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7 Series - E38 (1995 - 2001)

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  #1  
Old 04-25-2011, 05:39 PM
Aria Aria is offline
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98 740i - Quick question regarding the wiper relays

Are the one or two in a '98 740i? I thought one, so ordered one. But when under the hood yesterday, and after pulling out everything ("everything"), I didn't see a taller relay. At least I don't recall seeing a tall one. The relay arrived today (though I tried location it yesterday to see if maybe it was loose or something to try to pull a miracle and get the wipers to work for Easter since it started sprinkling), so now I know what it looks like.

There were a couple light green ones, a pink one, and a tan one, which I did pull out, but it was short, and the prongs were absolutely not the same. Is the relay sometimes shorter? Should I just be patient and wait for my husband to get home with the car to go dig around under the hood?
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  #2  
Old 04-25-2011, 06:03 PM
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M.Wong M.Wong is offline
E38 E91 (R56 E30 E39)
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Is it brown and look like #11: http://www.realoem.com/bmw/showparts...61&fg=25&hl=18

Look here: Wiper relay replacement post by Magnum
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E38 2000 740iL Orient Blue
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Last edited by M.Wong; 04-25-2011 at 06:04 PM.
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  #3  
Old 04-25-2011, 06:14 PM
Aria Aria is offline
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All right, I double-checked. That magnum page is what I went by. There is no relay like that in that section of my car. There's a short, mint green one with five prongs, two identical short purple ones each with five prongs, and a light salmon on with four prongs that says ABS on top. The brown one I ordered using the part number on the Magnum site is, well, tall, brown*, and has seven prongs. Also the diagrams on them are different. *The package for the relay says brown/green relay. Now I've read reference to a "new, improved" relay. Were the original relays short, and this one perhaps a new, taller style?
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  #4  
Old 04-25-2011, 06:23 PM
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M.Wong M.Wong is offline
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They may have changed after 1998? My 2000 came stock with the taller tan one... sorry, I don't know more about it.
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E38 2000 740iL Orient Blue
E91 2012 328xiT Alpine White

Passed on to new families:
E30 1987 325i Royal Blue
E39 2003 540i/6 Sterling Gray
R56 2010 Mini Cooper S British Racing Green


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  #5  
Old 04-25-2011, 06:25 PM
Aria Aria is offline
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The green is the one that was there. All four of them in there are the same size as the green. The brown one WILL fit in the slot the green one was, as least the prongs line up. I don't know if al the stuff on top will fit nicely over it though.





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  #6  
Old 04-25-2011, 06:26 PM
Aria Aria is offline
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M, do you recall if the location of the tan/brown one in yours is where the minty green one is in mine? If so, I'm going to go pop it in and see what happens.
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  #7  
Old 04-25-2011, 06:34 PM
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joyism5 joyism5 is offline
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All Data has listed 3 (three) relays for the wiper system. All of them have 9 pins black connectors. All of them in the Ebox. Check my post http://www.bimmerfest.com/forums/sho...d.php?t=520902
what exactly is your MFR date?
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  #8  
Old 04-25-2011, 06:55 PM
Aria Aria is offline
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Joyism, I tried swapping the new relay for the one you pointed to and my car started smoking instead of starting. I put the one that was there back in, and the car starts fine. So that's not it.
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  #9  
Old 04-25-2011, 06:57 PM
Aria Aria is offline
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The car's MFR date was 9/97. My personal MFR date...almost 17 years earlier.
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  #10  
Old 04-25-2011, 07:14 PM
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joyism5 joyism5 is offline
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Quote:
Originally Posted by Aria View Post
Joyism, I tried swapping the new relay for the one you pointed to and my car started smoking instead of starting. I put the one that was there back in, and the car starts fine. So that's not it.
Holly s...! Hope nothing got messed up.
I post the thread to show you about where to look . In there it was mention for the 01 model I think.

Anyway , Looks like you have 2 of them under the modules. read the text too.check this screen freeze and tell me if they apply to you. Save pic., I will delete them later due to copyright.

Last edited by joyism5; 04-26-2011 at 09:39 AM.
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  #11  
Old 04-25-2011, 07:17 PM
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joyism5 joyism5 is offline
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When you found them take a pic. if you can, so we can better help somebody in the future.
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  #12  
Old 04-25-2011, 07:35 PM
Aria Aria is offline
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I'm on the road to PepBoys really quick (well, I'm the passenger, I don't text while driving), and I'll save the pics when I get home. If I can find the damned relay, I'll definitely take and post a pic.
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  #13  
Old 04-25-2011, 07:57 PM
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joyism5 joyism5 is offline
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2nd relay I forgot to post. Here are the diagram connectors. To better pin poin them you could use a fused wire to apply a positive to the connectors that excite the wiper motor.

Sorry If I cause confusion with the other picture for the 01 model. Looks like there are 2 relays up to 98 and after that they have 3 relays.

Last edited by joyism5; 04-26-2011 at 09:40 AM.
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  #14  
Old 04-25-2011, 10:25 PM
Aria Aria is offline
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Got the pics saved. Those two are part number 61 36 1 388 911 on my car, the purple (called "violet" on the parts sites) relays. They're in the same spot as the one here: http://www.magnum1.com/BMW-740/740_P...ction-740.html , but it's easier to take everything out to reach them. I've got small hands with long fingers, and absolutely couldn't get my hand down enough to get either of them out without removing them all.

Now based on doing more research on those two relays, the two violet ones in my picture above, BMW used the two-relay system until the middle of 1998. So the later '98 models will have the 61 36 8 384 505 single relay, like the '99 on the magnum1 site. About the 3 relays, I don't know, and am not going to research much on other cars until my knowledge on the car I have if firm enough that I won't go off and confuse myself.

Thanks, Joy. I'll get those relays ordered (and the 61 36 8 384 505 returned), and post an update in a couple weeks. Shipping cross country both ways.... At least it's the not-rainy season now in sunny So.Cal.
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  #15  
Old 04-26-2011, 06:11 AM
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M.Wong M.Wong is offline
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Quote:
Originally Posted by Aria View Post
M, do you recall if the location of the tan/brown one in yours is where the minty green one is in mine? If so, I'm going to go pop it in and see what happens.
Sounds like you have this figured out... Sorry, I've been off line all night. Even if I were here, I wouldn't recall because it's been so long since I've had that relay box open - I thought mine and Magnum's looked the same.
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E38 2000 740iL Orient Blue
E91 2012 328xiT Alpine White

Passed on to new families:
E30 1987 325i Royal Blue
E39 2003 540i/6 Sterling Gray
R56 2010 Mini Cooper S British Racing Green


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  #16  
Old 03-11-2012, 06:54 PM
arampers arampers is offline
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Aria, did you ever got your wipers to work ? I am having the same problem in my 740i. i checked the relays, fuses, and the wiper motor and they are all okay..
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  #17  
Old 03-18-2012, 09:39 AM
Koolkidd89 Koolkidd89 is offline
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okay so I'm having the same issue with my ('97 740IL) wipers not working. I found that if you take the cover off of the "E-box" (as its called in the service manual) its located under the hood, toward the passenger side, closest to the car itself; you can see your DME, your cruise CTRL, your ECU in the top right of the box. to get to the wiper relays, you can do one of the following:

1) open your truck, KEEP IT OPEN, remove the negativ (brown, ground) wire from yur battery, wait 30 mins and then unplug the three connectors that i mentioned. they will be long connectors (except for the Cruise CTRL which was small and blue for my car) you pull up the metal piece on top of the connector and the plug comes out. afterwards you can simply pull the devices out to get to the relays.

2). leave everything still plugged in and CAREFULLY AND SLOWLY, BUT WIT A LITTLE force pull those same devices out with everything plugged in. be Very cautious of smaller wires around the DME or ECU boxes. if you successfully pull out the three devices and simply sit them to the side (CONNECTED) you be able to visually see your relays.

From what i can tell, from '95-mid '98 they used Purple/Violet relays. If you stand on the passenger side, with yur head under the hood looking toward the driverside. you'll see a brown relay (ABS), and "above" that youll see two purple ones. the highest purple relay is Wiper relay #1 (Main power or relay number 1 in the service manual) the second purple relay is wiper relay #2 (wiper speed and intervals or relay number 4 in the service manual).

Check for rain water, moisture, any liquid at the bottom of the relay holder. that is one of out common issues with E38's (all years). if you find none then continue troubleshooting the relay number one (if you hear no noise wen yu try to turn on yur wipers) and relay number 2 (if you hear a faint "clunk". okay thats all i have for now, btw- my wipers still arent fixed. but im on my way to church. so i'll be looking for the email notification on replies to my post.
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  #18  
Old 07-17-2012, 11:13 PM
Koolkidd89 Koolkidd89 is offline
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BTWay, I'm super late on my reply post to this thread, but I gave in and brought my baby to the [ST]ealer and they "Assured" me that the issue was with my windshield wiper motor and that the job would cost an upward amount of $400. We all KNOW that the job can be done cheaper. So here's my dilemma and I need feedback if possible....I've found an alternative (cheaper) part to the OEM wiper motor which really does cost $300....do any of you feel that the alternative part is worth it to save the money? I live in Connecticut and it rains quite often and unexpectedly in between being super Hott<notice the two "t's"> in the summer and extremely cold in the winter. It is totally reckless and unsafe to drive my vehicle without windshield wipers especially with hurricane season inching closer....So what do you guys think? I know I'm kinda off topic, but see my situation is simply at the next level of troubleshooting from you guys. My relays are completely fine with no water build-up....Please give me your thoughts. Any info would be appreciated and help other users in my situation.

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  #19  
Old 07-18-2012, 07:00 AM
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joyism5 joyism5 is offline
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If they said wiper motor, that should be. I would check anyway the continuity at the wiper motor connector, and try to jump it straight from the battery. If is really dead I would purchase one OEM motor for $211 from http://www.rmeuropean.com/search.aspx?keyword=
and do the job myself. A DIY for E39 is here, it might be aplicable for the E38 as well http://www.bmwland.co.uk/forums/viewtopic.php?p=843078.
Good Luck!
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Old 07-18-2012, 08:00 PM
Koolkidd89 Koolkidd89 is offline
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Kool, thX again Joy, I'll definitely check the link for a better price than what I originally found. Either way I was planning on doing this job on my own. You save bundles if you jus put alil effort in and take care of your car yourself....replacing my valley pan gasket is something wayyyyy outta my league.

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