In this video I will show you how to clean your Turbo using Mr Muscle foaming oven cleaner, for under £5 and free up your VNT mechanism.

My Audi A3 110 tdi was dropping into limp mode up the steepest of hills due to deposit build up of carbon on the turbo vanes and the actuator not having its full range of moment.

Important: Only do this on the cast iron side! The Sodium Hydroxide will eat through aluminium on the cold side.