SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: ABC pressure sensor

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Old Dec 4, 2019 | 06:23 PM
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Tony Roy's Avatar
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ABC pressure sensor

Anyone know a source to get this pressure sensor? I got the ABC visit workshop and when I run diagnostics it points to the pressure sensor B4/5 being bad.
cannot seem to find a source online.

2004 SL500


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Old Dec 5, 2019 | 10:07 AM
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'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
Originally Posted by Tony Roy
...when I run diagnostics it points to the pressure sensor B4/5 being bad.
Star Diagnosis says to check the voltage supply to the sensor and its output signal voltage. Since a new sensor can only be had by spending c. $1000 on a complete pressure supply valve block, I would do those voltage checks.
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Old Dec 5, 2019 | 06:35 PM
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'20 X5 M50i; '17 Ram 3500; Golf Cart; Bikes; Scooters
Originally Posted by bobterry99
Star Diagnosis says to check the voltage supply to the sensor and its output signal voltage. Since a new sensor can only be had by spending c. $1000 on a complete pressure supply valve block, I would do those voltage checks.
I have to vent. This is one thing that sucks about Mercedes...You have to buy the whole assembly to get the broken part you need!
Need an upholstery clip? Have to buy the whole panel to get the clip!

Best bet, if the sensor is faulty, is to get a used part. I have a good sized bin with used parts for expected future repairs. If they don't fail, they eventually go back to eBay!
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