91 Seats and Restraints

Maintenance Jobs - 1986 through 1993

• 9150 - Inspecting safety belts for damage
• 9151 - Backrest lock - check operation

Maintenance Jobs - 1994 through 1995

• 9150 - Inspecting safety belts for damage
• 9151 - Backrest lock - check operation

Service Information

• AF91.10-U-2101A - Front seat cushion has insufficient side support
• AF91.12-U-3000A - Rear seat cushion too soft or bottoms out
• Service Intro - Model Year 1992, Model 124 Sportline (USA), Introduction into Service
• Service Intro - Model Year 1992, 400E/500E, Introduction into Service

Additional Information

• W124 Front Seat Removal - Neil Villacortabuer

---

Head restraints

• 91-060 - Removal and installation of adjusting rail for head restraint
• 91-070 - Removal and installation of guide rail for head restraint

Driver's seat

• 91-100 - Removal and installation of driver's seat
• 91-110 - Removal and installation of front passenger's seat
• 91-112 - Layout and operation of backrest lock (coupe)
• 91-115 - Removal and installation vacuum element of front seats (coupe)
• 91-119 - Removal and installation vacuum switch of driver's seat (coupe)
• 91-125 - Removal and installation of gear unit for backrest adjustment
• 91-145 - Removal and installation of driver's seat height adjustment
• 91-162 - Function diagram of backrest lock (coupe)
• 91-165 - Eliminating noises from front seats
• 91-168 - Removal and installation of armrest with lifting mechanism on driver's seat (coupe)

Rear seat

• 91-170 - Removal and installation of rear seat and rear seat backrest
• 91-173 - Modification of rear seat backrest mounting (coupe)
• 91-175 - Removal and installation of folding armrest for rear seat (coupe)

Seat coverings

• 91-180 - Removal and installation of driver's seat cushion cover
• 91-182 - Removal and installation of driver's backrest cover
• 91-190 - Removal and installation of tensioning member on front seat backrest

Seat belts, tensioners and extenders

• 91-502 - Removal and installation of front belt tensioner
• 91-508 - Removal and installation of complete seat belt extender
• 91-509 - Removal and installation of seat belt extender rack
• 91-510 - Removal and installation of rear seat belts
• 91-515 - Removal and installation of seat belt extender microswitch complete with lead
• 91-520 - Removal and installation of seat belt extender control unit

Airbag, belt tensioner

• 91-600 - Description of operation of airbag with belt tensioner
  • Select page... A. General B. Driver air bag unit C. Passenger air bag unit D. Belt tensioner unit E. Control unit F. Reserve power source (up to 09/87) G. Warning lamp H. Voltage transformer (up to 09/87) I. Energy-absorbing panels under dashboard (USA only)
• 91-610 - Safety regulations for airbags and belt tensioners
  • Select page... A. General B. Dispatch of airbag and belt tensioner unit C. Storage of airbag and belt tensioner units D. Assembly and disassembly of airbag and belt tensioner units E. Scrapping of airbag and belt tensioner units F. Disposal of mercury-containing control units G. Important instructions to be observed during repair work and following accidents
• 91-622 - Removing and installing control unit for airbag and belt tensioners
  • Select page... A. Up to 08/87 B. As of 09/87
• 91-625 - Renewal regulations for seat belts
• 91-635 - Removing and installing seat belt with belt tensioner
• 91-638 - Removing and installing belt buckle
• 91-640 - Removing and installing reserve power source for airbag and belt tensioner (up to 09/87)
• 91-650 - Removing and installing voltage transformer for airbag and belt tensioner (up to 09/87)
• 91-660 - Removing and installing airbag unit in steering wheel
• 91-680 - Removing and installing passenger airbag unit
• 91-700 - Test program for airbag and belt tensioner (up to 09/87) and airbag 1/3
• 91-710 - Test program for airbag and belt tensioner (as of 09/87)
• 91-750 - Test program for belt tensioner (without airbag)

Roll-over bar

• 91-800 - Function description of roll-over bar
  • Select page... A. Roll-over bar B. Control unit (N53) C. Roll-over bar triggering solenoid (Y57/1) D. Roll-over bar convenience switch (S83), (S83/4) E. Roll-over bar indicator lamp (E30) F. Rear axle switches for roll-over bar (S83/2, S83/3) G. Supporting and actuating elements H. Hydraulic unit I. Valve block, roll-over bar (Y57) J. Information from roll-over bar control unit to soft top control unit K. Function of crash actuation and retraction following crash actuation
• 91-820 - Safety regulations for roll-over bars
• 91-830 - Testing function of roll-over bar
• 91-840 - Removal and installation of roll-over bar control unit
• 91-845 - Function test of rear axle switches for roll-over bar (S83/2, /3)
• 91-860 - Removal and installation of left and right rear axle switches
• 91-900 - Removal and installation of roll-over bar
•  
• Programmed repairs - Seats, bunks, retaining systems
  • Select page... 91-86121 Cover of rear seat cushion in range of seat corrugated (fabric) 91-86122 Clattering noises on rough road with rear seats not taken 91-87011 Driver's seat cushion too soft or worn out 91-87071 Noises at driver's and front passenger seats 91-87111 Driver's seat cushion worn out (production period 1/87 to 8/87) 91-88011 Noises from mechanical seat adjusting device when driving around bends 91-88012 Head restraint can no longer be removed following wrong installation 91-88021 Noises from seat cushion when driving around bends 91-89051 a) Driver's seat cushion floats or lifts when driving around bends 91-89051 b) Driver's seat cushion cover damaged on side near tilt adjustment mechanism 91-89071 Noises on tilt adjustment mechanism 91-89072 Scratching noise in upper backrest when depressed 91-89073 Noises from manual seat height adjusting device 91-89074 Noises from seat adjuster when driving around bends 90-90041 Welt of driver's seat noisy (fabric production 01/02/90) 91-88042 Belt positioner fails to extend or to return 91-89075 Pulse display 10 without airbag release 91-89111 Clattering noises on front passenger airbag unit 91-83041 Airbag unit cannot be screwed off
• Technical modifications - Airbag and belt tensioner

---