SEBO2009
Problems with BMW 5: DSC control unit undervoltage and poor cold start
(Translated from German)
Summary of the thread
The BMW 5 is experiencing issues with low battery voltage and poor cold starts, potentially linked to the DSC control unit undervoltage. The primary suspect is a weak battery, which can cause low voltage readings and starting difficulties, especially in cold weather. It is recommended to check the battery voltage with a multimeter, aiming for around 12.6 volts when the car is off. If the battery is not the issue, further investigation into wiring or connectors may be necessary, particularly concerning the communication error between the DME-DDE and IHKA systems.
Did this summary help you solve your problem?
3 comment(s)
SEBO2009 (community.author)
community_quotation:
community_author_wrote_on
It does sound like your battery could be the issue. A weak battery can cause low voltage readings and poor starting, especially in cold weather. I suggest you start by checking the battery. You can do this by using a multimeter to measure the voltage. A fully charged battery should read around 12.6 volts when the car is off. If it's lower, you might need a new battery. Please let us know how it goes and if you have any further questions.
00E714 Message (battery voltage, Ox3BE) faulty, receiver IHKA, transmitter DME-DDE It also shows me the error. What could it be
(community_translated_from_language)
CarlyMechanic
community_quotation:
community_author_wrote_on
00E714 Message (battery voltage, Ox3BE) faulty, receiver IHKA, transmitter DME-DDE It also shows me the error. What could it be
This error code suggests a communication issue between the DME-DDE (Digital Motor Electronics - Digital Diesel Electronics) and the IHKA (Integrated Automatic Heating/Air Conditioning System). This could be due to a weak battery, as previously suspected, or a problem with the wiring or connectors. I recommend you first address the potential battery issue. If replacing the battery doesn't resolve the problem, you may need to have the wiring and connectors checked by a professional mechanic. Please keep us updated on your progress.
rmh_community_comment_box_header
community_crosslink_scanner_headline
community_crosslink_scanner_intro
community_crosslink_scanner_title
community_crosslink_scanner_price
community_crosslink_rmh_headline
community_crosslink_rmh_intro
community_crosslink_rmh_title
community_crosslink_rmh_subtitle
community_crosslink_rmh_brand
BMW
community_crosslink_rmh_model
5
CarlyMechanic
It does sound like your battery could be the issue. A weak battery can cause low voltage readings and poor starting, especially in cold weather. I suggest you start by checking the battery. You can do this by using a multimeter to measure the voltage. A fully charged battery should read around 12.6 volts when the car is off. If it's lower, you might need a new battery. Please let us know how it goes and if you have any further questions.