Water Pump

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Anonymous

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Hello!

So my Zed is now on 54000, I've heard of water pumps failing around the 60-70k mark so would rather do this as preventative maintenance rather than have it fail in the middle of a nice drive out!

Is there any way to check the condition of the pump before spending £££ on something which may not fail for another 10k+ miles. I've had a search of the forums but couldn't find anything with regards to testing it.

Cheers!
 
From what I've heard because they are electric there's no warning - the temp gauges climbs into the red and you call the breakdown services :cry: I'm on similar miles as you, but wont be worrying too much until 70 - 80k

I've got a Poll going - you may find it informative:
http://www.z4-forum.com/forum/viewtopic.php?f=3&t=95479&hilit=water+pump+poll
 
Mine failed well into the 90s so don't worry too much and also I got plenty of warning... Well over a month in fact.

Mine first had a random overheat in March, killed the engine opened the bonnet to let it cool then when i started back up it was fine. I actually posted on here and got a load of suggestions but none sounded too serious so I kept an eye on the situation and it didn't do it again for over a month, I had ordered a usb cable for carly when it first did it so when it did it again I read the fault code and saw the water pump was on its way out.

Ordered a replacement from Germany for about £200 delivered then had it fitted a week or so later.

I was using my car as a daily the whole time and so long as you kill the engine as soon as the temp starts rising you aint gonna do any damage.

Over the course of around 2 months since the fist hint of a problem and me getting the new pump fitted I think it overheated a total of 4 times. Every time I pulled over killed the engine and when I restarted it and it was fine again. Only the first time I had to open the bonnet. Second time I stopped then left a minute and started straight back up. Second and third I literally killed the engine and started again straight away. Pretty sure it was just an electrical component in the pump failing so off and on again reset it.
 
This was the cheapest when I did mine

http://www.ebay.co.uk/itm/PIERBURG-ELEKTRISCHE-K%C3%9CHLWASSERPUMPE-BMW-E90-E65-E66-E89-NEU-11517521584/161667810944?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649

But the £ to € rate has fallen since then so may not be now
 
Marlon said:
From what I've heard because they are electric there's no warning - the temp gauges climbs into the red and you call the breakdown services :cry: I'm on similar miles as you, but wont be worrying too much until 70 - 80k

I've got a Poll going - you may find it informative:
http://www.z4-forum.com/forum/viewtopic.php?f=3&t=95479&hilit=water+pump+poll
Click to expand...

I had a warning with no overheating, the rad fan would pulse on cold starts which it had never done before-apparently it does this if the pump starts to misbehave :thumbsup:
Rob
 
Mines on 101k and I've got receipts for everything apart from a water pump, so I don't think mines ever been done (2006 n52) so although they are prone to going, I don't think they're ticking time bombs like people make out

Either that or I've just been very lucky and just jinxed it!
 
OP, I think Marlon's poll shows that although they can die more keep on going than die!

(Although sadly my first Coupe needed one at 60K miles and 9 years.)

If there is any problem with the pump the OBD logs it, so if you can read the codes that may give you a bit of notice - otherwise keep watching the temperature gauge! :thumbsup:
 
Normally you don't get a warning and when it fails that's it.

Mine went at 5x,xxx something miles and it's a 56 plate. It left me stranded and it was a pain as it's my daily. Our e91 has the same engine and it's on 77k 08 plate but it's still fine. Been contemplating changing it based on my experience but haven't felt compelled enough to stump up the cash, although I think I should because we often go on continental trips.

If you can afford it and you plan to keep the car I'd say do it unless you don't mind the inconvenience of getting stuck without warning.
 
Steve84N said:
Normally you don't get a warning and when it fails that's it.

Mine went at 5x,xxx something miles and it's a 56 plate. It left me stranded and it was a pain as it's my daily. Our e91 has the same engine and it's on 77k 08 plate but it's still fine. Been contemplating changing it based on my experience but haven't felt compelled enough to stump up the cash, although I think I should because we often go on continental trips.

If you can afford it and you plan to keep the car I'd say do it unless you don't mind the inconvenience of getting stuck without warning.
Click to expand...

Did you try turning it off and on again? Daft question I know but just that it worked for me when mine was failing
 
so they seem to also fail in different ways? either dead completely or 50/50 aka wont turn on sometimes and work the other?

mine is on 62k now no waterpump change so we'll see how it gets on. It's my DD so hopefully it wont give up on the way to work.
 
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