Sebring Diesel Randomly Dies, Start-Stop System Failure

Had similar issues with my 2009 Chrysler 300C diesel. Engine stalling occurred out of nowhere while driving, especially during slow traffic. The primary cause was a failing battery system affecting the engine start functionality. The main symptoms matched exactly: warning lights, unusual shutdowns, and false idle stop activations. The battery tested at critically low voltage, causing the engine control unit to malfunction. This triggered multiple error codes and unpredictable engine behavior. The repair required: Full battery system diagnosis, Replacement of the main battery, Recalibration of the engine control module, Testing of the alternator and charging system This was a serious issue requiring immediate attention, as continuous driving with a defective battery can damage other electrical components and create unsafe driving conditions due to unexpected engine stalling. Key checkpoints before garage visit: Battery age and condition, Alternator belt tension, Clean battery terminals, Check for parasitic drain, Verify alternator output The battery system is central to modern diesel engine management. When it fails, it often mimics various engine and electrical faults, making diagnosis tricky without proper testing equipment.

Thanks for sharing that detailed solution. My Sebring had almost identical symptoms with the unusual engine shutdowns and start-stop system acting up. I had the full battery system replaced along with a new alternator since mine was showing signs of wear. Been wondering about the cost others paid for similar repairs. Has everything been working fine since your fix? What was your total repair cost? Would be helpful to know if any related issues popped up later.

Got my Chrysler 300C back from the mechanic about 6 months ago and all problems were fully resolved. The start-stop system works perfectly now, no more unusual shutdowns or warning lights. Total cost was 290€ for diagnosing and fixing the heavily discharged battery issue. The mechanic explained that a failing car battery can cause multiple system malfunctions, especially with the engine start features. My starter motor now engages smoothly every time, and the idle stop function activates normally in traffic. The comprehensive battery system check they performed caught the problem before it could damage other components. I track my fuel economy closely, and it actually improved slightly after the repair since the electrical system is working properly again. No related issues have occurred since the fix. Regular voltage checks show the charging system is maintaining proper levels, and all electrical systems are functioning as designed.

I took my Sebring to a new mechanic last week after getting this helpful advice. The diagnosis matched exactly, a failing car battery was causing the engine stalling and electrical issues. They performed a complete charging system check and found the alternator was also showing early wear. Total repairs came to 450€ including: New high-performance car battery, Alternator replacement, System diagnostic testing, ECU recalibration The engine start function now works perfectly with no more unusual shutdowns. The warning lights cleared up immediately after the repair. My mechanic explained that modern vehicles are very sensitive to battery voltage issues, which can trigger all sorts of false warnings and malfunctions. The car runs great now after about a week of regular driving. No more stalling or electrical gremlins. Fuel economy has even improved slightly since the charging system is working properly. Really glad I got this sorted before any additional damage occurred. I appreciate the advice that helped pinpoint the issue before visiting the shop. Saved time and helped avoid unnecessary repairs by focusing on the real problem.