A couple of days ago I test drove a Disco 3 2.7 diesel for sale with auto box, 30k on clock 2005 year. When coasting at 30 mph the box was jumping between gears a couple of times a second. When I pulled off from stationary, the engine revved up in neutral then went into second and then first gear before engaging and moving off. Any Ideas? I've never known an auto do this before. (I was in drive all the time).
Regards
Tony