De-scale, de-oil the cooling system? If the cooling system is up to snuff (which it appears to be, can you hold the computer closer to the radiator?) then the problem has to be something adding heat where it doesn't belong, timing maybe?
Does turning on the heat help? -Curt ________________________________ From: clay <redgh...@comcast.net> To: Mercedes Discussion List <mercedes@okiebenz.com>; SL Discussion List <s...@okiebenz.com> Sent: Friday, July 11, 2014 3:38 PM Subject: [MBZ] Hot under the collar Froggy is having inconsistent cooling issues. I was taking her for an italian tune up this past weekend. I meant to climb the foothills of the Cascades about 32 miles out of town (seattle) doing 70mph. I made it only 22 miles before I had to pull off because the temp was climbing up to the red zone. Got to a service station and drizzled a gallon of water over the block and rad to get temp down. I decided to head back home and give it a better look. No visible leakage. The system was holding pressure fine. I checked the oil for water, but only found it to be black and nasty. This within 500 miles of a change. I am suspecting the shop did not really change the oil. So, I gave it all new oil. Thermostat was changed, along with new hoses and water pump last summer. The AC does not function, so that should have no impact on temps. I have replaced the hood pad, and there are no cats living in the engine bay to add to the heat soaking. Transmission filter and fluids were change two years ago, about 2k miles. Anybody have insight? clay 2002 s430 - Victor, a Stately & well tailored chap 1974 450sl - Frosch - Two tone green 1972 220D - Gump - She was green, simple and ran 1995 E300D - Gave her life to save me against a Dame in a SUV POS 1987 SDL - Beware Nigerian Scammers _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com All posts are the result of individual contributors and as such, those individuals are responsible for the content of the post. The list owner has no control over the content of the messages of each contributor.