I came into possession (was given) an '08 R56 N14. Came from my father in law with "all it needs is a battery", but hey, the price was right. Tried to run hot on the trip (200ish mi) home, but it was kept to yellow and limped home. I later learned that the original engine had been replaced. Not a deal breaker (see above $), but doesn't invoke the warm and fuzzies. Head gasket replaced, ran well and I'm still not in too deep. Fast forward a few months and the hpfp switched into "tractor mode" as i assume it began giving up the ghost. One day it actually died in traffic, and would not restart, rough or otherwise, starting was attempted to the point of killing the battery. Got the car home, charged and had the battery checked. Getting ready to tear into the fuel pump and for some reason I thought to turn the engine over. It cranked sluggishly for a couple seconds before I aborted. Also, my favorite color is blue. Hopefully that is enough of a start to the story for me to ask: aside from getting the starter checked and replacing the hpfp are there any other components to check that may have been collateral damage? Tia for any input!
JT
​​​​​​Tldr: could a N14 hpfp failure damage anything further?

 

Hopefully it just needs the HPFP replaced. If that pump goes out, just makes it hard to start and run - shouldn’t effect anything else. Might want to invest in a quality BMW/Mini specific code reader before getting too deep into the car. Plug it in, then start the troubleshooting.

 

Update: New hpfp installed, tested good battery reinstalled, slow crank no start, faint electrical "ozone" smell. Tried one more time up on ramps, no dice. Immediately felt the starter, not even warm... Any ideas before i pull/test the starter?

 

I bought a MINI that needed a lot of TLC but the price was right too. By far the best item I bought for the car that saved money in the end was a Foxwell scanner. Make sure to get the one with the BMW codes. It not only can scan all of the codes but can also run many component test from the tool. It will also display real time diagnostics. I was able to check misfire conditions as they happened and most of the sensors. I highly recommend it if you do not have one.

Sorry I do not have an answer to your question but I wish I had purchased the scanner prior to my first repair attempt. The normal OBDII ones do not cut it with these cars.