S65 AMG "Check Engine" missfires. Suggestions?
Thread Starter
MBWorld Fanatic!
Joined: Oct 2009
Posts: 3,433
Likes: 212
From: Sweden, Stockholm
W222 S63L, ML/GLE350
S65 AMG "Check Engine" missfires. Suggestions?
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,264
Likes: 366
'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
I'm told the ignition module goes right along with the coils. It's the reason I didn't buy a 65. I'm also told the W222 improved on both the coils and the module, but we'll see. Apparently heat is the culprit and most people automatically jump to replace coils (over $1k per bank) when it's really the module causing the problems. I have no direct experience with this, thankfully, other than to see 65 after 65 in my mechanic's shop with the same issues (ignition coils and modules, cooked transmissions). Good luck.
maw
maw
Thread Starter
MBWorld Fanatic!
Joined: Oct 2009
Posts: 3,433
Likes: 212
From: Sweden, Stockholm
W222 S63L, ML/GLE350
I checked the ECI. It gives 220 volts on both sides wich normally is the problem that one side gets to Little. But I will try and replace it anyway since it is only 200$.
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,264
Likes: 366
'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
See, https://mbworld.org/forums/m275-v12-...-diy-help.html
Also, since the transformer works with the crank position sensor (a known problem on these cars), you might check that too. If it's the original CPS, you might swap that on a whim.
Good luck.
maw
Last edited by maw1124; Jun 21, 2015 at 09:27 AM.
MBWorld Fanatic!
Joined: Apr 2009
Posts: 1,264
Likes: 366
'06 MB S55 AMG; '04 Audi Allroad 4.2; '05 BMW M3 Conv.; '92 MB 500E
It's between the motor and the firewall, at least on W220s. Not sure about on W221s. But I'm not a DIYer so I have no idea how to get back there and change them. I just keep track of the things that may leave me stranded and try to get to them before they get to me. Looks and sounds like your problem is the transformer.
Good luck,
maw
Good luck,
maw
