223Technical DataTyresRestricti onsNot a ll tyres ava ila ble on the marketcurrently meet the structural requirem ents.We recommend that you consult aVauxhall Authorised Repairer concerningsuitab le tyre mak es.These ty res have und ergone special teststo establish their reliab ility , safety andspecific suitability for Vaux hall vehicles.Despite continuous ma rk et monitoring, weare unab le to assess these attributes forother tyres, ev en if they hav e been g ra ntedapprova l by the relevant authorities or insom e other form.Further information 3 151.Winter tyres 3Tyres of size 205/50 R 16 are not suitablefor use as winter ty res ex cept on v ehicleswith the Z 16 LET engine.Tyres of size 205/45 R 17 are not suitablefor use as winter ty res.If winter tyres are in use, the spare wheelmay still be fitted w ith a summ er ty re. Useof the spare w heel may a lter vehicleha ndling. Obtain a replacement for thefa ulty tyre as soon as possible, and hav ethe wheel balanced and fitted to thevehicle.Further inform ation 3 155.Tyre ch ains 3Ty re c hains may be used on the frontwheels only.We recomm end the use of tyre chains witha fine mesh that add no more than 10 mmto the running surface a nd the insid es ofthe tyres (including chain lock).Ty re c hains are not permitted on tyresizes 205/50 R 16 and 205/45 R 17.Further inform ation 3 155.WheelsWheel bolt tightening torque: 110 N m.Spare wheel 3Depending on model, the spa re wheel isdesigned as a temporary spare wheel 3 .When using the spare wheel, the d riv ingbehaviour may be modified. Replace thefaulty tyre as soon a s possible, b alance thewheel and refit to vehicle. Follow the noteson this page and 3 155, 3 171.O n vehicles with alloy wheels 3 the spa rewheel m ay have a steel rim.The spare wheel can b e fitted with asmaller tyre1 ) and a sm aller rim than thewheels fitted on the vehicle.Tyre pressure 2)The specified ty re pressures are valid forcold ty res. The increased ty re pressureresulting from ex tensiv e d riv ing must notbe reduced. The tyre pressures specified onthe following pages ap ply to both summerand w inter tyres.The spare wheel m ust a lways be inflated tothe tyre p ressure for a full load – see tableon follow ing pages.Further information 3 151 to 3 155.1) Co untry-specific version: Th e spa re w heel isonly to be used as a tempo ra ry sp are wh eel.2) 1 ba r corresp on ds to 100kp a/14.5 psi.