WenmarOpen by Wenmar Pro

Service bulletin LI20.00-P-074205

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id11005314
Published by NHTSA2024-07-30
Manufacturer's numberLI20.00-P-074205
Manufacturer's date2024-07-20
NHTSA componentENGINE

NHTSA's summary

Complaint Yellow Coolant warning comes on in cluster Fault codes below are current or stored in MED41 P0A0500- The actuation of the circulation pump for the low-temperature circuit has an open circuit. P00B700- The coolant flow is too low. P0C7300- Circulation pump 1 for the low-temperature circuit has a malfunction. Cause Air may be trapped in the coolant circuit for transmission cooler Remedy Check coolant level. -If coolant level is low, locate source of leak and correct. -If coolant level is ok, perform procedure in attached instructions to bleed the coolant circuit to transmission cooler. 1. Allow cooling system to cool to ambient temperature. 2. Fill coolant reservoir completely. 3. Slightly open coolant connection shown in attachment (red arrow) to allow air to escape. 4. Once coolant flows out, close connection and correct coolant level. 5. Clear fault codes and check for further symptoms.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Engine

Trouble codes named

P00B7, P0A05, P0C73

Vehicles listed
MERCEDES-BENZ C 3002018 to 2023
MERCEDES-BENZ E 3502020 to 2023
MERCEDES-BENZ GLC 3002019 to 2023

Listing a model year does not mean every vehicle of it is concerned: the document says which.