My 2001 CLK 320 has problems starting, sometimes taking up to 20 tries. This morning it wouldn't start at all. It also will sometimes go into a mode where it accelerates very slowly , it gets up to speed once it does kick in but if you take your foot off the gas, you are starting all over again with the acceleration. I bought a fuel pump but now am doubting my choice. I don't believe a fuel pump, or filter will fix this. After reading I am thinking TPS or Crankshaft sensor. Could it be the computer? It seems to help if I disconnect the battery for a couple minutes. Oh,and sometimes the acceleration thing will happen when I am driving , and if it is doing the hesitation on acceleration thing while driving, I can usually turn it off and start it again and it goes away I know that sounds odd. Help!

 

Hello and welcome to the forum! The first thing that I'd suggest is that have the codes pulled. This should give you a fairly good idea where the issue(s) are coming from. Make sure to use a Mercedes specific tool and not a generic OBDII reader - an indy MB shop or the dealer can do this for you if you don't own a scan tool. Let us know if you have any other questions or if we can assist with any part needs in the future.