t**x
发帖数: 20965 | 1 3万买的旧车 2011年528i
三天了，经历了突然加速和空转加不上速度。查了，发现很多owner都有这个问题。到
目前问题3年了，还没有recall。
看来lexus的公关比bmw连渣都不如。
http://www.bimmerforums.com/forum/showthread.php?1697732-The-Of
2011 BMW 528i: It's Not Just Me!
2011 BMW 528i: Delivering the Power
Tip-in, jerk, hesitation, operating as designed?
What BMW Owners Are Saying
Highlighted comments from various places about this issue (some editing for
spelling and grammar):
I was experiencing the same as many others where if you are at a complete
stop and you go to accelerate the car doesn't respond right away and you
naturally apply more gas and then the car jumps ahead of you. If you were to
move to the D/S position, the car was perfect and you didn't experience any
lag in acceleration... it was almost like the car was set to start off in
2nd gear vs 1st.
Don't know how to explain it....seems pedal has to be pressed more than it
should before getting an immediate throttle response. Like a small dead spot
, I suppose. Only in normal mode. No lag in sport mode. Response is
immediate.
It has scared me a few times when pulling out from a stop sign into traffic,
thinking you have plenty of time and ease onto the accelerator only to find
yourself moving like a snail, then having to stomp on it to get moving as
traffic nears.
It's not the engine's response I am worried about. It's the ability to drive
smoothly. I cannot, and neither can my wife, get this car to pull away from
either a dead stop or a slight rolling stop smoothly and with consistent
speed, more than 20% of the time.
You have three options normally for takeoff in this car: you have to feather
the throttle and creep away like a cat burglar; tromp on it and leave like
Don Garlits; or use normal throttle input, have nothing happen for 2 seconds
, and then feel like a garbage truck just rear ended you.
I have a 2009 528i w/ Sport Package. My 5th BMW. They gave me a loaner 2011
528i for my last service and I still can't get over how differently they
drove. The 2011 felt bigger but not just that the throttle tip in was much
more agressive and combined with the loose electric steering it was very
disappointing.
If this car was being used for a limo service, the driver would have no
repeat customers. If your kids take their driver's exam in this car, they'll
fail. It really is that bad.
I noticed this with an F10 528 loaner. That throttle lag is not fun,
especially if you need to get out of a situation.
It's not a delay which decreases a transient surge. It INCREASES the
transient surge as the car does not respond to the throttle for a half
second then bolts forward with an awkward lurch and a slam. It's much
rougher than a normal takeoff would be. It's not at all smooth. Some have
described it as being rear-ended.
For the sake of clear discussion, let's not call it lag. Let's call it a "
lack of a linear response to the throttle pedal".
I can't figure for the life of me why BMW would design it this way
intentionally. It just makes the car hard to drive smoothly from a standing
start. It's stupid. It's not the end of the world but it is stupid.
I have demonstrated to my tech that I get a 2 second lag when stepping on it
as I coast down to 20mph. He readily agreed that it was an issue. My
approach is that it is a safety issue (which it seriously is) and I have
been presenting it this way.
Edmunds Inside Line has noted the same issue with their long term 528 as
well. Its not the turbo, its the throttle and transmission programming. Its
not related to actual engine power at all.
I was dumbfounded as I wanted to accelerate smoothly (half way floored gas
pedal) from about 35mph to notice that bothersome delay and the sudden surge
as the car shifted down one or two gears.
My wife has been driving my car a lot lately to keep the miles down. She
would agree with this, the lack of a linear response makes her nervous. She
commented the other day that she has to wait for a much bigger opening.
I have a Honda that is also "drive by wire", and the throttle response of
that car is instant and consistent throughout its entire pedal travel, not
at all like the laziness of the BMW.
I was at the dealership yesterday and asked my SA about it. She stated that
they have seen the issue with the 528i and seemed to admit there is a
problem with that model.
I simply blamed too many gears in the transmission! Was I wrong? I don't
know... because the salesman then told me to try the manual sport mode and
the hesitation promptly went away!
Whether or not this is considered technically a safety delay, I do agree
that there is one on the F10, and was one on my prior E39...but not as
pronounced. That being said, I would hope you all realize that there is at
least one aftermarket BMW supplier out there that makes an electronic
harness specifically made to delete this delay. I have not looked yet, but
would imagine they are working on an F10 solution as well, if not already
having it.
I was yielding at an intersection to make a left turn, and in ANY of the
cars I've previously owned (BMWs, Audis, Jeeps) I would have stepped on it
and cleared the intersection with ease. With the F10, I waited for oncoming
cars to pass to be on the safe side. Not cool.
Toyota was forced to do a massive recall because of unintended acceleration
that probably was caused by floor mats or something inane like that, not the
vehicle electronics. Here, we have a similar problem affecting acceleration
, apparently caused by a shortcoming in the drive by wire throttle software,
and there's no acknowledgement that a problem exists. What would be
required to get the exposure needed for a recall? Is this problem
potentially dangerous or is it just annoying?
My issue is what happens when someone uses the car that either has never
driven it before or drives it infrequently and is used to instant
acceleration when stepping on the throttle?
In my judgement, If I look in my mirror and decide that it would be in my
best interest to make more space between whatever I see and myself - and
command my 300HP vehicle to get a move on by stepping deeply into my peddle
- and it doesn't respond for 2 seconds (50 feet of unwanted closure at only
35mph vehicle-to-vehicle speed difference), I'd call that dangerous. Wouldn'
t you? I think BMW would agree. Now let's hope they can fix it.
I guess it will take a few accidents, deaths and a lot of bad publicity to
get something done on this.
This needs to be recalled. It's a big safety issue. | t**x
发帖数: 20965 | | w****2
发帖数: 936 | | t**x
发帖数: 20965 | 4 啥意思，， 这个新车很多都有这个问题。bmw 2011，我只不过没有听说过， 只知道
lexus加速。 看bmw，只看可靠性， 据说这个评价还不错，就买了。。。 结果才发现
。。。
给些具体帮助，， 不到三天能退吗？
BMW does not officially acknowledge this issue, and THEY are the one's who
play dumb, but this is indeed a major SAFETY issue as outlined in Sonnie's
initial post. I had EXACTLY that experience: in traffic, cruising along,
need to switch lanes, look in side view and have ample room/time to do so,
hit the gas pedal and go NOWHERE. the only BMW dealer i know of, that has
actually come out and addressed this openly, is in NC (i spoke to them
directly because my dealership in FL are really dumb, or just good at
playing dumb). i believe through a software update they are addressing tip
in issue, but the car can revert back for different reasons and the issue
resurfaces. unbelievable that a company of this caliber, would make a car
for this price, have a major safety concern such as this... and NO ONE is
doing anything about it. I walked into the dealer with paperwork from all
kinds of threads on this issue, and NOTHING. class action law suit is what's
necessary to get them to take notice... whose in? $60K+ for this car, paid
in full the day i bought it, and it hesitates and is downright sluggish at
times? and, it has everything to do with the fuel consumption mechanism and
what they did to make it legit get 23+ mpg by conserving at lower speeds.. I
AM CERTAIN OF IT. its the first BMW i'm ever owned and needless to say, i'm
astounded on every level, about this problem.
【在 w****2 的大作中提到】
: 这人找死谁都挡不住啊
| t**x
发帖数: 20965 | 5 I'm surprised that this issue still exists in your 2013. I thought only the
early batches have the problem.
【在 w****2 的大作中提到】
: 这人找死谁都挡不住啊
| k*******q
发帖数: 5493 | 6 先把你的引擎空气滤芯换成 K&N 牌的，很大程度上可以改善油门响应，原来我也经历
过一阵子半坡启动，油门踩少了车不动踩大了车子往前蹿的问题，换了空滤之后油门和
车子的反应好了很多，50多的空气滤芯很值得
for
【在 t**x 的大作中提到】
: 3万买的旧车 2011年528i
: 三天了，经历了突然加速和空转加不上速度。查了，发现很多owner都有这个问题。到
: 目前问题3年了，还没有recall。
: 看来lexus的公关比bmw连渣都不如。
: http://www.bimmerforums.com/forum/showthread.php?1697732-The-Of
: 2011 BMW 528i: It's Not Just Me!
: 2011 BMW 528i: Delivering the Power
: Tip-in, jerk, hesitation, operating as designed?
: What BMW Owners Are Saying
: Highlighted comments from various places about this issue (some editing for
| t**x
发帖数: 20965 | 7 我买的是2011旧的。
the
【在 t**x 的大作中提到】
: I'm surprised that this issue still exists in your 2013. I thought only the
: early batches have the problem.
| t**x
发帖数: 20965 | 8 谢谢，
需要升级软件吗
【在 k*******q 的大作中提到】
: 先把你的引擎空气滤芯换成 K&N 牌的，很大程度上可以改善油门响应，原来我也经历
: 过一阵子半坡启动，油门踩少了车不动踩大了车子往前蹿的问题，换了空滤之后油门和
: 车子的反应好了很多，50多的空气滤芯很值得
:
: for
| e**n
发帖数: 1326 | 9 去dealer升软件吧先，应该会有改善。不过我14款的tip in也不是很consistent,有时
候响应很快有时候没反应，低速的时候尤其难开。不好。
【在 t**x 的大作中提到】
: 谢谢，
: 需要升级软件吗
|
|
