SLK/R170 speed sensor - MBWorld.org Forums

Oct 13, 2006 | 04:24 PM

wilkoo2

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speed sensor

where is the speed sensor on the gearbox located?? roof problems and asr light on... 230 slk

Oct 13, 2006 | 09:44 PM

DickB

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Joined: Dec 2002

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From: Minnesota

'99 SLK 230

Speed sensors are on all four wheels.

Oct 14, 2006 | 12:25 AM

Buellwinkle

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Joined: Nov 2001

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From: Laguna Niguel, CA

Here's the one on the left front axle. Go to my website's resource page and for the SLK go to Component Locations and look for Vehicle Speed Sensor to see all 4.

Oct 19, 2006 | 09:33 PM

WB9AXO

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Joined: Sep 2006

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From: Indianapolis

'98 SLK230, '84 VF1100S

But where is the "Transmission Speed Sensor" (Code 109)?

Oct 20, 2006 | 07:48 PM

Buellwinkle

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Joined: Nov 2001

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From: Laguna Niguel, CA

Where is that code coming from? A P0109 is a MAP Sensor code. Are you sure it's not a P0709 code, Transmission Range Sensor? Maybe the 7 looks like a 1 to you?

Oct 21, 2006 | 11:12 PM

WB9AXO

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Joined: Sep 2006

Posts: 18

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From: Indianapolis

'98 SLK230, '84 VF1100S

I'm having intermittent transmission trouble:
http://www.benzworld.org/forums/r170...wierdness.html

In a reply, a member with a similar problem said he had a Code 109 from his transmission computer. His dealer replaced the "Transmission speed sensor".

Another member suggested checking the transmission codes:
http://www.whnet.com/4x4/dtc-722-6.txt
"Diagnostic Trouble Codes for the Mercedes-Benz 722.6 Transmission"
"109 Component Y/36n# (speed sensor 3) is sporadiacally faulty"

I'm grasping a straws before I give up and take it to the dealer.

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SLK/R170: speed sensor

SLK/R170: speed sensor