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  #1  
Old 05-10-2022, 02:05 PM
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Interesting cranking/ignition feature…

Kinda a random post,

For the last year I would start the E53 the same way as my E46 where I’d toggle the key on until it fires up. The other day I noticed the X5 will continue to crank and start if I briefly toggle the key to the start position. Is my X5 possessed or is this a feature? I assume it’s a feature but I’ve never seen a reference to it. Can someone confirm their X5 has the same feature?

As I said, kinda a odd post.

Cheers, E53Envyy
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Old 05-10-2022, 02:12 PM
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It's a feature called convenient/automatic start on these V8 engines. Ignition switch activates a separate starter relay which stays activated until the engine starts.
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Old 05-10-2022, 02:40 PM
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Tip start. Most new cars have them. Nice to see it being used so far back. Would be nice if 3.0i had it too.
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Old 05-10-2022, 02:50 PM
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Quote:
Originally Posted by X5chemist View Post
Nice to see it being used so far back.

My 1995 750 has this
neither one of my 3 series have it, nor does my 5 series touring, but both my x5's my 540 and 750 do.
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Old 05-10-2022, 03:03 PM
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This feature is tied to engine control unit version, not the chassis. 4 or 6 pot engines don't have this option.
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Old 05-10-2022, 03:04 PM
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Quote:
Originally Posted by Clavurion View Post
It's a feature called convenient/automatic start on these V8 engines. Ignition switch activates a separate starter relay which stays activated until the engine starts.
Ahh, thanks! Sounds like newer BMWs with push-to-start use very similar technology.

I remember a thread over on e46fanatics where someone retrofit push-to-start but never elaborated on how they did it. Maybe it’s not so difficult with the right EWS module and coding. Edit: and the relay as well
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Old 05-10-2022, 03:08 PM
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This feature has nothing to do with EWS module. It works the same regardless of convenient start.
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Old 05-10-2022, 07:44 PM
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This feature has nothing to do with EWS module. It works the same regardless of convenient start.
Yeah I understand, when I was referring to the EWS needing adjustments that would be for push-to-start when the key is in your pocket.
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Old 05-10-2022, 07:56 PM
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The push to start models the convenience start is still an option it's just on by default.
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