Question Details

Meter says chassis battery low and house good. Key won’t turn unless i use house booster. Then immediately the chassis battery reads fully charged. Taken to MB 3 times, they claim Winnebago problem. Check engine light on. Any ideas?

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MBFanatic  1 year 1 month ago

What is the code for the check engine light? 

 

You may have a parasitic current drain problem. The battery gets drained when the car is parket.  If the battery was truly fully charged then you wouldn't need to use a booster / jump start box.