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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Evidence of Dealership Tune Witch Hunt?



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      06-16-2010, 05:35 PM   #1
WilliamE92
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Evidence of Dealership Tune Witch Hunt?

Has anyone noticed that after they take their car in for an oil change/HPFP change that the techs fiddle with the wiring loom and ECU compartment?

I leave under my hood dusty on purpose just so I can see what they messed with by the fingerprints, and it appears that they checked my ECU compartment after my last HPFP visit. Does HPFP replacement require opening up the compartment or were they just checking for a tune?

Not a big deal, didn't have any tuner codes (I haven't even been tuned). Just a curious question if anyone else has noticed this as well.

I'm almost curious if they put one of those tags/orange paint under there. Maybe I'll check later tonight.

: paranoia:
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      06-16-2010, 05:56 PM   #2
BobS
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I know they have to do a software update sometimes..I don't think they would need to access the ECU by getting into it like that though....
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      06-16-2010, 06:18 PM   #3
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Quote:
Originally Posted by WilliamE92 View Post
Has anyone noticed that after they take their car in for an oil change/HPFP change that the techs fiddle with the wiring loom and ECU compartment?

I leave under my hood dusty on purpose just so I can see what they messed with by the fingerprints, and it appears that they checked my ECU compartment after my last HPFP visit. Does HPFP replacement require opening up the compartment or were they just checking for a tune?

Not a big deal, didn't have any tuner codes (I haven't even been tuned). Just a curious question if anyone else has noticed this as well.

I'm almost curious if they put one of those tags/orange paint under there. Maybe I'll check later tonight.

: paranoia:
They have to pull the cowl to replace the HPFP.
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      06-16-2010, 09:54 PM   #4
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I suspect my white ECU cover has been removed twice during dealer visits because I would notice faint grease staining on it.......I wipe it clean every time I reinstall my tune so I know it goes in clean.

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