Battery Change and Warning Light and now 12.5 volts

wrightkarl

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210 E320, E430 - 211 320CDi & CDi Sport - E350CDi Sport - 215 CL500 - R129 SL500 - R230 SL500
HI there

Just changed the Aux 1 battery on my R230 as it was a bit sluggish starting. Now it starts much better but I've got the Red Warning light of doom but also the alternator is now only giving out 12.5 volts. It was fine so I assume there is a typically Merc bit of sophistication that needs attending to...

Any pointers ?

Thanks
 
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wrightkarl

wrightkarl

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210 E320, E430 - 211 320CDi & CDi Sport - E350CDi Sport - 215 CL500 - R129 SL500 - R230 SL500
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HI there

Just changed the Aux 1 battery on my R230 as it was a bit sluggish starting. Now it starts much better but I've got the Red Warning light of doom but also the alternator is now only giving out 12.5 volts. It was fine so I assume there is a typically Merc bit of sophistication that needs attending to...

Any pointers ?

Thanks
Ignore me ! The only thing that needed resetting was my brain. I locked the car and cycled the start stop via the key and not the keyless and now we're back to normal, no warnings and a healthy 14.2volts :¬)

Just goes to show how jumping to conclusions can lead us down the wrong path
 

mattkh

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Ignore me ! The only thing that needed resetting was my brain. I locked the car and cycled the start stop via the key and not the keyless and now we're back to normal, no warnings and a healthy 14.2volts :¬)

Just goes to show how jumping to conclusions can lead us down the wrong path
You mean the red warning light has gone OFF.
But, what is the alternator output now..?
 
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wrightkarl

wrightkarl

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210 E320, E430 - 211 320CDi & CDi Sport - E350CDi Sport - 215 CL500 - R129 SL500 - R230 SL500
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wrightkarl

wrightkarl

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Dec 12, 2011
Messages
168
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Location
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Your Mercedes
210 E320, E430 - 211 320CDi & CDi Sport - E350CDi Sport - 215 CL500 - R129 SL500 - R230 SL500
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