I am now on my 3rd one. What I think happens is that the relay coils protection circuit is destroyed by the back emf from the coil and then the relay does not switch over which discharges the battery. The actual relay is fine or at least it was on the one I cut open. Diagnostics should throw up the fault code for a non working relay on it. 1. response. Won't leave first gear no auto transmission.6. service warning light on and says engine needs repair auto transmission not available only 1st and reverse gears work. 2013 Citroen C4 1.6 e hdi. Posted: Dec 9, 2023. 1. response. Battery charge fault. Something that’s often over looked is testing the battery load - it’s often a more reliable test of a battery - mine cost £16 from amazon. It’s been a long hard winter so multiple short journeys will have damaged many batteries. Now your car is over 3 years old, brakes etc are pretty good prices from Citroen. Citroen C4 Grand Picasso - Faulty folding door mirror. Hello all My door mirror has resently died in the folded in position. I have confirmed there is no power to the connections to the mirror motor and have searched on line for connections to the fuse box. Daniel Defoe: 1725. If battery goes flat overnight when car is not being used, it suggests something is draining it. (assuming the battery is not faulty, which it shouldn't be as it's new)Check any light in the boot or glovebox is going out, even under the bonnet if it has one there. I mean look at the spec and features in C4 Grand Picasso Top Spec, any other brand would add £10k-£15k on top of their standard price to get these sort of features. So instead Citroen makes money on labour and parts which reflects on your quotation of £900 for a simple job. The car had a major service by citroen just a couple of weeks ago, filled it up this morning from sainsbury's full tank fill up 45 litres. It then drove to work for 40 minutes no problem. The battery was 100% before this, stop start was functioning as normal. Obviously all the below, has run down the battery significantly, now it has a red Joined: Mar 22 2018. Location: Epsom. I have a C4 Grand Picasso (08) which has developed the 'multiple warning light' fault, which seems to have many threads, in various guises, on this forum. At the same time it also goes into limp/safe/downgraded (not sure if these are even the same thing) driving mode. Having sifted through the forums for Video Guide with explanation and accurate description of all maintenance, repairs, servicing, filter replacement, disassembly and reassembly of mechanical parts, bodywork and interiors - Battery: Citroen C4 Picasso. 600 Answers. SOURCE: citroen picasso battery charge fault. Probably a short brush in the alternator, if you can find a specialist auto electrician it is possable to replace the brush/control pack but most places want to stripe you for an exchange unit. Posted on Jan 02, 2010. v5gw.