R50/53 Crank Position Sensor Failure
#1
Crank Position Sensor Failure
Can anyone here describe symptoms of a intermittently failing crank position sensor? I think that's what I've got going on. No codes, but the car will cut out momentarily above 3500 rpm. It doesn't do it all the time. I hate intermittent failures, they're so frustrating to diagnose. I wish it would just fail completely, then I could replace the offending part.
#2
#4
#5
Not an R53, but have been dealing with this intermittent issue on an E46 (BMW 325i). No codes, stutter at speed and super random and VERY annoying. Wife refused to drive the car fearing it would die at any moment. Some days no issues at all and then later on, the behavior comes back right away. After fuel pump, filter, cam sensors, plugs, coils, checking grounds, I finally bit the bullet and replaced the crankshaft sensor. So far, after 250 miles, the random intermittent has not returned. Mileage is at 195K miles.
For another car, the crankshaft sensor just flat out failed and check engine light came on. Hard to start, limp mode, CEL, the classic failure. Codes confirmed the sensor went kaput. Replaced it and all was fine afterwards. Mileage was about 200K miles.
Maybe ~200K miles is around the limit for a crankshaft sensor???
For another car, the crankshaft sensor just flat out failed and check engine light came on. Hard to start, limp mode, CEL, the classic failure. Codes confirmed the sensor went kaput. Replaced it and all was fine afterwards. Mileage was about 200K miles.
Maybe ~200K miles is around the limit for a crankshaft sensor???
#6
Not an R53, but have been dealing with this intermittent issue on an E46 (BMW 325i). No codes, stutter at speed and super random and VERY annoying. Wife refused to drive the car fearing it would die at any moment. Some days no issues at all and then later on, the behavior comes back right away. After fuel pump, filter, cam sensors, plugs, coils, checking grounds, I finally bit the bullet and replaced the crankshaft sensor. So far, after 250 miles, the random intermittent has not returned. Mileage is at 195K miles.
For another car, the crankshaft sensor just flat out failed and check engine light came on. Hard to start, limp mode, CEL, the classic failure. Codes confirmed the sensor went kaput. Replaced it and all was fine afterwards. Mileage was about 200K miles.
Maybe ~200K miles is around the limit for a crankshaft sensor???
For another car, the crankshaft sensor just flat out failed and check engine light came on. Hard to start, limp mode, CEL, the classic failure. Codes confirmed the sensor went kaput. Replaced it and all was fine afterwards. Mileage was about 200K miles.
Maybe ~200K miles is around the limit for a crankshaft sensor???
I wish the damnable thing would just fail completely, then I would know for sure what it is. I HATE intermittent failure! It's so hard to diagnose.
Last edited by cut7; 05-24-2022 at 10:08 AM.
#7
Not an R53, but have been dealing with this intermittent issue on an E46 (BMW 325i). No codes, stutter at speed and super random and VERY annoying. Wife refused to drive the car fearing it would die at any moment. Some days no issues at all and then later on, the behavior comes back right away. After fuel pump, filter, cam sensors, plugs, coils, checking grounds, I finally bit the bullet and replaced the crankshaft sensor. So far, after 250 miles, the random intermittent has not returned. Mileage is at 195K miles.
For another car, the crankshaft sensor just flat out failed and check engine light came on. Hard to start, limp mode, CEL, the classic failure. Codes confirmed the sensor went kaput. Replaced it and all was fine afterwards. Mileage was about 200K miles.
Maybe ~200K miles is around the limit for a crankshaft sensor???
For another car, the crankshaft sensor just flat out failed and check engine light came on. Hard to start, limp mode, CEL, the classic failure. Codes confirmed the sensor went kaput. Replaced it and all was fine afterwards. Mileage was about 200K miles.
Maybe ~200K miles is around the limit for a crankshaft sensor???
BTW, my Mini has just a tick over 200k.
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#8
Ironically, the R53 has 246K and it presumably has the original crank sensor since it's not been swapped out yet by me or the kid. Did I just jinx that car?!
#9
Yep, will do. I am eager to get this intermittent issue in the rear view mirror as it really dampens the trust factor.
Ironically, the R53 has 246K and it presumably has the original crank sensor since it's not been swapped out yet by me or the kid. Did I just jinx that car?!
Ironically, the R53 has 246K and it presumably has the original crank sensor since it's not been swapped out yet by me or the kid. Did I just jinx that car?!
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