I've recently purchased a 1998 SLK 230 that was imported from Japan. No rust and very little mileage for it's year (89000 kms) The car was working like a dream until the other day when I parked it and came back out to find it wouldn't start. I got a boost and it took right off. After 2 hours on a charger I had just enough juice to put up the power window but not enough to start it. We had frost the night before. I decided not to take any chances and went to the autoparts store and bought a new battery specific to the car. Installed the battery and it fired up right away. Problem is I now have two warning lights on BAS and SRS and as well the car appears to be in limp mode. This car has a 38 pin socket under the hood for code reading and there's only one place around here that can read it and they are not available until June 3rd. I've ordered and OBD 2 reader and a cable that converts the 38pin to 16. I'm hoping that clearing the codes will solve my problem and then it will be simply the re-syncing everything according to the instructions in the manual. Had I read up on it before I changed the battery, I would have hooked up a back up battery before initiating the change so power wouldn't be lost. Is there anything else I can do other than to wait until June 3 or until my code reader arrives. Any input would be welcome. Thanks.