Ignition Problem

M

Mike999

New member
In the morning I try to start my 2016 2.8i Z4 by pushing ignition switch (key in my pocket). Nothing happens, no dash lights, nothing. Push the switch multiple times until the engine turns over. After driving around town, stopping multiple times it restarts on first try of the switch. Problem only occurs after sitting overnight. Had the battery tested, it was a little under 50% so I replaced it. Next morning same problem. Also noticed that I can't open the trunk manually by pulling on external latch or with key fob in the morning. I'm going to replace battery in key fob to eliminate that as a possible problem, but I think something is wrong with the ignition switch, just don't understand why the switch works fine after driving around town. Anyone have any ideas how to fix this issue?
 
Sounds like a battery problem, as you say get the key fob battery checked but I suspect you have something draining the car battery overnight, have it checked by an auto electrician, they should be able to quickly diagnose the problem where you could spend hours trying to find the source
 
Does sound like a battery drain problem in the car. The reason it works after driving around for a while is that the battery is being charged up again by the alternator. Do you have any aftermarket modules or ancillaries fitted?
 
Problem Solved. It was the battery in my key fob. After replacing battery in fob, car has started up normally every morning. I don't understand why, but hopefully this will help future people.
 
Mike999 said:
Problem Solved. It was the battery in my key fob. After replacing battery in fob, car has started up normally every morning. I don't understand why, but hopefully this will help future people.
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That shouldn’t effect it, it’s the immobiliser that would do that & that’s not battery related, the battery just does the remote function. :?
Rob
 
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