Renault Laguna III Gearbox Oil

[taffyboy]

I've just bought a Laguna Coupe 2.0 DCi (GT 180HP Version) that has done a shade over 100000 miles, and I want to change the gearbox oil on it. On a Laguna II DCi that I had a few years ago, you needed a special dipstick to check the oil level in the gearbox. Is it the same on the Lag III or is it a simple drain and refill?? Thanks