TylerTheDeveloperr@alien.topB to Mechanic Advice@gearhead.townEnglish · 1 year ago

Intake manifold still running after car is turned off. Battery draining (parasitic drain)

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Intake manifold still running after car is turned off. Battery draining (parasitic drain)

TylerTheDeveloperr@alien.topB to Mechanic Advice@gearhead.townEnglish · 1 year ago

3

Title says it all.

I have a 2013 BMW 328i, over the last little while my car has had some battery issues so I thought it was time to get a new battery.

I installed a new battery today, got it programmed and to my surprise I got a message on the dash saying “battery drained while stopped” which is hinting at a parasitic drain.

I opened the hood and it sounded like the intake manifold was still running (heard a vacuum noise) so I disconnected the battery to prevent my car being dead.

Has anyone experienced this before? And if so, would I need a whole new intake or could it possibly be just a bad relay?

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Wanted9867@alien.topB
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1 year ago
Now I’m no bimmer mech but I don’t think there’s anything there to run inside the manifold if your engine is off.
- TylerTheDeveloperr@alien.topOPB
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  1 year ago
  I think it may be a fan of some sort. I think I’m having a similar problem to this person
  
  https://f30.bimmerpost.com/forums/showthread.php?t=1375453

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