bmw 645 ci 2005
My car did not start a few times looks like it was low on battery no cranking at all. hooked up
a charger to car and it ran started fine for a few days then not crank again( i take repeated
short trips to work each day 1 to 3 miles of driving only)
I jump start it last time at night went into limp mode and was getting error code p0335 and
p1727
when i had the code read . The triple a battery guy came and check the battery and with the
following results
BATTERY TEST RESULTS:
OE CCA: 850CCA
MEASURED: 776CCA
RATED: 850CCA
TEMPERATURE : 71 f
VOLTAGE: 12.05 V
AND IT SAYS YOUR BATTERY IS IN GOOD CONDITION , BUT IT IS A LITTLE DISCHARGFED . PLEASE
RECHARGE OUR BATTERY AND CONTINUE WITH NORMAL SERVICE
STARTER TEST:
CRANKING NORMAL
VOLTAGE: 11.19V
AMPS:125.2A
TIME: 3.48 S
CHARGING SYSTEM TEST:
NO PROBLEMS
NO LOAD 13.90 V, 72.4 A
LOADED 12.97V, 132.0A
with that in mind
the car started once and ran in "limp mode"
then we turned it off and would not start again and computer gave code " p0335 and p1727"
no matter what we do or jump start the car by the AAA guy it would not start so we ended up
calling a flat bed to tow it home.
Next day the car started fine and was not in limp mode
so i drove it to work and it was fine . Keep in mind i drive 1 mile to work each day only so
car is driven a few miles a day only.
So when i got home i hook the car up to my battery charger charged it for couple hours until it
is FULL! Started fine again and ran ok took it out ran it hard a few times and I got
warning message on my screen all of a sudden
Warning #1
"Transmission Malfunction "
"Gear can be engaged without depressing the brake. Drive moderately!Have the system checked by
the dealer,
then, warning #2
"Increased Emmissions "warning was shown right after that
Emissions - related malfunction . Have the system checked by your bmw center as soon as
possible
seems like the car is in limp mode and power is limited right after that...
Please help and let me know how to diagnose this problem? Can it just be a battery going bad
that caused all these errors? THANK YOU
Any one or any experts out there can help? My car just all of a sudden stalled at a stop sign again the other night and won't restart till 5 to 10 minutes after many retries? Can it be just the battery or the crank position sensor error causing the stall? Please help
my car does the dsame thing it will c crank then die if the batter has no charge to it I think its a drain any luck getting an answer?
I was talking to a mechanic who had many years experience with BMW.
I had been monitoring my battery voltage and noticed it did not begin to charge until I had done several km's.
He told me that the alternator will not begin charging until the engine has warmed up.
Maybe your short trips means that the battery is not being charged enough.
Last edited by kavala; 02-02-2017 at 10:17 PM.
A mechanic, who had many years experience with BMW, told me that
the alternator will not begin to charge until the engine is hot.
I had been monitoring my battery voltage and noticed that it did
not begin to charge until after about 6km's.
Maybe because of your short trips, your battery is not being charged enough ???
I had similar messages and I replaced the battery and it has been fine. It never refused to crank or start, but did get various messages and once or twice limp mode.
I have a similar problem and I took it to the dealer and I am also replacing the IVM module. Fixed!
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