004A2E

Chief Orman · 07-26-2015, 02:34 PM

Just got this error code related to my glow plug in cylinder 5. How serious is this? car does not run any differently. can this be the excuse I have been looking for to force the dealer check and see whether or not I have CBU?

Lexx.md · 07-27-2015, 09:12 AM

The question is not 'whether or not I have CBU?'.
The right question is: 'I know that i have it, the question is how much and how bad it is'

GreekboyD · 07-27-2015, 09:33 AM

They won't consider that CBU. At most they'll change out your six glow plugs and control module.

Hoooper · 07-27-2015, 02:44 PM

They do have to pull the intake to get to do the work though, have them take some pictures or ask to inspect it while its off.

Chief Orman · 07-27-2015, 10:03 PM

Great idea

Si-M240i · 07-28-2015, 01:36 AM

I just had all 6 glow plugs changed and the car idles better when cold and feels a bit more responsive again as it had started to feel a bit lazy low down. Apparently the glow plugs are not just used on start up, they also as used until the car is upto temperature and also for regenerations.

The weirdest part is that now my glow plugs have been changed my car revs about 200-300rpm higher before changing gear automatically now, when under full throttle. I am guessing it was in a "semi" limp mode. If the plugs are failed / failing, the car wont regen properly so it must reduce the rev limiter and very slightly the power too. Hence the car felt slightly less responsive.

Lexx.md · 07-28-2015, 09:36 AM

Most likely they did cleanup something on the way, and have cleaned all other codes, even hidden ones.
This is why you seeing differences.

I do not see the reason to start glow plugs on summer. From my time with diesel Ford i remember on winter there was a sign that glow plugs are on, so we were supposed to way until it will be gone before starting the engine.
On 335d on winters i have notice a delay between button press and the starter start turning, probably for glow plugs to warm up.

07-26-2015, 02:34 PM	#1
Chief Orman Major 671 Rep 1,442 Posts Drives: 335D 2010 Join Date: Jun 2013 Location: East Bay, Nor Cal iTrader: (0)	004A2E Just got this error code related to my glow plug in cylinder 5. How serious is this? car does not run any differently. can this be the excuse I have been looking for to force the dealer check and see whether or not I have CBU?
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07-27-2015, 09:12 AM	#2
Lexx.md Second Lieutenant 38 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	The question is not 'whether or not I have CBU?'. The right question is: 'I know that i have it, the question is how much and how bad it is'
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07-27-2015, 09:33 AM	#3
GreekboyD Brigadier General 411 Rep 3,049 Posts Drives: 2009 BMW 335d Join Date: Jan 2012 Location: Toronto, ON, Canada iTrader: (0) Garage List 2009 BMW 335d [8.00]	They won't consider that CBU. At most they'll change out your six glow plugs and control module.
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07-27-2015, 02:44 PM	#4
Hoooper Colonel 213 Rep 2,210 Posts Drives: 335D Join Date: Jun 2013 Location: Petaluma, CA iTrader: (0)	They do have to pull the intake to get to do the work though, have them take some pictures or ask to inspect it while its off.
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07-27-2015, 10:03 PM	#5
Chief Orman Major 671 Rep 1,442 Posts Drives: 335D 2010 Join Date: Jun 2013 Location: East Bay, Nor Cal iTrader: (0)	Great idea
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07-28-2015, 01:36 AM	#6
Si-M240i Major 137 Rep 1,450 Posts Drives: M240i LCI Join Date: Aug 2008 Location: England iTrader: (0)	I just had all 6 glow plugs changed and the car idles better when cold and feels a bit more responsive again as it had started to feel a bit lazy low down. Apparently the glow plugs are not just used on start up, they also as used until the car is upto temperature and also for regenerations. The weirdest part is that now my glow plugs have been changed my car revs about 200-300rpm higher before changing gear automatically now, when under full throttle. I am guessing it was in a "semi" limp mode. If the plugs are failed / failing, the car wont regen properly so it must reduce the rev limiter and very slightly the power too. Hence the car felt slightly less responsive. __________________ M240i LCI (Mineral Grey):- M2 Door Mirrors, M2 Black Kidney Grills, Lower grille inserts, MP Exhaust, Dinan Carbon Fibre CAI, hot climate intake elbow
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07-28-2015, 09:36 AM	#7
Lexx.md Second Lieutenant 38 Rep 291 Posts Drives: e90 335D Join Date: Jul 2015 Location: Boston iTrader: (0)	Most likely they did cleanup something on the way, and have cleaned all other codes, even hidden ones. This is why you seeing differences. I do not see the reason to start glow plugs on summer. From my time with diesel Ford i remember on winter there was a sign that glow plugs are on, so we were supposed to way until it will be gone before starting the engine. On 335d on winters i have notice a delay between button press and the starter start turning, probably for glow plugs to warm up.
	Appreciate 0 Quote