Application:

The assembly tool T40428 can be used to easily remove and reinstall glow plugs even in places that are difficult to access.
For ceramic glow plugs, an assembly tool is absolutely required as these must be inserted carefully into the glow plug shaft in order not to knock against and damage the sensitive ceramic glow plug tip. Failure to do so may result in engine damage.

Reference:

Audi A4 2016>
Repairing 6-cyl. TDI common rail engine (EA 897 Gen I)
Repair group 28

Warranty:

24 Months

Manufacturer:

Bosch