Volvo XC40 Forums

Moss wrote: ↑Wed Jul 21, 2021 10:49 pm

Felindre wrote: ↑Wed Jul 21, 2021 8:25 am

Oldie wrote: ↑Wed Jul 21, 2021 6:28 am Just throwing a thought out there - was your Tiguan automatic with the DSG box?

Having driven both, the DSG box is very different to the Volvo and doesn't disengage like a DGS - and these type's do tend to introduce more "drive motion" especially in slow/ stop start traffic.

Out of the two types I also feel that the Volvo auto box delivers a more relax drive and felt DSG boxes a little bit too snappy - great though for the more "sporty" drive's out!!

Also it's my understanding that the springs on the sport chassis should have a stiffer spring than standard - that's what was stated on 2020 built cars (MY21)?

I understood the Volvo box was also a dual clutch and virtually identical to the VW.

FYI
The Volvo XC40 8 speed automatic gearbox is an Aisin AXF8Fxx (or TG-81SC as Volvo calls it), also used by many other car manufacturers. Volkswagen uses it in the US version of the Tiguan.

https://en.wikipedia.org/wiki/AWF8F35

Felindre wrote: ↑Sun Aug 15, 2021 2:41 pm Agreed, But can't explain the coasting...

Stanno wrote: ↑Sun Aug 15, 2021 2:55 pm

Felindre wrote: ↑Sun Aug 15, 2021 2:41 pm Agreed, But can't explain the coasting...

Doesn't it coast in Eco drive mode?

Stanno

Felindre wrote: ↑Sun Aug 15, 2021 11:47 pm

Yes, but how do you coast with a torque converter? This is what puzzles me about the statement that it's a regular TC auto box, as it's whole behaviour matches my experience of DSG's.

Cornishman wrote: ↑Mon Aug 16, 2021 8:59 am

Felindre wrote: ↑Sun Aug 15, 2021 11:47 pm

Yes, but how do you coast with a torque converter? This is what puzzles me about the statement that it's a regular TC auto box, as it's whole behaviour matches my experience of DSG's.

The B4/5 box is deffo TC, the T4/5 is DC... AS to not explaining the coasting, there would be many options... Clutch between TC and box to disengage, feather the TC, non-selectable neutrals etc...

ciuncky wrote: ↑Mon Aug 16, 2021 11:58 am

Cornishman wrote: ↑Mon Aug 16, 2021 8:59 am

Felindre wrote: ↑Sun Aug 15, 2021 11:47 pm

Yes, but how do you coast with a torque converter? This is what puzzles me about the statement that it's a regular TC auto box, as it's whole behaviour matches my experience of DSG's.

The B4/5 box is deffo TC, the T4/5 is DC... AS to not explaining the coasting, there would be many options... Clutch between TC and box to disengage, feather the TC, non-selectable neutrals etc...

If i where to put my money on something, it'd be non-selectable neutral. Not from a mechanical point of view, but strictly from the feel of the car.
When stopped, if you have live fuel consumption in the dash you'll notice consumption is 0.4 gph, then drops to 0.3 and then to 0.2 in a matter of seconds.
While engine revs sit idle at 900, the only explanation of the lower consumption would be reduced load on the engine, which would suggest it somehow decouples from the TC or most probably gets shifted to a Neutral?

Just an idea