How To... Remedy a non selecting 4th Gear

Remove the locking wheel nut cover with long nose pliers then undo with the locking wheel nut socket. Loosen the rest of the nuts with a normal socket head. Elevate the vehicle, place on two axle stands and remove the front wheel. Take extreme safety precautions when working underneath a car.

Undo engine under tray and remove.

Ditto

Undo wheel arch side cover

Prop up the gear box so when you remove the end casing mounting bolts, the next gasket seal doesn

Undo the ‘gear box end casing’ bolts.

Tap casing with a soft hammer to loosen it.

Remove swarf from inside the bottom of the gearbox...

...and from end casing.

Clean the casing face and then apply a gasket sealant. Reassemble in the reverse order.