{"nhtsa_id":11026828,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2025-12-24","date":"2025-12-20","document_id":"LI20.20-P-079938","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"Complaint Warning message \"Performance limited\" in the instrument cluster and vehicle has lack of acceleration. Cause - A too high Temp difference between M43/1 Pump Temp Sensor and Temp Sensor in Power Electronics. DTC P0A9300 is detected by too low flow rate in the low temperature circuit of the power electronics N147. - Possible Restriction in the low Temp coolant circuit NT1. The difference between the temperature sensors in the pump from low temperature circuit and in the power electronics are to big. If the difference is too big, DTC P0A9300 will be set in the power electronics. Remedy If DTC P0A9300 is present in N147: • Follow the guided test step for DTC P0A9300 in power electronics N147 • Ensure that all HV safety guidelines are being followed as per WIS and that the vehicle is powered down. • Replace Cooler low temperature LT1 (from cooling circuit of power electronics) • Replace oil cooler (which is mounted on the drive unit) • Replace the complete cooling fluid (G40) from all cooling circuits If DTC P0A9300 is not present in N147: • upload HV CUL (N147 CUL) to paperless • Open TIPS case and attach QT, HV CUL to the case","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026828-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2025/MC-11026828-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11026828","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":["P0A93"],"topics":[],"vehicles":[{"make":"MERCEDES-BENZ","model":"GLC 350 E 4MATIC","year_from":2025,"year_to":2026,"match":null,"vehicle_ids":[]},{"make":"MERCEDES-BENZ","model":"GLE 450E 4MATIC","year_from":2024,"year_to":2025,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}