Warning light mayhem

[rad dad]

i have a 1999 S Reg MK4 Golf 1.8 GTI Turbo

warning lights keep popping up on my dashboard!!

air bag warning

service needed warning

Coolant Warning

and the clock keeps re-setting itself !!!!

I get the feeling that the computer may be mashed up !!!! is this likely and if so is it expensive 2 fix or replace???

I have read all the horror stories from others about car being in garage for weeks and still the problem returns.......

the car is coming up for a service so will get it all checked out anyway....just wanted to get a little idea of cost b4 some monkey stings me 4 a grand!!!!!

[Key]

had a similar problem with mine, clock and whole computer resetting, coolant warning - everything just disappeared after buying a new battery