Gearbox oil change, advice please.
Hi guys. The gearbox in my D3 is a bit on the clunky side. Sometimes when pullling out from junctions, it feels like there is a minimum of torque getting through the gearbox then you put your foot down a wee bit because of the timber lorry hurtling towards you and you fly away with a jerk.
When shifting third to fourth under load - I only really hear it when im coming up the hill to my house which is very steep - I hear the hooting noise.
Gearchanges are generally notchy/rough. Theres often a clunk going into first when you slow to a halt.
My description makes it seem a bit worse than it really is probably. When we got the A4 cabrio though, which has the 3.0 tdi and the same gearbox, its silky smooth, like you might imagine rolling naked in marscepone cheese would feel like. There is a huge difference in the quality of the drive as a result.
Clearly the most likely fix to my gearbox is an oil and filter change. The car actually came with a new filter. The PO was gloing to have the oil and filter changed himself.
The advice I'm looking for however: The car is a 2003 4.0tdi with around 135k on it. My assumption is that it is still on its original oil as the fairly substantial pile of reciepts that cae with it don't ever mention it. Would I be as well having the oil changed for the same stuff, which I can get very cheap (My old man works at a trade only motor factors so I use his very substantial discount) and have the sump dropped, filter changed and the oil refilled, the same as I would have done on the 5hp19, or is a full flush required?
Alternatively, should I go for the new style blue oil and full flush, which would mean a trip to glasgow, software update and vast amounts more money?
Obviously my preference is for the cheaper option of replacing the oil like for like. I'm not sure if my local(ish) autobox specialist has a flushing machine though if it required a full flush. If this option wont do anything or will significantly reduce the life of the 'box though I suppose I'll just have to suck it up.
I don't know a great deal about this gearbox, so all advice is as always, gratefully recieved.
gill
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