Bad Water Pump?

FlyingBuckeye3 · 07-31-2019, 08:27 AM

A couple weeks ago I embarked on a 3 hour drive to have my coolant expansion tank burst 1 hour in to the drive. I had the car towed back and replaced the tank myself. I drove the car around town for 2 weeks with no issues.

Fast forward to Monday, I took off on another 3 hour drive. Almost two hours in to the drive, I got the dreaded “Car Overheating” message on my I-Drive. I was able to nurse it by driving it and shutting it off a couple times but ultimately had it towed to my destination. I took it to a local mechanic who tried many times to get the car to overheat as it did for me, but the car operated fine.

The car is now currently 2 hours away so I’m not able to pull codes. Does it sound like the water pump? It’s just throwing me off in that it’s fine around town but overheats when I’m on an extended drive. The car is a 2011 335 with 87k miles. As far as service records show, it’s an original water pump and thermostat.

Thanks guys!

FlyingBuckeye3 · 07-31-2019, 08:31 PM

Anyone?

Mantraxalos · 07-31-2019, 10:05 PM

Hello the water pump could be possible. Since you can't get codes maybe try the bleed procedure to hear it running. I've had two n52 cars overheat due to dead / bad batteries but it sounds like your battery is fine.

NinetyEight740 · 07-31-2019, 10:27 PM

Just replace it, even if it isn’t the only thing going on it’s always good to know you have a new pump in your car. It’s the biggest downfall in these cars.

07-31-2019, 08:27 AM	#1
FlyingBuckeye3 Private 13 Rep 63 Posts Drives: 2011 N55 335xi Join Date: Jul 2018 Location: Ohio iTrader: (0)	Bad Water Pump? A couple weeks ago I embarked on a 3 hour drive to have my coolant expansion tank burst 1 hour in to the drive. I had the car towed back and replaced the tank myself. I drove the car around town for 2 weeks with no issues. Fast forward to Monday, I took off on another 3 hour drive. Almost two hours in to the drive, I got the dreaded “Car Overheating” message on my I-Drive. I was able to nurse it by driving it and shutting it off a couple times but ultimately had it towed to my destination. I took it to a local mechanic who tried many times to get the car to overheat as it did for me, but the car operated fine. The car is now currently 2 hours away so I’m not able to pull codes. Does it sound like the water pump? It’s just throwing me off in that it’s fine around town but overheats when I’m on an extended drive. The car is a 2011 335 with 87k miles. As far as service records show, it’s an original water pump and thermostat. Thanks guys!
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07-31-2019, 08:31 PM	#2
FlyingBuckeye3 Private 13 Rep 63 Posts Drives: 2011 N55 335xi Join Date: Jul 2018 Location: Ohio iTrader: (0)	Anyone?
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07-31-2019, 10:05 PM	#3
Mantraxalos Second Lieutenant 78 Rep 244 Posts Drives: 2006 330i Manual Join Date: Nov 2016 Location: Detroit iTrader: (0) Garage List 2007 Z4 3.0i [0.00] 2006 330I [0.00]	Hello the water pump could be possible. Since you can't get codes maybe try the bleed procedure to hear it running. I've had two n52 cars overheat due to dead / bad batteries but it sounds like your battery is fine.
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07-31-2019, 10:27 PM	#4
NinetyEight740 Major General 231 Rep 5,691 Posts Drives: 2 - 2013 535i msport Join Date: Nov 2008 Location: Orange County California iTrader: (2) Garage List 2010 E91 [0.00]	Just replace it, even if it isn’t the only thing going on it’s always good to know you have a new pump in your car. It’s the biggest downfall in these cars.
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