koe
Member Since: 28 Feb 2009
Location: the netherlands
Posts: 11
 
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| Drive car betweens flushes (gearbox double flush)? |
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Hi,
I want to doubleflush my gearbox today.
Do I just drain te oil, fill it up again, and do the same again?
Or do I need to drive the car between te flushes?
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 29th Oct 2009 7:05 am |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
 
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You need to start the car to push the old oil out of the system after the first empty/re-fill, but you don't need to drive it to do that. Maybe just leave it in gear for a minute or so (with your foot on the brake obviously)  Bodsys Brake Bible
D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling
Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here
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| 29th Oct 2009 7:15 am |
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stapldm
Member Since: 11 Sep 2006
Location: Swine Town
Posts: 2330
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On previous (lesser) gearboxes when doing the double flush, it was recommended to slowly move through the gears with the engine idling i.e. R N D 4 3 2 1 2 3 4 D N R N D 4 3 2 1 with 30 seconds in each gear. This ensured that each of the labyrinth channels in the control block were flushed along with each associated control valve. This is a good thing as the new oil is like a solvent and excellent for stripping out varnish and residue left by the old oil, so it's nice to do that with the oil that's coming back out rather than the second lot of oil you leave in.
I don't know if this is possible in this car without it moving though; just 'cos you command shift into 5th whilst stationary doesn't mean it's in 5th mechanically, it just means you've asked for 5th and the 'box will do that when the parameters are right for it to do so without damage. Ever tried shifting into reverse whilst still travelling forwards (at idle) ? If you're going above about 2MPH it simply won't engage and you'll keep moving forwards until you slow down. Tap the brake to slow, or wait until friction slows you and it'll engage. The display still says R throughout this.
Does GTR have any further advice, or is there a manual valve control screen on the dealer diagnostics that can flush the labyrinth?
One for our resident site super-techs I think? Dr. Ian Malcolm:
"Yeah, but your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should."
Transgenic tomato anyone?
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| 29th Oct 2009 7:44 am |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
  
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you also need to make sure the gear oil is below 30c before you drain.
Double flush procedure :
Confirm transmission oil is below 30c
Drain & refill
Run engine with gear selector in "P" for 3mins at 1750rpm
Stop engine, confirm oil temperature is below 30c before draining
Refill Duncan
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If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide
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| 29th Oct 2009 8:05 am |
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DingMark
Member Since: 14 Sep 2007
Location: Perth Oz or Erbil, Iraq
Posts: 388
 
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Gee, we'll have to wait for 6 months here to get the transmission to cool below 30C  Jim Dowell - D4 HSE TDi, 12,000 hydraulic winch & hidden winch mount, MTRs, TyreDog, Traxide 2 x aux battery system, fixed air compressor, Dolium roof rack, MitchHitch.
RIP 2005 D3 HSE V8 5 seater gold (stolen and torched)
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| 30th Oct 2009 5:25 am |
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koe
Member Since: 28 Feb 2009
Location: the netherlands
Posts: 11
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thanks!
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| 30th Oct 2009 6:37 am |
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Bodsy
Site Sponsor
Member Since: 06 Nov 2006
Location: In the Clubhouse
Posts: 21361
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I like Doms version as I can see the logic in getting rid of more of the older oil, but it may be that the d3 gearbox effectively does that by itself in clearing all the channels? Bodsys Brake Bible
D4/D3 Remote FBH heat kits
BAS Remaps/ EGR Blank
Transmission Flush
Software updates/enabling
Clock/ SNOTM /3Flash / 4x4Info /BT Update /Service Reset/Error Codes / Gearbox Reset
See It Here
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| 30th Oct 2009 9:00 am |
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jjvd21
Member Since: 16 Jul 2007
Location: Chicago
Posts: 1070
 
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Is there any immediate improvement following the gearbox flush? What do you notice that's different? 16 D4 Landmark
05 D3 HSE V8
THE original D4 spotter
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| 30th Oct 2009 10:31 am |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
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the juddering you have will go away Duncan
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If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide
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| 30th Oct 2009 11:52 am |
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thorgal
Member Since: 26 Nov 2008
Location: on the east side
Posts: 541
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So the whole info in manual , saying that auto tranny is sealed for life not true?/????  
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| 31st Oct 2009 1:51 am |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
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Same for the locking rear diff - it says its sealed for life but as you are responsible for the fluids in the car if it fails beacuse the fluid has degraded then not covered under warranty  Duncan
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If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide
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| 31st Oct 2009 8:22 am |
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DG
Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50977
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I would think Dunc that you are right for 'user serviceable' fluids but as units such as the gearbox and diffs are designed to be SFL then your responsibility under warranty is only to report any perceived fault to your servicing dealer 21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
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| 31st Oct 2009 8:45 am |
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DiscoDunc
Member Since: 08 May 2006
Location: Bristol
Posts: 16390
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Not what my dealer said though. I asked about them checking the diff fluid - service reception said Sealed for life but the service manager happended to be passing and disagreed - he said if the diff failed and LR could prove it was due to bad fluid then no warranty. 
Given all the water, mud and sand wading I have done I changed the oil myself. It certainly wasnt as clean as the oil i put in.. I came to the conclusion that it was worth doing just incase - the hassle I may have got and the cost, if the diff had failed wasnt worth it.
But it all went to waste anyway as 6months later the halfshaft seals failed and it was done again, out of warranty at £20 per litre This time the oil was brown Duncan
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If I'd known I was going to be so thirsty this morning I'd have drunk more beer last night.
FFRR Autobiography 4.4 SDV8 MY17
D4 HSE MY13 SOLD
FFRR 3.6 Vogue TDV8 SOLD
D4 HSE MY10 SOLD
D4 SE TECH MY15 SOLD
D4 XS MY12 SOLD
D4 HSE MY10 SOLD
D3 HSE MY06 - Re-Cycled Worldwide
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| 31st Oct 2009 8:59 am |
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thorgal
Member Since: 26 Nov 2008
Location: on the east side
Posts: 541
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Although i changed all my DIFF. fluids and T-case not a long a go,at 70.ooo miles, my manual says:
Diff.oil needs to be changed at 120.000 KM(75.000 miles) or 60 monts.Says nothing about" sealed for life"
T-case oil -same as Diffs.
Transmission fluid-every 10 years which in my case might mean sealed for my life since I drink booze every day.  
Every time i ask My indy mechanic regarding tranny's fluid change , he looks like me like that and says that we should not touch that unless is   and it is very complicated, you have to watch for certain temp. and recheck and recheck and.....  .why is it so complicated that i should not touch that at all?/?
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| 31st Oct 2009 2:13 pm |
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caverD3
Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922
 
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Sealed for "life" is the "life" of the warranty. “There 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.
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| 1st Nov 2009 7:17 am |
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