Remove Fuel Injection Nozzles - AR07.03-P-0004-03MM

WARNING: This page is about a different car, the 2023 Mercedes-Benz GLC300, 2022 Mercedes-Benz GLC300, 2021 Mercedes-Benz GLC300, 2020 Mercedes-Benz GLC350e, and 2020 Mercedes-Benz GLC300. However, it is still accessible from the selected car via links, so may be relevant.

Engine 133, 139, 152.9, 157, 176, 177, 178, 256, 260, 264, 270, 274, 276, 278

Fig 1: Identifying Puller (278 589 00 33 00)

Courtesy of MERCEDES-BENZ USA

Do not use sharp-edged tools.

Otherwise the fuel injector (1) may be damaged and leaks and malfunctions may occur.

Attach extractor (01) to fuel injector (1).
Press extractor (01) up to end stop in retaining guide (2) of fuel injector (1).
Turn fuel injector (1) with extractor (01) to and fro (arrows).
Turning the fuel injector (1) back and forth causes it to loosen from the cylinder head.
Remove fuel injector (1) with extractor (01).
Do not pull out fuel injector (1) with one sharp motion.

Otherwise the fuel injector (1) may be damaged.

Courtesy of MERCEDES-BENZ USA