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2010 D4 suspension fault when lowering
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F355GTS
 


Member Since: 10 Nov 2008
Location: North Hampshire
Posts: 849

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Buckingham BlueDiscovery 4
2010 D4 suspension fault when lowering

Hi getting a yellow suspension fault warning when lowering from normal to access height and car stops lowering, not always fairly common and seems to be getting worse

IID shows error C1A13-64 (2C) Pressure does not decrease when venting gallery - algorithm based failure

Restarting the car resets the fault and shows the height position between normal and access and a press of the button will return it to normal or access as chosen


Any ideas?


thanks


Mark
 Mark  
Post #195440716th Jun 2018 9:39 am
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Skynet
 


Member Since: 23 Jul 2014
Location: Melksham, Wiltshire
Posts: 868

United Kingdom 2016 Discovery 4 3.0 SDV6 SE Auto Alaska WhiteDiscovery 4

Check nothing is blocking the vent pipe? Perhaps consider buying a service kit for the compressor?
 Dave
D3 2006 HSE, Cairns Blue - gone
D4 2016 SE, White

Wessex 4x4 Response
http://www.wessex4x4response.org.uk/ 
 
Post #195444416th Jun 2018 12:43 pm
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F355GTS
 


Member Since: 10 Nov 2008
Location: North Hampshire
Posts: 849

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Buckingham BlueDiscovery 4

Hi could somebody point me to where I will find the vent pipe so I can check it's not blocked Thumbs Up


thanks
 Mark  
Post #19718278th Aug 2018 9:21 am
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F355GTS
 


Member Since: 10 Nov 2008
Location: North Hampshire
Posts: 849

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Buckingham BlueDiscovery 4

OK checked the vent pipe and no obvious blockage, blew it out with a airline too.

Sometimes it'll start to lower then thinks there is something under the car so switches to extended mode, can somebody advise me what triggers the car to think there's something underneath?

If I lower the car using the IID tool it seems to work fine but now fails on lowering most times via the switch even after a restart

Any and all advice welcome as to the next step

thanks
 Mark  
Post #197519618th Aug 2018 5:00 pm
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DiscoJeffster
 


Member Since: 27 Feb 2016
Location: Perth
Posts: 204

Australia 2010 Discovery 4 3.0 TDV6 HSE Auto Nara BronzeDiscovery 4

As I understand it it’s expecting to see each height sensor lowering. Where one doesn’t change as the vehicle drops it believes it’s obstructed and raises. Your symptom would lead me to suspect one height sensor is not working correctly.
  
Post #197535319th Aug 2018 10:26 am
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F355GTS
 


Member Since: 10 Nov 2008
Location: North Hampshire
Posts: 849

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Buckingham BlueDiscovery 4

I should have updated htis

The extended mode fault was caused by the height sensor units being crudded up, lot's of WD40 and freeing up has cured this. The venting problem was cured with a service kit for the air pump on the compressor, think it's the new desiccant that solves the issue

I bought this kit

https://www.ebay.co.uk/itm/DISCOVERY-3-AIR...:rk:1:pf:0
 Mark  
Post #19991379th Nov 2018 6:13 pm
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