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11-30-2017, 11:43 AM | #89 |
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Great discussion in here!
I added a water pump to my next parts order list. For me, I don't see the benefit in delaying a $500 cost until a breakdown. With all the opinions thus far, the common consensus is the water pump will fail at some point. Whether it will result in a warped head and a big mess as with previous BMW 6 cyl designs remains to be seen. I suppose I'm at a point in my life and a location (Las Vegas) where I'd rather take care of it in my garage on a Saturday afternoon of my choosing rather than waiting for it to implode when it feels like it, who knows if that will be in another 100 miles for 10,000 miles or even another 100,000. It's time for a coolant flush anyways so may as well! I've already taken care of several of the more common 1er issues including OFHG, coils, and DMTL pump, and ESS gasket. I figure if I knock out the water pump my car should be pretty bulletproof for a while. I'll just wait for the valve cover gasket to start weeping and start tackling the suspension. |
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11-30-2017, 12:29 PM | #90 |
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If my memory serves, I think the life of electric pumps are based on hours of operation, not miles driven or age of vehicle. So, with such low miles, the likelihood of failure is low (as long as the cooling system is in good condition, and the amount of idle time is not huge).
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11-30-2017, 02:51 PM | #91 |
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Reading through this thread makes me want to drive my 1er. Too bad its stored for the winter. Next spring I will perform a coolant flush.
I heard that flushing your coolant every 4-5 years (or 50k) miles should extend the life of the waterpump. Edit: I am more inclined to believe waterpump life depends more on hours of operation.
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11-30-2017, 07:57 PM | #92 |
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In the above posts I am reading several theories about the cause of water pump failure. I think these are the most popular.
1. Age of pump 2. Miles driven on pump 3. How hard car has been driven with or w/o a special tune 4. How long the engine has been running including idling 5. Composite impeller blades 6. Thermoplastic impeller blades Did I miss anything? Anyway... I would like to propose a new theory. 7. Number of heat-cool cycles the pump goes through. I do not know what kind of plastic material is used to make the impeller blades, but I read that some thermosetting plastics become more brittle when exposed to multiple heat-cool cycles. Can anyone improve my understanding of the plastic used to make our water pump impellers and the associated chemical bonding properties of that plastic? Also, is it possible that the number of heat-cool cycles could affect water pump bearing life to a great degree? Just curious about the true cause of water pump failure. Not that we can change the number of heat-cool cycles, but at least we can use that measure as an indicator of whether a pump should be changed out preemptively. Thank you... Peace... Mack
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11-30-2017, 08:12 PM | #93 |
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Someone really needs to do a root cause failure analysis on one of these. I kind of wish I'd saved mine so I could take it apart to look for traces of wear (mine didn't fail, but was replaced preemptively), but I don't have enough hours in the day as it is.
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11-30-2017, 09:15 PM | #94 |
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Seems like a contributing factor would be system maintenance- like coolant flush for example.
With both lubrication effects and the anti-scale attributes of coolant I can't help but think flushing in some fresh fluid every 24-ish months would help extend pump lifespan.
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11-30-2017, 09:35 PM | #95 |
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Just this week, my 2010 135i needed to have the water pump replaced today at nearly 125,000 miles. Fortunately, it was at the dealership and had just had the intakes sandblasted with walnut shells when after the mechanic test drove it, the water pump started throwing errors. My SA was surprised that my car had not had either the sandblasting or the water pump replaced at 125,000 miles.
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11-30-2017, 09:57 PM | #96 |
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I just remembered my Dinan tune and its effect on the water pump. It says on their website "water pump speed increased, to improve cooling," so it will likely shorten the life of the water pump. I guess I gotta pay if I wanna play. Worth it to me anyway.
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11-30-2017, 10:02 PM | #97 | |
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11-30-2017, 10:05 PM | #98 | ||
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Esteban44809.00 |
12-01-2017, 04:34 AM | #99 | |
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Or do you possess some magic juju that protects your car from mechanical breakdown?
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So, that's it. I am doomed. There is no patch, no methadone, no substitute. Curse you BMW. Curse you and your seamless power delivery. Curse the incredible sense of road feel. Curse the comfort, the luxury, the envious looks from the masses. I am... hopelessly addicted.
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12-01-2017, 04:54 AM | #100 | |
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Additionally, I think we have plenty of anecdotal evidence to know what happens when our water pumps fail while driving. Our 1-series are smarter than us, in that they quickly go into limp mode when overheating occurs. This is to protect the engine from serious damage and I think it accomplishes that very well. Let us know how the DIY pump replacement goes! Peace... Mack
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So, that's it. I am doomed. There is no patch, no methadone, no substitute. Curse you BMW. Curse you and your seamless power delivery. Curse the incredible sense of road feel. Curse the comfort, the luxury, the envious looks from the masses. I am... hopelessly addicted.
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Esteban44809.00 |
12-01-2017, 08:21 PM | #101 |
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Just had mine original water pump replaced at nearly 125,000 miles.
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12-01-2017, 08:30 PM | #102 | ||
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12-02-2017, 04:39 PM | #103 |
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Got me thinking... How many sets of tires did you have to buy to make 125,000 miles? Three, four, five?
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So, that's it. I am doomed. There is no patch, no methadone, no substitute. Curse you BMW. Curse you and your seamless power delivery. Curse the incredible sense of road feel. Curse the comfort, the luxury, the envious looks from the masses. I am... hopelessly addicted.
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12-02-2017, 10:00 PM | #104 |
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1. Get towing from your insurance company
2. When it fails, there's no warning 3. Be prepared and know where you want to have your car towed. Have a trusted mechanic, possible an indie shop. If you just let the tow truck driver tow it to the nearest stealer, you will be quoted an insane amount ($4500). I speak from experience... 4. Be mentally prepared that it will happen at a random time |
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12-02-2017, 10:13 PM | #105 | |
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1x set of OEM Bridgestone RFTs which I believe were new when I picked up the car as a CPO 1x Michelin PSS set 1x Michelin Xi2 winter tires On my second winter of a new Michelin Xi3 tire and will probably wear out my current set of Michelin PSS. So four sets of tires. Usually I do about 6,000 miles on both winters and summers each year. I imagine if you have a 135i and a heavy foot you'll probably go through tires faster than me. I am a spirited but mostly restrained driver. Three or four track days were done on some of my summers. |
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12-02-2017, 10:14 PM | #106 | |
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E82 N54 engines do not have a coolant temperature gauge. |
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12-02-2017, 10:29 PM | #107 | |
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12-02-2017, 10:35 PM | #108 | |
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So: 3 going on 4 sets
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mackeroni326.50 |
12-03-2017, 07:26 AM | #109 | |
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My pump, thermostat and hose that connects the two came out to $1400. At the dealer. In NYC, where prices are a bit higher. |
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12-03-2017, 09:51 AM | #110 | |
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Dealers local to me in SF bay area are slightly higher. Two local indies quoted $1200 & 1400 for all parts, labor, and tax. But don't have loaners or coffee. |
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