D4 transmission clunk

[boranup]

I get a clunk in my transmission - my D4 has done 12000km and was picked up November this year. It happens most when I come to a corner I slow down, negotiate the corner then accelerate "clunk" she goes.

Is this a common problem?

I havent had a chance to chase this up with the dealer yet as I was only home for a quick period of Xmas but hope to do so on my next break.

Absolutely loving the car, just a couple of minor glitches like this.

Cheers
Lance

[Neil P]

.......... would give you enough to read until Easter .................

[WhiteD3]

This was a common problem in the D3 (I had it) which was mostly fixed with a software patch. I don't recall anyone with a D4 having the problem and I don't for sure.

[Robocop]

I was going to do a google search on this, my D4 has 10,500km on the clock & I've also noticed it. The heaviest thing I tow is my 6x4 box trailer with rubbish to the tip, but I only notice the noise on & off the throttle at low speeds.

The clunk sounds very similar to the driveline clunk I had in my defender before I changed the rear axles. I hope it's not anything like that I doubt it would be as easy to change & as cheap!!

[Stuart02]

I just figured a bit of driveline slack must be normal? Mine's done about 24000 km...

[Robocop]

I've only had experience with worn axle splines, do the CV shafts even wear like that?

[Celtoid]

2009 D4 SE.....I've had it from new, comes on when I've been giving it a bit of welly and then back right off.

50K now on the clock and hasn't got any worse.

Happens rarely.

Cheers,

Kev.

[Rockylizard]

Gday...

My mate's experience -

· Last week (mid-October 2011) while driving to Melbourne, I had to go off the freeway into Morwell (after about 100km on highway that morning). As I slowed down there was a distinct “clunk” and a shudder through the car. Rolling the throttle on and off, very gently, repeated the clearly audible noise and a shunting that could be felt – definitely something loose between the crankshaft and the Rims! Fortunately this happened within 500m of the only Land Rover dealer in Gippsland, otherwise, I would have been stuck and the D4 would have been on a tow truck again. In this short distance, the shunting and the noise became worse. After a very short demo drive with the Service Manager, the D4 was put up on the hoist and the front mount on the rear diff was tightened. From the Service Manager's feedback, this Nut/Bolt was never tightened during assembly and hence had taken 25,000km (purely road driving) to work its way out from Finger tight and in the next 100km had worked to be almost fallen off. Fortunately this didn’t happen in a month’s time when I’m going into Wonnangatta (although after this experience, I’ll revert to a day trip on the KTM!). The Dealer was very helpful and had me on the road in about an hour, although the breakdown caused me to miss a meeting in Melbourne and delay a flight.
Just for interest concerning "Clunks" in D4 driveline.
Cheers
John

[Robocop]

Christ could it be that simple?? Sounds like the oil pump gear issue I had to fix on my Td5 with lack of loc tite on the bolt from the factory.

[CaverD3]

There was a TSB for D4s for the centre bearing mount in the rear driveshaft. Fix was new driveshaft if broken, if not a reinforcing bracket over the top.

[Robocop]

What's a TSB?

[CaverD3]

"Technical Services Bulletin"
Issued by LR on topix.
Usually starts "chould a customer complain"

Early model D4s.
Get dealer to check the bracket

[Celtoid]

There was a TSB for D4s for the centre bearing mount in the rear driveshaft. Fix was new driveshaft if broken, if not a reinforcing bracket over the top.

Oh!

When did that come out?

I'll have to pay attention now, cause I can't remember the last time my car did that....maybe it got sorted at the last service! :confused:

I had a few transmission issues at one point which were finally fixed by the 'correct' download being installed....

So maybe that (the clunk) was sorted then too.

I'll let you know.

Cheers,

Kev.

[CaverD3]

Very ealy models I think.
On Disco3 but couldn't find it but remember seeing the doc.

[boranup]

Seems it may have been fixed by a reload of the software?? Will be able to make an informed response in a week or so I am guessing.

Fingers crossed

[Ozzy119]

Hmm - I think I get the same 'clunk'. D4 with about 16,000Km's. Really only notice it after slowing down to take 1st exit off a mini roundabout very near home. After turning the corner and putting foot back on the power, wheels are still straightening out from the turn, I hear and feel a clunk somewhere in the driveline.

[Robocop]

I tried explaining my clunk on the D4 at first service & they basically told me it was in my head.. Still nothing like the driveline backlash I used to get on my Defender.

[brad72]

Yep, I get the clunk and have done for a long time. Usually when pulling up to a roundabout and taking off before I have come to a complete stop. I have the MY11 D4 2.7

I got my dealer to check it out and they can hear it but wanted to put the chassis ears on ( microphone) to pinpoint the main location but they were broken so it will be done next service.

Personally I think it is just drive-train backlash. If you put you car into off-road height and hop underneath below the centre transfer case you can move the front and rear prop shafts independently of each other quite a bit a bit (well more than I would expect being a mechanical engineer)

The noise hasn't got any worse and has been there since about km 5,000 and the car now has 35,000 on it.

[scarry]

Mine has it to,MY12,done 1.8k,so obviously hasn't been sorted,seems to do it under acceleration after slowing down,say at a roundabout for example,and then taking off,it will do it ocasionally,even if you accelerate slowly.

I recon it is the auto,will get it checked at the first service.......pr0bably just get the run around though

[boranup]

Clunk still there - not as bad but there none the less - 10k to first service - fingers crossed there looking at some of the posts about getting it fixed :eek: