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Dunnymel

New Member
Hi
I have a D4 2012 2.7L TDV6
Purchased new, now has about 165000km on the clock, have had no hassles (that weren't caused by off-road punishment).
At a recent service the mechanic recommended we schedule in a torque convertor replacement in the next month, however the vehicle seems to be running fine.
It is essentially a 'Mum's taxi' most of the time. My wife deals with the servicing and despite being highly intelligent she is (and would come across as) totally clueless about these matters, and would never ask questions, so I'm a bit wary of over-servicing.
Is this a part that might need replacing based on results of engine testing at a service, but not be evident to the driver?
Consequences of ignoring the advice?

Thanks!
 
On what basis did he recommend the torque converter change if it's still driving and going through the gears like it was when you first got it?
 
He reckons he can feel shuddering on the test drive. Estimated 2500 AUD (about 1400 GBP) to replace.
Drives fine to as far as we can tell.
 
Dunnymel said:
He reckons he can feel shuddering on the test drive. Estimated 2500 AUD (about 1400 GBP) to replace.
Drives fine to as far as we can tell.
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Has the transmission oil ever been changed? Has it been on diagnostics?
 
If it shudders you need a TC.
Should feel it at change into top gear/gears or at standstill I believe.
Change the gearbox oil and ensure the fuid is good. If its not good it may be the TC.
Trouble with fluid condition is it could be the gearbox not the TC causing it too.
 
Main speed for tc shudder is low to middle town speeds ie 30/35mph and you can accelerate through it, alomst feels like the road is rough.

He may well be right, but a cheaper alternative is a double flush of the tc oil and if it improves matters run it and see how long before the judders come back.
 
It's about the right distance for the TC clutch to begin to show signs of shuddering.

You will get some more distance out of the TC by giving it a fluid change and adding a couple of tubes of Dr Tranny's Shudder Fix. However if you're planning on keeping the vehicle for its entire life, then having the TC replaced is the best course of action to take. Dr Tranny's Shudder Fix will keep it shudder free, while you contemplate what to do next. ;)
 
Thanks chaps!
Ashamed to say I'm not sure what has been done re servicing except it has had all scheduled logbook services, done by a reputable independant LR place. I've just checked the log book, it has been serviced every 10-12000km which appears to be more frequently than recommended (every 24000km), but minimal details particularly since 100000km when the log book ran out of pages and they started scribbling on + stamping the back cover.
The main issue is I can't feel a shudder but the mechanic reckons he can, thats the dilemma. I guess it comes down to trust.
You raise a good point Nodge68. Yes, hoping to keep it until end of life. When approximately is that for a TDV6 2.7?
My plan if I can't feel a shudder next time I take it for a run, is to get another guy to do the next service, see what the report is.
 
There's a test for the TC clutch.
Idle, put into gear with foot hard on the brake and rev hard for 2 secs (no more).
The revs should peak at 2.5/3k, if higher clutch issue causing shudder.
 
Dunnymel said:
The main issue is I can't feel a shudder but the mechanic reckons he can, thats the dilemma.
Click to expand...
It's very obvious if the TC clutch is shuddering. You'll notice it as the engine speed drops, a few seconds after the gear change. So if you can't feel the shuddering, then IMO it's not shuddering.
Dunnymel said:
You raise a good point Nodge68. Yes, hoping to keep it until end of life. When approximately is that for a TDV6 2.7?
Click to expand...

The vehicle is very long lived, although there are some issues known to affect the TDV6. The crankshaft can fail suddenly, with little warning. This is appears to be completely random, affecting some engines, generally before 100K miles is reached. On the whole, engines that make it last 100K, tend to go on for another 100K + without a problem. It's not uncommon to see D3s with 250K miles or more sill running perfectly well. I sold my own D3, 3 years ago on 176K miles to a local chap, and it's still running just fine at over 200K.
 
The ZF6HP26-28 isn't known to just start shuddering out of no where.

The transmission is very long lived if maintained, if it hasn't been serviced that still doesn't cause premature TC wear usually the Valvebody solenoids start to play up first E:G Delayed changes between gears, slurred changes.


Check the gearbox oil

Has it ever been serviced? ZFlifegard 6 is the only fluid and substance to be used in this gearbox

If so have they used the correct fluid?

What the T/C stall like? do you have to give her some beans to initially get her going?

Do you feel the shudder?

The ZF service procedure is in my Sig if you need it, the transmission should be serviced every 60k
 
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