is rough idle the start of something?

ExREX · 11-23-2012, 04:14 PM

been like that for a couple of months

lastMleft · 11-23-2012, 06:04 PM

Quote:

Originally Posted by ExREX

been like that for a couple of months

How rough?

ExREX · 11-23-2012, 07:43 PM

not a lumpy idle but not as smooth as i recall

Knightelf · 11-23-2012, 08:56 PM

HPFP maybe...

Dackelone · 11-23-2012, 08:58 PM

How old are your plugs/coils/injectors/HPFP? Codes>?

ExREX · 11-24-2012, 05:11 AM

Car is three years old with only 25000km

Smiley1175 · 11-24-2012, 06:54 AM

It was a sign for me. Eventually did injectors and a while later HPFP.
I kept driving until it failed, went on for months.

Jin-ActiveMotorwerke · 11-24-2012, 07:36 AM

It can either be the high pressure fuel pump or the injectors.
Depends on the production date. If you have your car service in a dealership, they would have checked your injectors and replaced some of them in the recall.
It's best to have the fault check once you have an engine light come up.

1BimmerNut · 11-25-2012, 05:30 PM

Quote:

Originally Posted by ExREX

Car is three years old with only 25000km

Similar story I think....3 years and 18k...noticed a couple of extra cranks to fire then lumpy idle with an occasional bigger drop in rhythm.

BM should cover some of this surely? Its a known issue isn't it?? Otherwise what's it cost

Agree though... do nothing until it spits the dummy

11-23-2012, 04:14 PM	#1
ExREX Private First Class 4 Rep 146 Posts Drives: 135i & x3 30d Join Date: Nov 2009 Location: Sydney, Australia iTrader: (0)	is rough idle the start of something? been like that for a couple of months
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11-23-2012, 07:43 PM	#3
ExREX Private First Class 4 Rep 146 Posts Drives: 135i & x3 30d Join Date: Nov 2009 Location: Sydney, Australia iTrader: (0)	not a lumpy idle but not as smooth as i recall
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11-23-2012, 08:56 PM	#4
Knightelf Captain 54 Rep 888 Posts Drives: M235i Join Date: Oct 2009 Location: Brisbane iTrader: (0) Garage List 2011 BMW 135i [0.00]	HPFP maybe...
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11-23-2012, 08:58 PM	#5
Dackelone European Editor 5318 Rep 21,475 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	How old are your plugs/coils/injectors/HPFP? Codes>? __________________ Dackel's European Delivery Museum Guide 1Addicts at Sella 3.0 September, 2016
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11-24-2012, 05:11 AM	#6
ExREX Private First Class 4 Rep 146 Posts Drives: 135i & x3 30d Join Date: Nov 2009 Location: Sydney, Australia iTrader: (0)	Car is three years old with only 25000km
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11-24-2012, 06:54 AM	#7
Smiley1175 Captain 146 Rep 930 Posts Drives: M2 Join Date: Jul 2011 Location: Melbourne iTrader: (0)	It was a sign for me. Eventually did injectors and a while later HPFP. I kept driving until it failed, went on for months.
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11-24-2012, 07:36 AM	#8
Jin-ActiveMotorwerke Private First Class 1 Rep 126 Posts Drives: BMW E46 330i Join Date: Apr 2012 Location: Melbourne iTrader: (0)	It can either be the high pressure fuel pump or the injectors. Depends on the production date. If you have your car service in a dealership, they would have checked your injectors and replaced some of them in the recall. It's best to have the fault check once you have an engine light come up.
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