Resetting CEL
Thread Starter
MBWorld Fanatic!
Joined: Oct 2004
Posts: 1,305
Likes: 37
From: Las Vegas, Nevada
2013 C350 Coupe, 2005 C230K Kleemann Sedan, 2013 GLK350 4matic
Resetting CEL
I have searched and cannot find on how to reset the CEL lght on my '05 C230 after replacing the O2 sensors for a P0420 code. Can I just pull an ECU fuse or do I have to disconnect the battery?
Thanx in advance.
Thanx in advance.
Junior Member
Joined: Jan 2008
Posts: 30
Likes: 0
ML 320
Try this:
I was once with my mechanic at the dealer and he showed me how to reset the codes, I actually saw him. He turned the key just before the car starts, then he turn the steering wheel all the way to the right, then all the way to the left, at least 2 times, kind of fast but not super fast, then he turned the key off and waited a few seconds. The lights went off.
I am not sure if this works everytime or if he did something else and I didn't see.
Hope that works
enrike
I am not sure if this works everytime or if he did something else and I didn't see.
Hope that works
enrike
MBWorld Fanatic!
Joined: Sep 2005
Posts: 6,191
Likes: 242
From: Albuquerque
'10 CL550, '12 GL550
I was once with my mechanic at the dealer and he showed me how to reset the codes, I actually saw him. He turned the key just before the car starts, then he turn the steering wheel all the way to the right, then all the way to the left, at least 2 times, kind of fast but not super fast, then he turned the key off and waited a few seconds. The lights went off.
I am not sure if this works everytime or if he did something else and I didn't see.
Hope that works
enrike
I am not sure if this works everytime or if he did something else and I didn't see.
Hope that works
enrike
CEL lights will indeed disappear--when problem is fixed--by battery disconnection.
They will also disappear over time doing nothing, again if the problem is fixed.
