Hello everyone. I picked up a R170 that had been sitting for a long time. It started and drove on Tues and when looking at the car I opened the passenger side door and the alarm went off so I closed it and alarm stopped after 5 mins. I went to get the keys (2 fobs) and called a tow. When I tried to start it it seemed to run for a few sec then die so they loaded it and hauled it to my house. Battery was very low so after charging I turn the key and nothing, no click, no fan running on high. Started with a 12.5 v battery but it quickly went to 11v. I am replacing today but the only light I do have is a warning light for the Immobilizer (start lock out misfuntion) . I will check the fuses for the immobilizer which I believe is 35 and 38 and install a new battery.

Someone mentioned with the battery pulled to touch the pos and neg together to reset. I have never dealt with this in the past. I ordered a new RCM unit but it will not be here till next week. I am no Wizard on these cars but if someone points me in the right direction I will do what it takes. I was out yesterday from the crack of Dawn until well past midnight. I have 2 original fobs that work the locks. You guys are all I have to turn to since I dont have a trustworthy shop in the area. I am into the car right and will do what is needed to get it on the road. Its not like I have time to go hunting for issues but I refuse to let it be yard art. So can you reset the Immobilizer after tripping the alarm and if so how. It looks like the CPS has been replaced but I will order another. Help NEEDED in Tn

Disclaimer : This is a 1999 SLK230 but please dont kick me out because we know this is the same car as the Crossie's I have owned.