The other traditional engine available in the C4 is a 1.5-litre diesel, producing 108bhp or 128bhp. Our cars: Citroen Grand C4 Picasso, Honda Civic Tourer, Lexus IS 300h. News. Geneva 2012 Our top-rated products that suit CITROŠN C4 I Picasso (UD) 1.6 HDi Diesel 109 hp best are: Engine oil LIQUI MOLY ŠœoS2, Leichtlauf 10W-40, 5l, Part Synthetic Oil; Engine oil LIQUI MOLY Leichtlauf, High Tech 5W-40, 5l, Synthetic Oil; Engine oil COMMA Pro-Tech 5W-30, 5l, Synthetic Oil; Engine oil LIQUI MOLY Top Tec, 4200 5W-30, 5l, Synthetic Oil Actual offers of Engine oil for CITROŠN C4 II Hatchback 1.6 HDi 115 Diesel 114 hp Top CITROƋN C4 models: Engine oil C4 Grand Engine oil C4 Grand Picasso 11. Clogged engine oil filter. The engine oil filter in your Citroen C4 ensure that the engine oil remains free of dirt particles, metal shavings, soot or unburned fuel, thus preventing damage. If the filter becomes clogged, it can cause the engine to sputter, the faster you drive, the more it sputters. Citroen C4 I Picasso (Phase I, 2007) 1.6 HDi (109 Hp) FAP 2007, 2008 Specs; General information; Engine oil specification : 5W-30 / PSA B71 2290 Coolant : How to change oil filter and engine oil on CITROEN XSARA PICASSO (N68) [TUTORIAL AUTODOC] 1.6 Chrono, 1.6 Exclusive 16V, 1.6 Flex, 1.6 GLX Flex, 1.6 HDi, 1.8 16V Citroen C4 1.6 HDi 2010-2018 Reconditioned Bosch Diesel Fuel Pump 0445010516. Ā£360.00. Production Date: 2010-2018. Engine: 1.6 HDi. Engine Code: 9HP, 9HJ. Xsara Picasso Xsara Picasso (1999-2011) Engine. Capacity. Change interval. Oil type. Xsara Picasso 1.6 HDi DPF. 3,8 L. 20000 km/ 12 months. 10W-40, 5W-40, 5W-30. Oil type: C4 Picasso 1.2 PureTech 130 HNY: Filter capacity 0,5 L, 3,5 L-0W-30: C4 Picasso 1.6 BlueHDi 100 BHY: Filter capacity 0,5 L, 3,75 L-0W-30: C4 Picasso 1.6 BlueHDi 120 BHZ: Filter capacity 0,5 L, 3,75 L-0W-30: C4 Picasso 1.6 THP 155 5FS: 4,25 L, Filter capacity 0,25 L-0W-30: C4 Picasso 1.6 THP 165 5GY: 4,25 L, Filter capacity 0,25 L-0W x 2985. Re: Urgent 1.6 HDI exhaust smell in cabin. by myglaren Ā» Fri Sep 05, 2014 6:43 pm. The usual cause is a leaking injector - the seals/copper washers burn through, especially if they have not been properly fitted. With the bonnet open and engine idling you may be able to see smoke issuing from on of the injectors where it interfaces with XHr20WF.