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Fast idling - consequences?   
I just had a routine 'Inspection' service done by my local garage on
my N-reg BMW 328 SE. In addition they replaced a broken air hose
somewhere which had suddenly started causing stalling. But now I have
two faults:
- Idling is now a bit too fast, about 700/750 rpm instead of 500/600
- When stopping/starting in traffic, I can no longer break to a truly
smooth halt. At the very last moment, there's a 'grab'.

I'm no auto expert, but I'm wondering whether in fact the fast idling
could also be the cause of the grabbing effect?

Unlike previous cars, I could see no means of adjusting the idling
speed. Is it 'computer-controlled'? If so, what is involved in
adjusting it please?

-- 
Terry, West Sussex, UK
Date:Mon, 11 Jul 2005 07:31:00 +0100   Author:  

Re: Fast idling - consequences?   
"Terry Pinnell"  wrote in message
news:vt34d1pk2l89m4ivosp8062ga1b2ue5nkl@4ax.com...

> I just had a routine 'Inspection' service done by my local garage on
> my N-reg BMW 328 SE. In addition they replaced a broken air hose
> somewhere which had suddenly started causing stalling. But now I have
> two faults:
> - Idling is now a bit too fast, about 700/750 rpm instead of 500/600



700-750 is the correct idle speed. 5-600 is too slow.

Tim..
Date:Mon, 11 Jul 2005 07:11:22 +0000 (UTC)   Author:  

Re: Fast idling - consequences?   
"Terry Pinnell"  wrote in message 
news:vt34d1pk2l89m4ivosp8062ga1b2ue5nkl@4ax.com...

>I just had a routine 'Inspection' service done by my local garage on
> my N-reg BMW 328 SE. In addition they replaced a broken air hose
> somewhere which had suddenly started causing stalling. But now I have
> two faults:
> - Idling is now a bit too fast, about 700/750 rpm instead of 500/600
> - When stopping/starting in traffic, I can no longer break to a truly
> smooth halt. At the very last moment, there's a 'grab'.
>
> I'm no auto expert, but I'm wondering whether in fact the fast idling
> could also be the cause of the grabbing effect?
>
> Unlike previous cars, I could see no means of adjusting the idling
> speed. Is it 'computer-controlled'? If so, what is involved in
> adjusting it please?


Idle on these is not adjustable
Date:Mon, 11 Jul 2005 07:26:15 GMT   Author:  

Re: Fast idling - consequences?   
"mrcheerful
.."  wrote:


>
>"Terry Pinnell"  wrote in message 
>news:vt34d1pk2l89m4ivosp8062ga1b2ue5nkl@4ax.com...
>>I just had a routine 'Inspection' service done by my local garage on
>> my N-reg BMW 328 SE. In addition they replaced a broken air hose
>> somewhere which had suddenly started causing stalling. But now I have
>> two faults:
>> - Idling is now a bit too fast, about 700/750 rpm instead of 500/600
>> - When stopping/starting in traffic, I can no longer break to a truly
>> smooth halt. At the very last moment, there's a 'grab'.
>>
>> I'm no auto expert, but I'm wondering whether in fact the fast idling
>> could also be the cause of the grabbing effect?
>>
>> Unlike previous cars, I could see no means of adjusting the idling
>> speed. Is it 'computer-controlled'? If so, what is involved in
>> adjusting it please?
>
>Idle on these is not adjustable 
>


OK, thanks both. Any thoughts on the slight 'grabbing' please? My
speculation was that, if the idle speed was a bit too fast, on
releasing the accelerator and pressing the brake (this is an auto
model), the brakes might have to be more forceful than previously,
preventing the very smooth stop I've been used to.

-- 
Terry, West Sussex, UK
Date:Mon, 11 Jul 2005 10:08:49 +0100   Author:  

Re: Fast idling - consequences?   
"Terry Pinnell"  wrote in message 
news:hid4d1humnkapj624t29en9nm3eji0j3c8@4ax.com...

> "mrcheerful
> ."  wrote:
>
>>
>>"Terry Pinnell"  wrote in message
>>news:vt34d1pk2l89m4ivosp8062ga1b2ue5nkl@4ax.com...
>>>I just had a routine 'Inspection' service done by my local garage on
>>> my N-reg BMW 328 SE. In addition they replaced a broken air hose
>>> somewhere which had suddenly started causing stalling. But now I have
>>> two faults:
>>> - Idling is now a bit too fast, about 700/750 rpm instead of 500/600
>>> - When stopping/starting in traffic, I can no longer break to a truly
>>> smooth halt. At the very last moment, there's a 'grab'.
>>>
>>> I'm no auto expert, but I'm wondering whether in fact the fast idling
>>> could also be the cause of the grabbing effect?
>>>
>>> Unlike previous cars, I could see no means of adjusting the idling
>>> speed. Is it 'computer-controlled'? If so, what is involved in
>>> adjusting it please?
>>
>>Idle on these is not adjustable
>>
>
> OK, thanks both. Any thoughts on the slight 'grabbing' please? My
> speculation was that, if the idle speed was a bit too fast, on
> releasing the accelerator and pressing the brake (this is an auto
> model), the brakes might have to be more forceful than previously,
> preventing the very smooth stop I've been used to.
>


it may well be that the previous, incorrect idle, suited you and the car 
better.  A few days with the new speed and you will get used to it.
Date:Mon, 11 Jul 2005 09:49:13 GMT   Author:  

Re: Fast idling - consequences?   
"mrcheerful ."  wrote in message 
news:tgrAe.67322$G8.30781@text.news.blueyonder.co.uk...


> it may well be that the previous, incorrect idle, suited you and the car 
> better.  A few days with the new speed and you will get used to it.


I have a friend who once claim that he preferred having his old slippy 
clutch because it was 'harder to stall'.

15mph in 2nd gear @ 5500rpm and a strong smell seemed a small price to pay 
for a nice high biting point...

Ta,
G.
Date:Mon, 11 Jul 2005 10:17:36 GMT   Author:  

Re: Fast idling - consequences?   
In article ,
   Terry Pinnell  wrote:

> - Idling is now a bit too fast, about 700/750 rpm instead of 500/600
> - When stopping/starting in traffic, I can no longer break to a truly
> smooth halt. At the very last moment, there's a 'grab'.

> I'm no auto expert, but I'm wondering whether in fact the fast idling
> could also be the cause of the grabbing effect?


Is this the roll out change to first gear? If so, sounds like the idle
sensor is out of adjustment - on my 528 if you come to a halt with your
foor still on the throttle even slightly - by left foot braking - you'll
get a thump into first.

Try pulling the throttle *up* with your foot and see if this makes a
difference. It might just be cable adjustment - if indeed it has a cable.

-- 
*Remember not to forget that which you do not need to know.*

    Dave Plowman        dave@davenoise.co.uk           London SW
                  To e-mail, change noise into sound.
Date:Mon, 11 Jul 2005 11:23:31 +0100   Author: