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Old 09-13-2021, 08:41 AM
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BMW E53 3.0 M57N 160KW

Hi people, I recently bought an e53 so I have a couple of issues where you can help me. Overnight, my "4x4 light" came on, the day before I fell into the hole with the front right wheel, so I guess it could be a problem even though it didn't turn on immediately but only tomorrow. I connected it to the diagnostics and read the error code "5EB1 steering wheel angle sensor". I calibrated the steering wheel angle via diagnostics and the error was extinguished but again after 20 minutes of driving it appeared under the code "5EB0".Through diagnostics, I monitored the live parameters and all the wheels show the same speed. The degrees of the steering wheel angle bother me a bit, when I turn the steering wheel to the right it shows 630 degrees and to the left it can only be 600 degrees so I don't know if it's okay or is it a problem? Thanks in advance
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Old 09-13-2021, 09:15 AM
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You can sometimes clean the SAS wiper by sweeping full lock a few times (for sake of your tires do while moving slowly or on sand).

Pull up the real-time angle and observe also you can actually calibrate where is zero it may resolve your out of balance situation.

Odds are your SAS is on its last days but often they can have a little more life brought into them with a good cleaning. Also there is a kit to replace the brushes that wear out on eBay for less than half the price of a replacement SAS.

Ive had the error come up about 3 times on my '01 and recently a buddy of mine's 540. I drove about a block at a walking pace steering lock to lock to scrub the SAS and the error stayed off for a week now but we know the SAS is not long for this world.
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Old 09-13-2021, 11:10 AM
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can you send me a link from the brushes because i can't find them?

should they be able to roll the same on both sides (now in one 630 degrees in the other 600)?


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Old 09-13-2021, 11:52 AM
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https://www.ebay.com/itm/Steering-An...-127632-2357-0

One example.

You can find just the brushes for as little as $8.

–awr–
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Old 09-13-2021, 12:05 PM
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Thanks. Are the brushes the only stooze to go in that sensor or is there something else?
And could my fall with the right dot into the hole have caused something to move into the dot so that the light came on or was it just a coincidence that the light came on tomorrow


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Old 09-13-2021, 12:24 PM
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BMW E53 3.0 M57N 160KW

The logical connection between the big hole would be a substantial g-force shock to the SAS that was near end of life.

The higher end brush kits include a 3d printed brush holder but $90 is steep.

Also the knock off sensors are about $75-100 and it's not a mission critical part so it falls in the could use non OEM parts category
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Last edited by andrewwynn; 09-13-2021 at 12:34 PM.
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Old 09-13-2021, 02:02 PM
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I will try to do the calibration as you wrote me, so if the problem happens again, I will order brushes. Another problem I have had since I bought it is that the air conditioning compressor and fan will not start breathing when I turn on the A / C button. the car must be at operating temperature (90 degrees) and I have to give a little more gas once (over 3000 rpm) and then the compressor and fan turn on and everything still works normally


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Old 09-13-2021, 04:29 PM
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Look into the aux fan function regarding the ac.
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Old 09-13-2021, 04:33 PM
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The aux fan starts normally when the engine is at operating temperature and I squeeze the throttle over 3000 rpm once. I still tried to unplug the "pressure switch presostat" and test the aux fan and it starts working at top speed so I think it's correct?


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Old 09-13-2021, 04:43 PM
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That's a gift text of the fan.

Can you confirm when the AC clutch kicks on either from visual/sound feedback under the hood or combined with scanner that shows it engage.

My bet is the clutch engages but the variable compression is causing the problem.
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