car is a 2003 C3 1.4 SX PETROL Manual Problem. Difficult gearchange, esp three to four, and also engaging reverse. Not stiff, no rasping, just as if there was not enough travel in the mechanism to allow the gears to engage. Local Citroen garage very helpful but unable to locate obvious problem area. Problems on the HDi linkage are documented in the Service Instructions, but it is different to the Petrol one. Other postings on this forum seem to relate to the HDi which has a different linkage, but possibly the same gear lever mechanism/housing. Was the plastic piece others have referred to at the gearstick end or the gearbox end ? Help appreciated. Brian