Accelerator feels remote!

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ralft01
Joined: Mon 02 Jun, 2014 09:00
Posts: 37

  Z3 roadster 2.8

Accelerator feels remote!

Post by ralft01 » Sun 06 Dec, 2015 17:00

Mine is a 1998 2.8 Automatic. Lovely smooth drive. I have become aware recently (although it has always been the same) that the accelerator feels remote, if that makes sense. For example, in the wife's 'ordinary' car, the accelerator response is instantaneous, both ways. Push the pedal down, the engine accelerates, lift the pedal and it decelerates, and acts like a brake. In the Z, push the pedal down, pause, think about it, grudging acceleration. Lift the pedal up, nothing changes! No instant deceleration, no braking action from the engine.
OK, push down hard and the rocket lights up, but normal steady acceleration is a fight.
I have put this down to 2 things. The automatic transmission and the engine control unit, working together to frustrate me.
Any thoughts?

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BladeRunner919
Joined: Fri 17 Feb, 2012 20:18
Posts: 2220

  Z3 roadster 1.9

Re: Accelerator feels remote!

Post by BladeRunner919 » Sun 06 Dec, 2015 18:50

ralft01 wrote:The automatic transmission
There's your answer.

Dino D
Joined: Fri 10 Feb, 2012 16:59
Posts: 376

  Z3 roadster 2.8

Re: Accelerator feels remote!

Post by Dino D » Sun 06 Dec, 2015 19:09

You could try a new accelerator cable, cheap from the dealer and common for them to get stiff.
In my manual car it made holding a steady speed a chore when the cable became stiff.
Of course an auto transmission introduces a 'slushy' feel but maintaining steady speed or steady acceleration shouldn't be an issue.

An autobox usually benefits from an oil and filter change so would look at that regardless.

Rafolian
Joined: Wed 27 Feb, 2013 08:41
Posts: 547

  Z3 roadster 2.8

Re: Accelerator feels remote!

Post by Rafolian » Mon 07 Dec, 2015 07:42

You don't get any engine braking with an auto box.

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Southernboy
Joined: Thu 07 Oct, 2010 13:39
Posts: 6312

  Z3 roadster 3.0i
Location: Johannesburg

Re: Accelerator feels remote!

Post by Southernboy » Mon 07 Dec, 2015 13:13

Before you go off to get a cable, you could try removing it at the throttle and getting some WD40 or such down into the cable casing. Whilst you have it disconnected, and putting the oil in, you can pull / push the cable inside the sleeve to determine if it is tight or sticking. Next, the accel pedal is hinged onto the floor and is simply a plastic extension of the part. I have once had this hinge point break down to the point where it was sticking - mostly when lifting my foot off the pedal. You may want to get the carpet out the way, clean up around the area and spray some WD40 onto it.
Finally, when you disconnect the cable from the throttle, you can also clean up the linkages on the throttle and apply some WD40 to them to ensure they are able to move freely as they should. Disconnecting the cable at the throttle is very easy and common sense. If you want a detailed description of how to, let me know and I'll post the write-up as per the Bentley's workshop manual. :wink:
"Normal is overrated"
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ralft01
Joined: Mon 02 Jun, 2014 09:00
Posts: 37

  Z3 roadster 2.8

Re: Accelerator feels remote!

Post by ralft01 » Fri 11 Dec, 2015 16:28

Thank you all! Scheduled linkage etc overhaul when the rain stops.

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Boysie
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Joined: Sat 23 Apr, 2005 15:24
Posts: 1642

  M roadster S50
Location: Wallington Surrey
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Re: Accelerator feels remote!

Post by Boysie » Sat 19 Dec, 2015 14:53

Dino D wrote:You could try a new accelerator cable, cheap from the dealer and common for them to get stiff.
I need to do mine or oil it
Ray

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