Repair Manual MSG 90.6PG Commercial Vehicles, Omnibuses – November 2017
Material no. 1153450_c
2.3
Overview of faults
Page 2 of 11
TABLE OF CONTENTS
Fault description
Possible cause
Troubleshooting
Seat moves up too slowly.
• Air hoses are leaky.
• Air spring is untight.
Check all air hoses for air leakage
and replace a defective air hose (air
hose set), if necessary
(see Chapter 3.22).
Check the air spring (Chapter 2.4,
step no. 3.1).
Seat does not move up (seat does not
respond when pulling the lever for seat height
adjustment).
• Bowden pull wire for seat height
adjustment is not correctly adjusted.
• Bowden pull wire for seat height
adjustment is torn.
• Air leaks at the valve tappet.
• Air connections or air hoses are leaky.
Check the Bowden pull wire for seat
height adjustment and adjust it, if
necessary (see Chapter 3.8).
Replace the Bowden pull wire for
seat height adjustment
(see Chapter 3.9).
Replace the level control
(Chapter 3.38).
Check all air connections and air
hoses for air leakage and replace the
component with a defective air
connection or the defective air hose
with a new one, if necessary.
