MBWorld.org Forums

Mercedes Tech Talk Discuss general technical questions and issues about your Mercedes-Benz. Moderated by a certified MB Tech.
Sponsored by:
Sponsored by:

P2272 (O2 sensor) code on an M156?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 09-24-2019, 08:57 PM
  #1  
MBWorld Fanatic!
Thread Starter
 
cfmistry's Avatar
 
Join Date: Jan 2015
Posts: 1,018
Received 352 Likes on 215 Posts
15 S550 4Matic, 86 560SL
P2272 (O2 sensor) code on an M156?
My car has been idling rough since I had the engine mounts changes a few weeks ago. Today it finally popped a CEL - P2272 (Lean O2 sensor on Bank 2). Any ideas if this is really the O2 sensor, or an indication of an intake manifold leak? Couldn't find much on a search.

Thanks,
Cyrus
cfmistry is offline  
Reply Like
Old 09-26-2019, 06:58 PM
  #2  
MBWorld Fanatic!
Thread Starter
 
cfmistry's Avatar
 
Join Date: Jan 2015
Posts: 1,018
Received 352 Likes on 215 Posts
15 S550 4Matic, 86 560SL
Also pulling pending codes P0056 and P0156 - both pointing towards the downstream O2 sensor. I will replace it, wish me luck!
cfmistry is offline  
Reply Like
The following users liked this post:
biker349 (09-26-2019)
Old 12-23-2019, 04:10 PM
  #3  
Member
 
StevilKnievel's Avatar
 
Join Date: Feb 2019
Location: Northeast PA
Posts: 78
Received 7 Likes on 6 Posts
2013 C300 4matic Sport sedan
Was the O2 sensor the culprit? My 13 c300 m276 just threw the same code.
StevilKnievel is offline  
Reply Like
Back to Subforum
Mercedes Tech Talk
View Next Unread
Warranty start date - which M-B information system houses this information?

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes, average.
Show Printable Version
Email this Page

Advanced Search
Quick Reply: P2272 (O2 sensor) code on an M156?


Reply Closed Thread Share

All times are GMT -4. The time now is 06:10 PM.