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Discuss problems you have had or are having with your Z4
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DMC63
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Post by DMC63 » Mon Apr 16, 2018 1:16 pm

Following my inspection code alert I was driving today and the amber handbrake light came on along with the DSC amber light :cry:
I read the manual and it said 'Sell the car" Lol. Ok, not really... It says that the DSC has failed (obviously a worse case scenario). I've checked brake fluid and it's topped up to the max. (Amber handbrake light can also mean low fluid).
Anyway, I turned the car off and started it again and the warning lights have gone. Took it for a spin, a few moderate breaking moments and a sharp corner or two and still no warning lights.

Any thoughts anyone?
BMW Z4 2003 2.5i and lots of bits and pieces - 2016 - 2020 Sold

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ph001
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Post by ph001 » Mon Apr 16, 2018 2:06 pm

Typically that would be a pressure sensor on the master cylinder (there are 2 sensors). Code reader will tell you which one but I would probably change both. The chinese ones on ebay work fine.
Last edited by ph001 on Fri Apr 27, 2018 1:59 pm, edited 1 time in total.
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

2004 E46 M3 coupe manual - gone but not forgotten.

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Post by DMC63 » Mon Apr 16, 2018 2:29 pm

ph001 wrote: Mon Apr 16, 2018 2:06 pm Typically that would be a pressure sensor on the abs /dsc unit (there are 2 sensors). Code reader will tell you which one but I would probably change both. The chinese ones on ebay work fine.
Thanks Ph001. I'll look into that and get it sorted. That's a relief on both my mental health and wallet :thumbsup:
BMW Z4 2003 2.5i and lots of bits and pieces - 2016 - 2020 Sold

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Post by ph001 » Mon Apr 16, 2018 4:10 pm

Of course, you need to get the codes read to confirm.
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

2004 E46 M3 coupe manual - gone but not forgotten.

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DMC63
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Post by DMC63 » Mon Apr 16, 2018 4:57 pm

ph001 wrote: Mon Apr 16, 2018 4:10 pm Of course, you need to get the codes read to confirm.
Yep, I'll get my neighbor (AA) to check the codes for me. Thanks again.
BMW Z4 2003 2.5i and lots of bits and pieces - 2016 - 2020 Sold

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Post by DMC63 » Fri Apr 27, 2018 1:33 pm

Just got the code for the fault. Anyone have any more info on this code?
C1E21 Pressure sensor 2 Faulty
IMG_5534.JPG
IMG_5534.JPG (20.73 KiB) Viewed 950 times
BMW Z4 2003 2.5i and lots of bits and pieces - 2016 - 2020 Sold

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Post by ph001 » Fri Apr 27, 2018 2:00 pm

What more info do you need? Change the pressure sensor / s.

Ebay... https://www.ebay.co.uk/itm/GENUINE-BMW- ... 1220138731
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

2004 E46 M3 coupe manual - gone but not forgotten.

Image

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Post by DMC63 » Fri Apr 27, 2018 2:21 pm

Thanks Ph001...I just thought I'd run it by the forum to see if there were any other tips or advice. Thanks for the link :)
BMW Z4 2003 2.5i and lots of bits and pieces - 2016 - 2020 Sold

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Post by DMC63 » Fri Apr 27, 2018 2:32 pm

ph001 wrote: Fri Apr 27, 2018 2:00 pm What more info do you need? Change the pressure sensor / s.

Ebay... https://www.ebay.co.uk/itm/GENUINE-BMW- ... 1220138731
Are the sensors 1 and 2 the same? or is there a different sensor for each? (I know, probably another stupid question :oops: )
BMW Z4 2003 2.5i and lots of bits and pieces - 2016 - 2020 Sold

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Post by ph001 » Fri Apr 27, 2018 4:02 pm

Same.
2007 E85 Z4 3.0Si manual :driving:
19" CSL's | Eibach Springs | Aeroskirts | Z4M front bumper | Clear brake light | ZHP | RCH+| Stubby

2004 E46 M3 coupe manual - gone but not forgotten.

Image

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