Bought a used 435I, any way to tell if its been tuned?

trilltx · 06-07-2018, 10:03 AM

Is there any easy ways to tell if my used 435I already has a tune?

obert · 06-07-2018, 10:12 AM

Quote:

Originally Posted by trilltx

Is there any easy ways to tell if my used 435I already has a tune?

I believe a shop can look when the last time the ECU was played with and how many times.

mike@x-ph.com · 06-11-2018, 06:04 PM

Quote:

Originally Posted by trilltx

Is there any easy ways to tell if my used 435I already has a tune?

Not really no unless the tune is still installed on the car

yoon_209 · 06-11-2018, 06:39 PM

do you know who the previous owner was?

If it was a young male than you can probably assume it was. Do you know if there were any other mods on the car?

bimmer4lif3 · 06-11-2018, 07:20 PM

Look at all the connectors that a plug an play tune like the jb4 would be plugged into typically these connectors are almost never touched if they all look like someone was poking around you can assume something was done. I have seen this on a couple cars. Either the wiring harness cover has been undone or broken clips on the connectors these are usually telltale signs. Also what others have suggested.

06-07-2018, 10:03 AM	#1
trilltx Private 45 Rep 64 Posts Drives: Alpine F32 Join Date: Jun 2018 Location: Houston, TX iTrader: (0)	Bought a used 435I, any way to tell if its been tuned? Is there any easy ways to tell if my used 435I already has a tune?
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06-11-2018, 06:39 PM	#4
yoon_209 Masterchief 370 Rep 1,026 Posts Drives: 20' BMW M340i Join Date: Aug 2016 Location: Irvine, CA iTrader: (1)	do you know who the previous owner was? If it was a young male than you can probably assume it was. Do you know if there were any other mods on the car? __________________ AWE Non-Res Touring \| TE37 SL PW \| Ohlins RT
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06-11-2018, 07:20 PM	#5
bimmer4lif3 Private First Class 95 Rep 138 Posts Drives: M440 gran coupe, E46 M3 Join Date: Aug 2012 Location: NY iTrader: (2)	Look at all the connectors that a plug an play tune like the jb4 would be plugged into typically these connectors are almost never touched if they all look like someone was poking around you can assume something was done. I have seen this on a couple cars. Either the wiring harness cover has been undone or broken clips on the connectors these are usually telltale signs. Also what others have suggested.
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