Mercedes 190e W201 1992 not starting after battery change. Alarm is sounding.
I’m hoping for some help! I bought a merc 190e and the previous owner fitted a new battery, when the car is unlocked the alarm sounds. I put the key in the ignition and turn it, the alarm stops but the car does not start. I have to wait for the hazards to stop flashing then the car can start. Does anybody know what the problem could be? The car is absolutely spotless and has no other visible issues. Thank you in advance!