Notes on performing repair, body work and welding on vehicles with airbags and ETR units - AH91.00-P-0002-01SM

Model 450.3/4, 451.3/4 

• Before and after a body repair, the fault memory must be read out and existing faults documented.
• Before carrying out any work on the airbag and emergency tensioning retractor units that requires electric circuit intervention (e.g. dismantling), the ignition key must always be removed and the ground line of the battery must be disconnected (wait approx. 60 s for processor power-down).
• Before carrying out any welding work, remove ignition key, disconnect/insulate ground line of battery and detach connector from restraint system control unit.
• No particular safety precautions are necessary before carrying out painting work with subsequent force drying. The airbag and ETR units can withstand temperatures of up to a maximum of 100°C without damage.
• Do not bring airbag and emergency belt tensioner units into contact with grease, oil or cleaning agents.
• Airbag or ETR units which have fallen from a height of more than 0.5 m must be replaced and must not be installed in a vehicle under any circumstances
• In order to be able to install emergency tensioning retractor units free from damage and dirt, they have been provided with a PVC film protective sleeve. This protective device must be removed after assembly. Do not use sharp-edged tools when removing PVC film protective sleeve to avoid damaging the belt.
• If a considerable amount of deformation has occurred, check the setting of the lateral acceleration sensor on the underside of the vehicle.
• After completing work on the airbag and ETR units, the fault memory must be read out.