HerrGruyere

Hi!

I'm new here. I should probably post in the introduction forum (if there is one). Short backstory: I'm a BMW guy, but my wife owns a 2010 Audi Q7 3.6L with the premium package. So, I'm a bit new to Audis. I do most of the work on the cars, and I find Audis to be, erm, "annoyingly engineered" to put it lightly. Changing the oil filter comes to mind...

Anyway, enough light bashing. I was in the midst of tracing the leak from sunroof drains and A-pillar and happened to have the hood open to make sure the car's computer was still dry. I got a big whiff of coolant under the hood toward the front, and noticed a bunch of white, dried coolant that splattered all over the passenger side components (air filter box, some other hoses, etc.). Mostly, the dried coolant was on a hose that leads up to the reservoir tank. The tank is full and the car has been running at normal temperature. I see the coolant is very slowly trickling down the passenger side of the radiator.

Does anyone have any ideas? Maybe a similar problem? Is it a cracked radiator or maybe just the connector for the hose leading up to the reservoir tank?

Any help is appreciated. Have a great one!

B490MTL

Coolant tanks on Audi's are notorious for cracks, I'd check there first.

HerrGruyere

I've been meaning to say thanks for your tip! So... Uh... Thanks!!

I'll look into it haha

smith2010Q7

look at the water pump when the fan turns on it tends to blow coolant all over the place. look from underneath for the weep hole

HerrGruyere

Update to this thread: I found where the leak is. It's for sure coming from a small hose that connects to the passenger side of the radiator on the top. It's coming right from that connection.

Is this hose just a tiny two foot long thing or is it one of the $120 hoses that run the length of the front of the car? The diameter is about the size of a nickel.

HerrGruyere

Final update: I fixed the leak with some hose from Advanced Auto. Super easy fix. The leak was getting rather bad.