Leaky Rear Wash-Wipe [Archive] - Z3MCoupe.com Forums

Trundler

07-06-2006, 06:06 PM

I know that this has been asked before, but as the older topics have gone ...

I spotted that during spirited acceleration washer fluid leaked from the rear washer nozzle.
I have spoken to BMW this a.m. and they have not got a clue about a fix for this...
But .. I think that a couple of people on the Welsh Weekender mentioned part numbers for a non-return valve and a work instruction sheet so that a dealer (or enthusiast!) could fix this issue.
(I think it may have been THE ANIMAL and j1muv that I spoke to one this)

Could someone fill in the blanks!

Cheers :)

David1975

07-06-2006, 06:10 PM

Hi,

I dont own a Coupe yet but have been to see a few. I have been told that you can fit an additional valve that will cure the leakage but thats all i know.

I'll keep and eye on this post as when i find the right one i think i will have to do the same mod. Black cars show water stains like a white shirt and spagetti sauce.

Good luck

Dave

PhilT

07-06-2006, 06:19 PM

It's a common fault but none of the dealers ever know about the fix. If I recall correctly they need to fit a non-return valve.

There is a BMW Technical Service Bulletin that refers to this, giving part numbers etc. but I haven't kept a copy and my original post on here has been lost in cyberspace with all the historic stuff.

Hope this helps

gsi

07-06-2006, 06:30 PM

I was sent a copy of the work instructions a while back. I think the part costs just a few quid (non return valve), it's getting the trim off to get at it which is a pain!

Will see if I can find it, but I think it was Col? who supplied it..

Forever_Driving

07-06-2006, 07:31 PM

I got mine done last month under warranty.

The part no that was quoted on here was no good to them though as it didn tfit.

They came up with their own fix and its been fine.

exdos

07-06-2006, 08:47 PM

This is a problem which BMW acknowlkedges and will do FOC if a customer asks for it! Why don't they do this on a blanket basis if BMW knows it's a design fault :?: :?: :?:

Forever_Driving

07-06-2006, 09:15 PM

Both dealers Ive spoken to deny any knowledge of it.

They both say its not on any car recalls or noted problems.

I gave up with the first dealer and had to take a technician out to show him.
1 minute later he was like - 'oh yeah, that's no good, we'll have to fix that'

I tihkn if you include the grief you have to suffer to get a dealer to fix anything, the warranty is a con.

BEN

07-06-2006, 09:24 PM

Forever_Driving

07-06-2006, 10:21 PM

Alright, alright don't get smart.

I can't really be doing with driving to Bury just to get the car looked at, can I?

BEN

07-06-2006, 10:26 PM

Alright, alright don't get smart.

I can't really be doing with driving to Bury just to get the car looked at, can I?

go to colchester then!

you might see a PY one there, ill be getting my monies worth out of that warranty!

Forever_Driving

07-06-2006, 11:00 PM

And then I'll be laughing at your grief with them matey....

Oh how the tables will turn :D :D :D :D

ZiggyCol

08-06-2006, 09:51 AM

Here you go:

Service Information December 2000
General Electrical Systems 61 15 00 Service Engineering

SUBJECT
Washer Fluid Bleeds out of Rear Washer Nozzle

MODEL
Z3 coupe

SITUATION
Some Z3 coupe owners may complain of the washer fluid leaking out of the rear window arm and running onto the paintwork. Another possible complaint is that it takes too long to get washer fluid pumped up to the nozzle when using the rear window washer.

CAUSE
There is a low pressure area created in the rear of the car as it is driven, which can draw the washer fluid out of the rear washer supply line.

CORRECTION
IN CASE OF CUSTOMER COMPLAINT, a check valve, part number 61 68 8 391 402, can be installed in the supply line of the motor to hold the fluid in the line.

WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.

PhilT

08-06-2006, 10:13 AM

Nice one Col, I knew someone would have kept the info. :D

Forever_Driving

08-06-2006, 07:35 PM

Just so you know - thats the post I printed and gave to the dealer, and thats the part they ordered.

they still maintain it's wrong and they had to do a manual fix.

ZiggyCol

09-06-2006, 10:01 AM

Well thats what I gave to my dealer and it was fixed under extended warranty.

PhilT

09-06-2006, 10:20 AM

yep, me as well.

They knew absolutely nothing about the fault until I emailed them with that though.

guido

19-06-2010, 01:30 PM

Just picked up the above mentioned valve from a local BMW dealer and have fitted it - seems to have cured the fault, great. :D However....

whilst I had the tailgate trim off I decided to inspect the wiper motor, which had been working on and off...it's at the end of its life due to corrosion.

Exactly the same fault occurred on the Golf I used to have; why on earth some manufactures decide to post the nozzle through the motor is an error :banghead: the slightest bit of leaking and then subsequently a corroded motor mechanism!

Does anyone know of anywhere that will be able to refurbish the motor or is it better to get a new one altogether?

- I'm not keen to go down the Ebay route for a secondhand item.

Cheers

guido

19-06-2010, 02:20 PM

Only available via dealers for £184.01 - any other options?

ian

19-06-2010, 03:31 PM

Mine wiper motor cost £116.60 (inc VAT) from a main dealer in Sep 2008 - seem to have gone up a lot?!

dave p

19-06-2010, 04:46 PM

Only available via dealers for £184.01 - any other options?
dont forget you get 10% off for being a BMW Car Club member (they dont check from my experience!) or you could try BMMINIPARTS.COM who supply new bmw parts normally cheaper than dealers.

dave p

19-06-2010, 04:48 PM

must get that valve fitted to mine :thumbsup:

guido

19-06-2010, 08:15 PM

Thanks for that Dave :thumbsup:

I decided to disassemble the motor mechanism, mainly out of curiosity to see how bad the problem was.

http://i743.photobucket.com/albums/xx71/guidobertarelli/19062010383.jpg

I found that due to corrosion on the assembly arm, the plastic cog had been put under strain, resulting in worn/missing teeth - bit odd that the plastic used is so soft but I suppose it's better that going than the motor.

Arm:
http://i743.photobucket.com/albums/xx71/guidobertarelli/19062010381.jpg

Cog:
http://i743.photobucket.com/albums/xx71/guidobertarelli/19062010382.jpg

I really don't think it's worth going down the route of fabricating a new one out of something stronger but guess the other parts may come in handy for spares, seeing as the motor itself works fine.

Anyway, it's very possible this will be of no interest/use to anyone but has satisfied my tinkering for today! :lol:

Looking at the part code for the unit - it is the same as the E36 rear motor.

guido

19-06-2010, 08:26 PM

Mine wiper motor cost £116.60 (inc VAT) from a main dealer in Sep 2008 - seem to have gone up a lot?!

Price given using:

http://www.cooper-bmw-parts.co.uk/

dave p

19-06-2010, 09:02 PM

Might be worth getting a cheap used one rather than spending a fortune from a dealer?

http://cgi.ebay.co.uk/BMW-E36-3-Series-Compact-Hatch-Back-Rear-Wiper-Motor-/320549827765?cmd=ViewItem&pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item4aa24234b5

guido

20-06-2010, 09:45 AM

Exactly my thoughts...even if it is going against what I had previously said!
:yesnod:

ian

20-06-2010, 02:16 PM

They all seam to go the same way. Not sure a secondhand one is likely to be much better.

At least with a new one you get 24 months warranty.

guido

20-06-2010, 02:29 PM

Ian - yes the warranty would be a good point but I'm sure that they tend to go after the 24 month period is up.
Just managed to get a second hand unit from Ebay for £20, saving quite a bit and have the parts for it inevitably failing again in the future.

ian

21-06-2010, 07:55 PM

guido - fair enough, and well done.

Ian

guido

25-06-2010, 02:16 PM

Ebay item received this morning. There are slight aesthetic differences to the one from the Coupe but it fit's perfectly.
Used the best parts from each item and now have a fully functioning, non leaking rear wiper, success.
:hurray:

dave p

25-06-2010, 05:05 PM

guido

25-06-2010, 05:29 PM

result! do you think the e36 item would bolt straight on?

Hi Dave,

Yes, the E36 washer assembly bolts straight on. The rear casing (the second silver casing down on the left, shown in my 1st picture) is in 2 parts on the E36 one that I received. One is the mechanism cover and the second plate has the 3 attaching bolt holes rather than being one part as the Coupe one that I removed. I think the way the E36 is put together makes for a more water-tight seal.

Fat Tony

15-01-2011, 05:10 PM

Where does the check valve need to be installed? I'll have to get one ordered having noticed that the rear wash nozzles are leaking when the car's parked in the drive (steep angle)

dave p

15-01-2011, 09:16 PM

Where does the check valve need to be installed? I'll have to get one ordered having noticed that the rear wash nozzles are leaking when the car's parked in the drive (steep angle)
I need to do this to my coupe - will do a write up, its just a oneway valve that fits in the water supply pipe to the nozzle.
no diagram for the M coupe on realoem but this one for a E39, part number 10

http://www.realoem.com/bmw/diagrams/c/i/229.png

oo 1005

15-01-2011, 10:27 PM

Yeah its fairly obvious where it goes once you get the boot trim off, the arrow on the valve is in the direction of flow.

Having installed mine though it doesn't always spray anymore - almost like the valve is too restrictive... Sometimes it works sometimes it doesn't, I'm concerned it may start leaking into the boot lid, apparently quite a few on the US forums have experienced this and ended up just drilling through the valve.

Fat Tony

16-01-2011, 06:47 AM

Hmmm... Maybe I'll just start reversing up the drive to stop it weeping in that case ;)

Look forward to seeing the 'how to' Dave :thumbsup:

dave p

16-01-2011, 06:19 PM

ordered valve from bmminiparts (£1.33) with some other items so will have a go at fitting next weekend - hopefully!

'Yadi

16-01-2011, 07:48 PM

Just replaced the rear wiper motor on mine yesterday. The pita bit is getting the trim off tbh. Haven't done the leaky valve because mine doesnt seem need it. No sign of leakage inside the tailgate either thankfully. but did find this link on my research

http://www.bimmerfest.com/forums/showthread.php?t=144475

Contains a jpg of the BMW tech bulletin for adding the valve on the mc

dave p

19-09-2011, 06:34 PM

http://www.unofficialbmw.com/images/611500rearwasherleak.jpg

dave p

19-09-2011, 06:42 PM

details on how to remove trim on TIS,

http://tis.spaghetticoder.org/s/view.pl?1/04/18/27

Fat Tony

19-09-2011, 07:17 PM

Thanks Dave :thumbsup:

dave p

19-09-2011, 07:24 PM

just ordered two new rear boot struts so will have a go at fitting these and the valve this week - maybe

indy

19-09-2011, 07:49 PM

just ordered two new rear boot struts so will have a go at fitting these and the valve this week - maybe

wear a hard hat :cornut:

kwoffa

19-09-2011, 08:23 PM

Dave...its one of those silly jobs,dosnt take much time but its great when its done! ive replaced the small wiper blade replaced the spray part too! now ime gonna replace the whole lot....by the end of the week!not on subject at all,but also just pulled up gear gator etc..and there is a spare lamp just sitting there,,,guess its for my fag lighter! that will be fixed by the end of the week too!!!!once i have sourced the tiny capsule bulbs that costs £50 lol That Indy bloke "fuckit and chuckit" has got too much money for my liking! lol...