2013 | 03:05 PM
  #2  
chtaylor's Avatar
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From: California
1992 400E, 1997 SL500, 2009 R350, 1977 Ericson 32
Are your auxiliary electric fans turning on as and when they should?
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Old Jun 18, 2013 | 03:39 AM
  #3  
las769's Avatar
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From: New Orleans
1990 300 SEL 1999 420sel, 1999 ML320, 1996 500sl,2001 sl500,1999clk320, 2002 S600
When does it overheat sitting in the driveway running down the highway
a/c on or off
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Old Jul 8, 2013 | 11:36 AM
  #4  
SRHsl600's Avatar
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From: Eastern Kansas
94 SL 600, 98 993, 89 XJS Conv., 85 Daimlier Princess 16 Hybrid Lincoln 16 Chevy crewcab
Where in the World are you? Your list and the forum questions sound complete.
In Kansas the radiator fins can become "gunked" with cottonwood fluff. When I have dismantled the engine bay on barn finds I have always been startled with all the "crap" that doesn't clean out with a car wash!
Good luck with your quest.
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