C4 picasso semi auto gear box not releasing pressure

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cqlimavady
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C4 picasso semi auto gear box not releasing pressure

Post by cqlimavady »

Hi someone plz plz help before i loose will to live ,i bought c4 picasso semi auto after a sever injury left me with bad spinal injury effecting my legs causing me to need automatic.after long time searching got a 2013 1.6hdi beauty with 64k on it,i drove car loved it looked after every thing it needed it got,,my mechanic is a retired citroen mechanic from a well known family owed chain here so knows his stuff..my problem started other day when i noticed my clutch slipping when i put the foot down pr climbing hills,so i called noel,mechanic, to arrange ,well he stripped out old 1 yes plate totally gone,but ge couldnt get the system to depressurize, so he mansged to get old clutch out and new 1 in but now the system wont recognise new clutch,he tested aculator and its running ok,but its like driving with clutch half pressed in,,plzz someone help or point us in right direction ,im badly disabled unable to walk muchvwithout terrible pains.i cant understand why no warning lights at all shòwed on dash oŕ anything beforehand.
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GiveMeABreak
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Re: C4 picasso semi auto gear box not releasing pressure

Post by GiveMeABreak »

I can't offer much else - if this chap is an ex Citroen Mechanic he should know what the procedure is.

I'm assuming he has access to Diagbox in order to complete the following procedures:

The following operations need to be undertaken after replacing the clutch:
  • De-pressurise and bleed the hydraulic circuit
  • Reset the clutch cycle counter to zero (only if replacing the clutch mechanism with a new one)
  • Initialise the clutch bite point
cqlimavady
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Re: C4 picasso semi auto gear box not releasing pressure

Post by cqlimavady »

He was saying he thinks the problem lays with the fack it wouldnt let he depressurize clutch at start,so he was able to replace plate by manually dropping it out once cross member was out,now he has plates back in but still wont depressurize, he has done all procedure as your saying,i am going mad folks,,im very badly disabled,living in a world of pain all thanks to my service in forces and anyone who knows will know a military pension dont go to farr much less being able to fix cars,,omg ,,so much for citroen automatic making my life easier
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GiveMeABreak
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Re: C4 picasso semi auto gear box not releasing pressure

Post by GiveMeABreak »

I understand what you are saying and am sorry to hear of your situation and health.

It's not the clutch that's depressurised but the hydraulic actuators for the clutch and gearbox operation. Remember this is not a proper automatic at all - just a piloted manual system as you know. These systems can be a pain to fix when they play up, but obviously we have no idea here what he has done and whether something has happened in the process of not following the recommended procedure.

I can only suggest it is taken to the dealer to remedy as they have the necessary diagnostic kit to find out the what is wrong with it - but from experience here, these operations are best left to the dealer to do for this reason - or if your mate has any favour with the dealership he might get them to sort if for a bit less...
cqlimavady
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Re: C4 picasso semi auto gear box not releasing pressure

Post by cqlimavady »

Marc thanks for advice,,i will ask him these points you pointed out,thanks again,,if i was able to walk i think i would even goto church to try divine intervention
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GiveMeABreak
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Re: C4 picasso semi auto gear box not releasing pressure

Post by GiveMeABreak »

Assuming it has been properly centred using the correct tool, then these are the 2 procedures that need to be undertaken which if not completed may possibly be a cause of the issues you are having:

Initialisation of the bite point:
Using the diagnostic tool, this function activates the hydraulic clutch stop to define the actual position of the stop in relation to the clutch wear.

Programming of the piloted manual gearbox grille:
Using the diagnostic tool, this function activates the engagement of all of the gears to enable the piloting actuator to define the position of the gearbox grille.
dan g
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Re: C4 picasso semi auto gear box not releasing pressure

Post by dan g »

Just thinking is it possible the friction plate disc is in back to front.
The protruding spined side should face the flywheel.

Was it friction plate only installed... if so was there an issue with pressure on the slave cylinder keeping it extended during assembly
cqlimavady
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Re: C4 picasso semi auto gear box not releasing pressure

Post by cqlimavady »

Thanks guys will let mechanic know your points,,,lets pray it works..
I simply cant jnderstand why it wont learn biting point, so much for computers in cars,,youd think it would have gave some sorta warning,,but thats life,,s**t
cqlimavady
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Re: C4 picasso semi auto gear box not releasing pressure

Post by cqlimavady »

Shes still holding clutch on when hes braking,he just told me has her built but wont find biting point and when going is holding clutch on..bugger
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xantia_v6
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Re: C4 picasso semi auto gear box not releasing pressure

Post by xantia_v6 »

A random thought is that the current problem was present before the previous clutch failure, and caused the clutch wear. So not a result of the repair procedure?
cqlimavady
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Re: C4 picasso semi auto gear box not releasing pressure

Post by cqlimavady »

Thats exactly wott hes thinking now himself.it caused the whole poblem and burned out the plate itself
Bobkam
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Re: C4 picasso semi auto gear box not releasing pressure

Post by Bobkam »

Did you get a solution as am experiencing the same with my Grand C4 2014 ehdi, not pressurizing at all upon changing clutch kit
Bobkam
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Re: C4 picasso semi auto gear box not releasing pressure

Post by Bobkam »

And we don't have a Citroën local dealer in Kenya