Other than the auto tranny cooling lines, what is the difference between the auto radiator and manual radiator on the s4 86-88 fc? Are the sensors exactly the same? coolant temp, rad switch connector, etc

 

An OEM radiator from an automatic has an extra cooling loop at the bottom. The only sensors on any FC radiator are the water level sensor (top) and the water temp switch (bottom corner). This will be the same on any FC S4/S5/auto/manual. The water temp sensor is on the back of the water pump housing.

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