How to charge SLK R170 battery from trunk

[@maramacag]

Usefull and nicely explained. Many thanks sir!

[@paco6096]

very clever thanks

[@ulflind9267]

Hello janne, im an owner of an 230-99 and i think i have same fault as you had from start its sounds as its rocks in it the first minute and then running smooth again the hole day and next day from first start its rocks in it again. Its the same sound that your car have i think. Do you solved it??? Can you please tell me what to do.......... Regards Ulf Sweden

[@zJanneKz]

I still have same problem after cold start and it became worse after putting smaller supercharger pulley. As workaround I let is run 15-20 seconds, restart engine and it works fine. Restarting makes it using oxygen sensor immediately that adjusts air/fuel mixture to right value. Without restarting it waits 1 to 1.5 minutes before switching oxygen sensor on.