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Old 19-04-2017, 02:09 PM
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Dave P Dave P is offline
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Default Help needed!

If anyone can look at their own coupe (RHD S50) and check to see what part number is on the small hose that goes from the black additional water pump to the water valve assembly just to see if by chance its different to the one on mine (build 11/98)

hose below - ignore arrow - ending 656 - located at back left of expansion tank
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Old 19-04-2017, 04:40 PM
kwoffa kwoffa is offline
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just looked..not 100% sure...64212223656.?
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Old 19-04-2017, 04:52 PM
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Originally Posted by kwoffa View Post
just looked..not 100% sure...64212223656.?
Thanks Mel, its the same as mine (64212228656) this is the part number that doesn't exist according to BMW I appreciate you looking
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Old 19-04-2017, 05:07 PM
kwoffa kwoffa is offline
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just checked again..engine is hot! 64212228656 ?
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Old 19-04-2017, 05:54 PM
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Originally Posted by kwoffa View Post
just checked again..engine is hot! 64212228656 ?
yes same as mine, anyone with a late S50 able to have a look?
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Old 19-04-2017, 06:06 PM
jess robson jess robson is offline
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just took a look and can not see any numbers i am going to clean engine bay over weekend so will clean pipes and take another look
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Old 19-04-2017, 06:30 PM
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just took a look and can not see any numbers i am going to clean engine bay over weekend so will clean pipes and take another look
Thanks Jess
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Old 19-04-2017, 07:46 PM
Dakar Dakar is offline
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It appears to be missing from the Coupe catalogue.
However, it seems to be listed on the Roadster catalogue.

I'm thinking it's Part No. 13, just under a new number:
http://bmwfans.info/parts-catalog/Z3...?s=64212494833
Current retail is £15.08 plus VAT.

IF it's correct, the catalogue page reference (for future) is 64_0750

Best regards,
James

Last edited by Dakar; 19-04-2017 at 07:48 PM. Reason: page reference no.
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Old 19-04-2017, 08:26 PM
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Quote:
Originally Posted by Dakar View Post
It appears to be missing from the Coupe catalogue.
However, it seems to be listed on the Roadster catalogue.

I'm thinking it's Part No. 13, just under a new number:
http://bmwfans.info/parts-catalog/Z3...?s=64212494833
Current retail is £15.08 plus VAT.

IF it's correct, the catalogue page reference (for future) is 64_0750

Best regards,
James
Thanks James unfortunately the 64212494833 is listed for both LHD and RHD cars but is only for LHD ( I ordered one and its the wrong shape)

and the fact that according to BMW the Coupe doesn't even have an aux water pump really doesn't help matters
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Old 19-04-2017, 10:22 PM
Dakar Dakar is offline
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Quote:
Originally Posted by Dave P View Post
Thanks James unfortunately the 64212494833 is listed for both LHD and RHD cars but is only for LHD ( I ordered one and its the wrong shape)

and the fact that according to BMW the Coupe doesn't even have an aux water pump really doesn't help matters
Ah I see.

You've managed to find an error in BMW's listings - which is a rare thing!

I just had a look at Rockape's Z3M in our workshop and that shows the part number as:
64.21.2.228.656


I used the daily updated webETK via BMW's intranet and checked similar numbers (sometimes manufacturers of parts for BMW make a different number by 1 digit for some reason.
So I checked .655 and .657.

Using BMW's Parts Substitution tool it shows that 64.21.2.228.657 is a number and changes to 64.21.2.695.759


64.21.2.695.759 is the RHD version of Hose 14 (the wrong one heading to the Matrix).
But, above it is .758 the LHD version of Hose 14.


My thinking is that Hose 13 (the between Water Pump & Water Valve) should have both a LHD and RHD version listed on the catalogue.
For whatever reason, they've missed it off and only listed a single number (.833) which you found out is LHD.
I think there should be a (.834) listed too, which would be RHD: 64.21.2.494.834

I've checked if .834 is a number and yes it does go in.
It dead-ends and doesn't show as fitting any car.
Interestingly it had a description of Hose 14, but I reckon this is why it wasn't added to the catalogue.
Someone named it incorrectly and then someone else couldn't work it out (at input stage) so said "not my job" and left it out!
Anyway, to slightly prove the theory, 64.21.2.494.834 does go into my system and has a price similar to 833.
The fact it gives me a price tells me it's an actual part and is 99% likely to be able to be ordered. Where as if a number doesn't go in, it won't give you a price and says 'unknown part number'


I can't say for sure, but I would next try ordering 64.21.2.494.834.

Best regards,
James
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