Fuel filters and injectors
 

I want to change the primary and secondaryfuel filters. Also I am going to replace the injector hoses. Is there any particular order in which I should do this? Any helpful information will be appreciated.

RE: Fuel filters and injectors
 

Okay, thanks. Where is the cigar hose? Should it also be replaced with a braided hose?

RE: Fuel filters and injectors
 

Ahhhh. Thanks; I'll keep you posted.

RE: Fuel filters and injectors
 

I've changed the filters and injector hoses. It was a lot easier than I had imagined. However I have another issue now...I didn't prime the secondary filter during installation and prettty much killed the battery while trying to start it.My radio locked itself, the word "CODE" appears on the screen and ofcourse I don't know the password. Any suggestions or is this going to be a dealer visit? Second issue: the transmission is "jerking" when changing gears. It was shifting smoothly before I changed the filters and injector hoses. Any suggestions?

RE: Fuel filters and injectors
 

the cigar hose is that the return line?

RE: Fuel filters and injectors
 

I believe so. It is the largest of them. It connects directly behind the secondary fuel filter.

RE: Fuel filters and injectors
 

you can buy radio code online...search mercedes radio code in google

RE: Fuel filters and injectors
 

When I actually removed the radio. The code was written on the side of it. Problem solved. I truly don't believe that it is neccesary to buy it, the dealership will give it to for free with the serial number. You might need to provide proof of owmnership.