E-Class (W212) 2010 - 2016: E 350, E 550
Sponsored by:
Sponsored by: CARiD

Help installing alternator

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Mar 10, 2020 | 10:27 PM
  #1  
bhpplease's Avatar
Thread Starter
Junior Member
 
Joined: Jun 2019
Posts: 54
Likes: 9
From: London, UK
2010 E350 CGI S212 // 2004 SL500 R230
Help installing alternator

Hi Team..

Hope you are all doing well.. and not totally freaking out a possible end of the world and enjoying the lovely marque that is MB!

I have been trying to re-install the alternator in my S212 E350 CGI and seem to have hit a snag...In the following photo (Ripped from Marks thread below)...
  • The problem is that the alternator at point A and what would be D are not sitting flush with the engine, meaning there is a slight gap between engine and alternator
  • Points B and C are flush, with no gap
  • The result is that the alternator pulley is at an angle, not good.
  • The reason that there is a gap at one side is that the bolts were literally as tight as could be and at one point I started to hear creaking when tightening..which I fear was a stripping thread or hopefully not cracking aluminium.
I am going to go at this again tomorrow and looking for tips on how I could install this properly? The only thing I can think of is that I tightened one side too much and as a result the unit was at an angle not allowing the other side to tighten.

Perhaps I need to tighten all four in a round robin style?

Any ideas would be greatly appreciated.

Thanks

Credit: @markgm https://mbworld.org/forums/e-class-w...irections.html


Reply
Old Mar 11, 2020 | 08:54 AM
  #2  
bumparker's Avatar
Junior Member
10 Year Member
 
Joined: Sep 2014
Posts: 29
Likes: 14
2014 E350
I am just giving you some things to think about:

1. You say there are 4 bolts, are they all the same length? If not, do you have the bolts reversed? The bolts in the picture look too long to me.
2. If they are all the same length, are you missing some spacers that were remove originally?

Just my thoughts.
Reply
Old Mar 11, 2020 | 09:32 AM
  #3  
RA72825's Avatar
Banned
 
Joined: Oct 2005
Posts: 4,957
Likes: 1,640
Was there any Loctite used on those bolts previously? Maybe it was replaced once before and they used Loctite. If so, you need to run those bolts in and out of the hole before trying to mount the alternator to clean them out.
Just a thought.
Reply
Old Mar 11, 2020 | 09:51 AM
  #4  
konigstiger's Avatar
Out Of Control!!
 
Joined: Jul 2003
Posts: 15,901
Likes: 4,631
From: North Scottsdale, AZ
'71 Pinto

Reply
Old Mar 11, 2020 | 10:36 AM
  #5  
kajtek1's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Liked
Loved
 
Joined: Jan 2009
Posts: 9,224
Likes: 1,798
From: V E G A S
1922 Ford Model T / no OBD
Looks like the alternator was installed at angle and bolts got cross-threaded.
Reply
Old Mar 11, 2020 | 10:50 AM
  #6  
RA72825's Avatar
Banned
 
Joined: Oct 2005
Posts: 4,957
Likes: 1,640
Originally Posted by kajtek1
Looks like the alternator was installed at angle and bolts got cross-threaded.
He said that is a borrowed photo and not his alternator
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 03:39 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE