 » Site Navigation | | | | » Recent Threads | | | My 318ti build 05-21-2024 04:48 PM 05-21-2024 04:48 PM 0 Replies, 1,113 Views | |  |  |  |  12-07-2009, 01:27 PM | #1 | | Junior Member Join Date: Dec 2009 Location: usa Posts: 5 |  Cooling fan wiring help
Just got a 95 bmw 318ti with m42 engine, previous owner removed the AC compressor and im guessing it caused the Fan to stop kicking on.
The cooling fan is now hot wired to come on with the ignition switch.
Im wondering if someone could help guide me on how to rewire the fan the correct way and still have it kick on even tho the AC unit has been removed.
( assuming the cooling fan works with a relay on the ac)
thanks! |  |  | | 12-08-2009, 12:05 AM | #2 | | Junior Member Join Date: Dec 2009 Location: usa Posts: 5 |
no one ever encountered this before? | | | | | 12-13-2009, 05:03 AM | #3 | | Junior Member Join Date: Dec 2009 Location: usa Posts: 5 |
bump.. anyone atleast have a wiring diagram? On my other car ( toyota ) I removed the AC assembly for weight reduction and after that the fan would no longer kick on, I cant remember exactly what i did but it involved splicing two wires together and it allowed the circuit to be complete. It was a few years ago and i had the help of a forum so i cant remember off the top of my head. The car takes for ever to warm up with the fan constantly on  | | | | | 12-13-2009, 05:26 AM | #4 | | Senior Member Join Date: Jul 2007 Location: norcal - 94590 Posts: 3,186 |
Here is a link to wiring diagrams for the 95 model... http://wedophones.com/Manuals/BMW/19...g%20Manual.pdf Many members have installed a manual switch for the cooling fan, as it is rarely necessary and usually only when you use AC, which is eliminated on your car... Maybe just wire a switch into the circuit which you can trigger during heavy loads or very hot days... __________________ James 95 active w/leather interior and sport interior conversion, Vaders, full M-Tech exterior conversion. Now m50 swapped* Eibach sway bars, D2 Coilovers, Depo's w/AE's, blacked-out sides and grills, LeatherZ console and door armrests, 1 series starter button mod, and custom finished Style 5's <--- in this color! Named "Roddy":  *M50 6 cyl. swap with fan delete, S50 cams and chip, AFE stage 2 intake, M3 clutch and 11.5 lb Fidanza flywheel, 3.15LSD, battery relocated to rear and complete custom exhaust. Sweet!  97 318ti sport, Alaska Blue, Contours, coilovers, Dove Vaders and custom black/grey interior named "Max" 95 318ti Active in Cosmos, S50 swap in progress... named "Pit" SUPPORT 318ti.org! CLICK THE LINK ABOVE! Hosting a forum like this is not free. 318ti.org is one of the best BMW forums on the web because it is member supported, not vendor supported. The cost to become a Supporter is a nominal $10.00... A YEAR! DO IT! NOW! | | | | | 12-13-2009, 06:51 AM | #5 | | Junior Member Join Date: Dec 2009 Location: usa Posts: 5 |
Do these cars come with a engine driven fan also? If so then it appears the previous owner has deleted that also.
Im guessing not running the elec fan would be a bad idea since the engine driven fan is removed also.
Id like to find a way to rewire it so it kicks on after a certain temp. | | | | | 12-13-2009, 08:05 AM | #6 | | Senior Member Join Date: Jul 2007 Location: norcal - 94590 Posts: 3,186 |
No US spec ti came with a engine driven fan... The cooling system is very efficent if properly maintained, and the fans rarely come on... the PO of your car may have thought the coolant temp sensor was faulty, and so he wired the fan to run constantly... there may not have been anything wrong with the fan or sensor in the first place... __________________ James 95 active w/leather interior and sport interior conversion, Vaders, full M-Tech exterior conversion. Now m50 swapped* Eibach sway bars, D2 Coilovers, Depo's w/AE's, blacked-out sides and grills, LeatherZ console and door armrests, 1 series starter button mod, and custom finished Style 5's <--- in this color! Named "Roddy": *M50 6 cyl. swap with fan delete, S50 cams and chip, AFE stage 2 intake, M3 clutch and 11.5 lb Fidanza flywheel, 3.15LSD, battery relocated to rear and complete custom exhaust. Sweet! 97 318ti sport, Alaska Blue, Contours, coilovers, Dove Vaders and custom black/grey interior named "Max" 95 318ti Active in Cosmos, S50 swap in progress... named "Pit" SUPPORT 318ti.org! CLICK THE LINK ABOVE! Hosting a forum like this is not free. 318ti.org is one of the best BMW forums on the web because it is member supported, not vendor supported. The cost to become a Supporter is a nominal $10.00... A YEAR! DO IT! NOW! | | | | | 12-13-2009, 08:28 AM | #7 | | Junior Member Join Date: Dec 2009 Location: usa Posts: 5 |
Alright thanks.
Now just to figure out how to wire it back to factory, lol. | | | | |
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