Firing on five, slight wobble and holding gears longer?

coopersim · 10-31-2012, 10:41 AM

This last few mornings I've noticed on first start the engine sounds and feels (shake) like it's firing on one less cylinder

I've also noticed over the last few weeks a very slight surging especially when on cruise control, as if the engine is revving up and down in tiny amounts

Plus, fourth to fifth gear doesn't change as freely, and the gearbox doesn't feel 'right' somehow

I know this is a lot, but any ideas what could be causing these issues ??

coopersim · 11-19-2012, 10:33 AM

I'm still getting this, and notice it more when I'm on cruise, like a slight hunting, sensation, a friend said he thought it might be an air leak, any suggestions at all?

coopersim · 11-19-2012, 10:53 AM

Could this be a spark plug issue? Do Diesels have sparks?

oldbilly · 11-19-2012, 10:53 AM

could be a numbers of things, alhough I'd be looking at injectors 1st, what's the service history?

coopersim · 11-19-2012, 10:54 AM

Full BMW service history, 3,300 miles to next service (oil change) Last service was rear brake pads. 52,000 miles currently on the clock

phil200tdi · 11-19-2012, 11:20 AM

Any codes?

Take it to a good independent.

coopersim · 11-19-2012, 11:26 AM

No errors, is there nothing I can check?

335DEE · 11-19-2012, 11:39 AM

Quote:

Originally Posted by coopersim

No errors, is there nothing I can check?

I would have suggested a glowplug or 2 gone down for the wobble in the morning.

What you using to check for errors ?

coopersim · 11-19-2012, 11:44 AM

The Check Control option in the OBD

mistryn · 11-19-2012, 12:19 PM

Quote:

Originally Posted by coopersim

Could this be a spark plug issue? Do Diesels have sparks?

Diesels dont have spark plugs but glowplugs

Whereabouts are you located maybe someone local may have access to a code reader

How old is the car, what milege?

coopersim · 11-19-2012, 12:25 PM

I'm in North Notts - not far from Sheffield, it's an '08 car with 52,000 miles on it

mistryn · 11-19-2012, 12:41 PM

I would wait if anyone from around that area can help out.

It is best to get the codes read before replacing anything, it may be a glowplug or may not and be the MAF sensor

10-31-2012, 10:41 AM	#1
coopersim Captain 79 Rep 879 Posts Drives: 420d Join Date: Apr 2009 Location: Glos. iTrader: (2)	Firing on five, slight wobble and holding gears longer? This last few mornings I've noticed on first start the engine sounds and feels (shake) like it's firing on one less cylinder I've also noticed over the last few weeks a very slight surging especially when on cruise control, as if the engine is revving up and down in tiny amounts Plus, fourth to fifth gear doesn't change as freely, and the gearbox doesn't feel 'right' somehow I know this is a lot, but any ideas what could be causing these issues ??
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11-19-2012, 10:33 AM	#2
coopersim Captain 79 Rep 879 Posts Drives: 420d Join Date: Apr 2009 Location: Glos. iTrader: (2)	I'm still getting this, and notice it more when I'm on cruise, like a slight hunting, sensation, a friend said he thought it might be an air leak, any suggestions at all?
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11-19-2012, 10:53 AM	#3
coopersim Captain 79 Rep 879 Posts Drives: 420d Join Date: Apr 2009 Location: Glos. iTrader: (2)	Could this be a spark plug issue? Do Diesels have sparks?
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11-19-2012, 10:53 AM	#4
oldbilly Second Lieutenant 24 Rep 285 Posts Drives: 330d e91 M Sport Join Date: Apr 2012 Location: cambridgeshire iTrader: (2)	could be a numbers of things, alhough I'd be looking at injectors 1st, what's the service history?
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11-19-2012, 10:54 AM	#5
coopersim Captain 79 Rep 879 Posts Drives: 420d Join Date: Apr 2009 Location: Glos. iTrader: (2)	Full BMW service history, 3,300 miles to next service (oil change) Last service was rear brake pads. 52,000 miles currently on the clock
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11-19-2012, 11:20 AM	#6
phil200tdi Colonel 115 Rep 2,621 Posts Drives: 335i M Sport E90 LCI manual Join Date: Jan 2011 Location: Aylesbury iTrader: (1)	Any codes? Take it to a good independent. __________________ Car: e91 330d with Viezu map Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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11-19-2012, 11:26 AM	#7
coopersim Captain 79 Rep 879 Posts Drives: 420d Join Date: Apr 2009 Location: Glos. iTrader: (2)	No errors, is there nothing I can check?
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11-19-2012, 11:44 AM	#9
coopersim Captain 79 Rep 879 Posts Drives: 420d Join Date: Apr 2009 Location: Glos. iTrader: (2)	The Check Control option in the OBD
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11-19-2012, 12:25 PM	#11
coopersim Captain 79 Rep 879 Posts Drives: 420d Join Date: Apr 2009 Location: Glos. iTrader: (2)	I'm in North Notts - not far from Sheffield, it's an '08 car with 52,000 miles on it
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11-19-2012, 12:41 PM	#12
mistryn Colonel 154 Rep 2,045 Posts Drives: BMW 335D Join Date: Oct 2011 Location: Mids iTrader: (8)	I would wait if anyone from around that area can help out. It is best to get the codes read before replacing anything, it may be a glowplug or may not and be the MAF sensor
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