Bmw 435i test drive experience
Discussion
So I test drove a brand new 435i m-sport with 3 miles on the clock. Was a nice car for sure with a decent turn of pace however....
It was an auto, had it in sport mode straight away as it felt like it would take a second to react to the accelerator when pressed.
Sport mode didn't change this, it felt like when you pressed the throttle it took a second to make up its mind before it decided to go. Not turbo lag, had a laggy cherry turbo and it wasn't similar, it would do it in traffic when already in gear so wasn't the autobox.
Is this because its a auto? My old l322 td6 doesn't do it even though its an auto.
It was an auto, had it in sport mode straight away as it felt like it would take a second to react to the accelerator when pressed.
Sport mode didn't change this, it felt like when you pressed the throttle it took a second to make up its mind before it decided to go. Not turbo lag, had a laggy cherry turbo and it wasn't similar, it would do it in traffic when already in gear so wasn't the autobox.
Is this because its a auto? My old l322 td6 doesn't do it even though its an auto.
Rob put the hammer down in a BMW in about 2012 and is still waiting for the engine to respond. He has a stopwatch on it (but the stopwatch has run out of digits to display the time elapsed).
He will be along soon to explain how throttle delay makes almost all modern cars impossible to use on public roads (because he takes every corner at just below the limits of grip and needs instant throttle response to balance the car on power). The throttle delay puts him in a hedge 9/10 times and has killed him at least twice.
The worst part is that this throttle delay applies also to NA petrol cars with what is usually described as excellent throttle response. Rob is still waiting for a Cayman to respond to a blipped throttle from about 2010.
He will also explain, and we will all agree, that the only way to avoid this problem is to get a turbocharged diesel saloon.
I know. I know. It sounds bonkers. But Rob will explain it all. You'll be in a 4 cyl turbodiesel in no time and living the motoring dream.
(I like and respect you, Rob, so take this in the spirit it is meant, you nobber!
)
He will be along soon to explain how throttle delay makes almost all modern cars impossible to use on public roads (because he takes every corner at just below the limits of grip and needs instant throttle response to balance the car on power). The throttle delay puts him in a hedge 9/10 times and has killed him at least twice.
The worst part is that this throttle delay applies also to NA petrol cars with what is usually described as excellent throttle response. Rob is still waiting for a Cayman to respond to a blipped throttle from about 2010.
He will also explain, and we will all agree, that the only way to avoid this problem is to get a turbocharged diesel saloon.
I know. I know. It sounds bonkers. But Rob will explain it all. You'll be in a 4 cyl turbodiesel in no time and living the motoring dream.
(I like and respect you, Rob, so take this in the spirit it is meant, you nobber!
)
fatboy b said:
Have a drive of a Jag XF-S in dynamic. Probably too far the other way. Extremely quick change, but can be jerky, and definately not something you'd want to try in the wet!
The XFR-S is similar. A little bit too aggressive for my tastes - but my first high performance car was my Cerbera and the long, linear accelerator pedal on that is ideal for me and obviously what I got used to.I tried to demonstrate to a female friend a short while back why her 1-series was a more fun car than her recently deceased S3 on a quiet, damp roundabout. At a sensible speed I said "watch this" and started squeezing some power on - and absolutely NOTHING happened. Probably more embarrassing than spinning the bloody thing would have been.
jamieduff1981 said:
The XFR-S is similar. A little bit too aggressive for my tastes
That's not an issue of response time though; it's the map of throttle pedal position onto throttle butterfly position. 10% pedal travel seems to give you around 50% throttle opening. There's nothing wrong with a throttle responding instantly as long as the mapping is sensible. kambites said:
jamieduff1981 said:
The XFR-S is similar. A little bit too aggressive for my tastes
That's not an issue of response time though; it's the map of throttle pedal position onto throttle butterfly position. 10% pedal travel seems to give you around 50% throttle opening. There's nothing wrong with a throttle responding instantly as long as the mapping is sensible. I certainly found the 120d (manual) to be slow to react to my accelerator pedal inputs.
Is this delayed/slowed throttle opening thing on present-day BMW petrols engines an emissions control measure?
The throttle delay in very recent BMWs is certainly pretty horrific in my experience (335i, 320i, 328i. Blip...wait...rev flare.
The Cayman S video was pretty clear, wasnt it? I never experienced it in 2 years of driving one (about 18k miles), but I think that's because I know how to drive an NA petrol car and wouldnt be dropping the hammer in 4th gear at 30mph!
The Cayman S video was pretty clear, wasnt it? I never experienced it in 2 years of driving one (about 18k miles), but I think that's because I know how to drive an NA petrol car and wouldnt be dropping the hammer in 4th gear at 30mph!
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