e8x electric waterpump failure poll...

[delta-9-ginseng]

Originally Posted by Esteban

How many miles on your 1er?

Around 65K

[jcoop269]

Originally Posted by ________

9.7% of people? How did you get the amount of people in 1addicts? Is it posted anywhere?

340/total number of people on the forum (352,184; listed at the bottom of the home page) x 100 = 0.09% actually.....I was off on my math after multiplying by 100. That number is oh so lowwwwww.

[zx10guy]

Originally Posted by jcoop269

340/total number of people on the forum (352,184; listed at the bottom of the home page) x 100 = 0.09% actually.....I was off on my math after multiplying by 100. That number is oh so lowwwwww.

What you failed to factor in with your math is your sampling of 340 is only limited to the 1 series poll which this is based on. That 352,184 member list is the total number of members on this forum. Doing a simple search in the subforum 3 series E subforum, I was able to quickly pull up a water pump thread on N52 motors which has 149 people respond with failures to their water pump.

[jcoop269]

Originally Posted by zx10guy

What you failed to factor in with your math is your sampling of 340 is only limited to the 1 series poll which this is based on. That 352,184 member list is the total number of members on this forum. Doing a simple search in the subforum 3 series E subforum, I was able to quickly pull up a water pump thread on N52 motors which has 149 people respond with failures to their water pump.

Alright, so 489 people total on two forums, likely totaling damn near 1 million people. This really didn't prove much.

[Gangplank]

To have a useful number & representative sample you need to know the number of cars BMW built & sold with the part, the number of n52 & n54/55 motors, and the number of replacements & mileage of each.

Your saying it’s a low number. I’d best it’s much higher than you think. Not high enough or dangerous enough for the NTSB to require a recall but higher than it should be for the brand.

BMW should have done a goodwill extention of the warranty to 100k miles.

[zx10guy]

Originally Posted by jcoop269

Alright, so 489 people total on two forums, likely totaling damn near 1 million people. This really didn't prove much.

You're being obtuse. I only picked one thread I found in a search on one sub forum. There are probably other threads out there complaining about the same situation if you look. I've already showed your methods of proving your point is flawed.

[JimVonBaden]

Originally Posted by zx10guy

You're being obtuse. I only picked one thread I found in a search on one sub forum. There are probably other threads out there complaining about the same situation if you look. I've already showed your methods of proving your point is flawed.

While I agree in theory, my experience with forums is that people come to them to complain. Few come to say how their car is reliable. Also, if you combine forums, you have to account for those who complain on multiple forums. This is exactly the same on the BMW motorcycle forums. If you just read a few threads on issues, you will find the same people complain on all of them, and multiple times. It skews the numbers.

Fact is, as said, only BMW has any idea of the real numbers, and they are not sharing.

[zx10guy]

Originally Posted by JimVonBaden

While I agree in theory, my experience with forums is that people come to them to complain. Few come to say how their car is reliable. Also, if you combine forums, you have to account for those who complain on multiple forums. This is exactly the same on the BMW motorcycle forums. If you just read a few threads on issues, you will find the same people complain on all of them, and multiple times. It skews the numbers.

Fact is, as said, only BMW has any idea of the real numbers, and they are not sharing.

Well, I would have to trust that the numbers on the 3 series forum isn't going to be skewed too much because the poll was 3 series specific by someone who doesn't have a 3 series.

I'm also factoring in my friend who is a BMW dealer tech. He acknowledges the water pump is a weak point in these vehicles and he's been wrenching for this particular dealership going 3 decades and is one of their senior techs.

[JimVonBaden]

Originally Posted by zx10guy

Well, I would have to trust that the numbers on the 3 series forum isn't going to be skewed too much because the poll was 3 series specific by someone who doesn't have a 3 series.

I'm also factoring in my friend who is a BMW dealer tech. He acknowledges the water pump is a weak point in these vehicles and he's been wrenching for this particular dealership going 3 decades and is one of their senior techs.

No offense to your friend, but I have very little faith in comments by dealer techs. They often are completely full of crap, or have just plain bad ideas and concepts.

[zx10guy]

Originally Posted by JimVonBaden

No offense to your friend, but I have very little faith in comments by dealer techs. They often are completely full of crap, or have just plain bad ideas and concepts.

That's your perrogative. I know my friend. I've been around the auto repair business enough to know who knows their stuff and who is full of crap. My discussions with him about BMWs in general have yielded very honest and straight forward discussions that are unbiased and not fan boy based.

He's been at this a long time and has seen a greater sampling than pretty much anyone here. So yeah, I am putting more weight on what he says.

[MightyMouseTech]

Originally Posted by Gangplank

To have a useful number & representative sample you need to know the number of cars BMW built & sold with the part, the number of n52 & n54/55 motors, and the number of replacements & mileage of each.

Your saying it’s a low number. I’d best it’s much higher than you think. Not high enough or dangerous enough for the NTSB to require a recall but higher than it should be for the brand.

BMW should have done a goodwill extention of the warranty to 100k miles.

It really is not all that common. We do more N63 engines than 1er water pumps.

[zx10guy]

Originally Posted by MightyMouseTech

It really is not all that common. We do more N63 engines than 1er water pumps.

I read up on the N63 issues. What a nightmare. My buddy is also very familiar with the N63 issues.

[gjm120]

If only I can make my water pump (and all the vulnerable gaskets) fail before I'm off of CPO coverage.

[Lucky1]

Which fuse powers the input of the pump?

Getting 2E85 and 2EF4 regularly. Battery/electrical issue or a pump on its way out? Going to try to disconnect the battery and reset the system

Also can anyone confirm if the coolant temperatures are within expected operation for 5 degree F weather?



Carly for BMW - detailed Fault-Code Log

Found Faults:
--Engine / Motor--
*** 2E85:Electric coolant pump, communication ***
Fault-Set 1 - ( 207152 km)

Coolant temperature OBD: 86.00 deg C
Engine speed: 2688.00 rpm
status Motorsteürung: 2.00 0-n
Voltage cl. 87: 14.62 V

Fault-Set 2 - ( 207168 km)

Coolant temperature OBD: 86.00 deg C
Engine speed: 3072.00 rpm
status Motorsteürung: 2.00 0-n
Voltage cl. 87: 14.73 V

Fault-Set 3 - ( 207552 km)

Coolant temperature OBD: 83.00 deg C
Engine speed: 1984.00 rpm
status Motorsteürung: 2.00 0-n
Voltage cl. 87: 14.73 V

*** 2EF4:Map-controlled thermostat, mechanics ***
Fault-Set 1 - ( 207192 km)

ambient temperature: 1.50 deg C
Coolant temperature Radiator outlet: 75.00 deg C
Engine speed: 2400.00 rpm
Engine temperature at startup: 13.50 deg C

Fault-Set 2 - ( 207328 km)

ambient temperature: 0.00 deg C
Coolant temperature Radiator outlet: 75.75 deg C
Engine speed: 640.00 rpm
Engine temperature at startup: 11.25 deg C

Fault-Set 3 - ( 207456 km)

ambient temperature: 2.25 deg C
Coolant temperature Radiator outlet: 75.75 deg C
Engine speed: 1952.00 rpm
Engine temperature at startup: 12.75 deg C

[printerror]

101k on my 2011 128i 6MT, pump is fine. I'm ordering a replacement this spring and I'll simply swap it out as PM.

[mackeroni]

I give up Dack! I finally had my water pump replaced at 65,010 miles, even though it was still working fine. Now I can worry less, and enjoy driving more. Haha!

Peace... Mack

[kevspassat]

'12 with 33k and failed pump.

[JHZR2]

Originally Posted by kevspassat

'12 with 33k and failed pump.

That’s scary. What indication did you have? Low miles for sure...

[Lucky1]

Originally Posted by Lucky1

Which fuse powers the input of the pump?

Getting 2E85 and 2EF4 regularly. Battery/electrical issue or a pump on its way out? Going to try to disconnect the battery and reset the system

Also can anyone confirm if the coolant temperatures are within expected operation for 5 degree F weather?



Carly for BMW - detailed Fault-Code Log

Found Faults:
--Engine / Motor--
*** 2E85:Electric coolant pump, communication ***
Fault-Set 1 - ( 207152 km)

Coolant temperature OBD: 86.00 deg C
Engine speed: 2688.00 rpm
status Motorsteürung: 2.00 0-n
Voltage cl. 87: 14.62 V

Fault-Set 2 - ( 207168 km)

Coolant temperature OBD: 86.00 deg C
Engine speed: 3072.00 rpm
status Motorsteürung: 2.00 0-n
Voltage cl. 87: 14.73 V

Fault-Set 3 - ( 207552 km)

Coolant temperature OBD: 83.00 deg C
Engine speed: 1984.00 rpm
status Motorsteürung: 2.00 0-n
Voltage cl. 87: 14.73 V

*** 2EF4:Map-controlled thermostat, mechanics ***
Fault-Set 1 - ( 207192 km)

ambient temperature: 1.50 deg C
Coolant temperature Radiator outlet: 75.00 deg C
Engine speed: 2400.00 rpm
Engine temperature at startup: 13.50 deg C

Fault-Set 2 - ( 207328 km)

ambient temperature: 0.00 deg C
Coolant temperature Radiator outlet: 75.75 deg C
Engine speed: 640.00 rpm
Engine temperature at startup: 11.25 deg C

Fault-Set 3 - ( 207456 km)

ambient temperature: 2.25 deg C
Coolant temperature Radiator outlet: 75.75 deg C
Engine speed: 1952.00 rpm
Engine temperature at startup: 12.75 deg C

Replaced the pump, all is well. It lasted 130k miles.

[kevspassat]

Originally Posted by JHZR2

That’s scary. What indication did you have? Low miles for sure...

I forget what the exact code was, but it was the one that pops up when the pumps fail. I had all the symptoms of a failing/failed pump based on what I found on other threads.

Swapped it out and is good to go, so thats the good news. Seriously hoping I get at least 75k out of this one....

[dsocold]

A update on my 09 135i my new water pump** i bought from fcp went bad in 2 months. Luckily i replaced it for free through fcp and installed it myself.

[MAMSport]

2013 with 46k miles still fine N52 modified with 3-stage and software. Will be doing coolant flush soon.