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#1
02-23-2014, 05:24 PM
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1994 Mercedes E320 wagon alternator removal
I am about to take the alternator, prior to taking it to the auto store for testing, off the 1994 E320 wagon. Can the alternator be remove without taking the serpentine belt off? If I just loosen the tension bolt and remove the two bolts connecting the alternator, should that work and be able to remove the alternator?
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#2
02-23-2014, 10:19 PM
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There is no tension bolt on an m104. You will need to loosen the belt by means of the belt tensioner, which you can do by putting a 15mm socket on to it and pushing your wrench clockwise. The pulley is located just under the water pump pulley. You can leave the belt hanging there I guess, but it needs to come off the alternator in order for you to remove it.
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#3
02-24-2014, 09:38 AM
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Quote:
on my 104's... the big center bolt is an allen head....loosen it good... and then loosen the 13mm protruding bolt just enough to get the belt off.... i just did the alternator on my cab.... twice.... first one was bad.... i tried to do the first one without loosening the tensioner and this is what learned
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k  1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC]
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#4
02-24-2014, 01:04 PM
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Lee,
This forum taught me how to do this on the M103, and it works - no need to touch the tensioner. Can this also be done on the M104 -is the alternator bracket/mount the same as the M103?
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87 300e (white/black; amg body kit) 88 300ce (red/cream; amg body kit) 93 300ce cabrio (white/blue/blue top) 93 300ce cabrio (black/grey/black top) 98 ml 320 (totaled @ 137,000 miles) 99 clk320 (black/grey/black top)
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#5
02-24-2014, 11:37 PM
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Quote:
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1989 300ce 129k ( facelifted front,updated tail lights, lowered suspension,bilstein sports, lorinser front spoiler, MOMO steering wheel, remus exhaust,stainless steel brake lines). (Gone) 1997 s320 154k (what a ride). Sold with 179k miles. Replaced with Hyundai Equus 1994 e320 Cabriolet 108k 1972 280se 4.5 153k Owned for 12 yrs, sorry I sold it [/SIGPIC]
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#6
02-27-2014, 05:39 PM
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Alternator
Before you take off the alternator. If it is like the one in my 91 300e you can remove the regulator and brushes with the alternator in place. When my alternator failed the abs and srs light came on then the car died shortly thereafter. The battery light never came on. The brushes wore down to the point where they were no longer making contact and the alternator stops charging. When battery voltage drops to about 10 or so volts the abs and airbag circuits light up because of low voltage. I think the brushes are part of the circuit to light the battery light and since they are no longer making contact the light won't light up.
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