I have a problem with a slightly uneven idle on my wife's 2004 A3 8P 2.0 TDi. There are obviously various threads on this great forum with information about what might be the reason for this situation, however... I have VAGCOM'ed the car and there are no faults although the DIS does sporadially illuminate the low coolant amber light on start-up. The car has not lost any fluid though in 2.5 years so I suspect the coolant reservoir sensor is a little dodgy. The light goes out of its own accord after about 2 mins of driving. I guess the sensor might be causing the problem, but I'm inclining towards chasing up another possibility first. My hunch is that the EGR system is at fault. The idle hunts between about 780-850rpm and the associated air flow in g/sec illustrates the same tendency. I really know nothing about the A3 and its EGR cycle, but flicking through the measuring blocks with VAGCOM I can see that there is a discrepancy between demanded and achieved EGR flow? Is that the right terminology? Maybe the EGR valve is on the way out, or rather, after 82K miles, is blocked up. I'd like to ditch the EGR and have seen various blanking plates (Allard? Jabbasport?) but it seems Allard are out of business? Can someone point me in the right direction of a full system i.e., a blanking plate, catch-can etc etc? In addition, if I'm going to change out the EGR it really seems pointless not to clean the inlet at the same time - although of course, the EGR seems a relatively easy job, whereas getting behind the block to get the inlet out seems much more involved... However, try as I might, I have not been able to locate a "How to" for this on the 8P A3? I have installed Elsawin v3.4 but would you believe it, it says nothing about how to remove the inlet manifold! Similarly, the Haynes manual only goes to 2003 and although various WWW pages detail the process for a Jetta TDi, but nothing for the 8P! Can anyone shed any light on the issue? I'd like to know if its easy enough to do at home? Many thanks for any help. Great forum.