Jerky power delivery

UnluckySaxon · 08-10-2022, 03:51 AM

This has probably come up, but I couldn't find it. Car is a G20 330e

I'm expecting this issue to possibly be related to the traction control, but whats I'm experiencing is when I put the foot down, there is a really jerky delivery like on/off/on/off which is really crappy.

Any ideas what the issues is and how to resolve?

Thanks in adv

marksandygill · 08-10-2022, 04:01 AM

Quote:

Originally Posted by UnluckySaxon

This has probably come up, but I couldn't find it. Car is a G20 330e

I'm expecting this issue to possibly be related to the traction control, but whats I'm experiencing is when I put the foot down, there is a really jerky delivery like on/off/on/off which is really crappy.

Any ideas what the issues is and how to resolve?

Thanks in adv

If it's the traction control then you'll see the warning light on the dash?

But in the dry you shouldn't really be getting traction issues, even in xtraboost mode and flooring it...

paulockenden · 08-10-2022, 04:27 AM

Is it a new thing, or has the car always been like this?

Sounds like the throttle might need calibrating. Try this:

Push start/stop button without foot on the brake - don't start the car.
Press accelerator pedal all the way down for 5 seconds.
Press start/stop to turn off car.
Take your foot off of accelerator pedal.
Wait two minutes.
Start the car.

UnluckySaxon · 08-10-2022, 06:16 AM

Quote:

Originally Posted by paulockenden

Is it a new thing, or has the car always been like this?

Sounds like the throttle might need calibrating. Try this:

Push start/stop button without foot on the brake - don't start the car.
Press accelerator pedal all the way down for 5 seconds.
Press start/stop to turn off car.
Take your foot off of accelerator pedal.
Wait two minutes.
Start the car.

Nice!! I'll give this a try!

Yes, its always been this way and good point about the TC light

Osxboy · 08-10-2022, 08:41 AM

When I had a 330e, 70 plate, I never experienced this. It was smooth at take off even when flooring it so if the above doesn’t work you may need it checked.

bmnut · 08-10-2022, 08:44 AM

Quote:

Originally Posted by paulockenden

Is it a new thing, or has the car always been like this?

Sounds like the throttle might need calibrating. Try this:

Push start/stop button without foot on the brake - don't start the car.
Press accelerator pedal all the way down for 5 seconds.
Press start/stop to turn off car.
Take your foot off of accelerator pedal.
Wait two minutes.
Start the car.

Didn't know you could do that!

UnluckySaxon · 08-10-2022, 09:24 AM

Well, tried that and no idea if it worked as nothing came up or anything. Only that 'brake pedal down to start engine'...

UnluckySaxon · 08-30-2022, 08:15 AM

Definitely didn't work. Still having on/off delivery with the foot down some of the time

UnluckySaxon · 08-10-2023, 08:36 AM

So 'unbelievably' Sytner Harold Wood didnt connect up their ODB as they said they had when the car was in with them in 2021, so I had an independent mechanic do so during an MOT and low and behold I have a Valvetronic open circuit fault.

I'm now in hassling BMW UK as this should've been discovered whilst the vehicle was in warranty, so lets see...

Surge_Joebot · 08-11-2023, 07:52 AM

Quote:

Originally Posted by UnluckySaxon

So 'unbelievably' Sytner Harold Wood didnt connect up their ODB as they said they had when the car was in with them in 2021, so I had an independent mechanic do so during an MOT and low and behold I have a Valvetronic open circuit fault.

I'm now in hassling BMW UK as this should've been discovered whilst the vehicle was in warranty, so lets see...

Yeah I was gonna say from your OP it sounds like there is something more wrong than just calibration/traction.

Just FYI those calibration steps given earlier in the thread do not work with a 330e. Think it's only petrol/diesel models. Not sure what it is for the hybrid or even if it's a thing anymore. May be just older models.

UnluckySaxon · 08-25-2023, 10:00 AM

Has anyone actually got a BMW UK email address that is responded to?
I've had nothing back

UnluckySaxon · 09-25-2023, 05:28 AM

So they did respond and Sytner HW did make contact asking me to come in.

So they plugged in the OBD and bizarrely couldnt find any fault pertaining to valvetronics. I also couldnt replicate the jerky delivery either, so I'm well confused.

One of the service managers did try and suggest that a jerky power delivery was indicative of 'e' models, but I refuse to believe that an on off throttle response is what BMW would allow off their assembly and said as much.

Either way I hopefully will be getting a resolution for my iDrive update and the lack of DAB radio thats subsequently plagued me recently.

Sytner did get me a cab to work which is definitely good service, so fair play them.

08-10-2022, 03:51 AM	#1
UnluckySaxon Private First Class 63 Rep 190 Posts Drives: BMW 330e G20 Join Date: Aug 2020 Location: London iTrader: (0)	Jerky power delivery This has probably come up, but I couldn't find it. Car is a G20 330e I'm expecting this issue to possibly be related to the traction control, but whats I'm experiencing is when I put the foot down, there is a really jerky delivery like on/off/on/off which is really crappy. Any ideas what the issues is and how to resolve? Thanks in adv
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08-10-2022, 04:27 AM	#3
paulockenden Major 584 Rep 1,231 Posts Drives: 330e xDrive Touring Join Date: Oct 2020 Location: South Coast iTrader: (0)	Is it a new thing, or has the car always been like this? Sounds like the throttle might need calibrating. Try this: Push start/stop button without foot on the brake - don't start the car. Press accelerator pedal all the way down for 5 seconds. Press start/stop to turn off car. Take your foot off of accelerator pedal. Wait two minutes. Start the car.
	Appreciate 3 P-ToK72346.50 UnluckySaxon63.00 Seaford1157.50 Quote

08-10-2022, 08:41 AM	#5
Osxboy Second Lieutenant 56 Rep 256 Posts Drives: G21 320d Join Date: Dec 2019 Location: Winchester iTrader: (0)	When I had a 330e, 70 plate, I never experienced this. It was smooth at take off even when flooring it so if the above doesn’t work you may need it checked.
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08-10-2022, 09:24 AM	#7
UnluckySaxon Private First Class 63 Rep 190 Posts Drives: BMW 330e G20 Join Date: Aug 2020 Location: London iTrader: (0)	Well, tried that and no idea if it worked as nothing came up or anything. Only that 'brake pedal down to start engine'...
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08-30-2022, 08:15 AM	#8
UnluckySaxon Private First Class 63 Rep 190 Posts Drives: BMW 330e G20 Join Date: Aug 2020 Location: London iTrader: (0)	Definitely didn't work. Still having on/off delivery with the foot down some of the time
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08-10-2023, 08:36 AM	#9
UnluckySaxon Private First Class 63 Rep 190 Posts Drives: BMW 330e G20 Join Date: Aug 2020 Location: London iTrader: (0)	So 'unbelievably' Sytner Harold Wood didnt connect up their ODB as they said they had when the car was in with them in 2021, so I had an independent mechanic do so during an MOT and low and behold I have a Valvetronic open circuit fault. I'm now in hassling BMW UK as this should've been discovered whilst the vehicle was in warranty, so lets see...
	Appreciate 0 Quote

08-25-2023, 10:00 AM	#11
UnluckySaxon Private First Class 63 Rep 190 Posts Drives: BMW 330e G20 Join Date: Aug 2020 Location: London iTrader: (0)	Has anyone actually got a BMW UK email address that is responded to? I've had nothing back
	Appreciate 0 Quote

09-25-2023, 05:28 AM	#12
UnluckySaxon Private First Class 63 Rep 190 Posts Drives: BMW 330e G20 Join Date: Aug 2020 Location: London iTrader: (0)	So they did respond and Sytner HW did make contact asking me to come in. So they plugged in the OBD and bizarrely couldnt find any fault pertaining to valvetronics. I also couldnt replicate the jerky delivery either, so I'm well confused. One of the service managers did try and suggest that a jerky power delivery was indicative of 'e' models, but I refuse to believe that an on off throttle response is what BMW would allow off their assembly and said as much. Either way I hopefully will be getting a resolution for my iDrive update and the lack of DAB radio thats subsequently plagued me recently. Sytner did get me a cab to work which is definitely good service, so fair play them.
	Appreciate 0 Quote