Service bulletin LI83.30-P-073900
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10207201 |
| Published by NHTSA | 2022-02-04 |
| Manufacturer's number | LI83.30-P-073900 |
| Manufacturer's date | 2022-01-04 |
| NHTSA component | VISIBILITY |
NHTSA's summary
Complaint Insufficient cooling capacity and/or noises from refrigerant compressor Cause Under analysis Remedy In order to detect the fault, please perform the following test steps: 1. Connect manometer of air conditioning service unit in order to read off high pressure and low pressure 2. Connect XENTRY and bring up all climate control actual values in air conditioning menu under "actual values" 3. Set blower to speed 7 4. Set temperature on both sides (driver and front passenger) to LOW 5. Activate AC ON Result 1: Only a small pressure ratio is established (e.g high pressure 7-8 bar; low pressure 5-6 bar). Continue with step (A) Result 2: A larger pressure ratio is established (e.g high pressure 12-16 bar; low pressure 0-2 bar). Continue with step (B) (A): Check the dryer package for black oil and particles. (A.1) Black oil and particles present: Replace refrigerant compressor and valves, flush refrigerant circuit according to instructions in WIS (Refrigerant-only flushing method). Then put system into operation. If the high pressure and low pressure values are OK and the system functions as intended, the vehicle can be returned to the customer. If the pressure ratio is still not correct, continue with step (C) (A.2) No black oil or particles present: continue with step (B) (B): Disconnect vehicle-side power supply for shutoff valve Y19/3 and externally power shutoff valve Y19/3 with 12 V. With the blower setting still set to speed 7, allow the air conditioning system to run. Measure the low pressure while this occurs.
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
Glass, wipers and mirrors
| MERCEDES-BENZ GLC 350 E | 2018 |
|---|---|
| MERCEDES-BENZ GLC 350 E | 2020 to 2021 |
| MERCEDES-BENZ GLC350E | 2019 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.