E46 2800 RPM Stutter Club

Unless you're driving a 325, the N52 still had a DISA. 2 of them in fact.

Originally Posted by TerraPhantm

Unless you're driving a 325, the N52 still had a DISA. 2 of them in fact.

128i. DISA wiring harness is present and clipped to the side of the manifold, but no valves.

just found this thread.. I have a 2004 330CI with same shutter... replaced ccv, all boots and hoses, did the vanos seals, spark plugs.. issue persists.

I do have PASoft 1.4, could i use that to update the DME ??

what's the procedure if i can?



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PASoft won't do it. Read this thread: http://forum.e46fanatics.com/showthread.php?t=898241

ok... Luke like a dealer thing to me... hopefully they know what update im asking for.

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Ask for the BMW SI B 12 40 06 Engine Electrical Systems upgrade.

perfect. thank you!

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Not trying to open a can of worms, but does everyone who is experiencing this issue have the beisan seals in their vanos? I don't remember if there are any threads about the longevity of their system. Has anyone opened up a vanos after 40-60k to check out how they hold up?

Just reviewing some old threads I made.

http://forum.e46fanatics.com/showthr...637&highlight=

Check out post 7 and the date

i had this issue before i did the vanos seals... i noticed it the day i tested the car when purchasing it. only happens when i give it and its hitting the 3K range.. after that its smooth.
Originally i thought it was a vacuum leak or something else simple.. but after everything i did, update seems to be the only reason.

ill book an appointment and see what happens.

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Originally Posted by pawelgawel

i had this issue before i did the vanos seals... i noticed it the day i tested the car when purchasing it. only happens when i give it and its hitting the 3K range.. after that its smooth.
Originally i thought it was a vacuum leak or something else simple.. but after everything i did, update seems to be the only reason.

ill book an appointment and see what happens.

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If you head in to the dealer, see if they can tell you the DME version maybe?

Originally Posted by wolfe

128i. DISA wiring harness is present and clipped to the side of the manifold, but no valves.

I forgot about the x28s

Nonetheless, the DISA version of that motor makes 30 more hp and 20 lb-ft more torque, and retains a fairly linear curve

Any new ideas?

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Originally Posted by willsbma

Any new ideas?

Did you get your DME flashed yet?

Originally Posted by PainBreak

Did you get your DME flashed yet?

I'm convinced that the stutter will be solved by the DME flash.

The problem is, it's low on my list of priorities. Today I replaced the driver side front axel in my daughter's 03 Passat, along with the battery, which couldn't hold a charge with the ignition on during part of the process. Our 05 Kia needs a new ac compressor. The weather is warming up, and soon it will be fishing season again. I still have a few fluid changes to perform, on all of the family cars. The stutter is a nuisance, but in the overall scheme of things, a small matter.

I'll get to it, but it will be a few weeks, or months.

Just noticed this stutter for the first time yesterday. '04 330i ZHP. As far as I know, the car has original DISA. Will be taking the car into dealer for other warranty work soon. Will update if addressed/fixed, etc.

i made an appointment for next Monday.. the want the car for a full day :what:
Ill get a car in the mean time... probably a Hyundai. yay

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Originally Posted by wildirish317

I'm convinced that the stutter will be solved by the DME flash.

The problem is, it's low on my list of priorities. Today I replaced the driver side front axel in my daughter's 03 Passat, along with the battery, which couldn't hold a charge with the ignition on during part of the process. Our 05 Kia needs a new ac compressor. The weather is warming up, and soon it will be fishing season again. I still have a few fluid changes to perform, on all of the family cars. The stutter is a nuisance, but in the overall scheme of things, a small matter.

I'll get to it, but it will be a few weeks, or months.

Originally Posted by pawelgawel

i made an appointment for next Monday.. the want the car for a full day :what:
Ill get a car in the mean time... probably a Hyundai. yay

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Any reason you guys are unwilling to do the flash yourselves? If setting up the software is the issue, get the kit from bmtechnic -- they made it pretty foolproof. With WinKFP, you can do the update in your garage in less than an hour.

i do have a question... after heading some comments, the possible reason for the stutter might be because the sw wasn't able to handle a used up o2 sensors as well as it should. I have new o2 sitting around just in case and im wondering if that would solve the issue as well.

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Originally Posted by pawelgawel

i do have a question... after heading some comments, the possible reason for the stutter might be because the sw wasn't able to handle a used up o2 sensors as well as it should. I have new o2 sitting around just in case and im wondering if that would solve the issue as well.

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Perhaps. But the issue will comeback. It's better to get the proper software so that you can get the full life out of your o2s

Edit: I see you're in London -- as far as I know, the software issue only affects Ms45.1 e46s, which are exclusive to the US. So you might actually need O2s or some other item.