Audi 2.0 TDI Glow Plug N 105 798 02 – 4.4V
N 105 798 02 is a 4.4V long-reach metal glow plug for selected Audi 2.0 TDI engines. Wellgine application data links it to AZV, BKD, BLB and BNA engine codes in selected Audi A3 8P, A4 B7 and A6 C6 applications.
Drawing-confirmed identification:
- 117.5 mm overall length
- 29.5 mm installation depth
- M8 × 1 mounting thread
- 8 mm hex and Ø4 mm pin terminal
- Plug voltage is 4.4V
- vehicle system voltage is 12V.
For OEM, wholesale or private-label enquiries, send the OE number, engine code, vehicle production date and an original sample or dimensional record where available.
A 4.4V Long-Reach Glow Plug for Audi 2.0 TDI
OE reference N10579802 identifies a slim, long-reach metal glow plug used in selected Audi 2.0 TDI applications. Its defining features are not only the M8 × 1 thread, but the complete combination of 4.4V plug voltage, 117.5 mm overall length, 29.5 mm installation depth, 8 mm hex and Ø4 mm pin terminal.
This combination matters in professional sourcing. A visually similar M8 glow plug may differ in voltage, reach or terminal design, so matching only the thread or vehicle model can lead to the wrong product being approved.
Wellgine supplies this product for OEM, aftermarket, wholesale and private-label programmes. Application approval should be based on the OE reference, engine code, production period and drawing dimensions together.
Why N 105 798 02 Requires Precise Identification
| Identification point | What must be confirmed | Why it matters |
|---|---|---|
| Electrical specification | P.V. 4.4V; B.V. 12V | The plug rating and the vehicle system rating are different references. A plug with the wrong voltage should not be accepted simply because it fits physically. |
| Long-reach geometry | 117.5 mm overall length and 29.5 mm installation depth | The long, narrow body and heating-end reach must match the approved sample or drawing. |
| Mounting interface | M8 × 1 thread and 8 mm hex | These dimensions identify the cylinder-head mounting and tool interface, but they are not sufficient on their own. |
| Electrical connection | Ø4 mm pin terminal | The terminal form must match the vehicle connection and the buyer’s approved reference. |
| Application identity | OE number, engine code and production date | The description “Audi 2.0 TDI” covers several engine families and does not identify one glow plug by itself. |
Drawing-Confirmed Product Data
| Product feature | Confirmed value |
|---|---|
| OE reference | N10579802 |
| Product construction | Metal diesel glow plug |
| Plug voltage (P.V.) | 4.4V |
| Vehicle system voltage (B.V.) | 12V |
| Overall length | 117.5 mm |
| Installation depth | 29.5 mm |
| Mounting thread | M8 × 1 |
| Hex | 8 mm |
| Terminal | Ø4 mm pin |
| Confirmed quantity in the listed Audi records | 4 glow plugs per engine |
P.V. is the voltage rating of the glow plug. B.V. is the vehicle electrical system voltage. For this product, P.V. is 4.4V and B.V. is 12V. These values should be recorded separately in catalogues, quotations and inspection documents.
Audi 2.0 TDI Application Map
Wellgine application records connect N10579802 with the following Audi 2.0 TDI engine and platform combinations:
| Audi application | Platform | Engine codes | Production reference | Listed quantity |
|---|---|---|---|---|
| Audi A3 2.0 TDI | 8P | AZV, BKD | 05/2003–03/2013 | 4 |
| Audi A3 2.0 TDI quattro | 8P | AZV, BKD | 05/2003–03/2013 | 4 |
| Audi A4 2.0 TDI | 8E / B7 | BLB, BNA | 11/2004–06/2008 | 4 |
| Audi A6 2.0 TDI | 4F / C6 | BLB, BNA | 07/2004–08/2011 | 4 |
The table is an application-matching reference, not a universal statement for every vehicle carrying the same model name or engine displacement. Before approval, confirm the complete engine code, production date and original glow plug.
Four Procurement Errors This Page Helps Prevent
Confusing 4.4V P.V. with a 12V vehicle system
The plug is rated at 4.4V while the vehicle electrical system is 12V. These two values must not be merged into one catalogue field or treated as a contradiction.
Approving a glow plug by M8 thread alone
M8 × 1 is only one identification point. The 117.5 mm overall length, 29.5 mm installation depth, 8 mm hex, Ø4 mm terminal and 4.4V rating must also match.
Using “Audi 2.0 TDI” as the only fitment description
The same vehicle family may use different glow plugs across engine codes and production periods. AZV, BKD, BLB and BNA are the engine codes confirmed in the current Wellgine application records for this product.
Skipping sample or drawing comparison
For a new purchasing programme, an original sample, approved drawing or dimensional report provides a stronger confirmation basis than a model name alone.
Incoming Inspection Reference for Distributors
For sample approval or batch inspection, the following sequence provides a practical check:
- Confirm the purchasing document and product label show OE reference N 105 798 02.
- Record the electrical values separately as P.V. 4.4V and B.V. 12V.
- Measure the overall length against the 117.5 mm drawing value.
- Check the 29.5 mm installation depth at the heating end.
- Verify the M8 × 1 thread and 8 mm hex.
- Confirm the terminal is a Ø4 mm pin type.
- Compare the product with the buyer’s approved sample or application record before releasing the batch.
This dimensional check is intended for product identification and procurement control. Installation procedures and tightening requirements should follow the applicable vehicle service information.
Built for Focused Audi and VAG Product Ranges
This product is particularly relevant to buyers maintaining a structured catalogue for mid-2000s Audi 2.0 TDI applications rather than a broad, undifferentiated “diesel glow plug” range.
Wellgine can support:
- distributors adding N 105 798 02 to an Audi or VAG glow plug range;
- importers comparing an existing sample with a drawing-based specification;
- wholesalers consolidating AZV, BKD, BLB and BNA application demand;
- private-label buyers preparing their own packaging and catalogue data;
- OEM purchasing teams requiring OE, application and dimensional confirmation before quotation.
The product should be presented in catalogues with its voltage and dimensional identity clearly separated from general vehicle-system information.
Quotation and Sample Review
For a precise quotation, send:
- OE reference N10579802;
- target Audi model and platform;
- engine code;
- vehicle production month and year;
- required quantity and destination market;
- an original sample, product photograph or dimensional report where available;
- packaging, label and private-label requirements;
- sample approval or batch inspection requirements.
Send the OE reference, engine code and required quantity to Wellgine for application review and a B2B quotation.
Questions Buyers Commonly Need Answered
What makes N 105 798 02 different from a generic M8 glow plug?
Its identity comes from the complete specification: 4.4V P.V., 117.5 mm overall length, 29.5 mm installation depth, M8 × 1 thread, 8 mm hex and Ø4 mm pin terminal. Matching the thread alone is not sufficient.
Which engine codes are covered by the current Audi application data?
The confirmed Wellgine records list AZV and BKD for selected Audi A3 8P applications, and BLB and BNA for selected Audi A4 B7 and Audi A6 C6 applications.
Why are both 4.4V and 12V shown?
4.4V is the glow plug voltage, recorded as P.V. 12V is the vehicle electrical system voltage, recorded as B.V. They refer to different specifications and should remain separate in product data.
What is the most useful evidence for a first order?
The strongest confirmation package is the OE number, engine code, production date and either an original sample or a dimensional report compared with the Wellgine drawing.