Coding for PE??

cmcdonald · 06-16-2014, 12:50 PM

Ok this may sound like an incredibly silly question but with how many small things that are coded for on our cars, is there supposed to be any coding done when installing the BMW performance exhaust? So this is why I ask. After installing the exhaust it sounded great but at certain RPMs the exhaust would drone a bit. Unfortunately these seemed to be cruising RPM on the highway both in drive or sport with the auto shifter. I recently took my car in for scheduled service and the dealer did notice the exhaust. When I got the car back that evening the drone pretty much went away. I noticed my RPMs seem not to hang in the drone range anymore. The dealer didn't mention doing anything, but do you think there is coding done for the PE on an auto car to prevent drone?

Dackelone · 06-16-2014, 01:01 PM

There is no coding for a PE. Maybe the dealer fixed a poor PE install ? Maybe it was touching something on the undercarriage. ??? Also... the PE will change it's sound(the sound gets deeper) after a few thousand miles - once the inside gets all carbon'd up.

TheSt|G · 06-16-2014, 01:40 PM

Some drone is normal for the PE.

There certainly isn't any coding for it.

631twentyeighteye · 06-16-2014, 04:09 PM

auto tranny? probably updated the flash to a newer one that has earlier shift points or something.

cmcdonald · 06-16-2014, 08:46 PM

Quote:

Originally Posted by 631twentyeighteye

auto tranny? probably updated the flash to a newer one that has earlier shift points or something.

Yep auto tranny. That's kinda what it felt like they did. They also replaced the air filters though. So maybe that's the difference in sound.

Overpar56 · 06-16-2014, 11:32 PM

The PE drones around 2000 to 2300. It's not too bad.

TheSt|G · 06-17-2014, 06:23 AM

Quote:

Originally Posted by cmcdonald

Yep auto tranny. That's kinda what it felt like they did. They also replaced the air filters though. So maybe that's the difference in sound.

Very unlikely. The stock airbox is seriously muffled.

cmcdonald · 06-17-2014, 10:14 AM

Hmm interesting. Thanks guys! I kinda thought coding was a bit far fetched but hey when a battery is coded who knows lol. I'll have to ask the dealer what they didnext time I go in there . Supposedly it was just a brake fluid flush and air filters. There was definitely a sound difference when I picked it up though. I'm pretty sure it wasn't mileage as I bought the PE used with 20k already on it. I also doubt the dealer tweaked the install as mine is welded on not installed with the clamp, so very little tweaking is possible. Thanks again for the help.

TheSt|G · 06-17-2014, 10:44 AM

Quote:

Originally Posted by cmcdonald

Hmm interesting. Thanks guys! I kinda thought coding was a bit far fetched but hey when a battery is coded who knows lol. I'll have to ask the dealer what they didnext time I go in there . Supposedly it was just a brake fluid flush and air filters. There was definitely a sound difference when I picked it up though. I'm pretty sure it wasn't mileage as I bought the PE used with 20k already on it. I also doubt the dealer tweaked the install as mine is welded on not installed with the clamp, so very little tweaking is possible. Thanks again for the help.

They often do a software update while the car is in. Which is especially wonderful when they wipe all of your coding.

MarkkyyMan · 06-17-2014, 02:05 PM

General rule of thumb: USUALLY if it has a sensor coding will be required.

06-16-2014, 12:50 PM	#1
cmcdonald Second Lieutenant 8 Rep 216 Posts Drives: 2012 BMW 128i Join Date: Dec 2013 Location: Chicago, IL iTrader: (0)	Coding for PE?? Ok this may sound like an incredibly silly question but with how many small things that are coded for on our cars, is there supposed to be any coding done when installing the BMW performance exhaust? So this is why I ask. After installing the exhaust it sounded great but at certain RPMs the exhaust would drone a bit. Unfortunately these seemed to be cruising RPM on the highway both in drive or sport with the auto shifter. I recently took my car in for scheduled service and the dealer did notice the exhaust. When I got the car back that evening the drone pretty much went away. I noticed my RPMs seem not to hang in the drone range anymore. The dealer didn't mention doing anything, but do you think there is coding done for the PE on an auto car to prevent drone? __________________ 2012 BMW 128i: BMW Performance Rear Spoiler, BMW Performance Front Grilles, 20% Tint, BMW 135i M-Sport Axle-back With Shadowline Tips, Golf-Tee Mod, 261 M-Sport Rims with Falken 235/40R18 265/35R18 Tires,Depo Smoked LED Side Makers, Eiback Pro Springs (To be installed)
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06-16-2014, 01:01 PM	#2
Dackelone European Editor 10539 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	There is no coding for a PE. Maybe the dealer fixed a poor PE install ? Maybe it was touching something on the undercarriage. ??? Also... the PE will change it's sound(the sound gets deeper) after a few thousand miles - once the inside gets all carbon'd up. __________________ Dackel's European Delivery Museum Guide
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06-16-2014, 01:40 PM	#3
TheSt\|G Resident Tamed Racing Driver 298 Rep 4,697 Posts Drives: 911, 130is, E39 M5, E36 M3 Join Date: Mar 2008 Location: Outside Philly iTrader: (2)	Some drone is normal for the PE. There certainly isn't any coding for it. __________________ 2005 E46 M3 Interlagos/Cinnamon with Sunroof Delete
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06-16-2014, 04:09 PM	#4
631twentyeighteye Colonel 198 Rep 2,239 Posts Drives: 08 335i Join Date: Aug 2012 Location: Long island iTrader: (7)	auto tranny? probably updated the flash to a newer one that has earlier shift points or something. __________________ 08 e93 335i MT
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06-16-2014, 11:32 PM	#6
Overpar56 Proud AARP member in good standing 28 Rep 635 Posts Drives: Me nuts Join Date: Oct 2013 Location: Skyline, Chile iTrader: (0)	The PE drones around 2000 to 2300. It's not too bad. __________________ 2012 135i DCT, Lemans Blue/black leather, PPK1, PE, Stoptech Sport rotors and Sport pads, unhealthy crackles and burbles and an aging demonic driver.
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06-17-2014, 10:14 AM	#8
cmcdonald Second Lieutenant 8 Rep 216 Posts Drives: 2012 BMW 128i Join Date: Dec 2013 Location: Chicago, IL iTrader: (0)	Hmm interesting. Thanks guys! I kinda thought coding was a bit far fetched but hey when a battery is coded who knows lol. I'll have to ask the dealer what they didnext time I go in there . Supposedly it was just a brake fluid flush and air filters. There was definitely a sound difference when I picked it up though. I'm pretty sure it wasn't mileage as I bought the PE used with 20k already on it. I also doubt the dealer tweaked the install as mine is welded on not installed with the clamp, so very little tweaking is possible. Thanks again for the help.
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06-17-2014, 02:05 PM	#10
MarkkyyMan Captain 38 Rep 701 Posts Drives: 2010 BMW 128i Join Date: Dec 2009 Location: Indiana, U.S. iTrader: (0)	General rule of thumb: USUALLY if it has a sensor coding will be required.
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