SL/R129: I am helping a friend with his Benz!
Thread Starter
Newbie
Joined: Aug 2019
Posts: 1
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From: Metro Phoenix
1994 Mercedes SL600
I am helping a friend with his Benz!
Have a friend who is having an issue tracking down the reason why his 1994 SL600 is suddenly running too hot! Changed the radiator, thermostat and the fan clutch! It is so costly to continue to guess as to why he is having this issue now! He doesn't live in the same state as I do!
Any suggestions would be most appreciated!
Any suggestions would be most appreciated!
Last edited by Littlelove1; Aug 13, 2019 at 05:29 PM.
Banned
Joined: Jan 2006
Posts: 1,982
Likes: 393
From: Atlanta, unfortunately
'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
You didn't specify how you know the engine is running hot. If you are relying upon the temperature gauge in the instrument cluster, then the gauge or the temperature sensor could be in error.
There exists a coolant temperature sensor for the climate control. I'd run diagnostics as explained here to see what temperature it is reporting.
There exists a coolant temperature sensor for the climate control. I'd run diagnostics as explained here to see what temperature it is reporting.
Senior Member
Joined: Dec 2014
Posts: 326
Likes: 47
From: Yorba Linda CA
94 SL320 98 SL500 99 SL600 07 SL55
Before I went any further I'd check for a failing engine harness, see if the insulation is brittle and crumbling at the plastic connectors. If so all the parts you throw at it will be a waste of a lot of money.
