Specifications
| Engine type | Diesel, V-shaped, 4-valve, turbocharged |
| Number of cylinders: 3.0 TDI engines | 6 |
| 4.2 TDI engines | 8 |
| For the cylinder firing order, see. | Chapter 5 |
| Cylinder diameter // piston stroke, mm: 3.0 TDI engines | 83.0 // 91.4 |
| 4.2 TDI engines | 83.0 // 95.5 |
| Cylinder capacity, cm³: 3.0 TDI engines | 2967 |
| 4.2 TDI engines | 4134 |
| Compression pressure, bar: New engine | 28-33 |
| Minimum acceptable | 21 |
| Maximum permissible variation in compression pressure in different cylinders, bar | 5 |
| Engine oil pressure at 80°C, bar: At idle | not less than 0.8 |
| At 2000 rpm | not less than 1.5 |
| Response pressure of the low pressure engine oil valve "F378" for 3.0 TDI engines, bar: Opening | 0.75 |
| Closing | 1.05 |
| Maximum permissible deviation from flatness of the lower mating surface of the cylinder head, mm | 0.1 |
| Maximum permissible runout of the camshaft, mm | 0.01 |
| Maximum permissible valve clearance, mm | 0.20 |
| Valve stem diameter, mm: Inlet | 5.968-5.982 |
| Outlet | 5.958-5.972 |
| Valve working chamfer angle | 45° 10' |
| Maximum clearance of a new intake or exhaust valve in the corresponding guide bushing (when measured, the end of the valve stem is flush with the end of the sleeve), mm | 1.0 |
| Maximum permissible deviation of the actual diameter of cylinder 1* from the nominal, mm | 0.08 |
| Maximum permissible deviation of the actual piston diameter 2* from the nominal, mm: 3.0 TD engines | 0.05 |
| 4.2 TDI engines | 0.04 |
| Nominal diameter of the crankshaft main journal, mm | 65.000 -0.022 -0.042 |
| Nominal diameter of the crankshaft journal, mm: 3.0 TDI engines | 60.000 -0.022 -0.042 |
| 4.2 TDI engines | 60.000 -0.020 -0.040 |
1* Measured at three different cylinder depths, each time in two mutually perpendicular directions (total - 6 measurements).
2* Measured at a distance of 10 mm from the lower edge of the piston skirt, perpendicular to the axis of the piston pin.
3.0L TDI engines of the 1st generation
| Designations | BUG, BUN, CASA, CASB |
| Maximum power, kW (hP, approximately): BUG | 171 (229) at 4000 rpm |
| BUN | 155 (208) at 4000 rpm |
| CASA | 176 (236) at 4000 rpm |
| CASB | 155 (208) at 3500 rpm |
| Maximum torque, Nm; BUG | 500 at 1500-2750 rpm |
| BGN | 500 at 1400-2750 rpm |
| CASA, CASB | 550 at 2000-2250 rpm |
| Compression ratio | 17.0:1 |
| Axial clearance of camshaft 1*, mm: For a new shaft | 0.03-0.08 |
| Maximum allowable | 0.12 |
| Radial clearance of camshaft 2*, mm: For a new shaft | 0.035-0.085 |
| Maximum allowable | 0.100 |
| Valve plate diameter, mm: Inlet | 28.60-28.80 |
| Outlet | 26.70-26.90 |
| Valve length, mm: Inlet | 97.25-97.45 |
| Outlet | 97.35-97.55 |
| Number of holes (1 in illustration 11.22) depending on the maximum piston protrusion: 1 | 0.39-0.49 mm |
| 2 | 0.49-0.54 mm |
| 3 | 0.54-0.65 mm |
| Piston diameter 3* // cylinder, mm: Denomination | 82.939-82.951 // 83.006-83.014 |
| Repair size | 82.979-82.991 // 83.046-83.054 |
| Clearances in the locks of new/used piston rings (the ring is inserted into the cylinder perpendicular to its axis at a distance of 15 mm from the bottom edge of the cylinder), mm: 1st compression ring | 0.25-0.38 // 0.80 |
| 2nd compression ring | 0.70-0.90 // 1.30 |
| Oil scraper ring | no more than 0.40 // 0.70 |
| Clearance of new/used piston rings in piston grooves, mm: 1st compression ring | 0.120-0.160 // 0.175 |
| 2nd compression ring | 0.020-0.090 // 1.115 |
| Oil scraper ring | 0.020-0.090 // 1.115 |
| Crankshaft axial clearance, mm: For a new engine | 0.090 + 0.215 |
| Maximum allowable | 0.280 |
| Axial clearance for each pair of new connecting rods, mm | 0.20 - 0.44 |
| Radial clearance of main/connecting rod bearings of crankshaft 4*, mm: For a new engine | 0.018 - 0.045 // 0.015 - 0.062 |
| Maximum allowable | 0.10 // 0.12 |
1* Measured with the camshaft bed removed.
2* Determined by the Plastigage kit with the rocker arms removed.
3* Not counting the quickly wearing graphite coating with a thickness of 0.02 mm.
4* Determined by a Plastigage kit when tightening the crankshaft bed fasteners/connecting rod bearing caps to 30 Nm. Main bearing shells worn down to the nickel layer must be replaced before measurement.
3.0L TDI SCR engines
| Designations | SATA, SSMA |
| Maximum power, kW (hP, approximately) | 176 (236) at 4000-4500 rpm |
| Maximum torque, Nm | 500 at 1500-3000 rpm |
| Compression ratio | 16.4:1 |
| Other data | see data for 1st generation 3.0 TDI engines |