G30 LCI 530i pops cold start

mariopl · 12-13-2021, 10:29 AM

Hi guys,
Today after one year of riding G30 LCI 530i it turned out my 5 series can do pops and bangs on cold start!
However, even if in sport mode it doesn’t do anything.
Is it some hidden feature? How to unlock it?
My new Z4 20i also has pops when cold and they disappear aftereards.

Boosted_8 · 12-13-2021, 12:05 PM

I expect this is due to the open wastegate and high idle fueling for cold starts. It's used to get the emissions systems hot and ready to go before setting off. You would need a remapped ECU to get similar effects upon demand.

mariopl · 12-13-2021, 12:41 PM

Quote:

Originally Posted by Boosted_8

I expect this is due to the open wastegate and high idle fueling for cold starts. It's used to get the emissions systems hot and ready to go before setting off. You would need a remapped ECU to get similar effects upon demand.

So fusebox or cable next to exhaust wont help?

12-13-2021, 10:29 AM	#1
mariopl Second Lieutenant 116 Rep 219 Posts Drives: 2024 520xd, 2023 i4 M50 Join Date: Oct 2018 Location: Poland, EU iTrader: (0)	G30 LCI 530i pops cold start Hi guys, Today after one year of riding G30 LCI 530i it turned out my 5 series can do pops and bangs on cold start! However, even if in sport mode it doesn’t do anything. Is it some hidden feature? How to unlock it? My new Z4 20i also has pops when cold and they disappear aftereards.
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12-13-2021, 12:05 PM	#2
Boosted_8 Captain 436 Rep 749 Posts Drives: M550i Join Date: Apr 2021 Location: UK iTrader: (0)	I expect this is due to the open wastegate and high idle fueling for cold starts. It's used to get the emissions systems hot and ready to go before setting off. You would need a remapped ECU to get similar effects upon demand.
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