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  #1  
Old 08-25-2000, 10:02 AM
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Join Date: Jul 1999
Posts: 239
Hello -

It's been a while since my last posting.

Is it possible to rebuild the Bosch alternator or better to replace with a rebuilt or new unit ?

I think the alternator on the 81 300SD needs attention. The car has a new regulator for the alternator and battery but the alternator, which I believe is the original unit with about 195,000 miles on it, needs to be rebuilt or replaced. It is not keeping up with the load when the car is in stop and go traffic with radio/headlights/foglights/climate control for an extended period.
Went to the store through 25-30 minutes of crawling traffic and when I came back out of the store the battery bogged down after several cranks.
No problem after extended steady cruising.

By the say, after a valve adjustment (w/ wrenches bought from you) and regular oil changes the car has been humming along like it is new.


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  #2  
Old 08-25-2000, 12:09 PM
WmHarlow
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I had this same choice a while back. After weighing the cost of a remanufactured Bosch (~$85), and the cost of parts plus time to rebuild..... I bought the remanufactured unit. Plus, the remanufactured unit has a guarrantee... DIY does not.

just my $.02

------------------
William
76 240D (W115) - 550K miles
78 300D (W123) - 200K+ miles
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  #3  
Old 08-25-2000, 12:20 PM
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Join Date: Jul 1999
Posts: 239
Thanks for the reply.
Rebuilt unit it will be.
And I'm hoping this will offset the winter starting problem from last season.
It was being diagnosed initially as "I think we need new glow plugs", which may still turned out to be the case but we shall see.
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  #4  
Old 08-25-2000, 03:48 PM
WmHarlow
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A new alternator will usually fix these problems, if the slow starting/glowing was due to a battery weakend by a poor charging.

If it has been a while since the glow plugs were changed, you may need to look into this. It will make a difference if the glow plugs are old or faulty.

Good Luck,

------------------
William
76 240D (W115) - 550K miles
78 300D (W123) - 200K+ miles
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  #5  
Old 08-25-2000, 04:13 PM
LarryBible
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William offers some wisdom here. I've driven lots of miles in a Benz and have learned that you will get more trouble free alternator miles for the dollar with a Bosch certified rebuilt. Goes for starters too.

At least, that's been my experience.

Have a great weekend,

------------------
Larry Bible
'84 Euro 240D, 523K miles
'88 300E 5 Speed
'81 300D Daughter's Car
Over 800,000 miles in
Mercedes automobiles

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