I bought myself a 1997 523 the other day, I have been after one for ages. I got it cheap as it had a light front end bump. A new bonnet and bumper and the thing looks like new, BUT, the central locking does not work at all, the windscreen wipers and washers dont work, the airbag light is on, the interior lights do not work at all and the rear electric windows dont work!
I checked all the fuses and there all fine.
Any one have any ideas?