A4 (B7 Platform) Discussion Discussion forum for the B7 Audi A4 produced from 2005-2008.5

Coolant leak above control arm

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Old 07-15-2022, 05:57 AM
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Default Coolant leak above control arm

I've been trying to figure this out but I don't know where the leak source is. The coolant leak is coming from right above the passenger side control arm. Is there anything that sits right above that can break and cause the coolant to leak out?

I recently replaced my temp sensor cuz it was giving me crazy readings (overheating then normal, overheating when turning on the car causing it to low idle and not start, the temp gauge going from max to min and back in seconds...etc) after I finished this leak popped up, but the sensor is dry so I know it isn't that.

There's also a common failpoint on a flange on the back of the engine but the leak isn't coming from the middle so it can't be that either.

if anyone has any ideas pls that would be greatly appreciated !
Old 07-15-2022, 07:27 AM
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Coolant flange.
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