Acceleration lag in comfort

Animal7 · 10-23-2021, 12:28 PM

So I've noticed this a bit over the 3 years I've had the car, however it seems to have got more noticable recently. Whilst in comfort from stationary, there appears to be a slight lag from putting my foot down to the engine picking up. Switch into sport mode and no such problem. Car is a 2016 335d F31 with 56k on the clock. Does the gearbox need a service/oil change or something else. Thoughts?

MY340i · 10-23-2021, 01:54 PM

Could be a whole host of things, have a look at throttle adaption too

unsayf · 10-23-2021, 02:47 PM

Have the same issue. 320d F30 with 40k miles. Normally occurs from cold start and seems to go away when the engine is warmed up a bit.

Fizzy Duck · 10-23-2021, 03:56 PM

Isn’t this just intended behaviour of comfort? It’s been the same in every BMW I’ve driven

DaveA · 10-23-2021, 04:15 PM

I think the general consensus when these sorts of things have been discussed in the past is that "that's how they all are, sir"...

I find the cars these days far easier to drive if you use more economical foot movements and let the turbo come in to push you along... There used to be common complaint from folk coasting up to roundabouts then kicking down to get into the roundabout and getting nothing of what they expected... it's like you would have been ,more likely to do in a normally aspirated car...

I suspect they are mapped economically in both eco and comfort these days to encourage a more eco friendly driving style...

johnung · 10-23-2021, 07:29 PM

Quote:

Originally Posted by Animal7

So I've noticed this a bit over the 3 years I've had the car, however it seems to have got more noticable recently. Whilst in comfort from stationary, there appears to be a slight lag from putting my foot down to the engine picking up. Switch into sport mode and no such problem. Car is a 2016 335d F31 with 56k on the clock. Does the gearbox need a service/oil change or something else. Thoughts?

You are describing the normal gas pedal tuning in comfort mode. That's why the pedal seems more responsive in Sport mode, because it's programmed to be

cramsnik · 10-24-2021, 05:27 AM

Try an Audi with a DQ200 box, that'll redefine the word 'lag'.

bishbosh · 10-24-2021, 08:15 AM

Quote:

Originally Posted by cramsnik

Try an Audi with a DQ200 box, that'll redefine the word 'lag'.

My brother's VW up had the ASG gearbox which was frankly dangerous. Put your foot down in that and you could make a cuppa in the time it took to wake up!

cramsnik · 10-24-2021, 01:27 PM

Quote:

Originally Posted by bishbosh

My brother's VW up had the ASG gearbox which was frankly dangerous. Put your foot down in that and you could make a cuppa in the time it took to wake up!

Can well believe it!

archerz · 10-24-2021, 02:38 PM

Quote:

Originally Posted by unsayf

Have the same issue. 320d F30 with 40k miles. Normally occurs from cold start and seems to go away when the engine is warmed up a bit.

it's purposly slipping the clutch when cold to warm up the gearbox quicker if i remember correctly.

10-23-2021, 12:28 PM	#1
Animal7 Enlisted Member 9 Rep 32 Posts Drives: 335d Touring Join Date: Jul 2019 Location: Surrey iTrader: (0)	Acceleration lag in comfort So I've noticed this a bit over the 3 years I've had the car, however it seems to have got more noticable recently. Whilst in comfort from stationary, there appears to be a slight lag from putting my foot down to the engine picking up. Switch into sport mode and no such problem. Car is a 2016 335d F31 with 56k on the clock. Does the gearbox need a service/oil change or something else. Thoughts?
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10-23-2021, 01:54 PM	#2
MY340i Major 720 Rep 1,444 Posts Drives: Various Join Date: Feb 2020 Location: London iTrader: (0)	Could be a whole host of things, have a look at throttle adaption too
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10-23-2021, 02:47 PM	#3
unsayf New Member 3 Rep 5 Posts Drives: BMW 320d XDrive Step Auto Join Date: Oct 2021 Location: Derbyshire iTrader: (0)	Have the same issue. 320d F30 with 40k miles. Normally occurs from cold start and seems to go away when the engine is warmed up a bit.
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10-23-2021, 03:56 PM	#4
Fizzy Duck Enlisted Member 15 Rep 34 Posts Drives: E88 135i Join Date: Aug 2021 Location: West Sussex, UK iTrader: (0)	Isn’t this just intended behaviour of comfort? It’s been the same in every BMW I’ve driven
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10-23-2021, 04:15 PM	#5
DaveA Brigadier General 1872 Rep 3,432 Posts Drives: BMW M135i xDrive Join Date: May 2013 Location: Teesside iTrader: (0)	I think the general consensus when these sorts of things have been discussed in the past is that "that's how they all are, sir"... I find the cars these days far easier to drive if you use more economical foot movements and let the turbo come in to push you along... There used to be common complaint from folk coasting up to roundabouts then kicking down to get into the roundabout and getting nothing of what they expected... it's like you would have been ,more likely to do in a normally aspirated car... I suspect they are mapped economically in both eco and comfort these days to encourage a more eco friendly driving style... __________________ CAR HISTORY - Golf GTI 245 - F30 340i M Sport - F30 330d M Sport MPPK - F30 320d Sport - 997 Gen2 GT3 - 987 Cayman S - 986 Boxster S - Ibiza Cupra - Polo 16v - E30 M3 (Official GB import) - Integra 16v - Mk2 Polo S - Mk1 Golf C
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10-24-2021, 05:27 AM	#7
cramsnik Crustacean denier 389 Rep 578 Posts Drives: M3LR Join Date: Sep 2020 Location: Northants iTrader: (0)	Try an Audi with a DQ200 box, that'll redefine the word 'lag'.
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