Originally Posted by
keith555
Hi! All,
O.K. I am Aussie living Perth Western Australia.
My 2006 coupe has some serious issues going on. The alarm siren was going off by itself, so I opened it, as always battery acid had taking out the circuit board. So I got a new one part #A 219 820 32 26 a Mercedes replacement SLK 320. I plug it in and put fuse 9 back in. Car will not start, nothing, only get the battery light on the dash. Put new batteries in the key fob, no flashing lights nothing. Unplugged the siren and removed fuse 9 nothing at all. The car battery is 3 months old din 65.
Can manually lock the car but rear hatch will not lock.
Any answers to this problem, besides a box of matches and claim insurance.
I think the alarm module is stuffed. There is no tech here in Perth only dim wits.
Will the computer system need reprograming?
Just to make sure that the terminology used is what we assume you mean.
1. The engine does not rotate when the ignition is turned?
2, Forget the fob batteries, they only power the remote locking, let's get the engine running before we worry about the fob.
3, Do you only get the battery light on the dash? Usually all the other dash lights come on as well.
4, When you manually lock the car does the passenger side lock as well? If it does the locking module in the trunk may be OK. The common reason for the trunk not to lock is because of a leak in the air line from the locking module to the trunk lock. Sometimes the passenger side locks and sometimes not, it depends on the size of the leak. The broken area of the line is usually in or near the rubber boot at the top of the hatch on the passenger side. Fix that leak and if the air/vacuum is present the hatch should open and close when using the key.
But let's get the car going first. Hopefully it is just a poor connection as ala_xfire says.Batteries do die due to internal shorts no matter their age.