Limp mode...due to alternator?

ihtfp06 · 10-28-2014, 03:01 AM

Last week my M3 started giving me the reduced power, DSC, amber brake light and 4500 rpm redline periodically. It would either happen after about 15-30 minutes of driving, or immediately if it was taken to high revs. Have a maxcare warranty, so I dropped it off and the bmw dealership for diagnosis.

The dealer is now telling me that its due to the alternator. Does this sound right to anyone? I was expecting to hear it was the idle control valve, as the symptoms I was getting are typical for that

ihtfp06 · 11-01-2014, 02:49 AM

Update:
After fixing the alternator and replacing some gaskets, they discovered it was tripping due to the throttle actuator valve. Of course, they still need to wait for MaxCare to come out again and approve the repair. I'm enjoying my Kia Soul rental in the meantime.

SenorFunkyPants · 11-01-2014, 03:51 AM

Quote:

Originally Posted by ihtfp06

I'm enjoying my Kia Soul rental in the meantime.

Living the dream!!

BESTNDA416 · 11-01-2014, 10:36 AM

Ye I just did both my throttle actuator recently

10-28-2014, 03:01 AM	#1
ihtfp06 New Member 4 Rep 18 Posts Drives: 2008 M3 Convertible Join Date: May 2014 Location: Tampa iTrader: (0)	Limp mode...due to alternator? Last week my M3 started giving me the reduced power, DSC, amber brake light and 4500 rpm redline periodically. It would either happen after about 15-30 minutes of driving, or immediately if it was taken to high revs. Have a maxcare warranty, so I dropped it off and the bmw dealership for diagnosis. The dealer is now telling me that its due to the alternator. Does this sound right to anyone? I was expecting to hear it was the idle control valve, as the symptoms I was getting are typical for that __________________ 2006 Lotus Elise (retired) 2009 Mazda RX-8 (retired) 2009 Infiniti G37x Coupe (retired) 2011 BMW 135i Convertible DCT (Wife's) 2008 BMW M3 Convertible 6MT
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11-01-2014, 02:49 AM	#2
ihtfp06 New Member 4 Rep 18 Posts Drives: 2008 M3 Convertible Join Date: May 2014 Location: Tampa iTrader: (0)	Update: After fixing the alternator and replacing some gaskets, they discovered it was tripping due to the throttle actuator valve. Of course, they still need to wait for MaxCare to come out again and approve the repair. I'm enjoying my Kia Soul rental in the meantime. __________________ 2006 Lotus Elise (retired) 2009 Mazda RX-8 (retired) 2009 Infiniti G37x Coupe (retired) 2011 BMW 135i Convertible DCT (Wife's) 2008 BMW M3 Convertible 6MT
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11-01-2014, 10:36 AM	#4
BESTNDA416 Captain 72 Rep 706 Posts Drives: ESS VT2 650 E92 Join Date: Sep 2012 Location: Toronto iTrader: (4) Garage List 2008 E92 M3 [9.66]	Ye I just did both my throttle actuator recently __________________ ESS VT2 650\|KW V3\|Yellow Brembo BBK\|Mag Blue Te37\|Toyo R888\|RD sways\|Akrapovic EVO Exhaust w/cf tips\|Aem Gauges\|LCI Taillights\|Mode Carbon GT4 & LM Diffuser EUROCHARGED CANADA
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