please help SHAKING ON COLD STARTUP

snapwasp · 03-02-2012, 04:56 AM

HI
please help me

i have 2007 320 BMW ( e90 ) 55K MILE
when i start the car morning it shakes hard from side to side for 10-15 sec.
then calm and drive ok .
the more it cold the harder it shakes
before three days it starts to turn off after i start it and then ok
it also seems to be weak and poor acceleration

i took it to workshop and he clean the injectors , check the sparks and he told me that the oil quality is very poor and it all jammed , he open the motor head and found many jammed oil

could poor quality of oil cause this ?
he think that the oil haven't been changed for a long time
only added if level decrease

i don't know what to do
i bought the car since 10 days
i almost drive it three times
it is still in workshop

what it could be?
the shaking
the weakness
the oil jammed

Three_thirty_I · 03-03-2012, 08:36 AM

Might be a good idea to have the car's diagnostics read to see if any errors come up.

But, I think safest is to have the oil and filters changed with the correct grade and quality and see if this helps. These engines need good quality oil for best results, and also based on your climate, so best is to consult your nearest service agent for the recommended spec of oil.

Hope this helps!

snapwasp · 03-03-2012, 11:38 AM

no error , still shaking on cold start up

Chriztofor · 03-04-2012, 10:04 AM

Dirty injectors? Chevron techron...search

queensfield · 03-04-2012, 07:41 PM

Clean up the vanos solenoids, which are probably all jammed due to dirty oil- there is a do-it-yourself on it (DIY section), but if they are jammed, it would show a code. If the valve cover gasket is leaking, oil may have reached up to spark plugs and ignition coils, which need to be changed after the valve cover gasket. Get the BMW-specific codes read to figure out what needs changing/cleaning.

03-02-2012, 04:56 AM	#1
snapwasp Registered 0 Rep 2 Posts Drives: e90 2007 Join Date: Feb 2012 Location: amman iTrader: (0)	please help SHAKING ON COLD STARTUP HI please help me i have 2007 320 BMW ( e90 ) 55K MILE when i start the car morning it shakes hard from side to side for 10-15 sec. then calm and drive ok . the more it cold the harder it shakes before three days it starts to turn off after i start it and then ok it also seems to be weak and poor acceleration i took it to workshop and he clean the injectors , check the sparks and he told me that the oil quality is very poor and it all jammed , he open the motor head and found many jammed oil could poor quality of oil cause this ? he think that the oil haven't been changed for a long time only added if level decrease i don't know what to do i bought the car since 10 days i almost drive it three times it is still in workshop what it could be? the shaking the weakness the oil jammed
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03-03-2012, 08:36 AM	#2
Three_thirty_I Colonel 604 Rep 2,072 Posts Drives: 2010 BMW E90 330i M Sport Join Date: Aug 2010 Location: Cape Town, South Africa iTrader: (0) Garage List 2010 BMW E90 330i M ... [9.63]	Might be a good idea to have the car's diagnostics read to see if any errors come up. But, I think safest is to have the oil and filters changed with the correct grade and quality and see if this helps. These engines need good quality oil for best results, and also based on your climate, so best is to consult your nearest service agent for the recommended spec of oil. Hope this helps! __________________ 2010 BMW E90 330i M Sport (M) Ex: BMW E90 330i (M) '05 (His) \| (Hers) BMW E46 320i f/l (M) '03
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03-03-2012, 11:38 AM	#3
snapwasp Registered 0 Rep 2 Posts Drives: e90 2007 Join Date: Feb 2012 Location: amman iTrader: (0)	no error , still shaking on cold start up
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03-04-2012, 10:04 AM	#4
Chriztofor Colonel 110 Rep 2,783 Posts Drives: '06 325i and '13 X5 Join Date: Feb 2010 Location: Chicago Burbs iTrader: (1)	Dirty injectors? Chevron techron...search __________________ If no codes are being thrown use Chevron Techron fuel injector cleaner (concentrate). It solves rpm fluctuating upon cold start-up. Also, for most BMW problems start off by scanning your car with the Peake Research Tool. It contains the actual BMW codes. If you want to register a newly installed battery for free (just buy a $10 cable) and google/download BMWLogger
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03-04-2012, 07:41 PM	#5
queensfield First Lieutenant 25 Rep 364 Posts Drives: 2006 330i E90 Join Date: Aug 2011 Location: So Cal iTrader: (0)	Clean up the vanos solenoids, which are probably all jammed due to dirty oil- there is a do-it-yourself on it (DIY section), but if they are jammed, it would show a code. If the valve cover gasket is leaking, oil may have reached up to spark plugs and ignition coils, which need to be changed after the valve cover gasket. Get the BMW-specific codes read to figure out what needs changing/cleaning.
	Appreciate 0 Quote