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80 Central Locking System

• Model W123 central locking
• 80-010 - Function description
  • Select page... A. General B. Operation C. Function D. Components - Technical data of supply pump - Distinguishing features of actuator (S47, S48, S49)
• 80-090 - Checking function of central locking system
• 80-104 - Checking electrical function of central locking system
• 80-108 - Checking pneumatic function of supply pump
• 80-112 - Checking electrical function of actuator (except vehicles w/ code 885)
• 80-116 - Checking pneumatic function of actuator
• 80-120 - Checking central locking system for leaks
  • Select page... A. Sedan up to approx 08/90 B. Station wagon 1st version up to approx 01/86 C. Station wagon 2nd version as of approx 02/86 up to 08/90 D. Coupe up to approx 08/90 E. Sedan, station wagon, coupe as of approx 09/90, cabriolet as of start of production F. Vehicles for <D> as of 03/94 and vehicles with code 885
• 80-125 - Checking pneumatic line for leaks
• 80-215 - Removing and installing actuator (S47, S48, S49)
  • Select page... A. Front doors B. Tailgate C. Trunk lid
• 80-220 - Removing and installing rear door actuator
• 80-230 - Removing and installing fuel filler flap actuator
• 80-270 - Removing and installing supply pump (M14/1)
• 80-400 - Function description of infrared remote control
  • Select page... A. General B. Operation C. Function D. Components
• 80-420 - Checking and replacing batteries for infrared transmitter key and synchronizing and desynchronizing transmitter signal
• 80-422 - Removing and installing folding key on infrared transmitter key
• 80-430 - Removing and installing driver door infrared remote control (IFZ) receiver unit (A26/1)
• 80-435 - Removing and installing trunk lid IFZ receiver unit (A26/3)
• 80-440 - Removing and installing infrared remote control unit (IFZ) (N54)
• 80-455 - Removing and installing RCL control module (N54) and IR DAS control module (N54/1)
• 80-800 - Electrical wiring diagrams
• 80-900 - Function diagrams and Programmed Repairs (troubleshooting)
  • Select page... A. LHD sedan B. RHD sedan C. LHD T-models D. RHD T-models E. LHD coupes F. RHD coupes Programmed Repair - 80-85041 Malfunction of CLS w/o lock being operated 80-85091 CLS does not operate at outside temperatures below 0 C. 80-85121 Whistling noise at fuel filler flap when locking or unlocking car 80-86041 CLS locks car by itself after ignition key withdrawn from steering lock 80-87041 Car can be locked centrally from right (RHD left) fr door w/ key in pos 1 or 2 80-87042 Key is difficult to turn when locking or unlocking tailgate (T-model) 80-87091 CLS can't be locked and unlocked from an operating point 80-87111 Pneumatic line dropped off at rear door actuator

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