Mercedes-Benz AMG EQS 2022 — technical service bulletin
Bulletin LI80.20-P-075086 · NHTSA communication 10217161 · issued Jul 18, 2022
Technical service bulletin
communication type
Engine and Engine Cooling
component
2022
model years
9
vehicle entries
Official summary
Complaint The vehicle sporadically may not unlock via the radio remote control or Keyless Go. The vehicle may require multiple start attempts before starting. The faults B1A7611 and U113E87 are stored in the electronic ignition lock N73 (both faults must be present). After bus idle, the problem is no longer present. Cause Software fault in electronic ignition lock N73. Remedy Update electronic ignition lock N73 to software A2069025508.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.