The Pierburg pump is an all aluminum upgrade. I put one in a couple months ago. It works great, less prone to leaking and I have only ever read/heard good things about it. It is even a few dollars cheaper than the OE VDO pump.
Pierburg. It’s literally exactly the same just no BMW logo.
Pierburg is the OEM maker of the BMW water pump. Spending the extra for the BMW is ridiculous when they are 100% the same exact same pump from the same company from the same factory.
I owned a 2009 4.2L V8 S5, had to get a new water pump & housing. euro specialty shop did it for me for ~$700.
New parts should be in tomorrow (Pierburg pump). I'll update again after everything is back in! As a small detail, I noticed a brown seal-looking thing stuck in the impeller of the water pump (Continental, BMW logo. Probably factory) I am thinking the pump internally failed while spinning, and the internals took the hit and self-destructed. Hence the total BSD failure code. Just a guess though.
I had mine done on my 2018 S4 from an Audi dealer in PA. Cost me $3,928 total. They replaced the water pump and hoses, coolant regulating valve, vacuum control valves and lines, and the serpentine valve. The water pump is what failed and took everything else with it.
Audi doesn't have the best record with water pumps and housings. On the 8V S3, the pump would start to leak, but it would drip onto the splash guard and never make it to the ground. The only signs were coolant smell and frequently needing to top off the coolant.
2017 Q7 3.0T. Steadily using more oil over life of car. Now a quart every 350 miles. It doesnt have the power it used too. $1500 for a new water pump at 54,000 miles.
The only issue I’ve had with Audi over about 200k miles split between an 87 cs turbo Quattro and a 15 a5 cabrio is they each needed a water pump around 90k
I would get a vdo/continental water pump. I’ve bought the all aluminum water pump from pierburg and it died in about 800 miles.
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