mikey08

Folks,
Just wanted to ask if anyone knows where the fuse may be for the lumbar pumps etc. or are they a part of another fuse?
They are not working at all and just wanted to start diagnosis..
Thanks

konigstiger

Trunk rear fuse panel f60:

mikey08

Thanks....
Checked fuse looks good will try and replace... I do not have the diagnostics to view codes outside of an OBD... If fuse is good I assume its the pump...
Could it also maybe be a disconnection of the pump under the seat? Have to check that as well.
Mike

Jaybird123

Mikey,

Did you get yours resolved? I don’t feel any change in lumbar on my seats in my ‘14 c207 upon moving all of the switches...have not checked fuse yet but will do so in the morning...

mikey08

I have had no luck.. I checked the fuse and it looks ok, I may just replace it just to be sure. But nothing else I have done thus far.

Mr. Toad

When you roll the thumbwheels on the control pod, do you hear anything? If the pumps are operating, you will definitely hear them. If you get silence, then they're not working.

Jaybird123

No noises on mine upon adjustment. Still need to check fuse. Question...is it one pump per seat? Any ideas on cost and difficulty to replace?

Mr. Toad

I'm sorry that I don't have answers to your questions; fortunately, I've not had to disassemble mine as of yet. But be assured that if/when the bolster controls work, you will definitely hear them.

mikey08

i am going to look under the seats to see if anything is disconnected. I do not hear anything at all no pump etc. And I do not hear either one.
I am going to get a fuse this week and try that first. yes I am hearing one fuse is for both seats.

nota_amg

If you have codes in the module for a leak(which you probably WON'T hear), the pump will not even try to turn on. Check the codes...
your car is almost 10yo...the bladders are rubber or some kind of soft plastic, they do get cracks and tiny holes in them with time and will need to be replaced

mikey08

Thanks so if there are codes the pump will not even work. Did not know that.. Next time I am at the dealer I will ask to check the codes... Thanks

nota_amg

Save yourself some time and money and get one of these scanners.


You can check and delete codes in all modules unlike most generic scanners.