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caverD3
Member Since: 02 Jul 2006
Location: Oberon, NSW
Posts: 6922
  
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nighthawk wrote:TT will instill Obsessive Compulsive Disorder into the EAS ECU.
Great analogy. 
nighthawk wrote:In any case, without TT mode, you will still align the car, and it will most probably drive much better than before, but it might not be 100%... maybe 95% perfect.
Good summation of results. “There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
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Last edited by caverD3 on 25th Apr 2014 9:43 am. Edited 1 time in total
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 25th Apr 2014 1:15 am |
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promitheus
Member Since: 04 Jul 2009
Location: Afidnes, Greece
Posts: 572
 
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So, if I understand correctly, the vehicle has to be put in TTM by the technician performing the alignment, right? What happens if they don't have a diagnostic unit? Does an IIDTool allow to turn on TTM?
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| 25th Apr 2014 8:29 am |
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nighthawk
Member Since: 24 Jul 2010
Location: Malta
Posts: 1163
  
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Yes IID Tool allows you turn on/off TTM.
Ideally it is done by the technician performing alignment, but if it is not available at the alignment place you can get it turned on at a dealer, drive over to the alignment place, get the alignment done, then go back to your dealer to turn it off again.
No harm will be done driving limited distances with TTM on. The only thing that will be happening with TTM on is the EAS will be working overtime to maintain correct heights. Dennis
2006 Discovery 3 TDV6 Commercial Manual Buckingham Blue
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| 25th Apr 2014 8:37 am |
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highlands
Member Since: 10 Jan 2010
Location: NW Highlands
Posts: 5103
 
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Disco_Mikey wrote:Also why you should really calibrate the suspension before an alignment
This is what I would intuitively think.
I can't see the sensors being 'that' precise without a calibration.
In the absence of TTM (or without calibration for that matter) wouldn't manually measuring the heights obviate the need for it, assuming that a couple of height changes could end up bringing it within the TTM parameters if not already? Black 05 TDV6 HSE Auto
Grey 05 TDV6 HSE Auto (Gone)
54 TDV6 SE Man (killed by me  )
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| 25th Apr 2014 9:08 am |
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promitheus
Member Since: 04 Jul 2009
Location: Afidnes, Greece
Posts: 572
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Thanks for the answer nighthawk.
So, should the car stay with the engine running during the wheel alignment for ttm to function correctly?
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| 26th Apr 2014 6:35 am |
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nighthawk
Member Since: 24 Jul 2010
Location: Malta
Posts: 1163
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Not 100% sure about this. I think that IDEALLY you would leave the engine running, but I don't think it's standard procedure.
I just leave mine with engine off and ignition on as the garage people insist on me turning off the engine.
I drive to the place, stop a few hundred meters away. Set TTM using the IID Tool, proceed to alignment place (this driving time allows the suspension to adjust and settle in tight tolerance). Following alignment just switch TTM off and job's done.
During the alignment I never noticed the suspension doing any changes (no farting from any corner). I get the feeling that it's more important that TTM is on until you drive onto the wheel alignment machine, rather than during the alignment itself, but obviously best if it's left on throughout. Dennis
2006 Discovery 3 TDV6 Commercial Manual Buckingham Blue
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| 26th Apr 2014 10:13 am |
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promitheus
Member Since: 04 Jul 2009
Location: Afidnes, Greece
Posts: 572
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| 27th Apr 2014 6:49 am |
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nighthawk
Member Since: 24 Jul 2010
Location: Malta
Posts: 1163
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Well, just had my wheel alignment done. Drove from home to the garage (3km away) with TTM on. Garage insisted I turn the engine off as usual even though I told them about air suspension etc, so again I left it just with the ignition on.
When alignment was done, I asked if I could drive round the block (still with TTM on) and back onto the ramp, a sort of friendly challenge to their insistence to turn the engine off. Well. Drove around a while, took a few aggressive corners, drove back up, all hooked up again... and still spot on and all green boxes on the computer screen 
Admittedly the alignment was already very good to start with. I just went to do it because I just changed hub carrier bushes and also had my steering a couple of degrees to the right when driving straight so wanted that fixed. Just needed some toe adjustments on all 4 wheels and a caster tweak at the front. Surprisingly the camber at the rear was spot on despite the upper and lower bush replacements.
So yes, ideally the engine is running, I think that will give best results. But having the engine off is probably OK too as long as TTM is engaged beforehand. Definitely miles better than having the engine running without TTM engaged IMO. Dennis
2006 Discovery 3 TDV6 Commercial Manual Buckingham Blue
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| 27th Apr 2014 7:53 am |
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therealboss
Member Since: 21 Mar 2014
Location: Co Carlow
Posts: 1958
 
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Man £120 is a lot, thats 145.72 Euro, I just replaced my front lower wishbones and took the D3 over to a local guy. All 4 wheels tracked and then balanced for grand sum of €50 inc Vat. Must be much cheaper here in Ireland than the UK, 99.9% of the stuff for Land Rovers cost much more here in Ireland than in the UK.
Pleased I have found something cheaper here in Ireland than it is in the Uk for a change. Dale
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| 27th Apr 2014 8:40 am |
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Biker Pete
Member Since: 23 Jan 2014
Location: Gateshead
Posts: 513
 
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£74.95 +vat seems to be the going rate up here in the North East.
I know this as I have had to have it done twice this year 
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| 5th Aug 2014 10:23 am |
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davidedwardmawer
Member Since: 11 Oct 2012
Location: Gironde
Posts: 174
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| Wheel alignment geometry with spacers |
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Can anybody advise if (25mm) spacers will interfere with a wheel alignment / geometry set up? Have some new ones to put in but wondered whether to do it when tyres fitted or after geometry sorted?
Thx, 33370 Fargues Saint Hilaire
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| 26th Aug 2014 4:32 am |
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