Repair Manual MSG 90.6PG Commercial Vehicles, Omnibuses – November 2017
Material no. 1153450_c
2
Diagnosis
Page 2 of 2
END
TABLE OF CONTENTS
2.3 Overview of faults (page 1-11)
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Seat cushion heater or backrest heater does not operate (page 7)
•
Seat has too much clearance in the transverse direction (seat wobbles) (page 7)
•
Seat suspension squeaks (page 8)
•
Seat does not respond when pressing the button for the swivel (if fitted) (page 9)
•
Vertical shock absorption does not become harder or softer when the lever for vertical shock absorber adjustment is
turned forwards or backwards (page 9)
•
Backrest does not fold forwards automatically after being unlocked (page 10)
•
Backrest cannot be unlocked (page 10)
•
Seat fore/aft adjustment does not operate after pulling or pushing the lever for the seat fore/aft adjustment
(page 10-11)
•
Backrest too much play or Backrest rattles in unloaded condition (page 11)
2.4 Fault diagnosis (page 1-16)
1 Inspection of the leveling valve (page 1-4)
2 Inspection of the level control (page 5-7)
3 Inspection of the air spring (page 8)
4 Inspection of the seat heater (Actros, Atego, Axor, bus seat) (page 9-11)
5 Inspection of the belt tensioner cable (page 12)
6 Inspection of the cable of the belt buckle contact (page 13-14)
7 Inspection of the belt buckle and the belt buckle cable (page 15)
8 Inspection of the cable for the electro-pneumatic gearshift (page 16)