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Sandyt



Member Since: 07 Nov 2013
Location: Wraysbury Windsor
Posts: 2265

United Kingdom 2007 Range Rover Supercharged 4.2 SC V8 Buckingham Blue
4.2 SC Gearbox fault update Update 14 Jan

Gents just to keep everyone up to date I had a new gearbox in my 2007 4.2 in August this year since then have done 9000 miles . Went back to stealers today and went out with Steve their workshop manager - top bloke - for test drive the result is it is going in next tuesday for evaluation symptoms thump on changing up at low speed also holding gear after acceleration and foot taken off throttle. They are also going to look at the whole drive train to see if there is any abnormal wear so we may be in for another gearbox as he thinks it is a failing solenoid. The reason for doing it now is that the LR warranty runs out at end of Feb albeit the new gearbox is under JLR warranty so we shall know more next Tuesday

Right so she went in to stealers and they checked out transmission all bushes bearings diffs the lot for any movement and play and reported back not a bit of movement all in fine working order so the clunk etc from gear change is not taking up slack in transmission so going in on Monday next to have adaptions reset and some test drives they have sent the telemetry to JLR and ZF so we shall see AND the best bit when I asked for a bill they said nothing to pay and Monday will be free too Thumbs Up Thumbs Up and got it washed yippee
will keep everyone updated as we go

Post #303427 7th Jan 2015 4:43pm
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Sandyt



Member Since: 07 Nov 2013
Location: Wraysbury Windsor
Posts: 2265

United Kingdom 2007 Range Rover Supercharged 4.2 SC V8 Buckingham Blue

See above for the 14 jan update

Post #304912 14th Jan 2015 6:54am
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pld118



Member Since: 25 Mar 2013
Location: Bairns
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Scotland 2014 Range Rover Vogue SDV6 Santorini Black

Good service Sandy. Not cheap for LR warranty but our experience has been a lot of good will from the dealer to accompany/ support the LR warranty, almost like an acknowledgement that a premium has been paid and that loyalty counts for something.

Thumbs Up

Post #304915 14th Jan 2015 7:13am
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stan
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interesting about the gearbox adaptations, i wonder what it actually does... ... - .- -.




Y. O. L. O.
.

Post #304919 14th Jan 2015 7:34am
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Sandyt



Member Since: 07 Nov 2013
Location: Wraysbury Windsor
Posts: 2265

United Kingdom 2007 Range Rover Supercharged 4.2 SC V8 Buckingham Blue

Have to say the Stealer has been very good and offers discounts on service rates to returning customers still a bit more expensive but I always get a courtesy car.
I will ask the service manager about the software changes they are going to make and report back on the effect this has on the gearbox if any Thumbs Up

Post #304943 14th Jan 2015 10:23am
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stan
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thanks sandy Thumbs Up


i wonder if this can be done with the iidtool, anyone know? ... - .- -.




Y. O. L. O.
.

Post #304948 14th Jan 2015 10:26am
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Sandyt



Member Since: 07 Nov 2013
Location: Wraysbury Windsor
Posts: 2265

United Kingdom 2007 Range Rover Supercharged 4.2 SC V8 Buckingham Blue

Yes think it can but be careful read of someone who reset theirs to factory settings and it was rough as you like as it had adjusted to compensate for wear but sure someone else maybe Phil would be able to tell us

Post #304955 14th Jan 2015 10:36am
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Cam-Tech-Craig



Member Since: 03 Aug 2011
Location: Gloucestershire
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England 2015 Range Rover SVAutobiography SDV8 Loire Blue

stan wrote:
interesting about the gearbox adaptations, i wonder what it actually does...



Simply clears the memory Stan... Kind of like a ctrl/alt/del for your gearbox sir... The gearbox runs on a rolling 75 mile memory, what they are saying is... If the gearbox has picked up some rouge information and memorised it, clearing the adoptions may start a fresh...

Post #304957 14th Jan 2015 10:41am
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Cam-Tech-Craig



Member Since: 03 Aug 2011
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England 2015 Range Rover SVAutobiography SDV8 Loire Blue

Sandyt wrote:
Yes think it can but be careful read of someone who reset theirs to factory settings and it was rough as you like as it had adjusted to compensate for wear but sure someone else maybe Phil would be able to tell us


Very good point you make Sandy... If you have a high milage car, change the gearbox fluid & reset the adaptions! Then you will probably be asking too much of the electronics to learn... Basically, as the gearbox wears and the fluid wears the gearbox learns ever so slowly the differences... Changing the fluid is quite a big change for an adaptive gearbox on its own... Throw in an adaptions reset as well & I'm afraid its a recipe for disaster!

Post #304960 14th Jan 2015 10:47am
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stan
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so i suppose 'if it aint broken dont fix it' then craig.. ... - .- -.




Y. O. L. O.
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Post #304966 14th Jan 2015 11:02am
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Sandyt



Member Since: 07 Nov 2013
Location: Wraysbury Windsor
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United Kingdom 2007 Range Rover Supercharged 4.2 SC V8 Buckingham Blue

Aha Craig that makes sense and is probably what happened to them. I know with my old gearbox they did a double flush and refill and it made a hell of a difference - didn't cure the thumping gear change problem but it did improve the overall performance I was quite surprised at the change and as you say both together for a leggy box might be too much

Post #304969 14th Jan 2015 11:04am
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Cam-Tech-Craig



Member Since: 03 Aug 2011
Location: Gloucestershire
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England 2015 Range Rover SVAutobiography SDV8 Loire Blue

Well........ Shall we say, a little knowledge can be a bad thing sometimes Stan Whistle Given the tools to do a job and a lack of understanding/knowledge can be a very bad recipe!!!

Post #304972 14th Jan 2015 11:07am
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stan
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looks like you just described me.. Shocked















Mr. Green Wink ... - .- -.




Y. O. L. O.
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Post #304983 14th Jan 2015 11:31am
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markcaughey



Member Since: 03 Nov 2014
Location: Glasgow
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Scotland 2006 Range Rover Vogue 4.4 V8 Buckingham Blue

Craig what would you consider high millage ? I have a zf 6 speed that I am considering having the fluid changed. Car has 90k on the clock and the box runs great I do some times get the rollout thud when creeping up to a junction or roundabout but to be honest I think my diving has adjusted as it doesn't happen much anymore. Range Rover Vogue 2006 4.4 AJV8 | Buckingham Blue | Parchment Leather | Supercharged Grill+Side Vents | CA02 HEY ( NOT 02 PLATE )

Post #305057 14th Jan 2015 2:39pm
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