Hesitant/Stuttering 335i - BMW 3-Series (E90 E92) Forum

norman1979 · 03-11-2013, 07:19 AM

Upon driving the 335i over the weekend, I noticed that it was hesitant when accelerating between around 2k-3k revs in all gears. Its an Auto - not sure if that makes any difference.
No engine management light on the On Board Computer.

Any ideas? Im thinking possibly MAF sensor

doughboy · 03-11-2013, 07:45 AM

N54's don't have a MAF, so you can be confident it's not that!

Have you not run it for a while? Different fuel? Maybe go for a blast and see if it clears up?

C.J · 03-11-2013, 07:57 AM

Plugs / injectors? Carbon build up?

phil200tdi · 03-11-2013, 07:58 AM

Sounds like a misfire but could also be Vanos solenoids.

Any codes?

NH335i · 03-11-2013, 08:07 AM

Mine does that somehwhat.
I just attributed to being in regular "econ" drive mode rather than sport or "m" mode.

norman1979 · 03-11-2013, 08:50 AM

Its only driven occasionally but it was last driven around a week ago. I took it for a blast yesterday hoping that it would clear up but it didn't.
Surely the plugs/injectors would show up the engine management light?

Weird thing is that its fine when revving in Manual Mode.

doughboy · 03-11-2013, 09:56 AM

Engine lights will only show when misfires are significant, so it has to be quite bad for that to happen.

There is a auto gearbox adaptation reset procedure that i've seen on here somewhere, maybe try that?

impys · 03-13-2013, 07:24 AM

Quote:

Originally Posted by norman1979

Upon driving the 335i over the weekend, I noticed that it was hesitant when accelerating between around 2k-3k revs in all gears. Its an Auto - not sure if that makes any difference.
No engine management light on the On Board Computer.

Any ideas? Im thinking possibly MAF sensor

Mine did this a few weeks ago so took to into BMW, they changed the High Pressure Fuel Pump...luckily under warranted

Before that they changed the injectors under a past recall that had not been done

norman1979 · 03-18-2013, 05:07 AM

I tried the gearbox reset adaption and it seemed like it fixed it at first but stuttering returned later but now it is more intermittent
I haven't had a chance to get it diagnosed it but I have also noticed that the heaters are working intermittently. The climate control panel works as normal but the heaters just stop and start working randomly.
Perhaps the stuttering and the heater issue could be linked?

Josh1a1h · 03-18-2013, 06:06 AM

Good luck getting this sorted mate.

03-11-2013, 07:19 AM	#1
norman1979 Private Drives: E92 335i, B7 RS4 Join Date: Apr 2011 Location: London Posts: 94 iTrader: (0)	Hesitant/Stuttering 335i Upon driving the 335i over the weekend, I noticed that it was hesitant when accelerating between around 2k-3k revs in all gears. Its an Auto - not sure if that makes any difference. No engine management light on the On Board Computer. Any ideas? Im thinking possibly MAF sensor Last edited by norman1979; 03-11-2013 at 07:30 AM.
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03-11-2013, 07:57 AM	#3
C.J Registered? Drives: E92 335i Join Date: Jan 2012 Location: UK Posts: 89 iTrader: (0)	Plugs / injectors? Carbon build up? __________________ FOR SALE: Genuine 19" 225 (MV4) Alloys

03-11-2013, 07:58 AM	#4
phil200tdi Lieutenant Colonel Drives: 335i M Sport E90 LCI manual Join Date: Jan 2011 Location: Aylesbury Posts: 1,774 iTrader: (0)	Sounds like a misfire but could also be Vanos solenoids. Any codes? __________________ 2008 E90 335i LCI M Sport / Manual / Black / Red Leather / Avon ZZ3 / VMR710 Mods: JB4 / BMS DCI /AR Design DPs / ETS FMIC / Water Meth Injection / Spec Stage 2+ Clutch / BMS Chargepipe / BMS OCC / Cool Carbon Brake Pads / Rob Beck PCV Valve / Forge Diverter Valves Wish List: LSD / Bastuck Quads / Birds Suspension / M3 Arms

03-18-2013, 06:06 AM	#10
Josh1a1h Major Drives: SB Pre-LCI 335i Join Date: Aug 2011 Location: North London Posts: 1,425 iTrader: (0)	Good luck getting this sorted mate. __________________ JB4, BMS DCI, VRSF DP, H&R/Koni Yellow Dampers. 1M Bumper & Carbon Splitter, LED Angel Eyes w/Full Blackout, M3 Skirts, CSL Boot & Carbon Diffuser,8.5/10.5 x 19" SSR Professor MS1 FOR LED ANGEL EYE RETRO-FITTING IN THE UK, GET IN TOUCH & VISIT THE LINK BELOW. https://www.facebook.com/LiteAngelsE92 .............. http://www.LiteAngels.co.uk

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03-11-2013, 07:45 AM	#2
doughboy Major General Drives: E91 335i LCI Manual Join Date: Jan 2009 Location: UK Posts: 5,775 iTrader: (2) Garage List 2009 335i Tourer E91N [5.00]	N54's don't have a MAF, so you can be confident it's not that! Have you not run it for a while? Different fuel? Maybe go for a blast and see if it clears up?

03-11-2013, 08:07 AM	#5
NH335i CELTICS Drives: 335i Join Date: Dec 2012 Location: NH Posts: 113 iTrader: (0)	Mine does that somehwhat. I just attributed to being in regular "econ" drive mode rather than sport or "m" mode.

03-11-2013, 08:50 AM	#6
norman1979 Private Drives: E92 335i, B7 RS4 Join Date: Apr 2011 Location: London Posts: 94 iTrader: (0)	Its only driven occasionally but it was last driven around a week ago. I took it for a blast yesterday hoping that it would clear up but it didn't. Surely the plugs/injectors would show up the engine management light? Weird thing is that its fine when revving in Manual Mode.

03-11-2013, 09:56 AM	#7
doughboy Major General Drives: E91 335i LCI Manual Join Date: Jan 2009 Location: UK Posts: 5,775 iTrader: (2) Garage List 2009 335i Tourer E91N [5.00]	Engine lights will only show when misfires are significant, so it has to be quite bad for that to happen. There is a auto gearbox adaptation reset procedure that i've seen on here somewhere, maybe try that?

03-18-2013, 05:07 AM	#9
norman1979 Private Drives: E92 335i, B7 RS4 Join Date: Apr 2011 Location: London Posts: 94 iTrader: (0)	I tried the gearbox reset adaption and it seemed like it fixed it at first but stuttering returned later but now it is more intermittent I haven't had a chance to get it diagnosed it but I have also noticed that the heaters are working intermittently. The climate control panel works as normal but the heaters just stop and start working randomly. Perhaps the stuttering and the heater issue could be linked?