I replaced mine with a pierburg one. after install it was fine till I hit a decent bump, which led to overheating limp mode (i stopped the car as soon as this happened).
Pros: fine after install
Cons: overheating limp mode
Reviews of Pierburg water pump
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113 votes
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Get a pierburg if you can for the water pump. They’re more OEM than Mehle is for water pumps even though both are OE manufacturers.
Pros: more OEM
I kind'a have some project and I need to use Pierburg CWA50, all I got in my country is this pump from benz (**A0005001986**), is it same model as Pierburg CWA50? Because the head pump is same but the connector is different (facing upwards). I tried to find specs from this model, the result is empty, can't find any clue about flow rate. I do have original code from Pierburg, which is **7.04933.56.0**, but can't find flow rate either.
Part number: A0005001986
when my original pump went bad, i went to Peirburg so that the plastic housing wouldnt crack. Pump lasted about 20,000 miles, bought another one from fcp euro for the lifetime warranty but this one lasted 20 mins before i got those same codes and overheated.
Cons: short lifespan, immediate failure
Mileage: 32187 km
I've had 2 of these die in less than 1 year. Junk!
Cons: died in less than year
Pierberg all aluminium has been good in mine.
Pros: good performance
Been on my Pierburg full metal one a few years now, no complaints
Pros: no complaints, reliable
Honestly, personally I wouldn't get a Pierburg. Got one, the all aluminum one and it failed right away, first day of driving. It was hard to push in the plug as well. And they are made in China these days, cheaply made it seems.
Cons: failed immediately, difficult plug, cheaply made
I changed the water pump on my e92 335i N54 2008 after it left me stranded 6 months ago. Approximately 2-3 months later, the car started running out of battery intermittently. At first it was once every month, then every 2 weeks, now it is every week. I've narrowed it down to the water pump staying on when I shut the car off, even when cold. The old water pump did this exact same thing before leaving me stranded. Both the old and new pumps are the all-aluminum Pierburg. I tried running the water pump test procedure with ISTA right after the pump kept running (after shutting down the car) and ISTA couldn't communicate with the pump. However, it did let me run other procedures, so that was not the problem. After letting the car sit down for 30 mins, ISTA was able to communicate with the pump and run the procedures. I have absolutely NO codes. My car does NOT have an IBS sensor, so that is not the problem. If I open a door, unlock the car, etc., the pump stops running. I'm about to purchase a new pump because I have troubleshot everything I could think of, but I can't imagine this brand new Pierburg pump is failing so prematurely (less than 5k kms).
Cons: premature failure, battery drain, pump stays on
Vehicle:
BMW
Mileage: 5000 km
Pierburg ONLY for water pump, no other brand is good.
Pros: best brand
Vehicle:
BMW
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What we know about Pierburg water pump
The brand is registered in Germany. Official website: http://www.pierburg.cz/cs/.
In March 2026, PartReview users have a mixed opinion of Pierburg water pump.
PR Score — 64 out of 100, based on 35 reviews and 113 votes. 19 positive reviews, 8 neutral reviews, 8 negative reviews. Average rating — 3.5 (out of 5). Vote balance: 73 up, 40 down.
In the ranking of the best water pump this part is at position 4, behind Hepu and GRAF , but ahead of OEM BMW and GMB.
Users also evaluated the qualities of Pierburg water pump:
- Leaks - coolant traces around the pump or from the weep hole - rated positively. 3.8 points out of 5.
- Noise - whine or growl coming from the pump area - rated positively. 4.8 points out of 5.
- Overheating - temperature rises, especially with the a/c on - rated ambivalently. 2.8 points out of 5.
Water pump Pierburg in car-specific ratings
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Water pump Pierburg in comparisons
There are 11 comparisons of Pierburg water pump with other manufacturers on PartReview.
In particular, see which water pump are better: OEM Toyota or Pierburg, GMB or Pierburg, Saleri or Pierburg, AISIN or Pierburg, Hepu or Pierburg .