C320 Coolant leak
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Joined: Oct 2017
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c320
C320 Coolant leak
the leak is coming from a location above this hose
Engine: 3.2 L V6 (W202 Type? i think)
Back story: Drove thru a huge puddle, one that jolted the vehicle on impact. Next morning I notice a huge puddle of coolant. Also front engine splash shield has a tear near the driver-side front wheel (this damage predates the puddle incident). I attemptted to trace the leak and discovered coolant gushing from a location right above the lower radiator hose's connection to the engine (behind this black pulley). I don't know if the puddle incident had anything to do with it, but I didn't notice such a huge leak (accompanied by the "low coolant" indication) until the very next morning (24hrs max). Attach is an image and a video of what I saw. Where can the coolant be coming from? And what's the likely fix?
Last edited by shneider177; Oct 30, 2017 at 03:40 PM.
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Joined: Sep 2025
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Sounds like the puddle impact pushed something into your radiator or broke the lower radiator hose fitting. If it’s leaking above the lower hose near a pulley, check the water pump weep hole or the plastic flange on the thermostat housing both crack easily. Also could be the coolant crossover pipe o-rings. Puddle probably didn’t cause it directly but maybe finished off a weak spot. Replace whatever is cracked. Don’t just patch it.
