MHD N54 Question

SleetonFire · 05-06-2018, 09:48 PM

So I recently purchased a 135i that already had a MHD tune on it, and I'm wondering if I re-flash to another map will I have to do the whole (30 minute) initial re-flash again or will it be a quick re-flash(5 min)? Wondering because I don't own a beefy battery charger and hoping to avoid having to pick one up. The car currently has a Stage 2 flash, and was maybe going to upgrade to a Stage 2+ map if it wouldn't require a battery charger to do. (First post, bear with me guys, also new to the 1 scene!)

1and1 · 05-07-2018, 07:59 AM

Welcome to 1Addicts!

Only the initial install flash is long. Map changes are really quick, ~2ish minutes.

Generically, you may wanna turn off lights/radio/ac fan, but otherwise no worries unless your battery is totally blown out.

05-06-2018, 09:48 PM	#1
SleetonFire Registered 0 Rep 3 Posts Drives: 08 135i Join Date: May 2018 Location: East Coast iTrader: (0)	MHD N54 Question So I recently purchased a 135i that already had a MHD tune on it, and I'm wondering if I re-flash to another map will I have to do the whole (30 minute) initial re-flash again or will it be a quick re-flash(5 min)? Wondering because I don't own a beefy battery charger and hoping to avoid having to pick one up. The car currently has a Stage 2 flash, and was maybe going to upgrade to a Stage 2+ map if it wouldn't require a battery charger to do. (First post, bear with me guys, also new to the 1 scene!)
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05-07-2018, 07:59 AM	#2
1and1 Loves me some MHD! 1857 Rep 1,718 Posts Drives: faster than he should... Join Date: Jul 2016 Location: Tally, FL iTrader: (2) Garage List '09 135i [10.00]	Welcome to 1Addicts! Only the initial install flash is long. Map changes are really quick, ~2ish minutes. Generically, you may wanna turn off lights/radio/ac fan, but otherwise no worries unless your battery is totally blown out. __________________ 1and1 135i - E82.N54 2009 BSM - MHD / xHP / DCI, PR CP & 7.5" Race IC / N55 mid & Borla . . WL RSFI, Koni, Eibach & Dinan CP's, M3 CA's / EBC Red's & Firehawk 500's X1 - E84.N20 2013 MGM - JB4 - The Wife's, now with new turbo & ewg
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