e8x electric waterpump failure poll...

[WDE82]

Originally Posted by fotontom

Would appreciate some additional insight. Mine is a 2012 128i 'vert with 95K miles. i believe the WP is original. I've seen the replacement WP PN as 11-51-7-632-426 but Tischer shows 11-51-7-586-925 as the PN for a 128i.

The Tischer PN indicates a rebuilt unit, and the 11-51-7-632-426 PN seems to indicate 'new' although they are the same price.

Has there been a redesign or upgrade by any other manufacturer or rebuilder for the WP? If so, please indicate details. Thanks!

11517586925 is the latest 128i part number for N52/N51.

https://www.realoem.com/bmw/enUS/par...925&series=E82


11517632426 is for the 135i and is superceded by 11519455978

https://www.realoem.com/bmw/enUS/par...978&series=E82

[Hybrid G]

2012 135i n55
-failed at 79k miles
-replacement cost around $1200cdn for parts and labor for both the water pump and thermostat
-no symptoms before it happened, was driving fine one day and failed the next day and I had to limp it home and to the garage, driving like half a mile then shutting it off as temps climbed for 10 minutes and repeating till my destination

[BMWGuy4852]

Hello, I'm a new member.

The water pump on my 2012 135i M-Sport failed 2/17/20 at 45,768 miles.

I had the BMW Gold Warranty when it failed. It only covered the water pump and not the thermostat. It'll be interesting to see how long the thermostat lasts!

BTW, the car went into limp mode directly in front of the dealer.

[WDE82]

Originally Posted by BMWGuy4852

Hello, I'm a new member.

The water pump on my 2012 135i M-Sport failed 2/17/20 at 45,768 miles.

I had the BMW Gold Warranty when it failed. It only covered the water pump and not the thermostat. It'll be interesting to see how long the thermostat lasts!

BTW, the car went into limp mode directly in front of the dealer.

The thermostat was probably still good but they replace it because it's right there.

[BMWGuy4852]

I was merely pointing out that the BMW Gold Warranty doesn't do any proactive repairs or maintenance like most owners would do.

My guess is they just replaced the WP and took the car for a run to see if the oil temperature was OK. After the repair, I did a scan and checked the coolant temperature to see if it was OK.

I also suspect the thermostat won't need replacing anytime soon.

[NorthernDancer]

2008 128 with 65K miles. Still original. Original battery too.

[Mybimmer]

2010 135i original pump just shit it self @ 138k km's

[Retroem]

I have a 2012 128i with 55k miles and the original water pump. Not signs of failing yet. Although I am planning to replace it hopefully before winter break.

[Wes913S]

...And I have no idea if my 128i with 179k miles has its original water pump. I haven't seen any records of it from the previous owner but I have no clue if the FIRST owner did anything. I really should just replace it anyway..

[Kowalski2011]

My 2011 135i WP failed fall of 2020 at 59K. First overheat and limp mode on the freeway. Waited 20 minutes and drove off, saw coolant in engine bay seemingly from expansion tank and/or cap. Drove home 50 miles no problem. I suspected the WP but thought this fail would be absolute and not intermittent. Code pointed to failed pump. I went ahead and replaced the expansion tank, WP and tsat.

[WrathOTM]

Chiming in to say I'm going on 63k with my 1 that I've had for a week. Under close inspection I can see coolant seeping out and around the water pump area, so within a month or three (before winter) I'll change it and alllllll the related tstat and plumbing parts.

[niceast]

2011 bmw 135i 71,000 miles.
code 377A Engine cooling system: Deactivation of Coolant pump due to blockage.

(pulled code from phone app: MHD, with super license, and wifi adapter)

[sjamkc@yahoo.com]

157000 miles original water pump and thermostat!!

[1ERFUN]

I responded to the poll, my 2009 water electric water pump failed at about the 70k watermark. I installed the improved replacement from ECS Tuning with great results.

[markslc1]

Originally Posted by 1ERFUN

I responded to the poll, my 2009 water electric water pump failed at about the 70k watermark. I installed the improved replacement from ECS Tuning with great results.

There is an improved version? Oem?

[ResinThirteen]

My 2009 just started to fail at 57k miles. Ordered replacement pump and thermostat from FCP.

[G3min1]

2010 135i - 70500 Miles - N54 - Code:2E82 Electrical Cooling Pump:Switch Off

Indy Shoop replaced waterpump and thermostant for $900

[Gray_Panther]

73k miles on my '12 still running fine. Let's see what this summer brings.

[parameter416]

I had the water pump & thermostat replaced this week (128i, 143,000km/89,000 mi). No sign of it failing. So now I'll never know if it would've lasted another 5k or another 50,000k.

[gtarwiz]

148,xxx miles and it was the thermostat that failed. Happened around the beginning of the year. 2010 128i

[jdt10768]

2013 128i msport 6mt, ~70k miles, no failure yet. Now I've jinxed myself . . .

[Maurtis]

2008 135i convertible auto, 63k miles, water pump failed last week. Shop is replacing the water pump, thermostat, coolant hose, coolant, and hood struts (unrelated but they fail on hot days) for $1,245.