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+---- Thread: Solved ✔ F10 m5 crankshaft sensor failure (/showthread.php?tid=53697)
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F10 m5 crankshaft sensor failure - Fatalix - 16-07-2019
Hi.
Im having a m5 f10 2012 which has been driving 110.000km in for diagnosis due to limp home mode.
Car is returning fault code "160020 - crankshaft sensor: signal implausible"
Crankshaft sensor was replaced due to the same errorcode 3 weeks ago, and have been driving perfectly untill now. Car ilevel is 19-03-5xx.
Anyone have got any ideas? It is cutting out for a short second now and then when driving.
Im pretty lost here.
Thanks!
RE: F10 m5 crankshaft sensor failure - Node - 16-07-2019
Did you replace it with quality sensor? I have an experience that cheaper ones work exactly like that - cutting for few seconds first and that time increases. I had random quality issues even with BMW sensors. These observations are not specific to M5.
RE: F10 m5 crankshaft sensor failure - Fatalix - 16-07-2019
(16-07-2019, 19:50 PM)Node Wrote: Did you replace it with quality sensor? I have an experience that cheaper ones work exactly like that - cutting for few seconds first and that time increases. I had random quality issues even with BMW sensors. These observations are not specific to M5.
Yes. OEM part, also new part number that replaced the former one. Service function for the replacement was also done when it was replaced.
RE: F10 m5 crankshaft sensor failure - Node - 16-07-2019
From my experience I would blame the new sensor. Especially if it worked for 3 weeks.
P.S. Although faults in OEM parts are rare, I had much better luck with original Bosch/Siemens crankshaft sensors than BMW OEM.
RE: F10 m5 crankshaft sensor failure - Fatalix - 16-07-2019
Will take this into consideration. Thanks Node.
RE: F10 m5 crankshaft sensor failure - Fatalix - 25-07-2019
(16-07-2019, 20:06 PM)Node Wrote: From my experience I would blame the new sensor. Especially if it worked for 3 weeks.
P.S. Although faults in OEM parts are rare, I had much better luck with original Bosch/Siemens crankshaft sensors than BMW OEM.
A second new oem sensor didnt fix anything either. Still having same issue. Having mixture fault codes across banks now also.
RE: F10 m5 crankshaft sensor failure - KaiO - 25-07-2019
I had this error in my 550 which has basically the same engine.
I stripped the whole engine and replaced solenoid valves, all sensors, chains, gaskets. Even the camshaft sprokets and the steam valve shafts. Now engine runs smoothly as it should and oil consumption is zero again. It took me two weeks and 3000 Euros in spare parts. official Dealer Prince is 8500-9000 Euros. This engine is very sensitive...
RE: F10 m5 crankshaft sensor failure - Fatalix - 26-07-2019
(25-07-2019, 20:30 PM)KaiO Wrote: I had this error in my 550 which has basically the same engine.
I stripped the whole engine and replaced solenoid valves, all sensors, chains, gaskets. Even the camshaft sprokets and the steam valve shafts. Now engine runs smoothly as it should and oil consumption is zero again. It took me two weeks and 3000 Euros in spare parts. official Dealer Prince is 8500-9000 Euros. This engine is very sensitive...
Yeah well i am also afraid that the timing chain has stretched, but in thinking the misfiring is causing the inplausible signal from the crankshaft. Which will lead to a mixture faultcode.
RE: F10 m5 crankshaft sensor failure - Fatalix - 27-07-2019
Anyone got any other hints? Cant seem to figure this out, before having to check timing..
RE: F10 m5 crankshaft sensor failure - Clusters - 27-07-2019
Have you inspected the harness for broken wires, scope the crank signal at the sensor and at the ECM.
How about the air gap? I believe they are sensitive and should be 0.55mm.