What is the problem?
The early version of the TFSI gasoline engines found in the A5, A4 and Q5 have an inherent design fault which leads to high consumption of oil.
The base problem seems to relate to the piston rings, which allow small amounts of oil to leak round the pistons into the cylinders, where it burns and therefore leads to high oil consumption. The typical way drivers become aware of this is when the ‘add one litre of oil’ notice comes up on the dashboard. When this comes up you don’t need to […]