Hopefully i can help..
What Peugeot - Make / Engine / Year - do you have?
Is this an Auto or Manual box?
Any particular reason as to why you require to top up?
Peugeot 206 GLX 51 plate, manual.
Garage told me to take the car back to them and they would top the oil up in the Gear box
Hi..there thanks for your responce..
Ok..Unless you have leak on the gearbox itself seal wise or you've had work done on the gearbox - a drive shaft removed - or removed for doing a clutch for example where you would normally need to top up - if none of these have been done or no leaks are seen then the gearbox shouldnt need "topped up" really - ive include a diagram below as well as the oil type and the amount the box holds and the fill points on the 206 of that year - you need a special oil delivery pump usually to fill the box via the fill points detailed..I do hope this helps