Not joined yet? Register for free and enjoy features such as alerts, private messaging and viewing latest posts and topics.

Auto box swap ?

2003 - 2009, roadster, coupe, facelift
Post Reply
Nash3vans
Member
Member
Posts: 421
Joined: Thu Dec 01, 2016 11:08 pm
Location: Black country

Auto box swap ?

Post by Nash3vans » Sat Sep 23, 2017 7:04 pm

First off, is the e86 auto box on a 2.5 a 6 speed? Does anyone know if it would be a straight swap for a 5speed e85 box? Is there an ecu that controls it all and would that need changing also? Any info would be grateful as this may be my winter project.
2005 merlot 2.5 auto.313s.e46 m3 front brakes.Strut brace,poly bush’s front, m front bumper,modified grilles,bc racing coilovers,facelift lights all round,modified rear bumper,s/wheel retrimmed, Merc slk seats. scorpion exhaust, many interior mods.

User avatar
Smartbear
Lifer
Lifer
Posts: 13685
Joined: Wed Feb 05, 2014 6:54 pm
Location: a barn in Somerset

Auto box swap ?

Post by Smartbear » Sat Sep 23, 2017 7:26 pm

Nash3vans wrote: Sat Sep 23, 2017 7:04 pm First off, is the e86 auto box on a 2.5 a 6 speed? Does anyone know if it would be a straight swap for a 5speed e85 box? Is there an ecu that controls it all and would that need changing also? Any info would be grateful as this may be my winter project.
Hi, think there's a mistake somewhere as bmw never produced a 2.5 e86?
Rob
Image

e89 Sdrive 20i, plenty of mumbo & good economy-the thinking bears z4
e89 Sdrive 30i, this ones busted, pass me another...
e85 3.0si sold

RyanB88
Member
Member
Posts: 436
Joined: Sun Apr 09, 2017 6:51 pm

Auto box swap ?

Post by RyanB88 » Sat Sep 23, 2017 7:32 pm

I assume he means th e85. My question is why would you want to go from 6 speed to 5? I can understand the other way but not that way?
Z4 now sold :(

Current - M235i :thumbsup:

User avatar
Wondermike
Moderator
Moderator
Posts: 10469
Joined: Fri Jun 15, 2007 10:16 pm

Auto box swap ?

Post by Wondermike » Sat Sep 23, 2017 8:00 pm

Think he means changing from a pre-facelift 5 speed to a facelift 6 speed.

Nash3vans
Member
Member
Posts: 421
Joined: Thu Dec 01, 2016 11:08 pm
Location: Black country

Auto box swap ?

Post by Nash3vans » Sat Sep 23, 2017 9:47 pm

Yeh sorry guys, I want to put a facelift gearbox (6speed) into my pre facelift e85 (5speed) Thought the facelifts were called e86? My bad.
2005 merlot 2.5 auto.313s.e46 m3 front brakes.Strut brace,poly bush’s front, m front bumper,modified grilles,bc racing coilovers,facelift lights all round,modified rear bumper,s/wheel retrimmed, Merc slk seats. scorpion exhaust, many interior mods.

User avatar
MACK
Lifer
Lifer
Posts: 3600
Joined: Mon Jun 15, 2015 11:38 am
Location: Manchester

Auto box swap ?

Post by MACK » Sun Sep 24, 2017 8:50 am

It's much more involved than simply switching the box. Electronics, torque converter, rear diff are all different between the cars and you would need to check the bolt pattern of the boxes are the same etc.

All in all its far easier and cheaper to sell and buy a post facelift car.
Silver 05 3.0i SE
Mods inc - F/L Xenons Clear Ind Rear Lights M Sport Seats & Wheel Eibach/B4 3.64 DIFF (SOLD)

White E89 20i M Sport
Mods inc- B12 kit, M3 Arms, 18" Zito 935's with PS4's, Decat & Remap, Switchable Exhaust Flap (SOLD)

Post Reply