Hello.

One thing that really annoys me with the 7 speed DSG on my 1.2 TSI Octy is that

when driving downhill, it uses very low gears, causing the engine to be at 3000-4500+ RPM.

From what I understand, the DSG senses that there is a decline, and lowers gears to appy engine breaking. This is a good thing, but in my opinion, it uses very low gears for the speeds that I'm driving downhill (fast and long downhill roads) which are about 60-80 km/h.

The same goes when driving uphill, it downshifts too much, causing the engine to be at high RPMs, which is not so good for fuel consumption.

Is there a way to change this using VCDS? Maybe make the DSG incline/decline sensor a bit less sensative? Maybe change the incline percent, so that it does the above only when going down a really sharp decline at low speeds?

Of course I can manually shift it using the Tiptronic, but it gets annoying, as my everyday drive to/from work is pretty hilly.

It seems that the engine has enough torque to drive the uphill incline in one or two gears higher than the DSG selects, so why doesn't it use them to save fuel?

Thanks in advance.

Edited 14 July, 201114 yr by meetyg

I don't think the inclinometer comes into play so much when going uphill - it uses the load on the engine, engine revs and road speed to determine the gear.

The 1.2 is a small engine in a big car so it needs to keep buzzing to stay in the power band and pull all that weight up a steep hill. A bigger engine will have more low-down torque and will pull a higher gear. I think it is the price you pay for the small engine.

My 1.8 DSG is the opposite to yours - I often feel it selects too high a gear going up hills! But like yours it will sometimes drop down as low as 3rd gear and 4000 rpm to give engine braking down quite moderate slopes.

You want to try a 2.0 CR170 when its remapped it will go almost vertical in 6th!

I don't think the inclinometer comes into play so much when going uphill - it uses the load on the engine, engine revs and road speed to determine the gear.

Going uphill isn't as bad as going downhill in terms of engine revs...

Any way to change this anyways?

Don't think it's because lack of torque, it delievers maximum hp and torq well below 2000rpm.

But you do not benefit of using higher gears uphill, i've several times compared consumption using 6 and 7 uphill instead of 4 when in auto. It tend's to use same amount of fuel uphill.

Think it's because higher revs goes easier on the engine then low revs and more throttle.

Might be wrong?