christianlight8
V50 Automatic Transmission Shifting Issue
Summary of the thread
A 2009 Volvo V50 with 41,595 km experienced automatic transmission issues, including erratic gear changes and emergency mode activation, accompanied by a transmission indicator light. Diagnostics indicated worn-out transmission oil and undervoltage as potential causes. The solution involved replacing the transmission oil and re-flashing the software, which resolved the issue.
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4 comment(s)
christianlight8 (community.author)
Yes, 'implausible shifting behavior' means erratic gear changes and delays. It locks into 3rd gear in emergency mode. I've seen voltage drops below 12V. Is that what you saw with your Opel Insignia?
sarah_guenther48
Yes, those were my exact symptoms. A diagnostic check showed similar voltage drops and issues with the transmission control module, which is very sensitive to voltage fluctuations and hydraulic fluid quality. Given the voltage drops, I'd suggest getting the automatic transmission and electrical system inspected by a qualified workshop ASAP.
christianlight8 (community.author)
Thanks for the confirmation and advice. I consulted a workshop, and they confirmed the automatic transmission oil was worn out. They replaced the oil and re-flashed the software. The repair cost 240€. The issue is now resolved. Thanks for your help.
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VOLVO
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V50
sarah_guenther48
I had a similar issue with my 2014 Opel Insignia. By 'implausible shifting behavior', do you mean erratic gear changes or delays? Does it lock into a specific gear in emergency mode? What voltage levels are you seeing? It could be a hydraulic fluid or electrical problem.