Something I noticed - if I select the ECO mode (2018 Karoq Edition 1.5TSI), the display of the currently selected gear appears on the dash panel with an "E" in front of it.

e.g. E1, E2, E3 etc.

If I park the car and return to it, this will now revert to displaying the gears as D1, D2, D3 etc.

However, I think I am still in ECO mode.

 

So I am wondering if this is just a programming error on the dash panel or whether the gearbox may not be operating in ECO mode without reselecting it each time I drive.

2 hours ago, Kaoli said:

Something I noticed - if I select the ECO mode (2018 Karoq Edition 1.5TSI), the display of the currently selected gear appears on the dash panel with an "E" in front of it.

e.g. E1, E2, E3 etc.

If I park the car and return to it, this will now revert to displaying the gears as D1, D2, D3 etc.

However, I think I am still in ECO mode.

 

So I am wondering if this is just a programming error on the dash panel or whether the gearbox may not be operating in ECO mode without reselecting it each time I drive.

Hello.

Does your car coast in ECO mode?

If so, you can test your theory pretty easily.

My DQ381 always starts in Drive mode when I start the car.

My 2018 SeL with the DQ200 DSG has done this from day 1.

This has been discussed before, albeit quite some time ago the problem is finding the right search term to find the thread..  The conclusion at the time was that they all did it.

It is the dash display that is wrong showing Eco.  The display between the dials showing D1 D2 etc is what is happening.

Test it per what EnterName said. 

 

tom

 

 

.

 

Not sure what you mean by 'coast'... the car does drop to only firing two cylinders when not under load (ACT). So I guess that indicates it remains in Eco mode despite what the dash indicates.

'coasting: is when the gears / drive actually disengages and the vehicle is freewheeling.  So different from just no load or light load on the engine and an ACT going into 2 cylinder mode.    Maybe just do a search 'briskida DSG coasting'.   Plenty theads on it, but different engines DSG,s and age of vehicles do it differently as far as modes etc. 

 

 

Edited 1 July, 20241 yr by Ootohere

When the engine goes into coasting mode the revs drop to tickover and there is no engine braking.

 

It should be obvious if when going downhill you lift off the throttle.

 

tom

20 hours ago, Kaoli said:

Something I noticed - if I select the ECO mode (2018 Karoq Edition 1.5TSI), the display of the currently selected gear appears on the dash panel with an "E" in front of it.

e.g. E1, E2, E3 etc.

If I park the car and return to it, this will now revert to displaying the gears as D1, D2, D3 etc.

However, I think I am still in ECO mode.

 

So I am wondering if this is just a programming error on the dash panel or whether the gearbox may not be operating in ECO mode without reselecting it each time I drive.

The point to note is that the car / ignition has been switched off, therefore any selections eg ECO / Sport will be deselected, and the car will be back to "Normal" until you reselect ECO etc etc.

That is what I thought coasting was (in the days of manual gearboxes). Don't think my car does it at all even in ECO mode. I do notice that the 2-cylinder mode switches off on downhill sections but I think the engine is doing engine braking but presumably not injecting any fuel. Tested that yesterday to make sure that is the case even when ACC is disabled.

 

Will have to try and repeat after making sure that the car is in ECO mode.

The reason I think ECO mode survives an ignition restart is that the Mode button remains illuminated, and when I press the Mode button, the panel comes up with ECO as the 'selected' mode.
It is just the letter next to the selected gear on the dash panel which reverts from 'E' to 'D'.
[If it is different for someone else maybe the car is recognizing them by their mobile phone and setting defaults differently - I didn't set that up]

@Kaoli   If instead of D7 or D6 it shows just D that is because it is Coasting. 

3 hours ago, Ootohere said:

@Kaoli   If instead of D7 or D6 it shows just D that is because it is Coasting. 

 

My Karoq never coasts in Drive.  Have to be in Eco and showing E

 

I realise this is not the same for all vehicles, drivetrains or years.

@logiclee Useful if you say which year your 1.5 TSI ACT DSG is. 

I'll have to do some more tests. I did (very briefly), see a solitary "E" in my test the other day but I think engine revs were quite high and it was (mostly) doing engine breaking despite it being a fairly steep descent.

I don't really understand why the car would need to coast much. When you are rolling downhill under gravity, the 2-cylinder ACT switches off - presumably at that point no fuel is being injected to any cylinder... so you mostly are going to want engine breaking to avoid exceeding the speed limit. If you coasted then you are going to end up wearing the brakes and emitting brake particle pollution that would be avoided by braking with the engine. So perhaps coasting only applies to the transition, or gentle down slopes, when the car is going fairly slowly and the slope is not steep enough to overcome the energy loss of turning the engine and gearbox. I guess that must be the case and that may help me confirm when it is coasting.
[The car is a 2018 model.. J code Summer 2017 to Summer 2018, first registered Jun-2018, DADA engine, 7-speed DSG]

10 hours ago, Ootohere said:

@logiclee Useful if you say which year your 1.5 TSI ACT DSG is. 

 

It's in my signature, 2023

3 hours ago, Kaoli said:

I'll have to do some more tests. I did (very briefly), see a solitary "E" in my test the other day but I think engine revs were quite high and it was (mostly) doing engine breaking despite it being a fairly steep descent.

I don't really understand why the car would need to coast much. When you are rolling downhill under gravity, the 2-cylinder ACT switches off - presumably at that point no fuel is being injected to any cylinder... so you mostly are going to want engine breaking to avoid exceeding the speed limit. If you coasted then you are going to end up wearing the brakes and emitting brake particle pollution that would be avoided by braking with the engine. So perhaps coasting only applies to the transition, or gentle down slopes, when the car is going fairly slowly and the slope is not steep enough to overcome the energy loss of turning the engine and gearbox. I guess that must be the case and that may help me confirm when it is coasting.
[The car is a 2018 model.. J code Summer 2017 to Summer 2018, first registered Jun-2018, DADA engine, 7-speed DSG]

 

As soon as you touch the brake pedal coasting is disabled.

@logiclee On a phone you do not see the stuff to the left on cars.  So all 3 you have are 2023, thanks.

Different from a 2018 then. 

 

As soon as you touch the accelerator again and apply pressure the 'Coasting' is ended and drive is engaged.

Edited 4 July, 20241 yr by Ootohere

Finished testing - it is now clear. Thanks all for your help. Does not coast in (normal) Drive. Only when gearbox is in E(co) mode.
Gearbox reverts to normal D(rive) mode after parking despite Mode button remaining orange, "ECO" remaining selected when you do press the Mode button, and the appearance of the "ECO" symbol on the display panel from time to time (when 2-cylinder mode is in use).

So for best economy I need to use the Mode button to reselect "ECO" mode every time I set off.

9 hours ago, Kaoli said:

Finished testing -

So for best economy I need to use the Mode button to reselect "ECO" mode every time I set off.

That’s the long and short of it - curious thinking / logic by VW’s software writers.

@Kaoli  Have you done brim to brim checks on similar or identical trips using the different modes to know what gives the best economy, lowest fuel consumption or are you just assuming.

 

Getting a move on and lifting off the accelerator and going into 2 cylinder mode when no load on the engine might be more economic than ECO and coasting.

It all depends on roads / location / traffic etc. 

 

Different strokes for different folks. 

 

The test I did was simply to establish that coasting only happens in "E" mode, and as I already had observed, the car reverts to "D" after parking even though the Mode button and display suggested otherwise.

 

Thinking about it - on a steeper downhill, engine braking might be more efficient than coasting as I presume no fuel needs to be injected when engine braking while to keep the engine idling during coasting there must be fuel being injected. I guess one leaves that to the software program of the car - it might help to be using ACC as that may engage engine braking as speed builds up on a downhill stretch - rather than waiting for the driver to hit the brake pedal.

 

Another thought - which mode do they use when establishing official MPG figures? I guess ECO. Could it be that it is primarily designed to get the best mpg under the specific conditions of the test?

 

Overall I am getting about 35mpg with mix of long distance and local driving. Maybe it will improve not that I may start selecting ECO before each trip.

 

 

On the trials I've done the only time I've noticed an improvement in economy in ECO is in hot weather when it noticeably takes longer to cool the car as the aircon is being limited.

 

For the reduced response of the throttle I don't feel eco is worth it so I just use normal.

 

If you really need to save fuel then I'd suggest an Octavia  

 

 

 

On 03/07/2024 at 20:06, logiclee said:

 

My Karoq never coasts in Drive.  Have to be in Eco and showing E

 

I realise this is not the same for all vehicles, drivetrains or years.

Thats very interesting. DQ200 Coasting is quite different to DQ381 coasting. My 2.0 TSI Sportline will coast in all modes, ECO, Sport, Drive and Manual when it shows E, S D or M respectively in the gear indicator. It also coasts from any gear.

9 hours ago, thamestrader said:

Thats very interesting. DQ200 Coasting is quite different to DQ381 coasting. My 2.0 TSI Sportline will coast in all modes, ECO, Sport, Drive and Manual when it shows E, S D or M respectively in the gear indicator. It also coasts from any gear.

 

I've had coasting on DQ381 and DQ250 on other models but these had separate option to enable/disable coasting options in the menus. Not tied to modes.

 

I've very surprised you have coasting in manual though, I've not seen that in any other DSG I've had.

1 hour ago, logiclee said:

 

 

I've very surprised you have coasting in manual though, I've not seen that in any other DSG I've had.

I agree, I have the DQ381 in my current Kodiaq and it coasts in D and E but definitely doesn’t in Sport or manual.

Edited 8 July, 20241 yr by Kenny R

2 hours ago, logiclee said:

 

I've had coasting on DQ381 and DQ250 on other models but these had separate option to enable/disable coasting options in the menus. Not tied to modes.

 

I've very surprised you have coasting in manual though, I've not seen that in any other DSG I've had.

I will conduct some tests to verify S and M mode coasting - M mode coasting does seem an odd thing. What I have noticed with coasting is that it requires a very gentle release of the accelerator, removing the right foot abruptly leaves it in gear

9 hours ago, thamestrader said:

I will conduct some tests to verify S and M mode coasting - M mode coasting does seem an odd thing. What I have noticed with coasting is that it requires a very gentle release of the accelerator, removing the right foot abruptly leaves it in gear

 

13 hours ago, logiclee said:

 

I've had coasting on DQ381 and DQ250 on other models but these had separate option to enable/disable coasting options in the menus. Not tied to modes.

 

I've very surprised you have coasting in manual though, I've not seen that in any other DSG I've had.

 @logiclee Tests conducted, S and M do not coast.  My 2023 Sportline DQ381 has multiple ways to select modes, but I've not seen an enable/disable option in the menus. I use  the Mode button next to the gear lever  to select one of Eco, Normal  Drive, Sport, Individual and Snow. Sport mode can also be selected by flick the gear lever back when in Eco or Normal, flicking again returns to the previous mode. Manual can be selected by knocking the gear lever sideways OR via the paddles. It would be nice if the Modes Menu could be customised to remove unused modes, I use Eco and Normal and have Individual configured with Normal  and Sport steering. If I need Sport mode I use the gear lever.