Hi successfully changed the engine oil and coolant today so was going to tackle the gearbox and diff oil tomoz is there anything I need to know, I'm assuming I drain and fill the gearbox and diff through drain and fill plugs thanks

 

Gearbox fills through the dip stick hole.

 

dunno how old your car is, but its worth putting WD40 on the diff plugs now if you intend doin it tomorrow. My filler one was siezed on my classic

 

I can't get under the car till tomoz but will have wd40 at the ready, I've never had the intercooler of to get to the dipstick, is this a big job?? The car is a 2003

 

to flush the box right you will need 5 ltrs of cheapo and 5 ltrs of good stuff drain the box refill with cheapo start up go for a 1/2 mile drive drain and put your good stuff in when you drain the oil you never get all the old oil out so its a good practice to flush your box 1st