Does not hold date
Thread Starter
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Joined: Jan 2010
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My 550i (2008) does not hold the correct date. It is a CPO and I bought it in January
It is the third time I have to reset the date.
Is it under warranty? What should I do? (I will call dealer tomorrow)
It is the third time I have to reset the date.
Is it under warranty? What should I do? (I will call dealer tomorrow)
Contributors
Joined: Mar 2004
Posts: 4,672
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From: New Orleans, LA USA
My Ride: E90 M3
Model Year: 2011
Sounds like the battery. Or more likely your dealer will say that you have "unfavorable driving patterns". This is their way of saying you don't drive enough to keep the battery charged. Of course it is BS. But it could be the beginnings of the battery going bad or an issue with some module not allowing the car to sleep properly, draining the battery. I have had this message several times on my '08 550 as well and occasionally get the Increased Battery Discharge message.... I just make sure to take the car out for one or two good highway runs on the weekends and that keeps the problem at bay.
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Joined: Jan 2008
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From: So. Cal (SFV)
My Ride: 2011.5 Alpine White E90 M3 | Black Novillo Leather | Carbon Fiber Leather Trim | ZCP | ZP2 | M-DCT | Navigation | Moonroof | 6FL Mods: TMS 12.5mm spacers all around l Hawk HPS Brake Pads l OEM M3 Edition Grills l Paint Matched Side Gills l Key Hole D
+1 for a battery issue. I had the same problem, time and date kept needing to be set every few weeks, lasted for about 6-8 moths. Problems began ~2yr after acquisition. Finally had a CEL, dealer replaced the battery and no more problems. It was replaced under warranty.
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Joined: Mar 2004
Posts: 17,310
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From: Pittsburgh, PA USA
My Ride: G30 M550i
Model Year: 2018
Don't forget that it could be that the battery is fine but something else isn't allowing the car to enter or remain in sleep mode... (There are a ton of threads about this out there.)
Are you getting any warning messages when you first turn on the key?
Are you getting any warning messages when you first turn on the key?
Thread Starter
Members
Joined: Jan 2010
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I do not get any warnings when i turn the "key" on. (just the triangle saying that i need to reset the time/date and once inawhile there is a clock that shows up...I guess it is when the time/date goes crazy)
I drive my car every weekends (i have 4 cars and 2 motorcycles and the BMW is the weekend car), and since i bought the car i noticed delay in the date, (up to one week drift )
and yes, i called the dealer and of course he told me the BS about not driving the car enough. I told him that only my BMW has this problem and it should not be like that with a car i just bought a few months ago .
I have an appointement May 20th...we will see...they say it is work under warranty.
What is a CEL?
I drive my car every weekends (i have 4 cars and 2 motorcycles and the BMW is the weekend car), and since i bought the car i noticed delay in the date, (up to one week drift )
and yes, i called the dealer and of course he told me the BS about not driving the car enough. I told him that only my BMW has this problem and it should not be like that with a car i just bought a few months ago .
I have an appointement May 20th...we will see...they say it is work under warranty.
What is a CEL?
Members
Joined: Sep 2008
Posts: 186
Likes: 0
From: San Diego, CA
My Ride: 2008 550i Sport (6-speed)
I do not get any warnings when i turn the "key" on. (just the triangle saying that i need to reset the time/date and once inawhile there is a clock that shows up...I guess it is when the time/date goes crazy)
I drive my car every weekends (i have 4 cars and 2 motorcycles and the BMW is the weekend car), and since i bought the car i noticed delay in the date, (up to one week drift )
and yes, i called the dealer and of course he told me the BS about not driving the car enough. I told him that only my BMW has this problem and it should not be like that with a car i just bought a few months ago .
I have an appointement May 20th...we will see...they say it is work under warranty.
What is a CEL?
I drive my car every weekends (i have 4 cars and 2 motorcycles and the BMW is the weekend car), and since i bought the car i noticed delay in the date, (up to one week drift )
and yes, i called the dealer and of course he told me the BS about not driving the car enough. I told him that only my BMW has this problem and it should not be like that with a car i just bought a few months ago .
I have an appointement May 20th...we will see...they say it is work under warranty.
What is a CEL?
Contributors
Joined: Apr 2010
Posts: 578
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From: Rijswijk, The Netherlands
My Ride: 2005 E60 523 executive
20"ASA / Bi-Xenon / Full M-tech / LED Angel Eyes / Matte Black Kidney's / LED Side Markers
I definitely have to move to the US 
Good luck with the dealer...sounds like they are just as lazy there as they are over here!
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Joined: Oct 2007
Posts: 11,084
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From: Thousand Oaks, California
My Ride: 2008 550i Jet Black on Black Leather, SAT with Paddles, Logic 7, Comfort Seats, NAV, Sport Package, PDC, Xenons, Sirius, Trinity 12W LED Angel Eyes, RPi GT Exhaust, M rear spoiler, ACS Roof Spoiler, Tinted Tail Lights, Bimmian Carbon Fiber Pillar Trim, Bimmian Shadow 550i emblem, RPi Scoop, E60 Forum Cling, Mtec bulbs in fog lights, Mtec 2W LED for License Plate Light Bulbs, K&N Filter, Bimmian LED Smoked Side Markers, Blackout roundels, Carbon Fiber Kidney Grills.
Retired Rides - 1989 325i convertible, 1995 M3, 2002 X5, 2005 545i, 2008 X5 (Lemon)
Battery is to blame! 
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Joined: Mar 2004
Posts: 2,303
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From: Long Island, NY
My Ride: 2008 535i: June 6th start build, complete June 17th, at NY Port July 5th, at dealer July 10th, took delivery Friday July 13- Plantimum Bronze/Natural Brown Leather/Light Poplar, Sport Package, Sport Auto, Active Steering, Premium Package, CWP & PDC. Dinan Performance Software 384hp & 421 ft/lbs.
I reset my date a few times until I realized i was 12 hours out of sync because of am/pm, so the date was changing everyday at 12 noon.