#1
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Not important, just curious.
What are the differences between the S8 AVP and AQH engines.
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Audi S8 D2 2002 88k mls Ebony pearl effect black. Grey interior. |
#2
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I could be wrong but I think physically they are the same, it's just different software for different emissions standards resulting in slightly different torque curve.
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Currently 8less 2011 Q7 S Line 3.0TDI, 2016 Tesla Model S 90D 8 history: 2006 A8 Sport 4.2TDI quattro SOLD, 1997 S8, reached end of life with gearbox failure |
#3
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Yeah thats it as far as I can tell from comparing them. The AQH has Bosch ME7.1 and the AVP has ME 7.1.1. Based on observation, that 0.0.1 difference will cause the EML to come on for faults with secondary air or secondary O2 sensors for an AVP whereas it doesn't on an AQH (logs a fault but no light), and I believe 7.1.1 also has individual control of the cam timing whereas 7.1 just does them both together. There are minor wiring differences for this iirc.
In the A8 the change from ME7.1 (FL1) to ME7.1.1 (FL2) meant a change from EU3 to EU4, however for the S8 (according to the factory documentation) both versions are EU3. Interestingly, in the UK it appears DVLA didn't spot this and so the FL2 S8 is also rated at EU4. |
#4
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Indeed, that's why my (and other) later models with ME7.1.1 are allowed into London's ULEZ. Not that I'm likely to take the S8 there any time soon......
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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! |
#5
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Thanks for all the replies everyone, much appreciated.
Stay safe.
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Audi S8 D2 2002 88k mls Ebony pearl effect black. Grey interior. |
#6
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You guys are lucky!
I requested the homologation document from Audi, it came back with emissions code 1999/102A/EG which turns out to be Euro 3 Even though my car is late 2001 production. |
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