citroen c5 automatic gearbox faultcitroen c5 automatic mpgcitroen c5 automatic transmission fluidcitroen c5 automatic reviewcitroen c5 automatic gearbox prob Car is 2008 (X7 model) C5 2.0 HDI with the 6-speed AM6/TF80 gearbox. It has done 140k miles but generally goes OK. However, since I've been driving it over the last couple of months I have noticed the odd weird shift pattern. WSwqYN.