My car out of the blue starting running hot
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1993 BMW 740i Question: How can I repair a small leak the radiator and is my fan belt drive or electric
Answer #1M & R Car Import Services (69 Answers) , Chicago, IL - (773) 840-8204M and R Car Import June 29, 2013, 19:54Technician
Given the fact that your radiator plays such an important roll in keeping the engine/transmission oil properly cooled. I would NOT repair radiator. I would replace it. Worst case scenario (engine failure) is too expensive to attempt to save on a radiator cost replacement. Your vehicle has both mechanical hydraulic fan clutch (main engine cooling fan) & an electrical auxiliary fan that works w/ air conditioning and as a secondary back up cooling fan if primary were to fail. Good luck.