DISCO4.COM - View topic - Clunking and thud from driveline (D4)

JeffD4

Member Since: 25 Dec 2009
Location: Perth, Western Australia
Posts: 77

2010 Discovery 4 3.0 TDV6 SE Auto Alaska White

Clunking and thud from driveline (D4)

My D4 Has now done 50K and in the last few thousand has developed a clunk or thud through the driveline. I can reproduce on a flat road by taking foot off (sometimes that alone produces a thud) then when reapplying power get a thud which feels like it's coming from the centre underneath (transmission). Rocking the foot on and off the power produces the thud at will. Took it to a Perth dealer who drove it and claims it is normal and that this is what D4s do.

Has anyone else out there had this experience? I have done about 16K of towing. Any thoughts appreciated.

Land Rover Series IIA 1967
Discovery 300 Tdi 1998 (white, ARB bullbar, suspension lift, roof rack, Lightforce spots etc)
Discovery 4 3.0 Litre White, e-diff

10th Mar 2012 5:40 am

B16 KJR

Member Since: 10 Jul 2006
Location: Rosyth, Fife
Posts: 3005

Torque converter locking/unlocking ?

10th Mar 2012 10:56 am

JeffD4

Member Since: 25 Dec 2009
Location: Perth, Western Australia
Posts: 77

Thanks, am tackling the dealer again this week and will raise this

Land Rover Series IIA 1967
Discovery 300 Tdi 1998 (white, ARB bullbar, suspension lift, roof rack, Lightforce spots etc)
Discovery 4 3.0 Litre White, e-diff

10th Mar 2012 11:45 am

caverD3

Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

2012 Discovery 4 3.0 SDV6 SE Auto Fuji White

Get them to check the rear driveshaft centre bus/bearing there was an issue with early D4s where the bracket would fail TSB for it (recall in UK) Put another bracket over the top if not broken if broken then new.

â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

10th Mar 2012 9:40 pm

JeffD4

Member Since: 25 Dec 2009
Location: Perth, Western Australia
Posts: 77

Shall add that to the list. Mine is a Jan 2010 build and I thought they had that problem sorted by then

Land Rover Series IIA 1967
Discovery 300 Tdi 1998 (white, ARB bullbar, suspension lift, roof rack, Lightforce spots etc)
Discovery 4 3.0 Litre White, e-diff

11th Mar 2012 10:05 am

relikade

Member Since: 18 Oct 2012
Location: Hertfordshire
Posts: 238

2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway Grey

I know this is an old thread but did you sort this out, mine is doing the same at 60k and dealer also says its normal

10th Jun 2013 9:12 pm

wiggs

Member Since: 03 Sep 2006
Location: Manchester
Posts: 14372

2015 Discovery 4 3.0 SDV6 HSE Auto Fuji White

Same here ..65,000 ( although iv had it for a while )

Normal according to my dealer too

G4 Gone ...but not forgotten

10th Jun 2013 9:30 pm

relikade

Member Since: 18 Oct 2012
Location: Hertfordshire
Posts: 238

Im sick and tired of all the issues i have that are "normal" the wife will get her way soon and get a Touareg

10th Jun 2013 9:36 pm

caverD3

Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Might a transfer case calibration help? â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

10th Jun 2013 9:54 pm

caverD3

Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Mmm...Volkswagen:

Not exactly flavour of the month here; really messed up on this one.

http://www.bordermail.com.au/story/1558582...re-to-act/

http://theage.drive.com.au/motor-news/volk...2nszv.html

http://www.caradvice.com.au/233811/volkswa...ab=gallery

LR Oz did similar with the oil on servo and the HP fuel pump recalls; more than two years after they had recalls overseas.

â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

10th Jun 2013 10:13 pm

JeffD4

Member Since: 25 Dec 2009
Location: Perth, Western Australia
Posts: 77

Not resolved, just learned to live with it. Though the dealer did tell me about a month ago that LR Australia are aware of the "problem" and are trying a few fixes. One thought is the transmission fluid may not be totally suited to our hot climate while there is some other theory about the torque converter. I got sick of it in the end and gave up coz overall I still have a great car. My wife has a VW but that's another story!

Land Rover Series IIA 1967
Discovery 300 Tdi 1998 (white, ARB bullbar, suspension lift, roof rack, Lightforce spots etc)
Discovery 4 3.0 Litre White, e-diff

11th Jun 2013 11:59 am

JeffD4

Member Since: 25 Dec 2009
Location: Perth, Western Australia
Posts: 77

Hi Caver, would recalibration of the main transmission also do the transfer box or are they all together in an integrated unit? I ask because I have had the transmission recalibration done and made no difference.

Land Rover Series IIA 1967
Discovery 300 Tdi 1998 (white, ARB bullbar, suspension lift, roof rack, Lightforce spots etc)
Discovery 4 3.0 Litre White, e-diff

11th Jun 2013 12:02 pm

caverD3

Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Different I think. Transmission (auto box) calibration as I understand it just resets the adaptive shifts to factory settings.
Needs Faultmate, Autologic or IDS. â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

11th Jun 2013 12:40 pm

JeffD4

Member Since: 25 Dec 2009
Location: Perth, Western Australia
Posts: 77

Well, just had the transmission mega flush, hoping that it might improve the clunking. Have now set up chain reaction of problems. Since flush box has let me down twice with loss of drive when selected, locking me out of reverse and locking into park. Error code is "P0798 Pressure control solenoid C electrical". DTC indicates possible fix is new TCM. Just taken it back to trans shop and they have agreed to replace the solenoid at their cost. The only thing that went wrong during flush is that ZF allegedly supplied a distorted filter which caused problems when they put it back together. Apparently with the filter and pan change on the D4 the new filter has to go right up in the valve block with limited tolerances. Am hoping now they don't disturb anything else changing the solenoid as am supposed to be headind to the NW on the weekend. Anyone else had problems withs trans solenoids (e.g. a known fault?) or TCMs?

Land Rover Series IIA 1967
Discovery 300 Tdi 1998 (white, ARB bullbar, suspension lift, roof rack, Lightforce spots etc)
Discovery 4 3.0 Litre White, e-diff

17th Jun 2013 1:22 am

caverD3

Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922

Sounds like they cocked up somehow.

Make sure they repair properly at their cost and warranty the repairs.

â€œThere are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.

17th Jun 2013 4:10 am