Hey guys, im in the market to change all 4 CPS (both intake and both exhaust). I had another e39 M5 and was able to source 4 new CPS, they were original, but just had the "BMW" engraving scratched off. They worked perfectly.
I tried to go this route a while back. First set were chinese knockoffs that I refused to put in my car and in the second set, one of the sensors was DOA. Ended up buying all new BMW branded sensors from ecstuning. Wasn't worth the hassle to save 75 - 100 bucks.
I got a set of 4 from Morristown BMW for $107 each, which isn't that much different than the "OEM" ones you're talking about, except they are definitely genuine BMW parts. I don't know what they would be shipped to DR though.
I just wrapped up an install of 4 from this supplier. They looked to be good quality and similar to the originals, except using the new design. I believe these are from an OEM supplier.
Car runs great with the fresh CPS. I also replaced both TPS because I was getting a code for those and the throttle was acting up big time. 102K miles, so not a surprise.
Not a fun job. If you can get the drivers side intake without removing the bracket that holds the wiring harness - do that. Try from under the car. I removed it and getting the bolts started to re-install that was the single most time consuming and frustrating part of the job. Would not have been so bad if I hadn't removed that. Did it before I went under the car. Seems like you can get to the bolt if you remove the connector first and leave that dang bracket in place.
Otherwise pretty straightforward job. A lot more involved for me since I had to remove the entire plenum to get to the TPS.
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