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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324  
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What you can turn off on the dash is the electronic stability control that was fitted to the last year or so of production, although it uses some of the same hardware.
Something similar to your problem was described on here recently and the suggestion was that the steering angle sensor needed to be calibrated (or was faulty). This can only be checked and done with a decent diagnostic tool such as the IID. Darren 110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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21st Nov 2020 3:24pm |
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| Martin Site Admin Member Since: 02 Apr 2007 Location: Hook Norton Posts: 6605 
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My 15MY 90 with DSC is the same, speed bumps trigger the DSC. I either slow down a bit, or knock the DSC off if I remember.
 1988 90 Td5 NAS soft top
2015 D90 XS SW |
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21st Nov 2020 7:03pm |
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| Matt110 Member Since: 29 Jun 2014 Location: UK Posts: 683
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Its a side effect of having DSC on such a short, and such a high CofG vehicle. The braking interventions needed to stabilise the vehicle as it starts to generate slip are required both quickly and to a much higher level than in say a normal saloon car. Therefore you naturally generate sensitivity to more normal road events where similar vehicle level inputs are seen even if only briefly.
I suspect the inputs to the intervention for the beginnings of a slip condition are being generated by the speed bump. Thus it begins the intervention required for a more major slip condition, and then stops when it realises the wheel is back at stable road speed again. Only way to resolve it is to slow down over the speed bump so that the wheels remain at the same speed and don't leave the ground. You may find its worse if you cross the speed bump at an angle as it will simulate a single front wheel slip condition which very quickly generates instability. Its frustrating, but it's keeping you safe when you then find a real slip condition. edit: I really wouldn't strip the vehicle down or start investigating parts. You're more likely to cause problems than solve them. If it's working at all - it's working. It may well be a frustrating stability tune, but if it's got any inputs AT ALL that don't make sense to it it will fault and give you the code and warning light to suit. The systems are just as capable of creating issues in vehicle dynamics as they are at solving them should they have a problem, so they are very robustly error proofed whereby they will not intervene unless the inputs "make sense" to the software calibration in the module. |
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22nd Nov 2020 9:16am |
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| NMBRPL8 Member Since: 07 Jul 2015 Location: Australia Posts: 146 
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Have you tried lodging a complaint to your local council?
One of my neighbours has a hotted-up V8 Holden and evertime he leaves the house the sealed road surface is so defficient in grip that he always seems to lose traction on his rear wheels. I complained to the council but they said it was more likely attributable to the neighbour driving like a dick. Either that or slow down for the speed bumps which I presume are there for a reason. |
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23rd Nov 2020 10:02am |
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| tobyrm1 Member Since: 13 Oct 2020 Location: Bristol Posts: 6 
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Hi All,
Thanks for the replies. It seems like it is relatively normal for a Defender with traction control. I am used to my 110 td5 which doesn’t have any electronic intervention! I won’t investigate further and will just let it do it’s thing! Thanks Toby |
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25th Nov 2020 10:58pm |
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