Mercedes-Benz Forum banner

1 - 15 of 15 Posts

·
Registered
1996 E320
Joined
·
5 Posts
Discussion Starter #1 (Edited)
Hello,

I have a 1996 E320 with 112K miles on it. I've had nothing but bad luck the past 2 days. Yesterday, the car's ignition decides to take a crap and the key will not turn the ignition. I call my mechanic and he said to order a new tumbler from the stealership for $93. So that's that. Today, I decided to fiddle around with the key on the car and it turned on. The car seemed to idle pretty rough; I was thinking maybe the car needed to warm up, so I take it for about a 3 mile cruise and the car was shaking non stop (rocking motion). I decide to stop and turn off the car and restart it; thinking it will go away and it did, but a "check engine electronics" light shows up. Any idea what this could be and how much is it going to cost? I really need this car to travel back and forth from my college. :crybaby2:

Any help would be greatly appreciated.

Thank you!
 

·
Premium Member
07 Silverado CC Z71, 10 Chevy Tahoe LT, 12 BMW K1600GLT
Joined
·
5,812 Posts
Go to AutoZone, O'Reillys etc. They will read the Check Engine codes for you. After that we will be able to diagnose your problem a bit better.
 

·
Registered
1996 E320
Joined
·
5 Posts
Discussion Starter #3
I purchased one of the code readers from an auto parts store, and the error was

P0306

Cylinder 6 Misfire

Any idea what causes this and what to do?

Thanks!
 

·
Premium Member
07 Silverado CC Z71, 10 Chevy Tahoe LT, 12 BMW K1600GLT
Joined
·
5,812 Posts
Most likely a bad coil.

Before buying a new one, swap #6 coil with another one and see if the misfire moves to the other cylinder. If it does, then get yourself a new coil and you should be done.
 

·
Registered
Mercedes-Benz 1998 E320 - 160,000 Miles Strong
Joined
·
215 Posts
Most likely a bad coil.

Before buying a new one, swap #6 coil with another one and see if the misfire moves to the other cylinder. If it does, then get yourself a new coil and you should be done.
+1 or a bad plug or wire
 

·
Registered
1996 E320
Joined
·
5 Posts
Discussion Starter #6
Thanks for the replies guys. I'll have to check the coils and/or plugs and see if they are the problem. I'll report back with my findings.
 

·
Registered
1996 E320 260,00 miles Engine Replaced in 2009, 2000 E430 126,000, 2000 S500 160,000
Joined
·
82 Posts
what was the result of your investigation? I have the same code
 

·
Premium Member
2001 E320 - Brilliant Silver/Ash: 107,000+
Joined
·
17,193 Posts
what was the result of your investigation? I have the same code
Check the date, that thread was from late last year and the OP never provided the solution. Try a search for p0306 or start a new thread giving us as much info as possible. Also please use the UserCP link at the top and add your vehicle specifics and where you live.
 

·
Registered
1996 E320
Joined
·
5 Posts
Discussion Starter #9 (Edited)
Hi

It was actually a bad spark plug. I changed the spark plugs and the code went away. The car runs perfectly now at 115k miles. Hope this helps.
 

·
Registered
99' Mercedes-Benz E55 AMG
Joined
·
54 Posts
Hey guys! I have the same issue with my 96' e320 but the code reader said 5th cylinder misfire as oppose to yours being the 6th. I purchased a new coil pack, how do I go about finding which cylinder is #5 so I can replace it? Thanks for any help, all help is appreciated! :)
 

·
Registered
99' Mercedes-Benz E55 AMG
Joined
·
54 Posts
#1 is at the front of the car on M104.

Merry Christmas
Awesome! It's a straight six so that would make sense, so the 5th spark plug going front to back would be the 5th cylinder where I can replace the coilpack? Also do you know if the M104 engine uses a coil pack per each cylinder or a coil pack per each pair of cylinders?

Merry Christmas and a Happy New Years!
 

·
Registered
99' Mercedes-Benz E55 AMG
Joined
·
54 Posts
each pair
Starting straight from front to back than, the 3rd coil pack would be for the 5th cylinder, yes?

As I mentioned I have a coil pack to install for the 5th cylinder misfiring, so if it runs in pairs this would be the one correct?

Best Regards!
 

·
Registered
99' Mercedes-Benz E55 AMG
Joined
·
54 Posts
I don't know if it's the 1st, 2nd or 3rd coil pack that runs my 5th cylinder which is having the misfire. Does anybody know?
 
1 - 15 of 15 Posts
Top