04 s600 entire passenger side bank misfiring.
Thread Starter
Newbie
Joined: May 2016
Posts: 10
Likes: 1
S600
04 s600 entire passenger side bank misfiring.
Hi everyone. First time posting on here.
Ok so here's my problem.
Passenger side entire bank is misfiring . Codes 300-306. 5 months ago I replaced all the spark plugs and both coil packs. Was running beautifully until until yesterday. I have lifetime warranty on the packs so I replaced the pack and plugs on it . Nothing. So I took it to the dealer and 4 hrs of diagnostic labor later after checking it out. They can't figure out the problem. Idk what they checked . I took of the cat thinking it might be plugged but no difference. So car turn on both banks but after 15 seconds passenger side bank shuts down.
Ok so here's my problem.
Passenger side entire bank is misfiring . Codes 300-306. 5 months ago I replaced all the spark plugs and both coil packs. Was running beautifully until until yesterday. I have lifetime warranty on the packs so I replaced the pack and plugs on it . Nothing. So I took it to the dealer and 4 hrs of diagnostic labor later after checking it out. They can't figure out the problem. Idk what they checked . I took of the cat thinking it might be plugged but no difference. So car turn on both banks but after 15 seconds passenger side bank shuts down.
MBWorld Fanatic!
Joined: Jan 2008
Posts: 6,151
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Mercedes
It seems SDS cannot differentiate between a coil pack problem and transformer problem
Since the coil packs are new the next step is the transformer . All these parts should be replaced anyway at this age
Since the coil packs are new the next step is the transformer . All these parts should be replaced anyway at this age
Senior Member
Joined: Dec 2010
Posts: 282
Likes: 66
From: Virginia Beach
2005 S600 2005 SL600
Before you spend $700+ on an inverter, I recommend that you rent one.
http://www.v12icpack.com
These guys have a rental program - and I just had them repair my passenger side coil. They are a great alternative to replacing parts (repair and/or rebuild your coil instead) and the rental allows you to troubleshoot your problem without throwing parts at a problem.
http://www.v12icpack.com
These guys have a rental program - and I just had them repair my passenger side coil. They are a great alternative to replacing parts (repair and/or rebuild your coil instead) and the rental allows you to troubleshoot your problem without throwing parts at a problem.
Super Member
Joined: May 2015
Posts: 554
Likes: 37
2004 S600
When my coil went out, it started out as you described, that bank would sometimes shut down after running a while. But usually would hit on all 12 if I shut the car off and restarted. Then eventually, it would not come back on at all. At that point I parked it and ordered a new coil. It's been fine ever since I replaced the coil with the exception of when I have the water/meth spraying. I'm not sure yet whether it's actually causing a misfire, or if the computer just thinks it is and shuts down a bank after the fact. It seems to do fine during a pull but sometimes will shut down one bank after I get off the throttle.
I was thinking of doing the ignition transformer rental to see if it cures the problem. It's entirely possible that the water/meth is just messing with the ion current stuff and triggering false misfire readings in the computer. Seems to run fine if I unplug the water/meth pump. I opened up my transformer and couldn't see any bulging or leaking capacitors or obviously cracked/bad solder joints but that's about the extent of my diagnostic ability with electronics.
I was thinking of doing the ignition transformer rental to see if it cures the problem. It's entirely possible that the water/meth is just messing with the ion current stuff and triggering false misfire readings in the computer. Seems to run fine if I unplug the water/meth pump. I opened up my transformer and couldn't see any bulging or leaking capacitors or obviously cracked/bad solder joints but that's about the extent of my diagnostic ability with electronics.
Last edited by ZephTheChef; May 20, 2016 at 04:41 PM.
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Member
Joined: Apr 2016
Posts: 202
Likes: 19
2001 S600 Lorinser Body Kit & W215 Front-End Conversion
This is good to know. I will give them a try also. Certain mornings when I start my car, the entire passenger side misfires. It always happens in the morning when there is alot of dew in the air where water droplets form. After driving some time, it would go away. I am not sure if it's the ignition transformer or some of the coils have bad contact due to the moisture forming.
Renting the parts will give me the best way to troubleshoot the issue. I'm glad to know this program worked for you as it gives me more of a reason to give them a try and save some bux. Thanks!
Renting the parts will give me the best way to troubleshoot the issue. I'm glad to know this program worked for you as it gives me more of a reason to give them a try and save some bux. Thanks!
Last edited by shooffnyc; May 26, 2016 at 02:52 PM.
