Hesitation sometimes

**Mark CSL** · 11-10-2012, 08:18 PM

I had a hesitation sometimes pulling out junctions or when cold
It was in at bmw time and time again still no joy all the tests said it was all ok

Then when i started it last week the engine light was on took it to BMW
and they replaced the throttle sensor on the end of the throttle linkage
its like a new car better when cold and feels like the sport is on when its not
its night and day

If you have this try this for a fix here is a picture its the part just above the oil filter housing with the 2 screws

**shimmy** · 11-10-2012, 08:35 PM

Good info Mark.........glad BMW did that coz you'd never get yer hands in there

bryce · 11-10-2012, 08:37 PM

Ive never noticed hesitation like you describe Mark but what I have noticed is when I punch the throttle from idle the car almost 'splutters' for a split second before revving. If I hold the revs higher - say 1.5k - and punch the throttle it responds well..

Bounce · 11-10-2012, 08:46 PM

Quote:

Originally Posted by shimmy

Good info Mark.........glad BMW did that coz you'd never get yer hands in there

**Mark CSL** · 11-10-2012, 09:00 PM

Quote:

Originally Posted by bryce

Ive never noticed hesitation like you describe Mark but what I have noticed is when I punch the throttle from idle the car almost 'splutters' for a split second before revving. If I hold the revs higher - say 1.5k - and punch the throttle it responds well..

The way i would discribe it was like a dimmer switch and the segments go up 1 2 3 4 5 Its like it jumps from 1 to 3 or 4 but not all the time i know another CSL that is doing this and it is going in for the same thing lets see if this sorts it as well

**Mark CSL** · 11-10-2012, 09:01 PM

Quote:

Originally Posted by shimmy

Good info Mark.........glad BMW did that coz you'd never get yer hands in there

Yip I would never get my thumbs in there shimmy

**cantfind1** · 11-10-2012, 09:32 PM

Yep common prob......there is another one of those under the airbox attached to the throttle actuator, both of these tend to fail after a while....

Uncommonly there is also a throttle position sensor in the foot pedal although not the same part as above.....

The sensor on the flap mechanism for the airbox is the same as the 2 above so if you are having problems like described try swapping them around....

bryce · 11-10-2012, 11:30 PM

Come to think of it, my car is flapless. Could this cause said issue?

**CraigMillwardCroft** · 12-10-2012, 10:35 AM

Quote:

Originally Posted by shimmy

Good info Mark.........glad BMW did that coz you'd never get yer hands in there

**cantfind1** · 12-10-2012, 07:32 PM

Quote:

Originally Posted by bryce

Come to think of it, my car is flapless. Could this cause said issue?

No

11-10-2012, 08:35 PM	#2
shimmy CSL Register Uber-poster! Join Date: Apr 2008 Location: Uk Posts: 14,646 Casino cash: $43909	Good info Mark.........glad BMW did that coz you'd never get yer hands in there __________________ .

11-10-2012, 11:30 PM	#8
bryce S5, Sport On, DSC M-track Join Date: Nov 2008 Location: Scotland (sw) Posts: 1,369 Casino cash: $2512	Come to think of it, my car is flapless. Could this cause said issue? Last edited by bryce; 11-10-2012 at 11:48 PM.

11-10-2012, 08:37 PM	#3
bryce S5, Sport On, DSC M-track Join Date: Nov 2008 Location: Scotland (sw) Posts: 1,369 Casino cash: $2512	Ive never noticed hesitation like you describe Mark but what I have noticed is when I punch the throttle from idle the car almost 'splutters' for a split second before revving. If I hold the revs higher - say 1.5k - and punch the throttle it responds well..

11-10-2012, 09:32 PM	#7
cantfind1 S5, Sport Off, DSC M-track Join Date: Oct 2009 Location: Sydney Australia Posts: 675 Casino cash: $6490	Yep common prob......there is another one of those under the airbox attached to the throttle actuator, both of these tend to fail after a while.... Uncommonly there is also a throttle position sensor in the foot pedal although not the same part as above..... The sensor on the flap mechanism for the airbox is the same as the 2 above so if you are having problems like described try swapping them around....