The Benz S400 seat middle with the headrest can not be dropped

A mileage of about sixty,000 km, configure the 272 motor,obd2 Android 722.9 transmission Mercedes-Benz S400 sedan. The shoppers reflect: automobile centre rear head restraints cannot be dropped.

Customers replicate central manipulate the buttons on the device to carry about the rear seat headrests, car code readermiddle headrest cannot go down, still left and ideal can. Usual situation for your motor vehicle, once the manipulation headrest elevate button, the rear seats about the left rear, appropriate rear center headrest can go on, just the middle headrest can't go button rose. Repeated testing, fault exists. Quite possibly the most probably rationale for this failure phenomenon as follows:

The intermediate headrest mechanical damage.inserted car diagnostic tool from the tubing leak.problems for the pneumatic pump regulate module.After the harm SAM manage module

First, connect the diagnostic tools to carry out a fast OBD2 Code Scanner examination, measured just after see fault code, learned the existence of the current fault code within the remaining front seat command module: abnormal lumbar aid adjustment, leak / damaged cable. Then promptly perspective the left MB star anterior lumbar assistance adjustment perform is obtainable, was observed to not look at the correct entrance lumbar guidance aspect is obtainable, final results not available.