2.10.2. Glow plugs

On Audi A4 with 4-tsit. 4V various glow plugs are established by the TDI engine of 2,0 l.

Code of the BLB, BNA engine
Only metal glow plugs are established.
Alphabetic references of the BRD, BRE, BRF, BVA, BVF, BVG engine.
Only ceramic NGK of a glow plug are established.

On ceramic glow plugs of NGK as the color coding "there is a white, perhaps painted by silvery paint, sealing ring".

Rules of the address with ceramic glow plugs
For ceramic candles of an incandescence in addition follows follow the following rules.
Ceramic glow plugs because of the special characteristics of material are very sensitive and demand the special address at installation and dismantle. It is necessary to follow the established rules surely.
It is allowed use only the resolved ceramic glow plugs.
Transportation and storage is allowed to be carried out only in original shipping containers or in separate packing in a film with airbags.
Ceramic glow plugs should be taken out from packing just before installation.
Ceramic glow plugs are sensitive to blows and bending. Therefore the fallen ceramic glow plugs (even from the small height, a comment of 2 cm) cannot be used more even if damages (for example, hair cracks) are not visible.
If there are doubts in a faultless condition of ceramic glow plugs, then they should be replaced always.
Always leads damages or a break of a pin of a ceramic glow plug to damage of the engine.
At a break of a pin it is necessary to remove all remains of a break from the combustion chamber before the following start of the engine as differently inevitably there will be a damage of the engine (teases of the piston).
For check of pressure of compression it is necessary to choose the Systems with Self-diagnostics function in the Conducted Search of Malfunctions menu.
When checking a compression ceramic glow plugs should not be taken.