"Circuit C30g Has a Malfunction"

May 23, 2018 | 09:04 PM

unkellsam

Thread Starter

Junior Member

Joined: Oct 2012

Posts: 18

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CLK320

"Circuit C30g Has a Malfunction"

Hello,

I have an issue with my 2011 E350 convertible where the Airscarf neck heaters on both sides don't work. The diagnostic test shows "A159 - Circuit 30g has a malfunction." Anyone know what I should check or where I can get a troubleshooting guide for this?

Sep 10, 2018 | 08:36 AM

IDENTISKINZ

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Joined: Sep 2018

Posts: 1

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2012 E220 CONVERTIBLE

Quote:

Originally Posted by unkellsam

hello , did you get to the bottom of this ? , have the same thing on mine , am thinking fuse or relay ?

Mar 7, 2020 | 05:10 AM

Dans69

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Joined: May 2019

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E350 (a207)

I have the same issue with mine. does anyone have an idea how to resolve this. it was working one day then didn't the next.

Many Thanks

Mar 7, 2020 | 05:58 AM

unkellsam

Thread Starter

Junior Member

Joined: Oct 2012

Posts: 18

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CLK320

Quote:

Originally Posted by Dans69

I have the same issue with mine. does anyone have an idea how to resolve this. it was working one day then didn't the next.

Many Thanks

From what I remember, the wires going to the fuse box in the trunk had melted and shorted the air scarf. The problem was near the fuse box. Apparently this is a fairly common design flaw as the wire gauge is not thick enough for what the airscarf requires.

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