I have a 2015 ASTRA 1.4 TURBO and have had a clutch problem for some time . The pedal seems stiff most of the time , but intermittently the pressure on the pedal disappears and goes to the floor . I have to pump the pedal a few times before pressure returns . During a service a couple of years a clutch slave cylinder was replaced , but this only helped for a few months . Sometimes when clutch pedal has been acting up and I park , then return to car engine won't start and onscreen message says ' PRESS CLUTCH PEDAL TO START ENGINE ) . Car has done 31,000 miles and I didn't renew Vauxhall Lifetime Warranty .