Engine problems of E90 320i

TS320 · 06-27-2012, 04:27 PM

Hi I got my 2006 E90 320i Aut. 2 months ago at 54000km (33.500 miles)

1. Engine lamp came up for a few times at high revs, diagnose checked at service and valvetronic motor was not working smoothly, so it is replaced with its sensor etc.
2. Oil lamp add +1l sign came up during driving for a few times but it goes away after restarting the engine. Board computer sometimes doesn't show the oil level, the clock showing it execution of level test keeps on turning. The oil level changes btw 3/4 , 1/4 and add +1l sign. Not sure what to do but have 1litre of engine oil in luggage for an emergency.
3.After valvetronic replacement (100-150km) engine lamp came again with a low engine power feeling and return to service. According to diagnostic there was irregular working value on all cylinders, and timing of 4th coil was 17.01 while other 3 where -3.35, -5.82, -4.52 (s^-1) . So the 4th coil replaced.
After replacement of coil timing was -2,-3 etc at idling but came up to 0 for all 4 cylinders at higher revs.

4.During cold starting engine starts without a problem with normal rev. for 5-10 sec, then the rev. decreases, with fluctuation, the engine sound becomes weird like misfiring and engine stops.
In order to run the car in cold start I have to give trottle at start up btw 2000-4000 revs about 1 min and the misfiring sound goes, engine runs normally. When diagnosed, given a misfiring that is not current any more.
Engine has stopped when waiting at red light in D position for 2 times. My mechanics thinks engin should be opened and valve positions has to be reset, possibly changing some valves, push bars etc. with a very high cost.

Does any one know has an idea what could be the problem?

BOSSBMW · 06-27-2012, 08:01 PM

Very thorough description. Hopefully someone can help ya out!

bbstoke · 09-13-2012, 07:07 AM

At the moment mines in limp mode and diagnosis says valvetronic motor. Got home from garage and car won't start. Got to take it in next week, saying they want it for three days. How much did you pay for your motor and sensor? in GBP please if possible. Would be gutted after paying for that job and then it going in limp mode. I'm sure you should have a case of missed diagnosis. Worth a try. Good luck and post what happens

06-27-2012, 04:27 PM	#1
TS320 Registered 1 Rep 1 Posts Drives: 320i Join Date: Apr 2012 Location: Turkey iTrader: (0)	Engine problems of E90 320i Hi I got my 2006 E90 320i Aut. 2 months ago at 54000km (33.500 miles) 1. Engine lamp came up for a few times at high revs, diagnose checked at service and valvetronic motor was not working smoothly, so it is replaced with its sensor etc. 2. Oil lamp add +1l sign came up during driving for a few times but it goes away after restarting the engine. Board computer sometimes doesn't show the oil level, the clock showing it execution of level test keeps on turning. The oil level changes btw 3/4 , 1/4 and add +1l sign. Not sure what to do but have 1litre of engine oil in luggage for an emergency. 3.After valvetronic replacement (100-150km) engine lamp came again with a low engine power feeling and return to service. According to diagnostic there was irregular working value on all cylinders, and timing of 4th coil was 17.01 while other 3 where -3.35, -5.82, -4.52 (s^-1) . So the 4th coil replaced. After replacement of coil timing was -2,-3 etc at idling but came up to 0 for all 4 cylinders at higher revs. 4.During cold starting engine starts without a problem with normal rev. for 5-10 sec, then the rev. decreases, with fluctuation, the engine sound becomes weird like misfiring and engine stops. In order to run the car in cold start I have to give trottle at start up btw 2000-4000 revs about 1 min and the misfiring sound goes, engine runs normally. When diagnosed, given a misfiring that is not current any more. Engine has stopped when waiting at red light in D position for 2 times. My mechanics thinks engin should be opened and valve positions has to be reset, possibly changing some valves, push bars etc. with a very high cost. Does any one know has an idea what could be the problem?
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06-27-2012, 08:01 PM	#2
BOSSBMW Captain 89 Rep 741 Posts Drives: 2013 X3 35i Join Date: Mar 2009 Location: Upstate NY iTrader: (0)	Very thorough description. Hopefully someone can help ya out! __________________ ['13 X3 SGM] [20" XXR550's in Black Chrome] [Lamin-X Tails/Fogs] [M-Sport Rear] [FOX Exhaust][H&R Sport Springs][RaceChip Ultimate][BMS N55 Intake] SOLD-['06 325i TiAg] [19" VMR VB3 HYPERBLACK] [Blacklines] [OEM Xenon Conversion] [35% Tint] [M-Tech Rear] [M-Tech Front] [Black Vinyl Roof] [Slotted/Drilled Rotors, Cool Carbon Pads] [PBX]
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09-13-2012, 07:07 AM	#3
bbstoke Private First Class 2 Rep 154 Posts Drives: 2006 e90 Join Date: Jun 2011 Location: Stoke-On-Trent iTrader: (0) Garage List 2006 318i SE [10.00]	At the moment mines in limp mode and diagnosis says valvetronic motor. Got home from garage and car won't start. Got to take it in next week, saying they want it for three days. How much did you pay for your motor and sensor? in GBP please if possible. Would be gutted after paying for that job and then it going in limp mode. I'm sure you should have a case of missed diagnosis. Worth a try. Good luck and post what happens
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