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D3 - Transmission Gearboxes, diffs, drive shafts.

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  #11  
Old 22nd April 2016, 08:41 AM
snapdragon snapdragon is offline
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Originally Posted by Architex_mA8tey View Post
I think if its a 3.0 tdi D4 then you will get the 7 speed s-tronic gearbox but for the 4.2tdi and S8 and W12 etc they stuck with the ZF 8 speed as it can handle more torque than the s-tronic box
I just checked Audi website and thankfully not.. that would have been a deal breaker for me....
"8-speed tiptronic transmission with electronically-transmitted shift information and Dynamic Shift Programme (DSP)"
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  #12  
Old 22nd April 2016, 09:47 AM
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Originally Posted by snapdragon View Post
I just checked Audi website and thankfully not.. that would have been a deal breaker for me....
"8-speed tiptronic transmission with electronically-transmitted shift information and Dynamic Shift Programme (DSP)"
oh ok my bad, I was foolishly assuming that what they had applied to the A7 they would have also applied to the A8 but it seems not!!
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  #13  
Old 22nd April 2016, 12:28 PM
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I've never driven a D4 so can't comment on them, but my X5 has the ZF 8HP 8 speed transmission which is probably fundamentaly the same as the one in the D4 and it is a fabulous gearbox.

Both our family cars have been autos since 2006 and there have been a few before this one, all of which I've often switched to manual control especially for more 'spirited' driving.

I can honestly say I barely touch the paddles on the X5 though, it's just not necessary, in fact I probably couldn't tell you which gear I am in most of the times, the gear changes, up and down, are almost imperceptible.

And you know how some auto boxes have that kind of hesitation when slowing down at roundabouts, then speeding up again? Have never noticed that with this car.

If it's as good in the D4, then I'd highly recommend it.
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Old 22nd April 2016, 12:36 PM
HPsauce HPsauce is offline
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I've been test-driving a few cars with 8-speed auto boxes recently, though I don't know who makes the boxes, but they've all been extremely smooth with imperceptible changes.
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Old 29th June 2016, 09:26 AM
LordHefner LordHefner is offline
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Quote:
Originally Posted by HPsauce View Post
I've been test-driving a few cars with 8-speed auto boxes recently, though I don't know who makes the boxes, but they've all been extremely smooth with imperceptible changes.
I can concur with this, I own the D3 Quattro Sport and looking at some point to get a V8 LWB 4.2Tdi and the test drive on that went extremely well, it was a very smooth ride, even spirited driving was coped with exceptionally well. I'm not sure what's in it, but what ever it is, it works very well. I would imagine a remapped D4 V8 4.2 Diesel to show the D3 S8 a trick or two, as I've driven one on those also and I don't think it would take much more power and torque to make it the quicker and faster car.

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Old 29th June 2016, 11:11 AM
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Hmmm... just clicked the link in your sig... 405mm rotors with 8 pot calipers and all hardware including pads and lines for £1479 "directly from Taiwan". Sounds good value.. too good... but I'm not sure I'd want those on my car... Any real-world reviews or opinions on them?
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Old 29th June 2016, 12:00 PM
mattylondon mattylondon is offline
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Quote:
Originally Posted by Lee S View Post
Hmmm... just clicked the link in your sig... 405mm rotors with 8 pot calipers and all hardware including pads and lines for £1479 "directly from Taiwan". Sounds good value.. too good... but I'm not sure I'd want those on my car... Any real-world reviews or opinions on them?
Hi Lee. would you be interested in the same spec but from, say, Brembo?
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  #18  
Old 29th June 2016, 12:07 PM
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I'm a bit of an OEM freak, so I think I'd go for the Alcon kit that's standard on the RS6 but can't remortgage the house just yet (), but I'd consider anything if they work and have good real-world reviews. They certainly look the part, but what's QC and material quality like? How long do pads and discs last? What's the corrosion resistance like, what are the spares availability, etc... I know Brembo and AP and others do kits, but are they going to be as good as 420mm RS6 ceramics? Better than the standard 360 or 385mm steels? Sorry .... This is turning into a thread hijacking now...
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  #19  
Old 30th June 2016, 04:47 PM
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Originally Posted by Lee S View Post

As I said, speak to MRC as they are the boys to ask. The box in mine is the same box as an RS6 I think and the Q7 and MRC told me NEVER to expect anything much in the way of snappy shifts. It's just not going to happen due to design. They may be able to tweak it slightly but tbh is it worth it? I don't find it lacking any more and I tend to drive around in "Drive" and floor it and off it goes. I very rarely use Sport mode to be honest as with the extra torque of the remap, "D" mode works a treat coupled with a heavy hoof and kickdown.
Well, My RS6 did have (what I firmly believe to be) pretty much the same 6 speed box as the D3, albeit with different final drive ratios.

The changes were pretty slick from factory, and even quicker after the MRC remap. I mean instant. They had to be. 700 ponies would see 60 gone in sub 4 secs, so a rapid change was needed. Smooth as silk too, although you could catch it out when using tiptronic....

Our Q7, and most of my D3's have had a very 'comfortable' shift pattern on the box, no real urgency.

The D3 S8 though, and my C6 S6, both had a bit more urgency about them.

My conclusion would be that the 'S' petrols are set up for a quicker change, and the 8's and diesels are set more for comfort, which all makes sense.

Perhaps the diesels have a significant flywheel effect, and rapid changes are just not possible ? I know the V10 is a very lightweight engine, and changes revs like a motorbike. Its like no other car engine I've ever driven....

The D4 8 speed box is like fluid. You never know its changed. Its weird, its gone through several gears before you even hit 20mph. If you didn't have an indicator the dash, you'd never know
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  #20  
Old 30th June 2016, 08:46 PM
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Had a firmware update on the box on My D3 S8 It was done while the fluid was replaced with the newer spec stuff.
It changes gear fine, no noticeable difference from before. One thing Mcakies said though, don't go looking for faster downchanges, you won't get them, its the nature of this gearbox. It changes up OK, but could do with snappier downshifts.

I have a 3.0 TDI VW which has an 8 speed DSG box, which is fantastic
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