DSG Thumping Jerking

[kaitan]

Hi Guys,

I've recently bought a 2012 march built compliance only in 11/2013 vRS TDI Liftback with currently 8000km on the clock . I've recently bought DTUK and fitted it with map 3.1+. I do not know whether it's me or not but I realise in the morning when I start the car and move from P to D and press throttle slowly (like getting out of a car park) the car jerk and i can feel that the car jerks forward. It might be me pressing the throttle too quick after engaging the D gear.

Anyone experiences this ?Am I thinking too much? or maybe it's the DTUK that i need to lower the map?

[h100vw]

Take the box out and see if it goes away. Not many people have DTUK boxes, so I doubt you get a personal experiences.

Gavin

[h100vw]

Take the box out and see if it goes away. Not many people have DTUK boxes, so I doubt you get a personal experiences.

Gavin

[h100vw]

Take the box out and see if it goes away. Not many people have DTUK boxes, so I doubt you get a personal experiences.

Gavin

[kaitan]

Take the box out and see if it goes away. Not many people have DTUK boxes, so I doubt you get a personal experiences.

Gavin

I will do that. I'll see how i go.

[roshea]

Was this issue happening before you fitted the DTUK box?

[brad]

I will do that. I'll see how i go.

You'll have to do it 3 times

[kaitan]

Was this issue happening before you fitted the DTUK box?

I realise it did but i thought i might have press the throttle too early after changing form P to D

[harlie]

I realise it did but i thought i might have press the throttle too early after changing form P to D

I'd like to get a better understanding.
Does this jerk only happen when you first put it into drive? Or does it happen whenever you start from a stand still?

Does it happen if you take your foot off the brake and don't apply throttle / apply little throttle?

Can you operate the throttle and get the car to operate without a jerk?

The clutch control solenoid and associated valve (part of the Mechatronics Unit) should operate the clutch in a manner that never jerks. The latest DSG firmware allows quite a bit of clutch riding in 1st and 2nd to ensure that there’s no rough engagement, if you get on the throttle fast it should allow it to ride.

[kaitan]

I'd like to get a better understanding.
Does this jerk only happen when you first put it into drive? Or does it happen whenever you start from a stand still?

Does it happen if you take your foot off the brake and don't apply throttle / apply little throttle?

Can you operate the throttle and get the car to operate without a jerk?

The clutch control solenoid and associated valve (part of the Mechatronics Unit) should operate the clutch in a manner that never jerks. The latest DSG firmware allows quite a bit of clutch riding in 1st and 2nd to ensure that there’s no rough engagement, if you get on the throttle fast it should allow it to ride.

Hi Harlie,

the DSG Jerks only when I strat the car then from P to D. It never jerks when I'm at the traffic lights waiting.

I've tested yesterday, After starting the car I changed the gear from P to D but then let it creep instead of pressing the throttle it still jerk.

So what I am gonna do is send it into Skoda to get it checked out but first will remove Dtuk. Sucks that it use to be a dealer near me but now it's closed and I have to travelled 45 mins just to get the car check.

[harlie]

Hi Harlie,

the DSG Jerks only when I strat the car then from P to D. It never jerks when I'm at the traffic lights waiting.

I've tested yesterday, After starting the car I changed the gear from P to D but then let it creep instead of pressing the throttle it still jerk.

So what I am gonna do is send it into Skoda to get it checked out but first will remove Dtuk. Sucks that it use to be a dealer near me but now it's closed and I have to travelled 45 mins just to get the car check.

If it is only when it is started it may be pressure related.

My advice. Make sure you know when it will and when it won't do it. When you speak to the dealer explain that you would like to demonstrate its behaviour. Mine was playing up but only when hot. Previous owner had explained it to the dealer over and over but when they took it in, the car was parked, and by the time anyone drove it, it was cool and did't play up. Every time they told them there was nothing wrong, it is "turbo lag".

When I called the same dealer, I was told that they "don't do demonstrations, you leave it with us and we will look after it". So I called another dealer, they said yep no worries, see you at 8. Foreman jumped in, about 2minutes later he said, seen enough. Car fixed that week...

[kaitan]

If it is only when it is started it may be pressure related.

My advice. Make sure you know when it will and when it won't do it. When you speak to the dealer explain that you would like to demonstrate its behaviour. Mine was playing up but only when hot. Previous owner had explained it to the dealer over and over but when they took it in, the car was parked, and by the time anyone drove it, it was cool and did't play up. Every time they told them there was nothing wrong, it is "turbo lag".

When I called the same dealer, I was told that they "don't do demonstrations, you leave it with us and we will look after it". So I called another dealer, they said yep no worries, see you at 8. Foreman jumped in, about 2minutes later he said, seen enough. Car fixed that week...

Thanks harlie...so at the end of the day what was the issue with yours?

[kaitan]

Just an update.

After switching the dtuk off,i realize that there is no more jerking from P to D only vibration which i believe its normal. the jerking only happens when its map 3.2+. I tried switching to map 2 and no jerking sign. Then now switch to map 3.1+ semms to be ok so far.

will update more when I have more details.

[harlie]

Well there’s another reason not to buy a plugin box. All you are doing with plugin boxes is modify the signal after the engine ECU has sent it’s commands or modifying the signal from a sensor to trick the ecu into tipping more fuel, boost or pressure in.

If it is affecting the transmission then there’s a sensor that is reading a parameter that’s significantly out of the normal.

If you want more go, get it remapped, the internal parameters work with the firmware instead of trying to trick it, you’re not dealing with a Toyota.... How many times do we see problems after one of these boxes is installed....

Sorry to be so blunt, but there is a better way, the boxes are cheaper because they are mass produced simple crap, the same electronic device is re-boxed with different looms and fitted to many many completely different vehicles - a remap takes the software your car is running and enhances it, your remap won't work in a subaru like the box does.