"Slap in the back of the head" take off issues.

[BCK]

Should the engine restart once it senses you ease off the brake? So, you take your right foot off the brake and apply it to the throttle and you get a lurch?

Foot off brake

car starts

foot transitions to throttle - no clutches engaging

foot depresses accelerator pedal 5-10%

clutches still not engaging for a few seconds (this is a hint its about to happen - as usually it'll start engaging the clutchs into a "creep" mode after a second.

Clutches engage violently and throw the car forward - no change in throttle input - car then continues moving relative to initial throttle input.

So its not like the ecu is picking up a quick and large accelerator input and trying to get away in a hurry, it just lurches, and then slowly crawls away at the speed id expect in relation to the throttle input i have given.

The next few times it does it (start/stop activation), its flawless! And moves away from rest gently, just fine.

But then again, out of nowhere, itll bite the clutches hard and spear me forward with startling force once again.

[BCK]

Easier just to keep foot on brake and then ease it off to let engine start as lights change and then it pulls away normally.

Maybe the mk7 is different in operation as if I hold the brake on hard the engine stays off Have to lift foot for it to restart

Nope. If your foot is on the brake and you lift it a small amount, my MK7 restarts.

But you dont need to lift off all the way for this to happen.

[Guest001]

Nope. If your foot is on the brake and you lift it a small amount, my MK7 restarts.

But you dont need to lift off all the way for this to happen.

Thats exactly what mine does so to get off the mark this is what I do.

If at the lights, watch them,

Lift foot slightly off the brake,,
Engine starts, wait for lights..
Lift foot off brake pedal, wait the few milliseconds for car to start to roll,
Hit the loud pedal as required. Gently for a start, Get it rolling and then hit it up a bit.

Same for in traffic, but never let it sit on the clutches as you would in a slush box.

[BCK]

Yeah, that's what i try to do but a lot of the roads im on are 2-way, or simple stop-start traffic - so i dont have the luxury of traffic foresight.

Most of the time i cant preempt what triaffic is doing ahead, therefore i wait for traffic to properly get moving before coming off the brake. Otherwise you're essentially riding clutches.

[Guest001]

Yeah, that's what i try to do but a lot of the roads im on are 2-way, or simple stop-start traffic - so i dont have the luxury of traffic foresight.

Most of the time i cant preempt what triaffic is doing ahead, therefore i wait for traffic to properly get moving before coming off the brake. Otherwise you're essentially riding clutches.

If you lift off the brake far enough to start the engine but keep the car still I dont think the clutches engage till your foot comes right off

[Melts75]

My wife and I both are both in the habit of first starting the Passat then reaching for the Auto Stop/Start button shortly after, To turn it off!! It's the most annoying system, and the pissy amount of fuel your going to save is not going to cover the cost of premature wear of the turbo from oil deprivation.
The Auto hold I found useful on my 09 Tiguan manual, but in an Auto?? I think it's been turned off for about two years now!!
Combine the two and try a tight reverse park )


2011 B7 Passat TDI highline wagon. I tinted the windows [emoji106][emoji106]

[BCK]

True, but my issue is creeping with traffic.

[Guest001]

Heres what your problem is.

Unless you put it into 1st manually it sits in 2nd Well does in the Polo anyway The hesitation you are getting is it dropping into 1st when you mash the throttle Just let it roll a bit then apply power gently. Look at your MFD and see what gear its in when you stop.

Neither of mine do what you say.

Driver differences I guess You should never let it creep in traffic as it will burn the clutches

[BCK]

Mine drops to first in my Golf R-line (7 Speed).

Waiting for it to engage and start creeping after releasing the brake can sometimes cause a looooooong pause before it actually engages anything.

On quiet nights, or in a carpark, you can hear the mechatronics working and selecting 1st/2nd. My Golf selects first at a stop and also shows this on the MFD, then at approx 5kph will slip the clutches into second and keep slipping them until road speed speed is sufficient enough to allow complete engagement of 2nd gear above 1,200rpm or so.

So while your theory may apply to your Polo, the Golf obviously operates differently.

Besides, if you read some previous responses (mine being one of them), you would see that mashing the throttle is not what we are doing. The main cause is the stop-start and the following transition off of brake to throttle. Not lightning quick jumps from one to the other.

[dening]

Heres what your problem is.

Unless you put it into 1st manually it sits in 2nd Well does in the Polo anyway The hesitation you are getting is it dropping into 1st when you mash the throttle Just let it roll a bit then apply power gently. Look at your MFD and see what gear its in when you stop.

Neither of mine do what you say.

Driver differences I guess You should never let it creep in traffic as it will burn the clutches

My 6r gti Polo was way different to my current golf gti. It's not really something with technique.

I have a loaned tiguan at the moment from vw (brand new highline diesel) and it doesn't behave like the gti. Even with stop start it doesn't jump if you slightly hurry it like the golf does.

[lambertia]

Had my car in for service today and mentioned the issue. The fellow said he has complained about the same thing in his mk7. This is a known issue and there is not currently a fix.

[zardoz]

I see this with stop start irrespective of whether ACC is activated. 103TSI highline. I find that if I hit the accelerator more fiercely when starting again, I'll get a very sudden jump on takeoff.

[GolfVII]

Found this
stemei.de .VCDS Codierungen .Codierungsservice .Webdesign - Stefan Meier - Anfahrassistent - VCDS Codierungen, Webdesign

You will need to translate it.

Quote:
In the control unit of the electronic brake system gives you the option of the VW Golf 7 and verbautem automatic transmission (S-Tronic) adapt the dynamic start-off. The approach can thus be changed accordingly. Since when shipped to the dynamic start assist with the setting normally relatively late releases the brake is always a strong jerk felt, which causes an overall poor starting performance of the vehicle. If you change the setting to keep the early (and hence the brake intervention) of the Start-minimized and thus you feel no annoying and can hold more - as it should - start smoothly.

[mike90tsi]

My trip into work is 7.7Km long, I have a Golf Mk7 90TSI base, I use the start/stop and in the hilly bits I turn on the auto hold, in the mornings I get between 43 and 55 start/stop events on the way to work (yep, I counted for a week). Never once have I had what the OP is describing.

[skong]

Mk7 103Tsi - I had on occasion felt the car jerk as described. Now I give it a few seconds for the engine to come close to idle after each start/stop event before easing on the accelerator. No more jerking; but it does take a little patience. It seems to me from what I have read here that some of the cars here takes longer than others engage the drive train.