C Class (W205) C 180 BlueTec,C 200 BlueTec,C 220 BlueTec,C 220 BlueTec BlueEfficiency,C 250 BlueTec,C 300 BlueTec Hybridplus,C 180,C 180 BlueEfficiency,C 200,C 250,C 300,C 400 Plug-in Hybrid,C 400

2015 C300 - Module N80 electrical locking clip

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Jun 21, 2020 | 02:08 PM
  #1  
tyabnet's Avatar
Thread Starter
Member
5 Year Member
 
Joined: Sep 2019
Posts: 119
Likes: 56
From: SD
2000 C230 - 2001 E430 - 2003 E320 -
2015 C300 - Module N80 electrical locking clip

Hello all. I am going to have to replace the N80 steering control module in our 2015 C300 4matic. We are well out of warranty and doing the job myself. I have the WIS software and am going through all the steps to ensure I have all the parts. I have run into a step where I can't find the part in reference. When removing the electrical connector from the steering control module (FYI - this is the entire left and right side switches on the steering column, housing, etc - its all a single part), the WIS gives me a step where I can't find a replacement part for:
  • Remove locking clip (6) from electrical connection (5).
  • The locking clip (6) is destroyed and must be replaced.
The pictures in the WIS are worthless for this level of detail. I'm sure once I take it apart, I will look at it and could either find the clip in the EPC or take it in person to the MB dealer (50+ miles away) - show it to the parts counter and get a replacement, but would sure like to have it on hand when I do the task to avoid the down time on her car and that 100 mile round trip drive... I called the dealer on Friday and spoke to the parts department - but since the EPC does not show anything related to this - without the part they can't help. The parts guy did tell me they keep a wide selection of all kinds of electrical connector parts on hand. Hoping someone here may have a part number... Attached is WIS for the step in question.

In case you are wondering, the issue I am trying to fix is intermittent unable to switch from reverse to drive without turning off the car. Very random and cannot reproduce on demand. The star C5 scan has two info codes, one on the shift module and its test is saying the real issue is with the N80 control module, and the N80 control module has the other with P17A29. That test tells you to test all the associated grounds and then the wires on the N80 connector (grounds and canbus) and if those are good to replace that module. I have already tested the body grounds - rock solid. The job will be to pull it all apart, and test all of the relevant connections on the N80 control module but to do that - you are basically doing everything to replace it. Hoping we don't have to replace and its just a bad connector or something simple and low cost...
Attached Files
Reply

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


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 10:27 AM.

story-0
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-1
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-2
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-3
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-4
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-5
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-6
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-7
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-8
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-9
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE