e90 320i car jerking forward during low gear change/acceleration

badgesnob · 02-20-2015, 01:00 AM

I have been having a bad hesitation issue with my BMW 320i E90. When i press the throttle to accelerate out of a roundabout (rotary), the car stutters and hesitates to move for 2 seconds.

Its as if the gearbox can't select a lower gear, gears or clutch slipping.

It is dangerous because sometimes the car doesn't respond in the crucial moments. It only does this from speeds of 10 - 30km/h. Very responsive at higher speeds.

I have replaced VVT motor, Eccentric shaft sensor, sparks. Gearbox/diff fluid, head cover gasket, oil filter housing seals, , reset adaptive transmission. I've scanned for fault with INPA and cannot find anything.

Has anyone had this issue and found a solution?
Thank you

328i_E92_2007 · 02-20-2015, 01:15 AM

Could be a possible misfire due to ignition coils.

BavarianMWfan · 02-20-2015, 11:03 AM

If there are no codes, the coils should be fine.

Try Techron and cleaning the Vanos solenoids. Then go for a long spirited drive.

If that doesn't help then try spark plugs.

How many kilometers?

krahooligan · 02-20-2015, 11:21 AM

Quote:

Originally Posted by badgesnob

I have been having a bad hesitation issue with my BMW 320i E90. When i press the throttle to accelerate out of a roundabout (rotary), the car stutters and hesitates to move for 2 seconds.

Its as if the gearbox can't select a lower gear, gears or clutch slipping.

It is dangerous because sometimes the car doesn't respond in the crucial moments. It only does this from speeds of 10 - 30km/h. Very responsive at higher speeds.

I have replaced VVT motor, Eccentric shaft sensor, sparks. Gearbox/diff fluid, head cover gasket, oil filter housing seals, , reset adaptive transmission. I've scanned for fault with INPA and cannot find anything.

Has anyone had this issue and found a solution?
Thank you

I drive a e90 328i. it hesitates when not in sport mode. I think it may be the way our cars are made to be driven. that is why do not drive in just "D" always in DS. there is no throttle lag then.

SmallWave · 02-20-2015, 12:16 PM

I drive 09' E90 LCI 320i (N43 engine), 6MT.
Had same hesitation issue in low RPM for years.
Had once a coil problem; later (2013) BMW replaced all coils under warranty.
Hesitation was somewhat still there. Clutch shuddering in 1st gear, when engine warm up.
In 2014, had 2 sensors raising fault codes and replaced;
this time, I asked for DME software update.
Since then, the clutch shuddering and engine hesitation issues are gone,
and car is running smooth and has adequate low RPM power as it should.

02-20-2015, 01:00 AM	#1
badgesnob Private 12 Rep 51 Posts Drives: F25 X3 xDrive 20i Join Date: Jan 2013 Location: Sydney iTrader: (0) Garage List 2014 BMW X3 [0.00]	e90 320i car jerking forward during low gear change/acceleration I have been having a bad hesitation issue with my BMW 320i E90. When i press the throttle to accelerate out of a roundabout (rotary), the car stutters and hesitates to move for 2 seconds. Its as if the gearbox can't select a lower gear, gears or clutch slipping. It is dangerous because sometimes the car doesn't respond in the crucial moments. It only does this from speeds of 10 - 30km/h. Very responsive at higher speeds. I have replaced VVT motor, Eccentric shaft sensor, sparks. Gearbox/diff fluid, head cover gasket, oil filter housing seals, , reset adaptive transmission. I've scanned for fault with INPA and cannot find anything. Has anyone had this issue and found a solution? Thank you
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02-20-2015, 01:15 AM	#2
328i_E92_2007 Private First Class 15 Rep 152 Posts Drives: 2007 328i Coupe Join Date: Jun 2014 Location: Los Angeles iTrader: (0) Garage List 2007 BMW 328i [9.00]	Could be a possible misfire due to ignition coils.
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02-20-2015, 11:03 AM	#3
BavarianMWfan Private First Class 12 Rep 170 Posts Drives: - Join Date: Nov 2014 Location: GTA iTrader: (0)	If there are no codes, the coils should be fine. Try Techron and cleaning the Vanos solenoids. Then go for a long spirited drive. If that doesn't help then try spark plugs. How many kilometers?
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02-20-2015, 12:16 PM	#5
SmallWave New Member 0 Rep 17 Posts Drives: 09' E90 LCI Join Date: Dec 2009 Location: Europe/FR iTrader: (0)	I drive 09' E90 LCI 320i (N43 engine), 6MT. Had same hesitation issue in low RPM for years. Had once a coil problem; later (2013) BMW replaced all coils under warranty. Hesitation was somewhat still there. Clutch shuddering in 1st gear, when engine warm up. In 2014, had 2 sensors raising fault codes and replaced; this time, I asked for DME software update. Since then, the clutch shuddering and engine hesitation issues are gone, and car is running smooth and has adequate low RPM power as it should.
	Appreciate 0 Quote