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![]() | Home > Technical > FL2 2.2 SD4 Power Surgeing, Throttle like a hair trigger |
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Boxa Member Since: 01 Apr 2024 Location: Coventry Posts: 159 ![]() ![]() ![]() |
you need to get some live data and try to have a look at the throttle response I don't think it'll be the throttle body but without live data your only guessing |
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IanMetro Member Since: 11 Sep 2017 Location: Somerset BS21 Posts: 3477 ![]() ![]() ![]() |
If you have always had the problem since beginning of ownership and it shows when trying to Slowly manoeuvre on Slope, then I believe that this is standard SD4 Auto behaviour.
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Paul4751 Member Since: 02 Mar 2018 Location: lightwater Posts: 212 ![]() ![]() ![]() |
I have similar vehicle sd4 and also find throttle too sensitive that was not apparent on a previous td4. I live with it in slow moving traffic by selecting manual 2nd gear. It can easily go from stop in 2nd and I change up manually until moving at normal highway speeds. It still changes down automatically but will not go into 1st so avoids being erratic in that gear. Once on the open road I go back to auto for majority of journey. I’ve no cure for reversing uphill, which has to be done with extreme sensitive throttle. |
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Dazgill Member Since: 27 Sep 2025 Location: Gloucestershire Posts: 3 ![]() ![]() ![]() |
Thanks Boxa. I’ve just sorted my SDD so I’ll have a look at that.
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jenks1950 Member Since: 20 Apr 2013 Location: Stevenage Posts: 265 ![]() ![]() ![]() |
I tend to use Terrain Response for delicate uphill manoeuvrers. Grass gravel and snow definitely calms things down a bit
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jules Member Since: 13 Dec 2007 Location: The Wilds of Warwickshire Posts: 5532 ![]() ![]() ![]() |
yes I use Grass/gravel mode when driving up car ramps etc - it reduces accelerator sensitivity.
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OxonPete Member Since: 11 Jun 2024 Location: 11350 France Posts: 254 ![]() ![]() ![]() |
Quick reply to Jules : My SD4 definitely cuts power if foot brake is applied…..I have always “covered” the brake pedal with my left foot….to make for rapid brake application …..bit if I touch the brake pedal accidentally power is always cut for a second …..or two…
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IanMetro Member Since: 11 Sep 2017 Location: Somerset BS21 Posts: 3477 ![]() ![]() ![]() |
Thanks to all for the tip of using Grass/Gravel for more gentle manoeuvring. FL2 XS SD4 Auto 2010 2012-2017 (21k - 91k miles) (MY2011)
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Dazgill Member Since: 27 Sep 2025 Location: Gloucestershire Posts: 3 ![]() ![]() ![]() |
So I did live data. Ignore the first graph as I was not steady when pushing the pedal.
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countax Member Since: 16 Mar 2010 Location: Cotswolds Posts: 47 ![]() ![]() ![]() |
I wish I had known this a few months ago. I do my own oil changes and having had a manual TD4 for 14 years I moved over to an SD4 auto. Upon driving the SD4 up the ramps I promptly drove right over the top and they ended up parked behind my front wheels! Luckily it was an easy removal, they just pulled out sideways. |
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