E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > DIY: Do It Yourself

DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

Thread Tools Search this Thread Rating: Thread Rating: 75 votes, 4.77 average. Display Modes
Prev Previous Post   Next Post Next
Old 06-09-2011, 11:20 AM   #1
Zero. Leaks.
Solidjake's Avatar
Join Date: May 2008
Location: NYC
Posts: 31,006
My Ride: '02 330i 6MT
DIY: Aux/mechanical fan to electric fan swap


- Floor jack and one jack stand
- Philips screwdriver
- Torx 25 bit
- 8" extension
- 3/8ths ratchet
- 8mm socket or 8mm wrench
- 9mm socket
- 13mm socket
- Fan clutch tools
- OEM electric fan: 17117561757
- Expanding rivet: 17111712963 (for the expansion tank side to hold fan to frame)
- Torx screw: 17117536972 (for passenger side to hold fan to frame)
- Expanding rivets: 51718229003 (4)
- 51118174185 (as many as your break)
- 51471919209 (as many as your break)


- Jack up one side of car (I did the drivers side) and put one jack on the metal plate
- Remove the 8mm bolts holding bumper to the fender liners
- Take out the reinforcement bolts with 9mm socket/ratchet/extension
- Slide bumper out (unclip wiring for fogs and horn)
- Take out the top air intake
- The center duct is held by four pop in screws
- Aux fan is held by four 13mm nuts, take them out
- Disconnect the aux fan by the fan shroud in the engine bay
- Slide the fan out
- Put the center duct back in and top air intake
- Put the front bumper back on in reverse order (slide in, put in the two reinforcement bar bolts and the assorted bolts to the liners.
- Next you have to take the mechanical fan out
- Pop out the fan control unit on the shroud and the other wiring and put them to the side
- Take out the 1 torx screw on the passenger side top and loosen up the fan shroud
- Use the fan clutch tool to loosen the bolt and take out the assembly
- Take your electric fan and slide it against the radiator and screw in the torx screw
- Plug the electric fan to the connector where the aux fan was plugged into
- Place back the control unit and the other wiring to the electric fan shroud

Viola, you're done.

It is good to also replace preventatively your lower radiator hose sensor and 50A fuse which control the electric fan.

Lower hose sensor: 13621433077


- MUCH easier removal of fan to do engine work
- Remove mechanical clutch fan where the clutch may sieze and blow the fan into pieces
- Preventing cooling system/body damage upon failed fan clutch
- Remove parasitic drag from engine
- Clean up front of car by removing auxiliary fan
- Weight reduction
- Sound reduction
- Improved acceleration (due to removed parasitic drag)

Fan purchase sources: (Updated 10/27/16)

Behr Electric Fan
$187.48 at PartsGeek: http://www.partsgeek.com/catalog/200..._assembly.html
$201.36 at AutoPartsWay: http://www.autopartsway.com/search.c...ch:17117561757
$208.99 at BluntTech: https://www.blunttech.com/products/411073
$212.82 at BimmerParts: http://www.bimmerparts.com/searchite...or=17117561757
$229.95 at Turner Motorsport: http://www.turnermotorsport.com/p-20...nsmission.aspx
$254.95 at ECS Tuning: http://www.ecstuning.com/Search/Site...757/ES2568885/
$255.99 at FCP Euro: https://www.fcpeuro.com/products/bmw...57-17117561758
$274.99 at eEuroparts: http://www.eeuroparts.com/Parts/6619...17117561757OE/

CoolXpert Electric Fan
$173.98 at RM European: http://www.rmeuropean.com/Part-Numbe..._98550DA0.aspx
$192.00 at Pelican Parts: http://www.pelicanparts.com/cgi-bin/...I1.x=11&I1.y=5
$185.88 at Guten Parts: http://www.gutenparts.com/catalogsea...ku=17117561757
$185.72 at AutohausAZ: http://www.autohausaz.com/pn/17117561757
$239.99 at FCP Euro: https://www.fcpeuro.com/products/bmw...rt-17117561757

Genuine BMW Fan

$472.99 (449.99 minus potential discount codes) at FCP Euro: https://www.fcpeuro.com/products/bmw...-17117561757oe
$467.93 at ECS Tuning: https://www.ecstuning.com/BMW-E46-33..._3.0L/ES38183/

Last edited by Solidjake; 10-27-2016 at 10:30 AM.
Solidjake is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.

aux, auxiliary, behr, bosch, bumper, clutch, damage, electric, engine, explode, fan, hood, manual, mechanical, mount, mounts, removal, swap

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON

All times are GMT -5. The time now is 07:14 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - 2016 performanceIX Inc - privacy policy - terms of use