Originally Posted by RedLiner
Thanks for that interesting information loubapache.
Can you identify the two small black oblong units attached to my key-fobs?
These are the keys to my 1998 SL500 which I bought last year. The previous owner said to be sure they were near the the ignition lock ring when starting.
I can only assume they are DAS related?
I position 2 I have to wait for a faint bleep before firing up the engine.
There are in fact two bleeps one loud and the fainter bleep, the car will not start until the faint bleep is heard.
Click image to enlarge
The black oblong bits are part of an anti theft device. Behind the dash and normally in the area of the ignition unit is a small pick up that receives a signal from the oblong object.
If you get into your car with the key and leave the oblong unit at home your car will not start.