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Gearbox filler position
Posted: Wed Oct 31, 2007 11:01 am
by locoboy
Hi guys,
I have a 1998 R plate 2.1td and im not sure where the drain plug for the gearbox is and similarly where the filler hole is.
Can anyone help out?
Also what gearbox oil would you recommend?
Many thanks
Locoboy
Re: Gearbox filler position
Posted: Mon Nov 05, 2007 4:03 pm
by locoboy
BTTT
Can no one help with this?
Cheers
Re: Gearbox filler position
Posted: Mon Nov 05, 2007 6:40 pm
by steve_earwig
BTTT?
I thought this one did get a reply, sorry. I'm away from my Haynes but I'll look it up tomorrow if no-one else comes up with info.
Re: Gearbox filler position
Posted: Tue Nov 06, 2007 8:35 am
by locoboy
Thanks Steve,

Re: Gearbox filler position
Posted: Tue Nov 06, 2007 12:52 pm
by steve_earwig
Home at last.
Right, 2.1 gearbox is ML5T. The filler/level plug is on the rear face of the differential housing. Looks like the drain plug is on the final drive casing at the back of the box (final drive casing ≠ differential housing? Haynes strikes again). Looking at the book for the later cars, the drain should be a fairly obviuous square section screw. Oil is SAE 75W80.
I'm not really sure about all this because I had the mechanic change my greabox oil last year when he replaced the clutch (at 201,000km

)
Re: Gearbox filler position 406hdi 2003 110bhp
Posted: Wed Jul 29, 2015 8:43 pm
by charliedog
can anyone help me please. Have just changed driveshaft and lost a bit of gear oil. Have purchased replacement oil but cannot find the gearbox filler/level plug. Even Peugeot parts department cannot advise. At the end of my tether. Any pictures, photographs or videos would be helpful.
Re: Gearbox filler position 406hdi 2003 110bhp
Posted: Wed Jul 29, 2015 8:43 pm
by charliedog
can anyone help me please. Have just changed driveshaft and lost a bit of gear oil. Have purchased replacement oil but cannot find the gearbox filler/level plug. Even Peugeot parts department cannot advise. At the end of my tether. Any pictures, photographs or videos would be helpful.
Re: Gearbox filler position
Posted: Wed Jul 29, 2015 9:10 pm
by steve_earwig
Use the breather on top the gearbox, mine had rather a large one so I presume we're meant to use it. You'll need to remove the air box to see it as it's on top of the gearbox. Failing that use the reversing light switch (also on top of the 'box).
They don't seem to have added the luxury of a level plug on these so you'll need to drain it and add 1.8 litres of finest 75w80 (and don't let the factors tell you otherwise)
Re: Gearbox filler position
Posted: Wed Jul 29, 2015 10:46 pm
by charliedog
Thank Steve,
I thought it was me not being able to find it, will have a look at the Haynes manual again to look for the breather, any photographs videos would be appreciated if you have.
See how I get on tomorrow

Re: Gearbox filler position
Posted: Thu Jul 30, 2015 5:19 am
by steve_earwig
I don't think it's in Haynes as that only covers up to 2002. The breather is on the top of the gearbox towards the front, it's black and I seem to recall it has a lid you pull off. If it's not there (or you're not sure) use the reversing light switch hole, it's on the top towards the mounting (18mm I think).
I can't find a picture that shows it clearly but there's not much else there you could mistake it for.