C-Class (W203) 2001-2007, C160, C180, C200, C220, C230, C240, C270, C280, C300, C320, C230K, C350, Coupe

You thought Valeo made bad radiators? Check out this alternator!

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old May 5, 2010 | 01:24 AM
  #1  
acr2001's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 2,078
Likes: 4
From: NYC
2012 C300 4Matic
You thought Valeo made bad radiators? Check out this alternator!

I know that Valeo is junk, but my god. Can anyone explain how this is possible?

This alternator came out of a 2005 C240 4Matic with 30k miles on it.
Everything else in the engine bay is in excellent condition, no signs of rust anywhere except on some of the exhaust hangers.

The alt died yesterday, as you can probably see from the (crappy) pics one of the windings shorted out.

The alternator internals look like they're 30 years old. It has a manufacture date of 2005. What gives?!
Attached Thumbnails You thought Valeo made bad radiators? Check out this alternator!-img_0231.jpg   You thought Valeo made bad radiators? Check out this alternator!-img_0233.jpg   You thought Valeo made bad radiators? Check out this alternator!-img_0236.jpg   You thought Valeo made bad radiators? Check out this alternator!-img_0239.jpg   You thought Valeo made bad radiators? Check out this alternator!-img_0240.jpg  

You thought Valeo made bad radiators? Check out this alternator!-img_0242.jpg  
Reply
Old May 5, 2010 | 01:55 AM
  #2  
Milkm4n's Avatar
Member
 
Joined: Feb 2010
Posts: 209
Likes: 0
2006 c230
wow do all Mercedes come with those?
Reply
Old May 5, 2010 | 02:04 AM
  #3  
acr2001's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 2,078
Likes: 4
From: NYC
2012 C300 4Matic
Originally Posted by Milkm4n
wow do all Mercedes come with those?
No. From what I've gathered Bosch and Valeo alternators were used interchangeably. I have no idea if they still are in current production.

I ordered a 150 amp re-manufactured Bosch to replace this horrible piece of junk.
Reply
Old May 5, 2010 | 02:25 AM
  #4  
splinter's Avatar
Super Moderator
 
Joined: Jul 2006
Posts: 3,365
Likes: 12
From: Orange County, CA
GMC - Miata - Trek - P-Car
Sometimes that stuff melts. Ditched their defective radiator early on.
Bought a new 130 amp GMC alternator just yesterday for $70.

Valeo makes excellent windscreen wiper blade inserts though.
Reply
Old May 5, 2010 | 02:53 AM
  #5  
TemjinX2's Avatar
MBWorld Fanatic!
 
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
denso ftw..lol. My 14yr old denso integra alternator didn't look that bad and it still worked after 14yrs.
Reply
Old May 5, 2010 | 04:16 AM
  #6  
skittles's Avatar
MBWorld Fanatic!
 
Joined: Dec 2008
Posts: 1,458
Likes: 3
From: Royal Oak, Michigan
Moped
Originally Posted by splinter
Sometimes that stuff melts. Ditched their defective radiator early on.
Bought a new 130 amp GMC alternator just yesterday for $70.

Valeo makes excellent windscreen wiper blade inserts though.
your using a gmc alternator on your 203?

Originally Posted by TemjinX2
denso ftw..lol. My 14yr old denso integra alternator didn't look that bad and it still worked after 14yrs.
and your using a denso?
Reply
Old May 5, 2010 | 04:18 AM
  #7  
TemjinX2's Avatar
MBWorld Fanatic!
 
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
Originally Posted by Patrick LowKey
your using a gmc alternator on your 203?



and your using a denso?
no...you can probably retro one on, but at the time the car was my dd and i needed up and running asap. I'm running the same valeo. I have a back up in case it fails again. I'm convinced all bosch and valeo stuff will break, so i have back ups of all the major stuff..lol.
Reply
Old May 5, 2010 | 10:59 AM
  #8  
ontmiss's Avatar
Senior Member
 
Joined: Jan 2010
Posts: 283
Likes: 2
From: Mississauga, Ont.
2007 C280 4matic Avantgarde
According to the wires shape of the stator coils it’s obvious that’s very poorly handmade/rebuilt in shop without any machinery. Hard to believe that’s original one but anything is possible.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old May 5, 2010 | 01:29 PM
  #9  
acr2001's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 2,078
Likes: 4
From: NYC
2012 C300 4Matic
Originally Posted by ontmiss
According to the wires shape of the stator coils it’s obvious that’s very poorly handmade/rebuilt in shop without any machinery. Hard to believe that’s original one but anything is possible.
It has the original factory labels and I didn't notice any signs of it being a reman. It would be interesting to compare this to another Valeo out of a W203.
Reply
Old May 5, 2010 | 02:53 PM
  #10  
ontmiss's Avatar
Senior Member
 
Joined: Jan 2010
Posts: 283
Likes: 2
From: Mississauga, Ont.
2007 C280 4matic Avantgarde
I wouldn’t be surprised at all if it’s factory installed. See attached picture of my steering shaft 2007, it’s a shame.
Attached Thumbnails You thought Valeo made bad radiators? Check out this alternator!-capture.jpg  
Reply
Old May 5, 2010 | 03:15 PM
  #11  
03MBC320's Avatar
Senior Member
 
Joined: May 2009
Posts: 289
Likes: 2
From: Orlando, FL
2003 C320 4Matic
how do you know if you have the Valeo alternator? other than taking it out
Reply
Old May 5, 2010 | 06:00 PM
  #12  
damedash's Avatar
Junior Member
 
Joined: Jun 2009
Posts: 37
Likes: 0
c240
anybody know where to buy 180a+ alt
Reply
Old May 5, 2010 | 06:08 PM
  #13  
skittles's Avatar
MBWorld Fanatic!
 
Joined: Dec 2008
Posts: 1,458
Likes: 3
From: Royal Oak, Michigan
Moped
Originally Posted by ontmiss
I wouldn’t be surprised at all if it’s factory installed. See attached picture of my steering shaft 2007, it’s a shame.

what the hell happened there.....
Reply
Old May 5, 2010 | 07:13 PM
  #14  
slammer111's Avatar
MBWorld Fanatic!
20 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: Dec 2003
Posts: 3,275
Likes: 236
From: BC, Canada
2003 C230K Coupe Orion Blue
^ Yeah my 2003 steering shaft had a bit of rust as well, but nowhere near as bad as ontmiss
Reply
Old May 5, 2010 | 07:57 PM
  #15  
mleskovar's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2001
Posts: 5,851
Likes: 196
From: Huntington Beach, Ca.
'17 Jaguar XF
Originally Posted by acr2001
...The alternator internals look like they're 30 years old. It has a manufacture date of 2005. What gives?!
Could that possibly be a Katrina car?
Reply
Old May 6, 2010 | 12:22 AM
  #16  
acr2001's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 2,078
Likes: 4
From: NYC
2012 C300 4Matic
Originally Posted by mleskovar
Could that possibly be a Katrina car?
Nope. Impossible. Also the other components are fine, this car has zero signs of water damage and is in pretty amazing condition.
Reply
Old May 6, 2010 | 05:31 AM
  #17  
TemjinX2's Avatar
MBWorld Fanatic!
 
Joined: Dec 2007
Posts: 5,034
Likes: 6
From: Corona, CA
03 g35 coupe...........02 c32 Sold
i'm guessing mercedes didn't do a lot of winter testing. I'm assuming these cars with all this rust are from the states within the rust belt? Or am I wrong?
Reply
Old May 6, 2010 | 07:36 AM
  #18  
advans's Avatar
MBWorld Fanatic!
 
Joined: Jul 2005
Posts: 7,424
Likes: 3
From: New York City
C55 ///AMG, 535xi
I had to replace my Bosch Alt with 42k miles on the car!
Reply
Old May 6, 2010 | 01:24 PM
  #19  
C230 Sport Coup's Avatar
MBWorld Fanatic!
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Had my Valeo alternator rebuilt at 120K miles.
Didn't look like that!!
Reply
Old May 6, 2010 | 02:09 PM
  #20  
acr2001's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 2,078
Likes: 4
From: NYC
2012 C300 4Matic
Originally Posted by C230 Sport Coup
Had my Valeo alternator rebuilt at 120K miles.
Didn't look like that!!
You live in California. You don't count! (I say that with a hint of jealousy)
Not much chance for components to rust out in your area. I just cannot believe an alternator made of such junk metal is sold where it could see winter use in states like NY with salt.

Either that or this alternator came from a really bad batch....
I feel like Valeo screwed me pretty bad here.
Reply
Old May 6, 2010 | 02:12 PM
  #21  
acr2001's Avatar
Thread Starter
MBWorld Fanatic!
 
Joined: Nov 2007
Posts: 2,078
Likes: 4
From: NYC
2012 C300 4Matic
Originally Posted by TemjinX2
i'm guessing mercedes didn't do a lot of winter testing. I'm assuming these cars with all this rust are from the states within the rust belt? Or am I wrong?
I think you're right. I'm in NY and this car has seen plenty of salt. The thing is - there are very few signs of rust. Pretty much the exhaust hangers and this junk alternator are rusted out. To hell with Valeo.
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 04:16 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