QuestionI just purchased a 1975 Mercedes 450SL, drove it today, parked it and after 90 minutes the hood was still entirely too hot. It is blowing hot air constantly and the temp gauge was over 200. There is something wrong here. This car is get too hot and stays too hot even after its turned off. What can be the problems to check for?
AnswerBest advice:
Do NOT start it again.
Tow it to the nearest Mercedes Benz dealer, and have it checked for plugged Catalytic Converters.
The temperature gauge reads Celsius; not Fahrenheit.
200 Celsius = 392 Fahrenheit = possible junked engine...
Temperature gauge should read 80C - 90C = 176F - 194F average operation.
If it is not plugged Catalytic Converters; the problem is more serious.
Possible issues:
#1. Auxiliary Fan Assembly
#2. Auxiliary Fan Switch
#3. Fan Clutch
#4. Radiator
#5. Thermostat
#6. Water Pump
#7. Cylinder Head Gasket
#8. Freeze Plug
#9. Main Bearing
#10. Oil Pump or Oil Pump Chain
#11. Rod Bearings
#12. Timing Chain
PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1975 Mercedes Benz 450SL
Part: Catalytic Converter
Note: At Manifold
Left
"After-market" OBD II Catalytic Converters Not Legal for Sale in California 1995 ON
Engine: 030109-
H3000-15653 Catalytic Converter Miller IN STOCK $444.30
PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1975 Mercedes Benz 450SL
Part: Catalytic Converter
Note: At Manifold
Right
"After-market" OBD II Catalytic Converters Not Legal for Sale in California 1995 ON
Engine: 030109-
H3000-15654 Catalytic Converter Miller IN STOCK $406.76
PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1975 Mercedes Benz 450SL
Part: Catalytic Converter
Note: Federal
Chassis: 058372-
H3000-50702 Catalytic Converter Miller IN STOCK $453.44
PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1975 Mercedes Benz 450SL
Part: Catalytic Converter
Note: California
Chassis: 058397-
H3000-50702 Catalytic Converter Miller IN STOCK $453.44
http://catalog.eautopartscatalog.com/mercedesshop/sophio/wizard.jsp?partner=merc...
