Charging problem on 95' E220 coupe

P

PaulR

Guest
Help please, is the alternator is over charging the battery on my E220 coupe.Its already
made the battery immatate a boiling kettle (not good) and been blowing bulbs a bit to often recently.
Also the engine tickover has dropped recently (could be unrelated).
So is the alternator knackered and am I going to damage anything expensive running it like this even short term.
All suggestions welcome. Thanks.

Paul.
 

Cole@MBS

Forum Supporter
Authorised Forum Supporter
Joined
Dec 1, 2008
Messages
13,654
Reaction score
812
Age
51
Location
Hedge End, Southampton
Website
www.mbssouthampton.co.uk
Your Mercedes
124 300 CE 24 Coupe, C220CDI, 1959:Morris Minor
Help please, is the alternator is over charging the battery on my E220 coupe.Its already
made the battery immatate a boiling kettle (not good) and been blowing bulbs a bit to often recently.
Also the engine tickover has dropped recently (could be unrelated).
So is the alternator knackered and am I going to damage anything expensive running it like this even short term.
All suggestions welcome. Thanks.

Paul.

You need to replace the alternator Paul before you start to cook control units as well as the battery!!
 

jibcl500

Senior Member
Joined
Oct 22, 2005
Messages
6,420
Reaction score
6
Age
53
Location
Cambridgeshire
Your Mercedes
CL500,ML55,SLK280
Replace the regulator or brush pack on the alt only about £20 for a new one.

jib
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
You should be able to just change the reg pack on this one is it a 124 or 210 please
 

jibcl500

Senior Member
Joined
Oct 22, 2005
Messages
6,420
Reaction score
6
Age
53
Location
Cambridgeshire
Your Mercedes
CL500,ML55,SLK280
W124, shame really had a perfectly good alt off a 220 and tossed it in the skip.

jib
 

kth286

Senior Member
Joined
Nov 4, 2002
Messages
3,067
Reaction score
2
Your Mercedes
E320 Coupe 95
Merc dealers sell the regulators - give your full VIN to parts dept.
 
OP
P

PaulR

Guest
  • Thread Starter
  • Thread starter
  • #7
Thanks chaps,
I'll be off to the dealers than to be parted from my money!!

Cheers all.
 
OP
P

PaulR

Guest
  • Thread Starter
  • Thread starter
  • #9
Chaps,
I'm a bit suspicious about the alternator , should it be 70 or 90 amp as its a 90 amp unit which is fitted. This doesnt seem to agree with what GSF or Eurocar suggest should be fitted. The alternators off , Ive removed the reg' pack and i'm concerned about the condition of the brush rings as they are rather worn. Everything else seems okbut there is a very small amount of end float in the bearings. Am I wasting money buyingthe reg' pack or should I be replacing the Alternator complete. Help!

Thanks.
 

jibcl500

Senior Member
Joined
Oct 22, 2005
Messages
6,420
Reaction score
6
Age
53
Location
Cambridgeshire
Your Mercedes
CL500,ML55,SLK280
Can you post a pic please, if you spin the alternator does it make any noise if not then its ok the copper contacts on the shaft do look a like horrid but put a pic up so we can see.
What did the brushes look like on the reg pack?
jib
 
OP
P

PaulR

Guest
  • Thread Starter
  • Thread starter
  • #11
The alternators fine in one direction and very slightly noisey in the other.The brushes look to be well worn .Sorry about the poor pics ,crap camera or operator or both!
The lower ring is the most worn.
 

Attachments

  • Brush rings.jpg
    Brush rings.jpg
    120.8 KB · Views: 15
  • reg.jpg
    reg.jpg
    160.6 KB · Views: 15
  • alternator.jpg
    alternator.jpg
    206 KB · Views: 15

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
They still look not too bad,,what do you do ???
 
OP
P

PaulR

Guest
  • Thread Starter
  • Thread starter
  • #13
Me personally, I'm a instrument maker (metal mangler) by trade but not for much longer as my employer is about to make me redundent after 34 years and I could of really have done without the car going wronge at the moment! Still, such is life and with you good peoples help i'm sure the coupe will be fine again soon.
The nearest place I could source a reg' pack is Mercedes world at Brooklands so I'm off there today and I may as well go have a drool at all the nice new cars while I'm there.

Cheers.
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
So sorry Paul to hear that :(, 34 years of dedication all gone,,can you turn your hand to similar work where you are
 
OP
P

PaulR

Guest
  • Thread Starter
  • Thread starter
  • #15
Dedication might be putting it a bit stronge Malcolm but I know what you mean.
I'm affaid I dont have a degree in anything , which seems to be a reqiurement now so I might end up a "shelf stacking technician" . Still jobs a job as they say.

Cheers.
 

turbopete

Senior Member
Joined
Feb 4, 2009
Messages
14,204
Reaction score
328
Age
46
Location
Spennymoor
Your Mercedes
2010 '60' Ford Mondeo 2.0TDCi Zetec (sorry)
you have my sympathies Paul. thats why ive been doing agency stuff. not much else about round here for me
 
OP
P

PaulR

Guest
  • Thread Starter
  • Thread starter
  • #17
New reg' pack in, everything back together and it all works fine .Even the battery seems to have survived its abuse.
So I'd just like to say thanks to you all for your advice, I'll very grateful.

Cheers,

Paul.
 

television

Always remembered RIP
Joined
Mar 14, 2005
Messages
164,073
Reaction score
332
Age
86
Location
Daventry
Your Mercedes
2002 SL500, 216 CL500, all fully loaded
New reg' pack in, everything back together and it all works fine .Even the battery seems to have survived its abuse.
So I'd just like to say thanks to you all for your advice, I'll very grateful.

Cheers,

Paul.

Some good news anyway has come out of it :D:D
 


Over 100 branches Nationwide, More than 114,000 Parts in Stock, The UKs Largest, and Fastest Growing Parts Supplier,please see MBO Members’ Area for discount codeEuro Car Parts Ltd
Top Bottom