Today I replaced the Fuel Pressure Regulator, as discussed in this thread: http://forum.a8parts.co.uk/showthread.php?t=8351
I did buy a "cheap" Meat & Doria one (MD75013) but am prepared to get the OEM Audi one in due course if that is unsatisfactory.
Although I did release the pressure by undoing the 17mm nut on the fuel feed pipe it wasn't actually pressurised, though the car had been unused for nearly 2 days and it was in the cool of the early morning.
Getting the old FPR out was a bit of a struggle, it was very tight. Mole wrench to the rescue, with lots of wiggling and rotating. The new one went in fairly easily with just a firm push and a twist.
Turned the ignition on and could briefly hear the fuel pump refilling the unit until it stopped. No leaks evident so started the car and it was fine.
Went for a short drive and all seemed OK and suitably brisk, but the symptoms are intermittent so only time will tell.
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2003 D2 FL S8. Irish Green Pearl/Beige. Solar sunroof, auto-dim mirrors, electric rear seat functions and extended leather. Ski hatch retrofit. Aftermarket reversing camera. DVB-T and XCarlink now removed as redundant.
2016 Volvo V40 T5 Cross Country (4WD) with ALL the toys including adaptive cruise etc. etc. Osmium Grey with Blonde/Charcoal leather interior. Polestar performance "optimisation".  (Even rarer than a D2 S8!) Oh, and a brand new engine at just under 30,000 miles on the factory one! 
Finally: gone, but not forgotten.....
1998 D2 PF S8. Agate Grey/Platinum. Every option (I think) except electric rear seats, Tiptronic steering wheel, ski hatch, towbar & dimming door mirrors.
e.g. Cruise control, NavPlus/TV, Bose, GSM, Xenons, Solar roof, Parking sensors, Alcantara/leather everywhere of course.  (internal dimming mirror added later)
1998 (very early) Ford Focus 1.8 Zetec; ABS/TCS, Heated screen/mirrors, Aircon. Added Auto-dim mirror, Leather seats, Trip computer, Cruise control, OEM Ford SatNav with CD changer.
And before that a lot of Rover 800s, a few oddities, a lovely Triumph Dolomite 1850HL with Overdrive and way back in my schooldays an Austin Seven aka Mini 850!
Last edited by HPsauce; 1st July 2014 at 09:19 AM.
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