My 2001 E420 master power door and trunk actuator (located under the rear seat) keeps cycling. I heard it and disconnected the #5 fuse to stop it. Where do I start to troubleshoot the problem. Is it one of the door or trunk servo assemblies?Thank you for any tips and assistance.Ken Benoit
Country: United StatesMake: Mercedes-BenzModel: E430Year: 2001
I removed the #5 fuse located in the fuse block under the rear seat. This also disconected the radio so I unpluged the 2 leads going to the assembly adjacent to the battery and reinstalled the fuse so I could listen to the radio. Do you think it could be onre of the door or the trunk actuators? If so how can I troubleshoot the individual actuators?
Thank you for your assistance.
Please send me an e-mail of a time we can chat. I've had password XXXXXXXX logging in to this system.
Michael, did you receive my reply yesterday? The unit does not keep cycling after the ignition is shut off.
My question was not only answered but my reply has been totaly ignored.
Please either refer my question to a disciplined employee or refund my $$.
I have not received any answer as yet.
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Please answer my original question.
Relist: Other.Please help me with my original stated problem. So far nothing has been done.
Sorry I was sent out of town for school with Mercedes-benz and I forgot my laptop. Sorry for the inconvenience. For some reason I didn't get an email until you relisted the question. The PSE pump for the locks on this model only continues to cycle when a leak is detected in the system. Obviously we don't have the luxury of scanning the pse system with a mercedes computer which will tell you the circuit that is leaking. This greatly narrows down the possibilities. What I found is the easiest way to check is get to the most quiet are you can find and lock the car with the windows rolled up. You will here the pump cycling when your sit in inside the car but listen near each door to see if you can here a small air leak anywhere. Usually the air line can break somewhere behind the door panel or at the door flex point. Sometimes a door lock actuator can leak too but it seems the lines break more often.
Eurotec just reminded me that if your car has orthopedic seats, a leak in one of the seat bladders or the line coming out of the floor to the seat can cause the pse pump to cycle often as well. The problem with the orthopedic seats is very common. So I would take a look under the seat or see if both seat lumbars actually work and hold pressure.
Mercedes-Benz Master Certified technician