YAW rate sensor location on a 2009 CLS 350 CDI C219

[jon.bleeze.3]

Where in earth is the yaw rate sensor on this car.. its driving me nuts.. I'm gonna end up taking the car to bits looking for it at this rate?.. please help..

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[umblecumbuz]

From hazy memory, it is either under the driver's seat or at the back of the boot under the carpet/trim.
Think some handbooks state 'under passenger seat' but that was written for the American market - so under driver's seat in the UK.

 

[jon.bleeze.3]

From hazy memory, it is either under the driver's seat or at the back of the boot under the carpet/trim.
Think some handbooks state 'under passenger seat' but that was written for the American market - so under driver's seat in the UK.

Great, thank you.. I've had a good look around in the boot, but nothing there apart from the battery.. next place to look then, is under the Passenger seat (drivers of its left hand drive).

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[Wighty]

Great, thank you.. I've had a good look around in the boot, but nothing there apart from the battery.. next place to look then, is under the Passenger seat (drivers of its left hand drive).

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Just out of curiosity , how does the fault show up , what code ?

 

[jon.bleeze.3]

Just out of curiosity , how does the fault show up , what code ?

I've got ome of those icarsoft MB v2.0 readers.. and this is the code it have me.. I am only assuming it's the YAW sensor that's at fault, as it seems to be a common problem..

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[Wighty]

I've got ome of those icarsoft MB v2.0 readers.. and this is the code it have me.. I am only assuming it's the YAW sensor that's at fault, as it seems to be a common problem..

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That is a historic fault , not current , have you tried deleting it and seeing if it comes back ?

 

[Oldspanners]

Where in earth is the yaw rate sensor on this car.. its driving me nuts.. I'm gonna end up taking the car to bits looking for it at this rate?.. please help..

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Is this of any help?
https://mercedes.7zap.com/en/eu/fg/car/cls-klasse/cls+350+cdi/d26/218323/fg/0/0/54/0/695/0/0/

 

[umblecumbuz]

That diag shows the sensor as under the left (passenger) seat.
When I located mine, I had to remove the seat (I actually unbolted the seat and leaned it on the rear seat without disconnecting any wires) and work through thick molded sound deadening. I cut the carpet under the seat where it didn't show to improve access.
If you need to disconnect any wires, isolate the battery first!

 

[jon.bleeze.3]

That is a historic fault , not current , have you tried deleting it and seeing if it comes back ?

Yeah I deleted it first, it stayed off, but then came back a few minutes later, and now it stays on and wont delete.. so there is a permanent fault with the yaw sensor..

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[jon.bleeze.3]

That diag shows the sensor as under the left (passenger) seat.
When I located mine, I had to remove the seat (I actually unbolted the seat and leaned it on the rear seat without disconnecting any wires) and work through thick molded sound deadening. I cut the carpet under the seat where it didn't show to improve access.
If you need to disconnect any wires, isolate the battery first!

I've heard horror stories about disconnecting the battery.. which i thought was strange as at some point, you would need to change the battery..

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