Clutch pedal heavy intermitantly

Faults and Technical chat for the Discovery Sport
MyfirstLR
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Joined: Thu Jul 30, 2015 6:54 am
Location: West Sussex

Clutch pedal heavy intermitantly

Post by MyfirstLR » Thu Jul 07, 2016 1:39 pm

Hi, my DS is now 7 months old. I am very happy with it generally but have noticed something odd when I have been driving on the motorway for a few miles at motorway speeds.
If I have to downchange when leaving at a junction or a queue of traffic sometimes the clutch pedal has more than twice the pressure needed to operate it than it would normally. Subsequent pedal operations are back to normal pressure.
This has only happened on journeys with prolonged high speeds.
Frequency probably 4 times over 100 mile drive but still disconcerting.

Anyone else experienced/aware of this one?
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Barnsh
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Re: Clutch pedal heavy intermitantly

Post by Barnsh » Thu Jul 07, 2016 3:06 pm

Not noticed this in my manual DS so far.
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PaulTheWall
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Re: Clutch pedal heavy intermitantly

Post by PaulTheWall » Thu Jul 07, 2016 3:18 pm

Does the clutch have any power assistance ? ...
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Barnsh
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Re: Clutch pedal heavy intermitantly

Post by Barnsh » Thu Jul 07, 2016 3:23 pm

PaulTheWall wrote:Does the clutch have any power assistance ? ...
Just standard servo on the DS.

The old focus sti used to do this and other vehicles , in those cases it was down to heating of clutch fluid and expansion. Happened to my brothers old car and many other stis
Solution in that case was upgraded fluid ( better DOT 4.1 or 5 for temp level) .

Can't be air in it , as that would make it soft . Sounds like expansion to me.
My18 FPace, 25t, BRG, R Sport, Auto. 18 way mem Seats, ActiveLED, PrivGlass, ICTP, blis, cooled gloves, spare.
MY17 HSE 180 gone
My16.5 DS 180 b pillar tick ~ rejected :oops:
My16 DS 180 ~ rejected :oops:


Barnsh
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Re: Clutch pedal heavy intermitantly

Post by Barnsh » Thu Jul 07, 2016 3:52 pm

MyfirstLR wrote:Hi, my DS is now 7 months old. I am very happy with it generally but have noticed something odd when I have been driving on the motorway for a few miles at motorway speeds.
If I have to downchange when leaving at a junction or a queue of traffic sometimes the clutch pedal has more than twice the pressure needed to operate it than it would normally. Subsequent pedal operations are back to normal pressure.
This has only happened on journeys with prolonged high speeds.
Frequency probably 4 times over 100 mile drive but still disconcerting.

Anyone else experienced/aware of this one?
Do you use the brakes a lot before this happens , just wondering if the DS Brake and clutch fluid are connected ....some vehicles are joint and some are separate hydraulic systems.
Does the bite position change when stiff.
My18 FPace, 25t, BRG, R Sport, Auto. 18 way mem Seats, ActiveLED, PrivGlass, ICTP, blis, cooled gloves, spare.
MY17 HSE 180 gone
My16.5 DS 180 b pillar tick ~ rejected :oops:
My16 DS 180 ~ rejected :oops:


MyfirstLR
Posts: 20
Joined: Thu Jul 30, 2015 6:54 am
Location: West Sussex

Re: Clutch pedal heavy intermitantly

Post by MyfirstLR » Thu Jul 07, 2016 9:35 pm

The effect has not seemingly been connected to the brakes and after cruising steadily only. Almost feels like a pressure drop in the assistance being given by it's hydraulic system.
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MyfirstLR
Posts: 20
Joined: Thu Jul 30, 2015 6:54 am
Location: West Sussex

Re: Clutch pedal heavy intermitantly

Post by MyfirstLR » Thu Jul 07, 2016 9:37 pm

Also, it has only happened when having to down change whilst slowing down.
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Barnsh
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Re: Clutch pedal heavy intermitantly

Post by Barnsh » Thu Jul 07, 2016 9:45 pm

MyfirstLR wrote:Also, it has only happened when having to down change whilst slowing down.
I'd go to the dealer and see what they find, better to be safe and see what they find.
My18 FPace, 25t, BRG, R Sport, Auto. 18 way mem Seats, ActiveLED, PrivGlass, ICTP, blis, cooled gloves, spare.
MY17 HSE 180 gone
My16.5 DS 180 b pillar tick ~ rejected :oops:
My16 DS 180 ~ rejected :oops:


Barnsh
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Re: Clutch pedal heavy intermitantly

Post by Barnsh » Wed Feb 15, 2017 10:52 pm

MyfirstLR wrote:Also, it has only happened when having to down change whilst slowing down.
Did you ever find out what was wrong re the clutch?
Just curious.
My18 FPace, 25t, BRG, R Sport, Auto. 18 way mem Seats, ActiveLED, PrivGlass, ICTP, blis, cooled gloves, spare.
MY17 HSE 180 gone
My16.5 DS 180 b pillar tick ~ rejected :oops:
My16 DS 180 ~ rejected :oops:


MyfirstLR
Posts: 20
Joined: Thu Jul 30, 2015 6:54 am
Location: West Sussex

Re: Clutch pedal heavy intermitantly

Post by MyfirstLR » Thu Feb 16, 2017 6:13 am

The issue was nothing that could be recreated when it was raised as problem so went nowhere. This effect still happens tho. Usually after a prolonged dual or motorway stretch in top gear. The first change back down to 5th for example can give a real heavy resistance from the clutch pedal. Further depressions are always more normal. Odd really. I am convinced it is assistance related at the pedal.
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