Halkirk
Member
- Joined
- Mar 28, 2011
- Messages
- 10
- Reaction score
- 0
- Location
- Sunny Aberdeen
- Your Mercedes
- C180 Sport/1996/111
Hi all,
I have a problem with my merc C180 Sport immobiliser. The red and green led's in the door handle and mirror flash simultaneously whilst cranking and the engine won't start.
I bought it at auction and it would only start if the battery was disconnected then reconnected and the engine started within 15 seconds.
I've removed the dealer fitted alarm and immobiliser and reconnected all the diverted wiring to no avail. I was checking the rest of the system and it appears that the transponder ring around the ignition lock is missing!! (that's if i ever had one!!). There is a small black two pin switch on the outside of the ignition barrel with a two pin white plug with female spade terminals in it but I think that this is the ignition key lockout switch.
There's a small black two pin plug nearby with round female sockets in it but I can't find anything to plug it in to (hence thinking that the transponder is missing!!) There is a push fit black plastic ring around the lock with a chrome plastic insert but no wiring (and it's just thin plastic so not the transponder!)
Is my car supposed to have this transponder ring?, and if so will a ring from a breakers do as a replacement?, is the key coded to the ring or the ecu and just transmitted by the ring??
failing all of this can I bypass the factory immobiliser?
Sorry for the lengthy post but I'm at my wits end (and I'm an auto electrician!)
any help would be greatly appreciated thanks.
I have a problem with my merc C180 Sport immobiliser. The red and green led's in the door handle and mirror flash simultaneously whilst cranking and the engine won't start.
I bought it at auction and it would only start if the battery was disconnected then reconnected and the engine started within 15 seconds.
I've removed the dealer fitted alarm and immobiliser and reconnected all the diverted wiring to no avail. I was checking the rest of the system and it appears that the transponder ring around the ignition lock is missing!! (that's if i ever had one!!). There is a small black two pin switch on the outside of the ignition barrel with a two pin white plug with female spade terminals in it but I think that this is the ignition key lockout switch.
There's a small black two pin plug nearby with round female sockets in it but I can't find anything to plug it in to (hence thinking that the transponder is missing!!) There is a push fit black plastic ring around the lock with a chrome plastic insert but no wiring (and it's just thin plastic so not the transponder!)
Is my car supposed to have this transponder ring?, and if so will a ring from a breakers do as a replacement?, is the key coded to the ring or the ecu and just transmitted by the ring??
failing all of this can I bypass the factory immobiliser?
Sorry for the lengthy post but I'm at my wits end (and I'm an auto electrician!)
any help would be greatly appreciated thanks.