Fitted a new battery before christmas to our 2003 TD6 and as its not used sometime for a fortnight or more at a time, we connect it up to trickle charge with a C-TEK MSX 5.0 charger.

Even after its been on charge for a few days (charger showing full LED's illuminated) as soon as you unplug it and start the car, the height adjust toggle 'lock' button illuminates straight away, meaning no height adjustment can be made.

Tried the left to right with steering to reset but still stays illuminated.

What else should I be looking at please? Not a major issue, but it is easier to lower it to access mode when parking up as mrs isn't the tallest of females

That is a hard fault and will remain until cleared by a diagnostic tool...  Pete

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2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Thanks Haylands. Just been out and cleared it with my iCarSoft tool, turned the car off and on again, did the left to right and it cleared (the toggle button was no longer locked/illuminated).

I pressed the access height button on drivers door and it started to lower, then ‘bong’, height adjust locked again (I’m guessing locked at a lower height than normal). Scanned again and for Air Suspension it came up with a CAN bus fault.

If we drive it I’m assuming the suspension will return to normal height, even though it locked at a lower ride height?

And CAN bus fault on air suspension could be a multitude of things?

IIRC there was always a can bus fault on the early cars... LR wouldn't pay BMW to remove it, it didn't make any difference though...!!!

If it faults when lowering it's usually the filter on the pump not able to exhaust the air fast enough... Not sure about your diagnostic tool, some can only read some faults so you may have others....  Pete

__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

I thought when it logged a hard fault all the lights went out, every day is a school day 🤣. Agree with Pete, seems like it’s not lowering fast enough and causing a fault, I drilled a little hole in the exhaust filter on the compressor and never had an issue since. Worth a check. Though I get it’s not the “proper” fix. Some folk have cleaned the filter with success but didn’t work for me.

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport