OVERVIEW
Genuine VW/Audi air-conditioning line bolt, part number N-104-144-02. This original M8 x 28 fastener is cataloged for specified A/C hose and line attachments. The application table identifies confirmed factory HVAC hardware profiles using the exact original part number.
Technical details
- Original part number: N-104-144-02 / N10414402.
- Published nominal size: M8 x 28.
- Socket-head fastener with a collar at the head contact surface.
- Earlier cataloged number: N10414401.
- One bolt supplied. Refrigerant, hose, compressor, seals and other hardware are separate.
The mounting fastener retains the specified hose or line connection in its designed arrangement. Correct hardware and component seating are necessary for the connection to remain properly assembled.
The bolt is not the refrigerant seal. A leak can involve a separate sealing ring, a damaged fitting or a defective hose. Match the actual bolt number and connection before ordering; another M8 bolt can differ in length or head form.
Common reasons to replace
Replace a missing bolt, damaged threads, stripped drive recess, visible deformation or corrosion affecting the fastener. Renew hardware whenever the applicable repair procedure requires replacement after removal.
A/C line or compressor service can expose previously damaged bolts and mating mounting threads. Inspect the connection and surrounding components before assembling new hardware.
Poor cooling or refrigerant leakage requires diagnosis of the complete system. A new mounting bolt does not repair a cracked line, failed compressor, damaged fitting or deteriorated seal. Do not overtighten the fastener to compensate for a leak.
Installation and service notes
Follow the factory procedure for the actual air-conditioning connection. If service requires opening the refrigerant circuit, use the prescribed recovery and service equipment before disconnecting the line.
On a hybrid or electric vehicle, follow the applicable electrical isolation and component handling instructions before working around an electrically driven compressor. Use the correct refrigerant and lubricant specified for the actual vehicle during system service.
Identify the exact mounting position, align the hose or line without strain and replace separate seals when required. Start the correct bolt by hand into undamaged mating threads.
Use the correct driver and follow the prescribed tightening specification for the connection. Do not infer torque from the M8 x 28 size or transfer a value from another hose, compressor or chassis.
If the bolt does not seat normally, inspect the fitting alignment, seal placement and mating threads before proceeding. Complete the specified leak and functional checks after the repair.
This listing supplies one original mounting bolt. It does not include refrigerant, compressor oil, a replacement hose or a complete A/C service kit.
Fitment
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A3 Sportback e-tron | 2017 | 1.4L turbocharged gasoline / plug-in hybrid | 8V hatchback, front-wheel drive; Original A/C hose and compressor arrangement | Specified air-conditioning hose/line mounting bolt in the cataloged assembly. Match N10414402 at the actual connection; seals, hoses and other bolts are separate. |
| Audi e-tron quattro | 2022 | Battery-electric | SUV, quattro; Original A/C hose and compressor arrangement | Specified air-conditioning hose/line mounting bolt in the cataloged assembly. Match N10414402 at the actual connection; seals, hoses and other bolts are separate. |
| Audi e-tron quattro | 2023 | Battery-electric | Chronos Edition SUV, quattro; Original A/C hose and compressor arrangement | Specified air-conditioning hose/line mounting bolt in the cataloged assembly. Match N10414402 at the actual connection; seals, hoses and other bolts are separate. |
| Audi e-tron S | 2022 | Battery-electric | SUV, quattro; Original A/C hose and compressor arrangement | Specified air-conditioning hose/line mounting bolt in the cataloged assembly. Match N10414402 at the actual connection; seals, hoses and other bolts are separate. |
| Audi e-tron S Sportback | 2022 | Battery-electric | Sportback SUV, quattro; Original A/C hose and compressor arrangement | Specified air-conditioning hose/line mounting bolt in the cataloged assembly. Match N10414402 at the actual connection; seals, hoses and other bolts are separate. |
| Audi A6 allroad | 2022 | 3.0L turbocharged gasoline V6 / mild hybrid | C8 wagon, quattro; Original A/C hose and compressor arrangement | Specified air-conditioning hose/line mounting bolt in the cataloged assembly. Match N10414402 at the actual connection; seals, hoses and other bolts are separate. |
| Audi e-tron S Sportback | 2023 | Battery-electric | Sportback SUV, Premium Plus, quattro; Original A/C hose and compressor arrangement | Specified compressor-assembly hose mounting bolt. Match N10414402 at the actual attachment; this does not establish every compressor mounting bolt. Hoses, seals and other hardware are separate. |
| Audi e-tron S | 2023 | Battery-electric | SUV, Prestige, quattro; Original A/C hose and compressor arrangement | Specified compressor-assembly hose mounting bolt. Match N10414402 at the actual attachment; this does not establish every compressor mounting bolt. Hoses, seals and other hardware are separate. |
| Audi e-tron Sportback | 2023 | Battery-electric | Sportback SUV, Premium, quattro; Original A/C hose and compressor arrangement | Specified compressor-assembly hose mounting bolt. Match N10414402 at the actual attachment; this does not establish every compressor mounting bolt. Hoses, seals and other hardware are separate. |
Confirm the original bolt number and exact air-conditioning attachment before ordering. One bolt is supplied.