190E (W201) 1982-1993: 190E 2.3, 190E 2.6, 190E 2.3-16, 190E 2.5-16, 190 D 2.2, 190 D 2.5, 190 D 2.5 TURBO, 190E 2.5-16 Evolution I, 190E 2.5-16 Evolution II

1986'. 190 e voltage problems

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Old Sep 12, 2019 | 06:50 PM
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190 e
Exclamation 1986'. 190 e voltage problems

I'm having a problem with my car and I am hoping some direction on what to do next.
it seems like after replacing the alternator the belt tensioner and the belt, my car is not producing enough voltage while idling when everything is on.

where can i check next? what can i do to help me?


thanks in advance



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Old Sep 12, 2019 | 08:26 PM
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2017 GLE350 4MATIC
Welcome! Please post a photo of the 190. There is a model-specific forum for your vehicle, there are lots of helpful owners who can suggest options, if you post your question there.
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Old Sep 13, 2019 | 12:46 AM
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bone stock E55 AMG
moved to W201 forum...
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Old Sep 14, 2019 | 03:40 PM
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Check battery

check battery and connections. Hows it start? Get a ohm meter and check idling voltage.
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Old Sep 21, 2019 | 11:32 AM
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C63s 2015 & ML350 Bluetec 2012
Hi,
1st check battery voltage and battery health, see if the alternator is charging the battery. My opinion is that you have a bad voltage regulator that goes behind the alternator. This is the part https://www.autohausaz.com/pn/110072...0aAgmfEALw_wcB
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Old Sep 22, 2019 | 08:32 AM
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optimusprime m1's Avatar
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From: Worcestershire UK
W124 260E
Do you see the red check light on start up ,,and is it extinguished after the engine starts up .If no charge light showing the bulb is shot and the alternator wont charge the battery till bulb in the dash is replaced ,,it makes up the charging circuit .
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