Hi,
I am getting an amber fault every now and again (Suspension Fault vehicle lean when cornering with ACE) but it is quite intermittent literally can go a week or so and the suspension still seems to be working fine.
When I turn the engine off and restart it goes and doesn't come back until another week or so

Are there any obvious checks or common reasons for this?

Also, assuming it needs diags, are there any DIY diag options rather than paying a main dealer a fortune and also the time waiting to get an appointment and get it to the dealer

Thanks

Most likely a leaking ACE pipe, check the fluid level and be sure it's topped up. Got - 2017 SDV8 Autobiography in Loire Blue
Had- 2008 TDV8 Vogue SE in Java black
Had - 2007 S/C in Stornoway Grey