Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSAUDI2005A6 3.2 TREPAIR AND DIAGNOSISMAINTENANCEPROCEDURESMAINTENANCE PROCEDURES03 MAINTENANCE, DIAGNOSISGENERAL INFORMATIONENGINE OVERVIEW
2005 Audi A6 3.2 T
Engine Overview
2005 Audi A6 3.2 TSECTION Engine Overview
| Engine code | BVJ | BXA | |||
|---|---|---|---|---|---|
| Displacement | L | 4.2 | 5.2 | ||
| Number of cylinders/valves per cylinder | 8/4 | 10/4 | |||
| Emissions category | EU IV | EU IV | |||
| Output | kW at RPM | 257/ 6800 | 320/ 6800 | ||
| Torque | Nm at RPM | 440/3500 | 540/3500 | ||
| Bore | ø mm | 84.5 | 84.5 | ||
| Stroke | mm | 92.8 | 92.8 | ||
| Compression ratio | 12.5 | 12.5 | |||
| Fuel injection/Ignition | FSI | FSI | |||
| Minimum ROZ | 98(1) | 98(1) | |||
|
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| Code letters | CAJA | CCAA | |||
|---|---|---|---|---|---|
| Displacement | liter | 2.968 | 2.968 | ||
| Output | kW at RPM | 213/5500 | 213/5500 | ||
| Torque | Nm at RPM | 420/1600 | 420/1600 | ||
| Bore | dia. mm | 84.5 | 84.5 | ||
| Stroke | mm | 88.2 | 88.2 | ||
| Compression ratio | 10.5 | 10.5 | |||
| RON | min. | 98 (1) | 98 (1) | ||
| Fuel injection and ignition system | Simos | Simos | |||
| Ignition sequence | 1-4-3-6-2-5 | 1-4-3-6-2-5 | |||
| Emissions values | EU 5 | ULEV 2 | |||
| Exhaust gas recirculation | no | no | |||
| Turbocharger | Compressor | Compressor | |||
| Knock control | 2 sensors | 2 sensors | |||
| Oxygen sensor regulation | 4 sensors | 4 sensors | |||
| Charge air cooler | yes | yes | |||
| Variable valve timing | Intake | Intake | |||
| Variable intake manifold | no | no | |||
| Secondary Air Injection System | yes | yes | |||
| Valve per cylinder | 4 | 4 | |||
|
|||||
| Code letters | BKH | |||
|---|---|---|---|---|
| Displacement | liter | 3.123 | ||
| Output | kW at RPM | 188 at 6500 | ||
| Torque | Nm at RPM | 330 at 3250 | ||
| Bore | diameter mm | 84.5 | ||
| Stroke | mm | 92.8 | ||
| Compression ratio | 12.5 | |||
| RON | min. | 95 (1) | ||
| Fuel injection and ignition system | Simos | |||
| Ignition sequence | 1-4-3-6-2-5 | |||
| Exhaust gas recirculation | no | |||
| Turbocharger, G-Charger | no | |||
| Knock control | yes | |||
| Variable valve timing | yes | |||
| Variable intake manifold | no | |||
| Secondary air injection system | no | |||
| Valves per cylinder | 4 | |||
|
||||
| Code letters | BNK | |||
|---|---|---|---|---|
| Displacement | ltr. | 4.163 | ||
| Output | kW at RPM | 246 at 6500 | ||
| Torque | Nm at RPM | 410 at 3500 | ||
| Bore | dia. mm | 84.5 | ||
| Stroke | mm | 92.8 | ||
| Compression ratio | 11.5 | |||
| RON | 98 (1) | |||
| Fuel injection and ignition system | MPI Bosch Motronic | |||
| Ignition sequence | 1-5-4-8-6-3-7-2 | |||
| Knock control | yes | |||
| Exhaust Gas Recirculation (EGR) | no | |||
| Variable intake manifold | yes | |||
| Variable valve timing | yes | |||
| Secondary air injection (AIR) | yes | |||
|
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.