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Land Rover Repair/Disco 3 Suspension

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Question
Good day John,
I trust you are well.
My 2008 disco 3 v8 HSE does not lower when the rocker switch is operated.
It does go up when the swich is activated to lift the vehicle.
Once at the high suspension setting it only lowers when the speed goes up - it gives the message that it will lower if speed is not decreased. It shows no fault messages.
The symbols by the rocker switch does not light up when the lowering function is selected but does light up when the vehicle is raised.
Regards,

Answer
The problem in this case may be as simple as a faulty switch but you cannot do any meaningful tests without one of the Land Rover diagnostic systems.  Generic scan tools won't talk to the air suspension.   If you are far from a shop with proper test gear I'd suggest swapping the switch.  Beyond that I suggest you wait to get proper test access.

If you travel into remove areas you might think about converting the truck to coil springs so you are not at risk for air suspension failure far from home

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John Elder Robison

Expertise

I own J E Robison Service in Springfield, MA. We are Bosch Car Service for Land Rover, BMW, Mercedes, and other European lines. I can answer most questions about Land Rover service or repair. I'm known as a car enthusiast, machine aficianado, photographer, writer, and speaker. I've been around Land Rovers and British cars most of my life. Visit me at my car business, www.robisonservice.com or my author website, www.johnrobison.com. Check out my autism and writing blog at jerobison.blogspot.com or my photos on www.pbase.com/robisonphoto John Elder Robison

Experience

I have been a Land Rover service manager since Land Rover returned to North America in 1987. My company is a four-star Bosch Car Service facility, known nationwide for Land Rover service, overhaul, customization, and restoration. In addition to Land Rover our company services BMW, Jaguar, Mercedes-Benz, Rolls_Royce, and Bentley motorcars. We have factory-plus-level service capability for all makes. Visit my company online at www.robisonservice.com > service > land rover Also visit my blog at robisonservice.blogspot.com

Organizations
ASA IATN NPPA PPA

Publications
In the Land Rover world, my writing can be found in various print magazines and online at robisonservice.blogspot,com. In the wider publishing world, my work is published by 20 publishers in over 50 countries. Mt books Look Me in the Eye, Be Different and Raising Cubby have made US and international bestseller lists.

Education/Credentials
I am ASE certified, Bosch Trained, and trained by Omnitec/T4 and Autologic on their Land Rover test systems.

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