Battery drain from 2018 Mercedes Sprinter in Holiday Rambler RV

Asked by Jul 12, 2019 at 10:34 AM about the 2018 Mercedes-Benz Sprinter 2500 144 V6 High Roof Passenger Van

Question type: Maintenance & Repair

My engine battery drains to being unable to start in less than 2 days. My dealer
is telling me this occurs in an Mercedes Sprinters and that I need to disconnect
the battery with the disconnect next to the gas pedal whenever I turn off the
vehicle for longer than a day. Is what they are telling me correct?

2 Answers

77,335

I would expect that a Hyundai dealer might say this, but not a Mercedes dealer. Your car should not have any problems if left unrun for several days. If it's more than a week or so, you might want to buy a battery tender. But for two days unused, I would suspect the battery is weak or you have a parasitic draw on the electrical system and the dealer doesn't want to spend time to fix this under warranty.

1 people found this helpful.
56,355

Disconnect the battery longer than one day...that's baloney...Find another dealer. It's an RV, you should have a battery isolator, if it's working correctly this should not happen.

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