Crankshaft Sensor Replacement Difficulty - BMW 3-Series (E90 E92) Forum

binaryagent · 05-21-2010, 08:58 AM

Does anyone know how difficult it is to replace the crankshaft sensor on a 335i? I apparently need a new one and the dealer is charging me over $500. I can see that the part itself is $116 so he's got to be figuring a couple of technician hours for the labor.

Thanks for the help.

scottp999 · 05-21-2010, 10:06 AM

Crankshaft looks very easy. Because it's on the lower part of the block you need to raise the car. Can probably be done with jackstands on the front, or ramps if you want to be really tight.

You just remove the mounting bolt , pull off the sensor, disconnect the wire harness, and put the new one in, plug in the wire harness, tighten the bolt (only 6ft lbs of torque). There may be a little oil that comes out, so be ready for it. Also use a new oring (might be supplied with the new part) and then lower the car and clear your codes with the BT tool.

It's located at the rear of the block below the starter. Order a Bentley Manual from Amazon for pictures (best $85 you can spend on DIY info)

Done!

* Looks like they are charging you 2.5-3 hours of labor for a 30 minute job...typical.

binaryagent · 05-24-2010, 08:17 PM

Great info. Thanks.

Tronner · 11-07-2011, 11:44 PM

Quote:

Originally Posted by binaryagent

Great info. Thanks.

Was it as simple as reported? I think I need to replace mine as well.

ENINTY · 11-08-2011, 06:13 AM

Quote:

Originally Posted by scottp999

Crankshaft looks very easy. Because it's on the lower part of the block you need to raise the car. Can probably be done with jackstands on the front, or ramps if you want to be really tight.

You just remove the mounting bolt , pull off the sensor, disconnect the wire harness, and put the new one in, plug in the wire harness, tighten the bolt (only 6ft lbs of torque). There may be a little oil that comes out, so be ready for it. Also use a new oring (might be supplied with the new part) and then lower the car and clear your codes with the BT tool.

It's located at the rear of the block below the starter. Order a Bentley Manual from Amazon for pictures (best $85 you can spend on DIY info)

Done!

* Looks like they are charging you 2.5-3 hours of labor for a 30 minute job...typical.

I'm not sure for this job, but for most sensor replacements, BMW recommends clearing the trouble codes FIRST before removing the old sensor.

05-21-2010, 08:58 AM	#1
binaryagent New Member Drives: Black 2008 335xi Sport Join Date: Apr 2010 Location: Dallas Posts: 26 iTrader: (0)	Crankshaft Sensor Replacement Difficulty Does anyone know how difficult it is to replace the crankshaft sensor on a 335i? I apparently need a new one and the dealer is charging me over $500. I can see that the part itself is $116 so he's got to be figuring a couple of technician hours for the labor. Thanks for the help.
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05-21-2010, 10:06 AM	#2
scottp999 MFP - Twin Turbo I6 Interceptor Drives: 335i - E92 - 6MT & 4runner SR5 Join Date: Mar 2007 Location: MD Posts: 4,428 iTrader: (1) Garage List 2007 BMW 335 [4.50]	Crankshaft looks very easy. Because it's on the lower part of the block you need to raise the car. Can probably be done with jackstands on the front, or ramps if you want to be really tight. You just remove the mounting bolt , pull off the sensor, disconnect the wire harness, and put the new one in, plug in the wire harness, tighten the bolt (only 6ft lbs of torque). There may be a little oil that comes out, so be ready for it. Also use a new oring (might be supplied with the new part) and then lower the car and clear your codes with the BT tool. It's located at the rear of the block below the starter. Order a Bentley Manual from Amazon for pictures (best $85 you can spend on DIY info) Done! * Looks like they are charging you 2.5-3 hours of labor for a 30 minute job...typical. __________________ Rob Beck Turbos, PROcede Rev. 3, PPS Methanol System (DO12/Aquamist Flow Sensor), DCI, Quaife LSD, BMW Performance Suspension, Autobahn Exotics Exhaust, Helix FMIC, AR Design Downpipes, BSH Catch Can, Forge Diverter Valves, P3cars Vent Boost Gauge, Alufelgen CSL Reps, Lux 5.1 H8 Angel Eyes, HPB HID Fogs, LTBMW M3 Side Skirts, BMW M3 Rear Spoiler, BMW Front Aero Lip, BMW Pedal Kit, BMW M Shift Knob, Autotecknic Matte Black Grilles. Last edited by scottp999; 05-21-2010 at 10:12 AM.

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05-24-2010, 08:17 PM	#3
binaryagent New Member Drives: Black 2008 335xi Sport Join Date: Apr 2010 Location: Dallas Posts: 26 iTrader: (0)	Great info. Thanks.