 » Site Navigation | | | | » Recent Threads | 1999 M3 Swap 09-07-2023 10:10 PM 05-02-2024 08:18 PM 6 Replies, 377,316 Views | |  |  |  | |  08-31-2010, 02:35 AM | #16 | | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 |
Quote: Originally Posted by MyTi82  unfortunately i dont. Where is the best place to get a Bently Manual?
i have a 97 318ti. | PM you shortly on Bentley manual PDF. I will try to post a diagram of relay location and circle the fan relay. |  |  | | 08-31-2010, 02:43 AM | #17 | | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 |
Can you swap relay number #15 & #13? these are your high speed and low speed fan relays. If you swap them you should get low fan when the A/C is on. If this works then relay #15 was bad which is now in position #13.
Hopefully the top of your fuse box has a diagram to show you what relays are in what position. If not I will post a diagram. Let me Know?
John S | | | | | 08-31-2010, 02:44 AM | #18 | | Senior Member Join Date: May 2009 Location: Baltimore, MD Posts: 130 |
Quote: Originally Posted by xxxJohnBoyxxx PM you shortly on Bentley manual PDF. I will try to post a diagram of relay location and circle the fan relay. | thanks a mill! | | | | | 08-31-2010, 03:01 AM | #19 | | Senior Member Join Date: May 2009 Location: Baltimore, MD Posts: 130 |
this is what my fuse box looks like.
unfortunately it does not say which relay is which. | | | | | 08-31-2010, 09:33 PM | #20 | | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 |
Hope this helps. I marked the relays for you.
Edit. I did a close up and row two your green 30 amp fuse looks blown. Is it? Maybe it's just the picture but it looks blown to me. Double check all green fuses and ensure they are good or the fan will not work and relays are a waste of time. then move to swap relays and check the fan with A/C. If fan does not work switch back relays. If it does work then you know which relay is bad
Last edited by xxxJohnBoyxxx; 08-31-2010 at 09:44 PM. | | | | | 08-31-2010, 11:31 PM | #21 | | Senior Member Join Date: May 2009 Location: Baltimore, MD Posts: 130 |
Quote: Originally Posted by xxxJohnBoyxxx Hope this helps. I marked the relays for you.
Edit. I did a close up and row two your green 30 amp fuse looks blown. Is it? Maybe it's just the picture but it looks blown to me. Double check all green fuses and ensure they are good or the fan will not work and relays are a waste of time. then move to swap relays and check the fan with A/C. If fan does not work switch back relays. If it does work then you know which relay is bad | i just got home. i have been anxious to get home n try what u suggest. i am about to go out now and do so. i will let u know in a sec. | | | | | 08-31-2010, 11:45 PM | #22 | | Senior Member Join Date: May 2009 Location: Baltimore, MD Posts: 130 |
eureka!
thanks man......your test worked. i swapped them, cut on the AC and the fan came on. so from my understanding the #15 (purple) and this is the high speed relay was bad and needs to be replaced?
Last edited by MyTi82; 09-01-2010 at 12:01 AM. | | | | | 09-01-2010, 12:03 AM | #23 | | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 |
Quote: Originally Posted by MyTi82 eureka!
thanks man......your test worked. i swapped them, cut on the AC and the fan came on. so from my understanding the #15 was bad and needs to be replaced? | Yes please replace relay number 15 take it to a auto parts store and have them cross ref it. After you get it make sure you swap back the relays so you have the right amp relays in their position. Right now leave the relays the way they are and your cooling should work unless your coolant level needs bleeding or your radiator switch is bad. That is the next thing to check when your ready. If your are ready lets begin. Let me know? John S | | | | | 09-01-2010, 12:08 AM | #24 | | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 |
Also your confused on relays but I don't want to explain unless you want to call me. Home 727 321-0460. Call me if you want and I will explain what has happened and how it was the low relay that was bad. | | | | | 09-01-2010, 09:03 PM | #25 | | Member Join Date: May 2010 Location: CA Posts: 95 |
Nice work John! way to troubleshoot~ | | | | | 09-01-2010, 09:35 PM | #26 | | Senior Member Join Date: Mar 2010 Location: Tulsa, OK Posts: 252 |
+1 for John, good job  __________________ 1996 318ti base: m44, 5 spd, lsd - 18x8 bremmer kraft wheels w/sumitumo tires 225/40R18 & bmw locking lug studs, 10mm spacers in rear, halo headlights, cold air intake, koni str.t struts and shocks w/mounts, h&r sport springs, serp belts, control arm & tie rod kits, front sway bar links, JVC kd-x50bt headunit w/ipod hook up in the glove box, alpine sps-500(front and rear), jl audio 10" powerwedge max, jl audio 250.1 amp, motor mounts, fuel filter, passenger side window motor, drivers lower window run, muffler hanger kit, various interior bulbs, left door striker/ajar switch, lower hood latches, changed from gray vinal to black leather shift and parking brake boots, m3 weighted shift knob, ngk-r spark plugs, magnecor spark plug wires(blue),new cabin micro-filters,new headliner & a-pillar mouldings, 5w20 synth-blend oil and filter, BG Ultra Guard syn. rear end fluid & ls additive, BG Syncro Shift II syn. manual trans fluids, stainless steel braided brake lines and dot 4 fluid, extra brake light mod, new p/s reservoir and rubber hoses
need to do - fix door panels, paint job, MORE MONEY!!  | | | | | 09-08-2010, 08:23 PM | #27 | | Senior Member Join Date: May 2009 Location: Baltimore, MD Posts: 130 |
Quote: Originally Posted by familytruckster If the fuse was blown there is a problem somewhere else.
The relay could be bad, wiring could be smoked. Did the fuse blow again? | so i think the fuse and possibly the relay blew again......any ideas what could be causing this? | | | | | 09-09-2010, 04:53 AM | #28 | | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 |
Ok you put the relays back in there original position and installed the new relay. Right?
Then it blew the 30amp (green) fuse?
The relay should not be damaged since the fuse blows to protect the relay.
If the fuse blew replace it since it looked like it was bad in the picture when I enlarged it. If it blows again then we have a short and need to hunt that down.
Report back.
John S | | | | | 09-09-2010, 06:11 PM | #29 | | Senior Member Join Date: May 2009 Location: Baltimore, MD Posts: 130 |
yep, i put them back right.
i know you keep mentioning the 30amp fuse but i look in the box and all of them look good. also, for my car the fuse for the fan is under the steering wheel and its a big 40amp fuse.
i checked and it is fine.....doenst look blown. is it possible that they other relay, #13, is bad n needs to be replaced? also i noticed that when i try to use the AC the CEL comes on. i dont know what code its throwing since i dont have a reader but its just something i have noticed.
and currently the fan doesnt come on when the AC is turned on. i def think my AC system needs to be serviced especially since its tripping CEL codes. since its starting to get cool out i dont think i will need it so right now i just wanna make sure my car doesnt overheat in traffic and hot weather. | | | | | 09-09-2010, 09:11 PM | #30 | | Senior Member Join Date: Dec 2007 Location: Gulfport, Florida Posts: 3,208 |
What happens if you swap relays? DOes the fan work again? | | | | | |
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