2008 Audi S5 4.2 V8- coolant leak? : MechanicAdvice (Martin Garza) It is tedious but not that bad. If you're losing oil as well it may also be the water-to-oil cooler. As oil leaks, the engine loses ability to lubricate itself.
GOt the car back - new coolant leak from the oil cooler.
Gotta remove the manifold to get to the gaskets.
We've had it on the lift several times and finally tracked it down. What makes an Audi oil cooler leak oil, is this difficult to repair and how long does the repair take? Engine coolant leaking from oil cooler.
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