3rd water pump failure!
#1
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Location: Charlotte NC
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My Ride: 535i Sports/Premium package, Sports transmission w/ paddle shifters, Tinted tails/side markers/reflectors, Blacked out emblems
Model Year: 2008
3rd water pump failure!
I’ve now had my 3rd water pump fail. The first time was around 40k and it was electric failure. Second one failed less than 15K and the plastic case cracked. Now the current one is not even 2 years old so for me less than 10K is on it and it’s leaking like a sieve. Could there be an underlying issue here or am I just the unluckiest E60 owner in the world??
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My Ride: 2007 530xi: Sport, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, HD Radio, SAT, Custom NCS coded options 2008 535xi: Sport, Night Vision, NAV, PDC, HUD, Cold Wthr, CA, Logic 7, SAT, Custom NCS coded options, Rear Seat Heat Retrofit, Passport 9500ci
Model Year: 2008
Engine: N54
wow - I have never heard of such a bad streak of failing pumps in a single car.
I can't think of any underlying issue that could be causing it.
I can't think of any underlying issue that could be causing it.
#4
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My Ride: 535i Sports/Premium package, Sports transmission w/ paddle shifters, Tinted tails/side markers/reflectors, Blacked out emblems
Model Year: 2008
I was told yesterday the third one failed where the plastic housing met the metal housing, same as the 2nd one. Such a poor design. This one only had 4-5K on it!
#5
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I’ve now had my 3rd water pump fail. The first time was around 40k and it was electric failure. Second one failed less than 15K and the plastic case cracked. Now the current one is not even 2 years old so for me less than 10K is on it and it’s leaking like a sieve. Could there be an underlying issue here or am I just the unluckiest E60 owner in the world??
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My Ride: MY 2008 535i Black Sapphire w/Black Dakota Ltr., 17
Model Year: 2008
I have also had 3 water pumps fail by 143K Km
All have been OEM, first replacement done by dealer, second one done by an indy shop. THey had a 2 year warranty on their work so they are replacing the pump for free.
I was told yesterday the third one failed where the plastic housing met the metal housing, same as the 2nd one. Such a poor design. This one only had 4-5K on it!
I was told yesterday the third one failed where the plastic housing met the metal housing, same as the 2nd one. Such a poor design. This one only had 4-5K on it!
Love the car but and have owned since new. I have lived through the HP fuel pump, multiple fuel injectors (both banks) and replaced one bank.
Although the same manufacturer produced all four, they apparently sold an inferior pump to some independent shops. My shop buys directly from the dealer to make sure they remain accountable.
If we are just unlucky, time to get a lottery ticket.
#7
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My last failure occurrd at less than 90K Miles. The design used electric versu belt drive to reduce load on the engine and improve mileage. My calculations indicated that at an averagae repair cost of $1200 CA ($900 US) I would need to save a lot more on gas lol.
Love the car but and have owned since new. I have lived through the HP fuel pump, multiple fuel injectors (both banks) and replaced one bank.
Although the same manufacturer produced all four, they apparently sold an inferior pump to some independent shops. My shop buys directly from the dealer to make sure they remain accountable.
If we are just unlucky, time to get a lottery ticket.
Love the car but and have owned since new. I have lived through the HP fuel pump, multiple fuel injectors (both banks) and replaced one bank.
Although the same manufacturer produced all four, they apparently sold an inferior pump to some independent shops. My shop buys directly from the dealer to make sure they remain accountable.
If we are just unlucky, time to get a lottery ticket.
Why would that be?
Also, the fundamental reason to switch to electric drive cooling pump wasn't to reduce the load on the engine, since electric drive simply increases the load on the alternator, thus the load on the engine stays roughly the same and is perhaps worse due to transfer losses, but to allow variable coolant flow according to demand by changing the electric motor speed. This is not possible with belt drive coolant pump. Thus the total energy expended to cool the engine does end up to be marginally lower with the electric drive.
I guess every little bit helps, but is it worth it if the electric pumps are less reliable?
Last edited by FormerE30Owner; 02-24-2018 at 07:33 AM. Reason: Added some details.
#8
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My Ride: 13 X5 35i M-Sport (Sold) 535i M-Sport - (Sold) 07 530i Sport Gray - (Traded) 04 530i Sport Gray
Model Year: 2004
Should consider a Stewart High Performance Water Pump....My diy choice when I overhauled my complete cooling system twice...on my current 2004 and my previous 2001 530i. Some say overkill, I say replace it once and forget about it.
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