Mercedes-Benz AMG EQE 2022–2026 — technical service bulletin

Bulletin LI83.70-P-078292 · NHTSA communication 11033926 · issued Jun 16, 2026

Technical service bulletin

communication type

Visibility/wiper

component

2022–2026

model years

vehicle entries

Official summary

Complaint Red warning message in instrument cluster: "Towing not allowed, see Operator's Manual, consult workshop without starting the engine again". Cause Missing diaphragm on high voltage PTC (interior heating) N33/14 component part results in moisture buildup in the installation space for the heater and causes an insulation fault. The entry of moisture into the high voltage PTC (interior heating) N33/14 in the high voltage wiring harness to the DC/DC converter N83/1 causes a slow-acting insulation fault. This may occur sporadically only to start with before actively developing over time. Re

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.