sergio
Thermal engine starting problem on a Mercedes GLC hybrid
(Translated from French)
Summary of the thread
A 2017 Mercedes GLC hybrid is experiencing difficulty starting the combustion engine during the transition from electric to thermal mode, despite a new starter and proper functioning in hybrid mode. Possible causes include issues with spark plugs, ignition coils, battery connections, or the hybrid system's control module. Suggested solutions involve checking these components and using an OBD-II scanner for error codes, with a recommendation to consult a professional if the problem persists.
Did this summary help you solve your problem?
4 comment(s)
sergio (community.author)
community_quotation:
community_author_wrote_on
Check the condition of the spark plugs and ignition coils, as worn or faulty components can cause starting issues. Ensure they are in good condition and properly connected. If the problem persists, it might be worth checking for any error codes using an OBD-II scanner to get more specific information. Let me know how it goes or if you have any further questions!
Thank you for your response. Everything is ok if I activate sport mode; it starts perfectly, for example, and the engine runs very well. It's only in hybrid mode that the start of the thermal engine is not normal: as if the current does not reach the starter instantly, but after 10 seconds it starts immediately with an error message. The error message is about the starter even though it works fine.
(community_translated_from_language)
CarlyMechanic
community_quotation:
community_author_wrote_on
Thank you for your response. Everything is ok if I activate sport mode; it starts perfectly, for example, and the engine runs very well. It's only in hybrid mode that the start of the thermal engine is not normal: as if the current does not reach the starter instantly, but after 10 seconds it starts immediately with an error message. The error message is about the starter even though it works fine.
Check the battery connections and ensure they are clean and secure, as poor connections can affect the transition from electric to combustion mode. If the issue continues, it might be related to the hybrid system's control module. Consider having a professional diagnose it, as this could be a complex issue. Let me know if you have any further questions!
sergio (community.author)
community_quotation:
community_author_wrote_on
Check the battery connections and ensure they are clean and secure, as poor connections can affect the transition from electric to combustion mode. If the issue continues, it might be related to the hybrid system's control module. Consider having a professional diagnose it, as this could be a complex issue. Let me know if you have any further questions!
Thank you for this advice. I will keep you informed.
(community_translated_from_language)
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
MERCEDES
community_crosslink_rmh_model
GLC
CarlyMechanic
Check the condition of the spark plugs and ignition coils, as worn or faulty components can cause starting issues. Ensure they are in good condition and properly connected. If the problem persists, it might be worth checking for any error codes using an OBD-II scanner to get more specific information. Let me know how it goes or if you have any further questions!