If you have spotted an oil stain on the ground, you will need to verify that this leak is in truth originating from the gearbox of your Citroen Grand C4 Picasso. To accomplish this, you will need to go under your car and follow the oil leak. If it is transmission oil, it must be originating from your gearbox sump or an adjacent room. Posted July 20, 2015. On 6/18/2015 at 6:50 AM, paul.h said: At the back of the engine is the egr valve system so it could be one of the seals on this is leaking. If the module that the egr valve sits in needs refitting that is about 3 hours but if just the valve that is about 1 hour. Lower down is the oil level probe. How much oil is required for the CITROЁN C4 II Grand Picasso 1.6 HDi / BlueHDi 115 Diesel 115 hp? To change oil in the CITROЁN C4 II Grand Picasso 1.6 HDi / BlueHDi 115 Diesel 115 hp, you'll need 3.75 L of motor oil. Oils with which OEM approvals are recommended for the CITROЁN C4 II Grand Picasso 1.6 HDi / BlueHDi 115 Diesel 115 hp? Part number 9979.A4. Its the same as that sold by Fiat and Shop4parts er and ebay at much cheaper prices. Part Number: S4P1161. Retail Price: £9.70. Our Price: £8.24. Current price at shop4parts. The EGS actuator is actually something originally developed by Fiat which is why they sell the correct oil. Transmission Oil change of 2012 Citroen C4 1.6 Turbo EGS Leo 108 subscribers Subscribe Subscribed 74K views 5 years ago Tools required: - Penrite 75w-80 gear oil - hand tools wrenches / When should a CitroËn C4 universal joint be replaced? You must change the drive shaft of your C4 (CitroËn) approximately every 80,000 miles. But it must be checked regularly, especially the CV boots. Note that changing the drive shaft requires the correct tools to remove the wheel and braking system, as well as changing the oil in the gearbox. The gearbox gears of your Citroen C4 Picasso are immersed in oil to limit friction and ensure smooth operation of all its functions. Nevertheless, although it is much less common to perform than that of the engine, it is important to perform periodically an emptying of your vehicle's gearbox. It is apt to overheating. Moreover, quite early, oil seals lose their tightness, and ball joints of the gearbox linkage get damaged. To extend the lifespan of the transmission, specialists recommend to regularly replace the transmission fluid. For doing this you can use Citroën step-by-step repair and maintenance tutorials. Running gear Driving Automated mode Manual mode Select position A. Select position M. The gears engaged are displayed in succession AUTO or A and the gear engaged is in the instrument panel. displayed in the instrument panel. The gear change requests are only acted on if the engine speed permits. Page 153: Stopping The Vehicle I did exactly the same on my previous 2014 C4 Picasso, doing exactly the same thing too. I left a drop link connected, and knocked the suspension strut, so it pulled itself toward the back of the car (because of the suspension spring) and pulled out the driveshaft and dropping a large puddle of oil. You'll only need 1L bottle at most. SvF6.