722.9 transmission Mercedes-Benz S400 sedan. The purchasers replicate: vehicle center rear head restraints cannot be dropped.
Customers replicate central manipulate the buttons on the device to carry to the rear seat headrests, car code reader
middle headrest can not go down, left and ideal can. Ordinary instances for your motor vehicle, in the event the manipulation headrest lift button, the rear seats to the left rear, ideal rear center headrest can go on, just the middle headrest cannot move button rose. Recurring screening, fault exists. Quite possibly the most likely explanation for this failure phenomenon as follows:
The intermediate headrest mechanical injury.inserted car diagnostic tool
inside the tubing leak.damage towards the pneumatic pump management module.Following the damage SAM regulate module
First, hook up the diagnostic equipment to conduct a quick OBD2 Code Scanner
exam, calculated right after see fault code, uncovered the existence of a present fault code during the still left front seat control module: abnormal lumbar aid adjustment, leak / broken cable. Then straight away check out the remaining MB star
anterior lumbar assist adjustment functionality is accessible, was found to not consider the proper front lumbar guidance feature is accessible, results not accessible.