Vagabondrobb

Active Member

• Aug 18, 2017

• #1

Hey guys,

So about 6 months ago I decided to stick on some old 18" Range Rover vogue alloys (my old td5 had 18" and I prefer the look). All pretty straightforward (other than sourcing the right wheel nuts), but noticed the air suspension would randomly start dropping all the way down after a period of time parked up. Now it seems to happen almost every time I park. I haven't yet checked for leaks etc (plan to this weekend) but i wondered whether the problem could somehow be related to the ride height sensors and the extra 2" diameter from the rims? I would assume that it doesn't make a blind bit of difference, but perhaps the resting height has a default and it just gets a bit confused?

Any thoughts welcome..

Cheers!
Robb

 

neilly

Well-Known Member

• Aug 18, 2017

• #2

Std ride height is 473mm +- 15mm , from wheel ctr to the bottom edge of the wheel arch.

Wheel diameter should make no difference to this. Sounds like searching for leaks is a good plan.


Cheers

 

sierrafery

Well-Known Member

• Aug 18, 2017

• #3

IMO the rims have nothing to do with the dropping while parked ... i'd replace both bags and get done with it, usually other than bag leaks would occur all the time not just after it was parked

 

brian47

Well-Known Member

• Aug 18, 2017

• #4

sierrafery said:

IMO the rims have nothing to do with the dropping while parked ... i'd replace both bags and get done with it, usually other than bag leaks would occur all the time not just after it was parked

Click to expand...

+1 ^^^^

Just when you've convinced yourself that it's not the air bags ........ it'll be the air bags.
Change them first as last, and change them as a pair.
I run both 16" and 18" rims at various times of the year. The overall diameters are very similar, the difference in rim diameters is taken up by the profile or sidewall height of the tyres.

 

Vagabondrobb

Active Member

• Aug 18, 2017

• #5

Thanks for the advice.. new pair of bags ordered! The thing that had me scratching my head was seeing both sides going down (you don't expect a leak on both sides at at the same time), but then I read that the system will usually level itself out, which makes total sense..

Cheers

Robb

 

Vagabondrobb

Active Member

• Aug 25, 2017

• #6

I can confirm... it was the airbags. And such an easy job fitting new ones.

Robb

 

neilly

Well-Known Member

• Aug 25, 2017

• #7

Vagabondrobb said:

I can confirm... it was the airbags. And such an easy job fitting new ones.

Robb

Click to expand...

Good news,

Which ones did you get?

Cheers

 

Vagabondrobb

Active Member

• Aug 25, 2017

• #8

neilly said:

Good news,

Which ones did you get?

Cheers

Click to expand...

The Dunlop ones with the push in valves! I had a leap of faith moment cutting the old valves off, but they went in (and more importantly stayed in) perfectly!