Just bought a A4 2.0 TDI S line, 100000 miles on the clock , one previous owner , full Audi service history. First impressions after driving a 3 series for the last year and needed something bigger that doesnt scare me as much when driving in snow and ice...... was good! Feels lovely to drive , and saving money on fuel already! The BMW drank for fun... approx cost for me on the 3 series was £70 a week the A4 is £50 a week.. nice! Now i have researched quite a lot before i bought this car and expect to have to replace a few bits and pieces as i go along , ie Turbo?? , Wheel bearing , air con... if im unlucky ! The belts and pumps have been done... so all good but, after driving it for 3 weeks im getting a groaning noise while steering at low speeds , ie doing maneuvers , 3 point turns etc... in forward and reverse , im hoping this is just power steering fluid that needs topping up. Any advise would be great....