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I have a C4 Picasso VTR+ HDi on a '59 plate which has developed a handbrake fault - the dash display is telling me "parking brake fault" and the manual "switch" on the dash is loose on one side and partially sunken into the fascia and has no effect on the operation of the brake.

 

Not sure if this is an easy fix as I have not owned the car for very long please tell me its a simple and inexpensive cure!

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  • 9 months later...

been for test drive in a 2008 1.6 hdi 110 hp, lovely car but don't know exactly how to disengage the handbrake, everytime I tried to set off the car lifted on the brakes, both fwd and reverse, but the handbrake remained on, the garage guy was equally flummoxed, what interaction is required between clutch, brake and accelerator pedals to have successful handbrake release, needless to say we did complete the test drive, and very nice it was too, but cant recall what we did to get the damned brake off, can somebody please enlighten me

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This i8s the official words from a 59 reg C4 Picasso Handbook. Yes it's a long section.

The first part is normal op, the second is Hill start assist. By the sounds of your experienec I'd say that teh hill start assist kicked in, wa sthe car on the level?

 

Normal OP

The electronic parking brake combines
2 operational modes :
- AUTOMATIC :
Automatic application when the
engine stops and automatic release
on use of the accelerator
(automatic operation by default),
- MANUAL :
Permanent manual application /
release of the parking brake is
possible by pulling control A.

 

AUTOMATIC OPERATION
To start the vehicle
The electronic parking brake releases
automatically and progressively
when you press the
accelerator :
- with a manual gearbox (first
gear or reverse gear engaged),
press down fully on the clutch
pedal then press on the accelerator
pedal and move off.
- with an automatic gearbox, accelerate
with the selector in position
D, M or R.
- with an electronic gearbox, accelerate
with the selector in position
A, M or R.

 

Full release of the parking
brake is confirmed by :
- the extinction of warning lamp P on
control A and on the instrument panel,
- the display of a message « parking
brake released » on the multifunction
display.

 

To immobilise the vehicle
Immobilisation, engine off
With the vehicle stationary, the parking
brake is automatically applied
when the engine is switched off.

 

The application of the parking
brake is confirmed by :
- the lighting of warning lamp P on
control A and on the instrument
panel,
- the display of a message « parking
brake applied » on the multifunction
display (except DT).
Note : an operation sound will
confirm to you the application/release
of your electronic parking
brake.

 

Immobilisation, engine running
With the engine running and the
vehicle stationary, in order to immobilise
the vehicle you need to
manually apply the parking brake
by pulling on control A.
The application of the parking
brake is confirmed by :
- the lighting of warning lamp P on
control A and on the instrument
panel,
- the display of a message « parking
brake applied » on the multifunction
display.
When the driver’s door is opened,
a beep is heard and a message
displayed if the parking brake has
not been applied.

 

ACTIVATION / DEACTIVATION OF
THE AUTOMATIC FUNCTIONS
The automatic application when the engine
is switched off and the automatic
release when you press the accelerator
can be deactivated. Activation / deactivation
is performed using the Menu of
the instrument panel screen. To do so,
select « Personalisation/Configuration /
Define the Vehicle parameters / Driving
assistance / Automatic handbrake ».
The deactivation of these
functions is confirmed by the
lighting of this warning lamp
on the instrument panel.
With the automatic functions deactivated,
the application and release
of the parking brake are
done manually.

 

MANUAL OPERATION
Manual application / release of the
parking brake is always possible.
To start the vehicle
With the ignition on or the engine
running, to release the parking
brake, press on the brake pedal,
pull then release control A.

 

The full application of the parking
brake is confirmed by :
- the extinction of the warning
lamp on control A and of warning
lamp P on the instrument panel,
- the display of a message « parking
brake released » on the multifunction
display.
Note : If you pull control A
without pressing the brake
pedal, the parking brake
will not be released and the
« foot on brake » warning lamp will
light up on the instrument panel.

 

To immobilise the vehicle
With the vehicle stationary, to apply
the parking brake whether the
engine is running or off, pull on
control A.

 

The application of the parking
brake is confirmed by :
- the lighting of the warning lamp
on control A and of warning lamp
P on the instrument panel,
- the display of a message « parking
brake applied » on the multifunction
display.
When the driver’s door is opened
with the engine running, a beep is
heard and a message displayed
if the parking brake has not been
applied.

 

MAXIMUM APPLICATION
If necessary, you can utilise maximum application of the parking brake. It is obtained by means of a long pull on
control A, until you see the message « parking brake applied » and a beep is heard.
Maximum application is indispensable :
- in the case of a vehicle towing a caravan or a trailer, if the automatic functions are activated but you are applying
the parking brake manually,
- when the gradient you are parked on is variable in its effect (e.g. on a ferry, in a lorry, during towing).
Note :
- In the case of towing, a loaded vehicle or parking on a gradient, turn the front wheels towards the pavement and
engage a gear when you park.
- After a maximum application, the release time will be longer.
PARTICULAR SITUATIONS
In certain situations (starting the engine ...), the parking brake can automatically alter its force. This is normal operation.
To advance your vehicle a few centimetres without starting the engine, but with the ignition on, press on the brake
pedal and release the parking brake by pulling then releasing control A. The full release of the parking brake is
confirmed by the extinction of warning lamp P (red) on the instrument panel and the display of a message « parking
brake released » on the multifunction display.
If the parking brake malfunctions while applied or if the battery runs flat, an emergency release is always possible
(see paragraph « Emergency unlocking »).

 

HILL START

To aid starting on a gradient, your
vehicle is equipped with a system
which keeps it temporarily immobilised
for the time (approximately
2 seconds) it takes to move your
foot from the brake pedal to the
accelerator pedal.
This function is only active when :
• The vehicle is completely stationary,
with your foot on the
brake pedal.
• In particular conditions on a slope.
• With the driver's door closed.
Note :
The hill start assist function cannot
be deactivated.
On a descending slope, with
the vehicle stationary and reverse
gear engaged, the vehicle
is held for a brief moment when
you release the brake pedal.
Warning :
do not exit the vehicle while it is being held in the hill start assist phase.
If you need to exit the vehicle with the engine running, manually apply the parking brake and ensure
that the warning lamp P (red) on the instrument panel is permanently on.
On an ascending slope, with the
vehicle stationary, the vehicle
is held for a brief moment when
you release the brake pedal :
- provided you are in first gear or
neutral on a manual gearbox,
- provided you are in A or M on an
electronic gearbox,
- provided you are in D or M on an
automatic gearbox.
Display of these warning lamps indicates
a malfunctioning of the hill
start assist function.

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ruddy 'el, a lever is simpler,

I was on level ground, changing drivers for my go in driving seat, I can only assume that I didn't have enough revs on, I usually pull away on idle speed unless on a hill, again back on the forecourt I wasn't revving the engine, so looks like its down to give it more gas when pulling away

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To be honest SWMBO never got use this new faggled handbrake and to some extent neither did I, we sold the C4 Pic and went for a C3 Pic, it has a lever on the floor.

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Theres one on ebay, they are selling for the same reason, wife cant get used to it, nowt wrong with the tried and tested good old lever, having said that there are thousands of owners who must be happy, just have to get used to it I suppose

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I've read and re-read the brake info, but not yet having the car I'm getting more mystified, do owners prefer using automatic or manual operation? remember this is a manual gearbox, how does the auto mode perform if you are in a queue of traffic on a downhill gradient, I have visions of shunting the car in front unless I have the footbrake pressed

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When we had ours it was used in Auto mode, very rarely used the lever. If you were on a slope facing down you can put it ON with the dash lever or keep your foot on the brake. On an upward slope you again put the brake ON with the lever or keep foot on brake.  If you ahve the EGS and you leave that in Auto and are on a hill with the handbrake applied or foot brake ON then after so many minutes the EGS will go to neutral but the lever will still stay in A, so you need to move the lever away from A to N to go back to A.

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Must say that I would not like to go back to a conventional handbrake and my wife is happy with the dashboard lever.   I like the way you can just drive off and the brake comes off automatically..  No problems uphill or downhill.

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  • 6 months later...
  • 3 months later...

Curious as to whether the hill start assist is a transmission brake, noticed that when on a hill with the footbrake applied if I activate the handbrake switch and release the footbrake, after the prescribed 2 second delay for the hill start assist to work , there is a slight lurch as the car settles onto the main braking system, this has me wondering if the hill start is transmission related

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From what you say the dashboard switch is at fault, seems it is broken,loose or at worst requiring to be replaced. Take to your Citeron dealer and ask about it! Possible only loose if so sorting will not be expensive if requiring changed that will be another matter and a quote required followed by considerable thought. I see it is possible to turn off the automatic use. If this is done might be problems when leaving car. Possible operation if you have no working brake on dash, stop car,foot on brake and clutch,turn off engine and engage 1st or reverse gear ,take foot off clutch. Wondering how did you finish up as this seems quite an old post, I just found it by accident

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  • 2 months later...

This morning I applied the handbrake using the dash switch, warning message that it was faulty, heavy traffic so carried on motoring avoiding the handbrake, got to my destination tried it again, no go,  same message with the brake system symbol flashing, switched off the engine,suprised when the handbrake came on as usual, got the impression it could be related to the switch somehow. It fails on manual operation, it works on engine shut down,  the hill start assist still works, any clues ?

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Granpa

 

Hill start assist operates on the front brakes only and is controlled by the ESP system not the handbrake.

 

You may consider the C4 owners forum as you will get more detailed info including technical documents etc if you become a premier member. check this link on handbrake switch

 

http://c4owners.org/plugins/forum/forum_viewtopic.php?201939

 

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Happily its stopped throwing up the message, recall that at the time my fuel flap was open so now I am wondering if there was some sort of message from the filler electronics and the rest of the cars electrics, its all guesswork as a diagnostic gave no info, in fact it gave no indication that the handbrake was even on the diagnostics system

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  • 5 years later...

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