AXE engine — VW 2.5 TDI (2.5L)
2.5L · 174 hp
Engine overview
Vehicles with this engine
Torque figures by job
From the step-by-step procedures for this engine — each figure sits in the step that uses it.
- 40 Nm (30 lb-ft) — Remove outer bearing cap (A)
- 70 Nm (52 lb-ft) — Locate clamping tool T10199/1 as shown and tighten clamping bolts to
- 80 Nm (59 lb-ft) — Fit torque wrenchV
- 50 Nm (37 lb-ft) — Maintain specified force and tighten camshaft sprocket securing bolt (A) to torque of
- 40 Nm (30 lb-ft) — Tighten bolts of clamping device T10199 to
- 40 Nm (30 lb-ft) — Locate engine support T10224 on cylinder block and tighten securing bolts (A) to
- 40 Nm (30 lb-ft) — Fit lifting eye2024A/2 to cylinder block and tighten to
- 40 Nm (30 lb-ft) — Fit engine support T10220 as shown and tighten to
- 40 Nm (30 lb-ft) — Fit engine support T10342 as shown and tighten to
- 30 Nm (22 lb-ft) — Fit new bolts and tighten to
- 30 Nm (22 lb-ft) — Remove drive plate again and place shim between crankshaft and drive plate
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | AXE |
| Capacity | 2461 cc |
| Valves per cylinder | 2 |
| Idle speed | 750 - 900 rpm |
| Normal | 25 - 31 bar |
| Minimum | 19 bar |
| Differential limit between cylinders | < 5 bar |
| Oil pressure | 2.0 / 2000 <7.0 / >2000 bar/rpm |
Engine (diesel)
| System (make and type) | Bosch EDC 16 |
| Unit injector system | PDE-1 |
| Pressure | > 7.5 / 1500 bar/rpm |
| Number of cylinders | 5 |
| Injector firing order | 1-2-4-5-3 |
| Oil temperature during test | 80 °C |
| Max. no-load governed speed | 4800 - 5200 rpm |
| Exhaust gas analysis | < 1.5 m-1 |
| Exhaust gas analysis test method/probe (Germany only) | B/1 |
| Test time | 0.5 s |
Cooling system
| Cap pressure | 1.4 - 1.6 bar |
| Thermostat opens at | 80 °C |
| Thermostat fully open at | 105 °C |
Capacities
| Engine sump, incl. filter | 7.4 l |
| Manual transmission | 0A5 |
| Gearbox refill | 2.7 l |
| Automatic transmission | 09K |
| Initial filling | 7.0 l |
| Differential, 4WD rear | 1.2 l |
| Haldex coupling | 1.0 l |
| Cooling system | 7.1 l |
| Air-conditioner refrigerant | 650 ± 50 (-> 2010) 525 ± 25 (2010 ->) g |
| Air-conditioner refrigerant | 950 ± 50 (-> 2010) 825 ± 25 (2010 ->) g |
| Air-conditioner compressor oil | 140 ± 15/140 ± 10 ml |
| Air-conditioner compressor oil | 240 ± 10 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 60 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Cylinder head bolts — Stage 4 | 90 ° |
| Cylinder head bolts — Stage 5 | 90 ° |
| Cylinder head bolts — Stage 6 | 90 ° |
| Unit injector — Stage 1 | 12 Nm |
| Unit injector — Stage 2 | 270 ° |
| Main bearing cap | 30 Nm |
Engine codes in the same family
The same code prefix usually means the same block with a different output, fuel or model year. Procedures are often shared — check the code on the engine plate.
Workshop procedures for this engine
Step-by-step procedures from the workshop database, carrying 42 torque figures.
- Removing and installing camshaft – Audi A6/A7 C7 · 15 torque figures
- Removing and installing turbocharger – Audi A8 D4 · 10 torque figures
- Removing and installing camshaft drive gear – Audi 2.5 TDI · 5 torque figures
- Removing and installing oil filter housing – Audi A8 D3
- VAG 2.5 TDi/V10 TDi Injector R&I
- Removing and installing particulate filter – Audi A3
- Checking valve timing · 2 torque figures
- Removing and installing oil sump · 2 torque figures
- Securing engine to assembly stand · 3 torque figures
- Removing and installing unit injector · 1 torque figures
- Removing and installing flywheel · 3 torque figures
- Draining and filling coolant
- Removing and installing thermostat housing – Audi TT Mk1
- Removing and installing valve stem seals
- Removing and installing engine control unit – Audi A3
- Removing and installing sealing flange on pulley end
- Removing and installing fuel tank, engine codes CAAA, CAAB, CAAC, CAAD, CAAE, CCHA, CCHB, CFCA
- Removing and installing tandem pump, engine codes AXB, AXC, BRR, BRS
- Separating plug-in connectors
- Removing and installing exhaust gas temperature sender 3G495 · 1 torque figures
- Removing and installing coolant temperature sender G62 – Audi
- Checking holding pressure, engine codes AXD, AXE, BLJ, BNZ, BPC
- Checking charge air system for leaks – Audi A4 B9
- Removing and installing engine speed sender G28
- Removing and installing tandem pump, engine codes AXD, AXE, BLJ, BNZ, BPC
Got a AXE problem? Ask for free.
Describe the symptoms — TorqFix replies with a diagnosis cited from verified workshop data.
Get free diagnosis →Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.