25. May 2010 · Write a comment · Categories: Cars · Tags: , ,

I’ve started getting this problem which at first happened intermittently during a long journey (1 hour plus), and is now happening almost every journey. A beep, followed by both ABS and the DSC light being illuminated orange.

Using carsoft to interrogate the ABS/DSC unit returns the following:

5E21 – Pressure sensor 2 accident recognition.

There are 2 sensors in the master brake cylinder. The prressure sensor from BMW is nearly £150 inc VAT, but I found one on Ebay German for €14 and €12 shipping to the UK. Will fit and report back….

The ECU also reported:

4252 and 4262 which are glow plugs cylinder 5 and 6, so I will check the wiring, again.

UPDATE: I fitted the cheap sensor I found on German Ebay – lost a bit of fluid so re-bled the brakes and the light has gone out 🙂

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