what can it be?
 

k guys i have an 89 325i. now my question is that in the steering wheel at the bottom right hand side of it there is a lever one for wipers and the other one i don't know seens to be like cruise control but it doesn't work? why

what does the manual say.

i dont have the manual i wish

It's a cruise control. Up = resume/set. back is slow, ahead is accelerate and down is off

and it only works over 35 mph.

if it doesnt work, check the fuses and relays.

also, if your speedo isnt working right, it wont work right either.

Yea cruise control, is it rare in e30s (i dont know I dont have it, nor would i use it if i did)

i use my cruise control in heavy police territory. make sure im right by their standards.

other then that, never.

cruise control is quite handy whenever I drive in Switzerland.
For every SINGLE mile you drive across the limit, they charge you 10 bucks.
WTF???