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Air to Coil Conversion
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Samson66
 


Member Since: 17 Sep 2016
Location: Peterborough
Posts: 99

United Kingdom 2008 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3
Air to Coil Conversion

Owning a Discovery 3 can be full of pitfalls. One of them is the air suspension impressive did me well on my road trip self levelling great. BUT then a leak somewhere!!

I bit the bullet and went coil conversion I am megga impressed.






The job was not a difficult task just fiddly. I opted for standard Dunlop shocks and fitted 2" lift OME springs all round. The EAS box works fine eliminating any fault lights. The only other mod you have to do is either use iiD tool and alter ride height settings for standard height or shorten the rods as I have done (easy job) pull off the rubber caps and shorten the rods by 10mm glue rubbers back on and away you go.

The car sits and drives very well rock steady around corners, and more comfortable off road just did Peddars Way Castle Acre to Ringstead.

 iiD Bluetooth Diagnostic Tool
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!970 Petrol 109 "Samson"
1972 Diesel 88 No top half body "rat landy"
1988 110 V8 Defender
1995 300TDI Discovery Auto
1997 Camel Trophy 110 Support Vehicle P232KAC
2001 Freelander GS V6 
 
Post #188311624th Nov 2017 3:29 pm
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Glad you like it but for me it's akin to neutering. Medically effective but I'll try to be at the back of that particular line.
 Land Rover - Turning Drivers into Mechanics Since 1948

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Post #188312424th Nov 2017 3:46 pm
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Samson66
 


Member Since: 17 Sep 2016
Location: Peterborough
Posts: 99

United Kingdom 2008 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

The air is only good for towing. For serious off road trips conventional is better but only my choice.
 iiD Bluetooth Diagnostic Tool
Cambs GLASS Rep
!970 Petrol 109 "Samson"
1972 Diesel 88 No top half body "rat landy"
1988 110 V8 Defender
1995 300TDI Discovery Auto
1997 Camel Trophy 110 Support Vehicle P232KAC
2001 Freelander GS V6 
 
Post #188312824th Nov 2017 3:55 pm
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KostasA
 


Member Since: 23 Aug 2015
Location: nairobi
Posts: 286

Greece 

am hopping to do that conversion also, which springs did you use?
  
Post #188313524th Nov 2017 4:12 pm
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Samson66
 


Member Since: 17 Sep 2016
Location: Peterborough
Posts: 99

United Kingdom 2008 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Old Man Emu 2" lift Wrex Racing Oxfordshire D3DAN on here tell him I passed you onto him he will gladly quote.
 iiD Bluetooth Diagnostic Tool
Cambs GLASS Rep
!970 Petrol 109 "Samson"
1972 Diesel 88 No top half body "rat landy"
1988 110 V8 Defender
1995 300TDI Discovery Auto
1997 Camel Trophy 110 Support Vehicle P232KAC
2001 Freelander GS V6 
 
Post #188313724th Nov 2017 4:19 pm
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Sea Raider
 


Member Since: 01 Nov 2016
Location: None
Posts: 4450


Robbie wrote:
Glad you like it but for me it's akin to neutering. Medically effective but I'll try to be at the back of that particular line.


+1

Would it also affect its resale value or resale interest, I wonder?
  
Post #188314024th Nov 2017 4:23 pm
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Samson66 wrote:
For serious off road trips conventional is better...


Why is a dumb spring better for off-road use when compared to an actively controlled system?

Question
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
A not-for-profit enterprise


 
 
Post #188314424th Nov 2017 4:27 pm
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Samson66
 


Member Since: 17 Sep 2016
Location: Peterborough
Posts: 99

United Kingdom 2008 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Shocked Shocked Shocked having had both I am sure that qualifies me to compare Thumbs Up

Air shocks were for towing to satisfy the horsey brigade
 iiD Bluetooth Diagnostic Tool
Cambs GLASS Rep
!970 Petrol 109 "Samson"
1972 Diesel 88 No top half body "rat landy"
1988 110 V8 Defender
1995 300TDI Discovery Auto
1997 Camel Trophy 110 Support Vehicle P232KAC
2001 Freelander GS V6 
 
Post #188315124th Nov 2017 4:44 pm
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Pelyma
  


Member Since: 06 Jan 2005
Location: Patching, Sussex
Posts: 15496

England 

Yawn rigger booots, camp trousers and leather hat at the ready.
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Post #188315324th Nov 2017 4:54 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

Sea Raider wrote:
Robbie wrote:
Glad you like it but for me it's akin to neutering. Medically effective but I'll try to be at the back of that particular line.


+1

Would it also affect its resale value or resale interest, I wonder?


good point , maybe the new owner will have to be tall enough or use a step ladder Rolling with laughter
   
Post #188315824th Nov 2017 5:09 pm
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Sea Raider
 


Member Since: 01 Nov 2016
Location: None
Posts: 4450


I just asked because if I saw an advert with spring suspension I would discount it on that basis.
Same as the P38, loads of them converted to springs and ruined.
  
Post #188316824th Nov 2017 5:32 pm
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John P
 


Member Since: 12 Aug 2011
Location: West Sussex
Posts: 1270

United Kingdom 2006 Discovery 3 TDV6 HSE Auto Lugano TealDiscovery 3

Robbie wrote:
Samson66 wrote:
For serious off road trips conventional is better...


Why is a dumb spring better for off-road use when compared to an actively controlled system?

Question


I've often thought about converting to springs. I've been let down quite a few times with the air suspension. I been in some precarious positions, only to get the dreaded bong, and the car goes down onto the bump stops. Thank goodness I have D44 underbody protection, as the car gently comes to rest on the underbody protection. Also having the car try and self level just at the point you don't want it to.
  
Post #188317024th Nov 2017 5:44 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

hi Graham

agreed , i also wonder how insurance companies feel if it’s not as per manufacturers specifications

ie , braking , cornering , steering etc
  

Last edited by gstuart on 24th Nov 2017 5:45 pm. Edited 1 time in total 
Post #188317124th Nov 2017 5:44 pm
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Samson66
 


Member Since: 17 Sep 2016
Location: Peterborough
Posts: 99

United Kingdom 2008 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Explain Ruined I am puzzled Confused Confused Confused you suggesting the D3 is ruined on coils?

I don't get it, she drives better than before handle cornering more precise and is much more forgiving off road.

It won't tow a horse box as well and it won't lower to go in low car parks I hate horses and don't use multi storeys but I DO travel across deserts and rocky terrain for hundreds of miles and I do like a car that corners like I am in control not an ECU.
 iiD Bluetooth Diagnostic Tool
Cambs GLASS Rep
!970 Petrol 109 "Samson"
1972 Diesel 88 No top half body "rat landy"
1988 110 V8 Defender
1995 300TDI Discovery Auto
1997 Camel Trophy 110 Support Vehicle P232KAC
2001 Freelander GS V6 
 
Post #188317224th Nov 2017 5:44 pm
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gstuart
 


Member Since: 21 Oct 2016
Location: kent
Posts: 13576

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Auto Java BlackDiscovery 3

hi, may i ask and each to there own of how they prefer there suspension, air / coils

isn’t the D3 and D4 better on air suspension as surely it would have been designed with springs in the beginning

can coils actually react better than being monitored by a computer
   
Post #188317324th Nov 2017 5:49 pm
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