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E90/E91/E92/E93 (2006 - 2013)
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  #1  
Old 11-24-2013, 10:05 AM
rumblin70ss rumblin70ss is offline
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2008 335xi......Slight Hesitation Upon Acceleration?

Hey there everyone,

First time BMW owner and I have a question. When I start to accelerate, the car seems to hesitate very slightly, almost like I need to give it more gas pedal than I'm used to. It does it hot or cold and it starts/idles/runs fine, never missing a beat. Is this just one of the quirks of this car? If it's an issue I'd like to get it worked out before the warranty runs out in a few months.

Any help is appreciated!

Tony
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  #2  
Old 11-24-2013, 10:16 AM
Nerdboss Nerdboss is offline
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Quote:
Originally Posted by rumblin70ss View Post
Hey there everyone,

First time BMW owner and I have a question. When I start to accelerate, the car seems to hesitate very slightly, almost like I need to give it more gas pedal than I'm used to. It does it hot or cold and it starts/idles/runs fine, never missing a beat. Is this just one of the quirks of this car? If it's an issue I'd like to get it worked out before the warranty runs out in a few months.

Any help is appreciated!

Tony
How many miles? May need to have the intake valves cleaned with a walnut shell blasting.
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  #3  
Old 11-24-2013, 11:26 AM
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floydarogers floydarogers is offline
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Location: Renton, WA
 
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It's almost certainly the fact that the car starts in 2nd gear (if you have an automatic) and it takes a bit of rpms to build up boost for the turbos. Try starting in sport mode/1st gear. You can/should also search here for similar experiences before posting - this is quite a common complaint.
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  #4  
Old 11-24-2013, 04:25 PM
rumblin70ss rumblin70ss is offline
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Location: Newark, DE
 
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Quote:
Originally Posted by Nerdboss View Post
How many miles? May need to have the intake valves cleaned with a walnut shell blasting.
Thanks for the reply.....car has about 89k on it. Never heard of blasting intake valves with walnut shells so that's a new one!

Quote:
Originally Posted by floydarogers View Post
It's almost certainly the fact that the car starts in 2nd gear (if you have an automatic) and it takes a bit of rpms to build up boost for the turbos. Try starting in sport mode/1st gear. You can/should also search here for similar experiences before posting - this is quite a common complaint.
That's exactly what it was....thanks for the advice and I apologize for not doing a search first. Sometimes I'm not sure yet where to start with this car

Tony
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  #5  
Old 11-25-2013, 02:03 AM
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Zooks527 Zooks527 is offline
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Quote:
Originally Posted by floydarogers View Post
It's almost certainly the fact that the car starts in 2nd gear (if you have an automatic) and it takes a bit of rpms to build up boost for the turbos. Try starting in sport mode/1st gear. You can/should also search here for similar experiences before posting - this is quite a common complaint.
335 automatic transmissions start in 1st gear from a stop. Many people think they start in 2nd because they count shifts to top gear without realizing that the transmission will skip gears along the way.

Easy to check. Start from a stop. Accelerate slowly, watching the speed and RPM at the time of the first shift. Then use manual mode to find the gear where that speed / RPM combination occurs.

Even easier, watch this video.




My car had the same symptoms as the OP. It needed the intake valve cleaning, and at 89K, so does the OP's car.
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2009 335i xDrive coupe, Jet Black, Black Leather, Grey Poplar, Steptronic, ZPP, ZSP, ZCW, iPod/USB, HD radio, Parking Assist. Rear Fogs, Hardwire V1, ProFit G3.
ED May 12, 2009, Munich dropoff May 16, Redelivery June 22, 2009




Prior 33 years of cars: 1967 BelAir wagon / 1968 LeMans Tempest / 1970 Mustang Mach 1 / 1972 El Dorado / 1978 Corvette (kept until first Bronco) / 1981 Subaru GL wagon AWD / 1983 s10 Blazer 4x4 (big mistake) / 1985 Bronco 4x4 / 1996 Bronco 4x4 / 2004 Passat 4motion
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  #6  
Old 11-25-2013, 03:52 AM
Miller335 Miller335 is offline
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Silly automatics.
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  #7  
Old 11-25-2013, 07:04 AM
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CALWATERBOY CALWATERBOY is offline
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Quote:
Originally Posted by rumblin70ss View Post
Thanks for the reply.....car has about 89k on it. Never heard of blasting intake valves with walnut shells so that's a new one!



That's exactly what it was....thanks for the advice and I apologize for not doing a search first. Sometimes I'm not sure yet where to start with this car

Gosh-a-mighty man! Immediately DO THIS

Due at 60k and not a warranty item, dealer charges ~$600.

Attended U/D - are you looking at early flurries this year?

.

Last edited by CALWATERBOY; 11-25-2013 at 08:03 AM.
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  #8  
Old 11-25-2013, 01:07 PM
rumblin70ss rumblin70ss is offline
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Location: Newark, DE
 
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Quote:
Originally Posted by Zooks527 View Post
335 automatic transmissions start in 1st gear from a stop. Many people think they start in 2nd because they count shifts to top gear without realizing that the transmission will skip gears along the way.

Easy to check. Start from a stop. Accelerate slowly, watching the speed and RPM at the time of the first shift. Then use manual mode to find the gear where that speed / RPM combination occurs.

Even easier, watch this video.




My car had the same symptoms as the OP. It needed the intake valve cleaning, and at 89K, so does the OP's car.
I did the manual/auto test a few times today. The car is as smooth as can be in the manual mode. I watched when I felt my hesitation and it appears right when it shifts. That walnut blasting might be something I do when I have some time and it warms up!

Quote:
Originally Posted by Miller335 View Post
Silly automatics.
Agreed......the wife had to give up a six speed Firehawk because of Baby

Quote:
Originally Posted by CALWATERBOY View Post
Gosh-a-mighty man! Immediately DO THIS

Due at 60k and not a warranty item, dealer charges ~$600.

Attended U/D - are you looking at early flurries this year?

.
The car is a CPO certified car......wouldn't this need to be done to maintain the warranty to 100k? When I talked to the dealer they said it was still covered.

It's cold as can be here and we had flurries the other day. Hopefully that's it for the year

Tony
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