Tue Dec 28 2010, 04:55am. Member No: #15767. Joined: Oct 05 2010. Location: Verona. Hi all, I've recently bought a used C4 Picasso 1.6Hdi EGS from a local Citroen dealer. On this car there is an annoying problem: there is no warning for driver's unfastened seatbelt: passenger's one works flawlessly. Re: 2009 C4 Grand Picasso ABS issues. I fixed the issue and thought I'd post the solution in case this crops up with someone else. The sensor and active sensor bearing both turned out to be fine and functional, as were the connectors and electric harness. It turned out that the sensor mounting had been knocked slightly out of place somehow. Fully synthetic oil is most highly recommended for the Citroen C4 Grand Picasso, with diesel and petrol variants being recommended 10W-40 and 5W-30 also being suitable. What is the oil capacity for a Citroen C4 Grand Picasso? The oil capacity of your Citroen C4 Grand Picasso varies vehicle to vehicle due to model series and engine size. 2 days ago · Here are some of the issues that have been reported with the Citroen C4 Picasso: - Suspension problems: Some owners have reported a bumpy ride and suspension noise, which could be caused by worn or damaged suspension components. Re: C4 Picasso under bonnet fusebox. by RichardW » Wed Nov 05, 2014 12:53 pm. @ lighty, interesting info from service.citroen: Part Number Description Quantity Price excl. VAT Price incl. VAT Total incl. VAT Selection. 00006500FG FUSE BOX 141.61 GBP 169.93 GBP 169.93 GBP. What to look for when buying a Citroën Grand C4 Picasso 2014 - 2018, covering common problems to check for and overall vehicle reliability. Location: Edinburgh. I have an 08 C4 Picasso VTR+ 1.6 HDi. Recently had fuel pipes replaced and garage tried to clear fault codes but could not get any power to the computer via the OBD2 socket to connect to the car. Have found out that there are 2 pins that should have power ie 1 and 16, but only pin 1 has power to it. Lift and support the vehicle. Disconnect the connector (at "a"). Remove the bolt (1) of the rear wheel speed sensor. Remove the rear wheel speed sensor (2). When refitting, avoid impacts to the head of the rear wheel sensor. Tightening Torque of the Rear Speed sensor bolt is 1 daNm. Then run another Global Test and clear the fault codes. Don't bank on the Ford being any better. We used to have both a 1.6HDi Focus and a C4. It was the Ford that was in the garage all the time racking up bills for clutches, not starting and electrical faults. And the C4 was more comfortable and used less fuel. So we got shut of the Focus and bought new C4. Which has been as good as the old one. C4 Grand Picasso transmission issue Dear All, I have a second-hand C4 Grand PiccasoModel : C4 Gr Picasso Vtr+ AirEhdi SaEngine : 1.6 E-H [more ] By WayneL On Wed Nov 15 2023, 03:49am. Near side (left) dipped headlight not working Hi - I have a 2017 C4 Picasso and the left side headlight has stopped working. hQbGK.