D2 autobox shudder issue (maybe)

My son is having a bit of a issue with his D2 Td5 in the past week. I haven't been out in it yet but was wondering if anyone could offer some advice. All I can do is check propshafts really and change the gearbox oil.

"In the last couple of days, if accelerating hard (e.g. pulling out a lay-by onto a dual carriageway) I have noticed a shudder when the auto box is changing gear on my Td5.

The shudder only happens when accelerating hard from a stand still when it changes each gear (using the pulling out of a lay-by example). Normal driving is fine (normal Td5 driving!) and if you are driving along at 20mph upwards for example and then boot it hard, it will kick down and change gear as normal, no shudder and change gear fine all the way up to 70mph. Its just from a standing start it shudders through each gear change when pushing hard.

I have only noticed this in the last few days (30c outside temperature), not something I've noticed before. Could it be heat related (transmission oil temp)?

No warning lights etc or errors. If the answer is that the auto box is going to blow up soon then I'd rather not know. :lol1:

Any ideas?
In addition, what is the recommended interval for changing the auto box fluid?"

You should change the oil and filter as first move and go from there... according to the official maintainance schedule you have to renew the autobox oil and filter each 24K miles or 24 months... i'd change it more often if it was mine

to do it well drain and refill once go for a few miles drive as to make it change the gears several times then drain and refill again and change the filter too... this way you'll have about 80% refreshed oil, if you just drain and refill once it's less than 50% new

sierrafery said:

You should change the oil and filter as first move and go from there... according to the official maintainance schedule you have to renew the autobox oil and filter each 24K miles or 24 months... i'd change it more often if it was mine

to do it well drain and refill once go for a few miles drive as to make it change the gears several times then drain and refill again and change the filter too... this way you'll have about 80% refreshed oil, if you just drain and refill once it's less than 50% new

Click to expand...

Yes will do that, mineral or synthetic atf?
I am thinking it maybe temp related as its only happened this past week, coinciding with the first hot weather this year. Took it out this evening and it was fine and the weather was a good 10⁰ cooler. Don't think the Foxwell will read gearbox temp.

Nothing will read gearbox temp as there's no sensor for that... the box would get hotter with worn oil and full filter anyway, i'd use Dexron III synthetic if i was you

Drained and refilled the oil today, made a big difference. The gear change is barely noticeable now.
Will change it again and fit new filter next weekend.

Well, the filter change didn't go to plan. Whoever changed it last time must have done the filter torx screws to 80nm rather than 8nm!
In the end I wasn't brave enough to try anymore, one of them I could move back and forth a couple of mm, the other one didn't move at all. It felt it would break or round off the head or even strip the thread. Put the sump back on and refilled again, bit annoying.

Hi, that's a bug#er, how many miles has it done ?
When I picked mine up within a mile the auto box oil temp light came on (Faulty switch) but I changed filter & (oil twice) just in case. Filter looked good but the (filter) o-ring had been sliced in two by whoever did the last change. Not sure if the bolts have thread lock on them which always gives that 'is it going to snap' feel, perhaps someone else can remember? (mines not due for another 6,000 miles) .

About 110,000 miles I think.
Service history suggests it was changed around 35,000 miles.
It was one of them situations where you don't want to give in but it would be a pain if it broke just for the sake of changing the filter.

Andy Warren said:

Hi, that's a bug#er, how many miles has it done ?
When I picked mine up within a mile the auto box oil temp light came on (Faulty switch) but I changed filter & (oil twice) just in case. Filter looked good but the (filter) o-ring had been sliced in two by whoever did the last change. Not sure if the bolts have thread lock on them which always gives that 'is it going to snap' feel, perhaps someone else can remember? (mines not due for another 6,000 miles) .

Click to expand...

When I did mine no thread lock and came undone easy. and I think I was the first person in there.