1996 Mercedes Benz c180 manual model. Immobiliser does not deactivate. Red and green lights in mirror flashing

Hey Marius,
Here are two kinks that should help..
https://www.benzworld.org/threads/c180-1995-immobiliser-problem-pls-help.2987361/
https://mbworld.org/forums/c-class-w202/133721-immobiliser-problem-car-wont-start-help.html

it will have to go on a fault diagnosis to find the the fault code and take it from there, there is rumours that if you disconnect the battery for 5 mins it will sort it, but it wont. hope i helped

red/green mirror lite flash car wont start

Hello Abdul,
I had this problem and the solution is rather strange.... Change the battery in your remote key for a brand new fresh one and see if this solves the problem. Apparently, when the lithium battery is low, the central locking will continue to work but the immobiliser disarming circuit cannot decode the signal.

check conections on starter motor

have you syncronized the remote to the receiver and have u checked the fuses

That's your security system either activating or deactivating. It usualy stops after a couple of minutes.

hello,good day,red and green is your indicator for your immobilizer or central locking system,maybe you need only to synchronize your car,please read your owner manual,ty

If you have a small odd shaped key on the keyring there is a socket under the steering wheel (in the plastic housing) which mine fitted. By turning the key left or right in the socket it resets the light. I found that the flashing light indicated that the alarm had been triggered at some time when I had been away from the car and had switched itself off after a time. If you have this key you could try that.

that system is part of D.A.S. 2( driver authorization system verson 2). the lights in the mirror will blink red when lock and green when unlock. during the self diagnoses portion they will blink simutanilusly when the remote key batteries are low and alternating when there is a malfunction with the key or other part of the driver authorization. it sounds like your remote key central locking batteries are low.