Gearbox fault.

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Qube90
Posts: 9
Joined: 23 Apr 2018, 20:45

Gearbox fault.

Unread post by Qube90 »

Hi.
I got a warning on the display, Gearbox Fault and the Service light is on.
Its stuck in 3rd gear and the sport and snow light is flashing. The next day the car was fine but it has happend 2 times more.
I have had a look at the codes and the gearbox error code is P2728.

The car is a 2011 citroen c5 2.0 HDI.
Qube90
Posts: 9
Joined: 23 Apr 2018, 20:45

Re: Gearbox fault.

Unread post by Qube90 »

Any ideas?
RichardW
Forum Treasurer
Posts: 12456
Joined: 07 Aug 2002, 17:12
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Re: Gearbox fault.

Unread post by RichardW »

Is it a proper auto? If so it's probably the valve block.
Richard W
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xantia_v6
Forum Admin Team
Posts: 10762
Joined: 09 Nov 2005, 22:03
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Re: Gearbox fault.

Unread post by xantia_v6 »

It would help to know which transmission you have, probably an AL4 or AM6.

It could be a faulty pressure control valve in the valve block, or anything else that causes the hydraulic pressure in the transmission to be low. Perhaps even low fluid level.

More information is needed.
Qube90
Posts: 9
Joined: 23 Apr 2018, 20:45

Re: Gearbox fault.

Unread post by Qube90 »

Its a am6 gearbox.
If I understand it correctly the faulty code p2728 is pointing to valve slc3 .

Thanks