Individual characteristics are also given in the text of the Chapter and, if their implementation is mandatory, are highlighted in bold
| Engine Designation (Type) // Start of Production | |
316i | M43TU (OHC) // 9/98 |
318i | M43TU (OHC) // 4/98 |
320i | M52TU (DOHC) // 4/98 |
| 323i | M52TU (DOHC) // 4/98 |
| 325i | M52TU (DOHC) // 4/98 |
| 328i | M52TU (DOHC) // 4/98 |
| 330i | M54 // 9/99 |
| M3 | S52 (DOHC) // -/99 |
| 320d | M47 (DOHC) // 4/98 |
| 330d | M57U // -/99 |
| Working volume of cylinders, cm³ | |
316i | 1895 |
318i | 1895 |
320i | 1991 |
| 323i | 2494 |
| 325i | 2494 |
| 328i | 2793 |
| 330i | 2979 |
| M3 | 3246 |
| 320d | 1951 |
| 330d | 2926 |
| Power, kW (hp) at rpm // Torque, Nm at rpm | |
316i | 77(105)/5300 // 165/2500 |
318i | 87(118)/5500 // 180/3900 |
320i | 110(150)/5900 // 190/3500 |
| 323i | 125(170)/5500 // 245/3500 |
| 325i | 141(192)/6000 // 245/3500 |
| 328i | 142(193)/5500 // 280/3500 |
| 330i | (231)/5900 // 300/3500 |
| M3 | (342)/7900 // 356/4900 |
| 320d | 100(136)/4000 // 280/1750 |
| 330d | (184)/4000 // 390/1750 |
| Arrangement/Number of cylinders // Number of valves per cylinder | |
316i | in-line/4 // 2 |
318i | in-line/4 // 2 |
320i | in-line/6 // 4 |
| 323i | in-line/6 // 4 |
| 325i | in-line/6 // 4 |
| 328i | in-line/6 // 4 |
| 330i | in-line/6 // 2 |
| M3 | /6 // 4 |
| 320d | in-line/4 // 4 |
| 330d | in-line/6 // 4 |
| Cylinder diameter, mm | |
316i | 85.0 |
318i | 85.0 |
320i | 80.0 |
| 323i | 84.0 |
| 325i | 84.0 |
| 328i | 84.0 |
| 330i | 84.0 |
| M3 | 87.0 |
| 320d | 84.0 |
| 330d | 84.0 |
| 1st repair | +0.250 |
| 2nd repair | +0.500 |
| Piston stroke, mm | |
316i | 83.5 |
318i | 83.5 |
320i | 66.0 |
| 323i | 75.0 |
| 325i | 75.0 |
| 328i | 84.0 |
| 330i | 89.6 |
| M3 | 91.0 |
| 320d | 88.0 |
| 330d | 88.0 |
| Compression ratio | |
316i | 9.7 |
318i | 9.7 |
320i | 11.0 |
| 323i | 10.5 |
| 325i | 10.5 |
| 328i | 10.2 |
| 330i | 11.0 |
| M3 | 11.3 |
| 320d | 19.0 |
| 330d | 18.0 |
| Compression pressure,bar | |
| Petrol engines | |
| default value (new) | 9-14 |
| wear limit | 7.5 |
| Diesel engines | |
| default value (new) | 25-31 |
| wear limit | 19.0 |
| Pistons | |
| Cylinder clearance | 0.03 |
| Wear limit | 0.06 |
| Piston rings | |
| Groove clearance, mm | |
| Compression | 0.02-0.07 |
| Oil scraper | 0.02-0.06 |
| Wear limit | 0.12 |
| Lock clearance/wear limit, mm | |
| Compression | 0.15-0.40/0.8 |
| Oil scraper | 0.25-0.50/1.0 |
| Three-component oil scraper | up to 1.0/1.3 |
| Permissible minimum cylinder head height | |
| M43TU engines | |
| Nominal size | 141.0 mm |
| Processing limit | 140.55 mm |
| M52TU engines | |
| Nominal size | 140.0 mm |
| Processing limit | 139.70 mm |
| Crankshaft | |
| Main bearings | |
| Clearance/wear limit, mm | 0.02-0.06/0.17 |
| Maximum ovality, mm | 0.03 |
| Connecting rod bearings | |
| Clearance/wear limit, mm | 0.01-0.06/0.12 |
| Crankshaft axial clearance/wear limit, mm | 0.07-0.17/0.25 |
| Valve clearances | No adjustment is required, as hydraulic compensators are used |
| Lubrication system | Forced circulation system with gear oil pump |
| Engine oil | |
| Type | |
| Petrol engines | |
| SAE OW-30 viscosity: CASTROL Formula SLX, DEA Ultec Syn-T, ESSO Ultron (Fuel Economy), SHELL Helix Ultra, VEEDOL Syntrhon. | |
| Viscosity SAE OW-40: ARAL Super Tronic, AVIA SYNTH, BMW Super Power Spezial, BP VISCO 7000, MOBIL 1, SHELL Helix Ultra. | |
| Viscosity SAE 5W-30: AGIP TECSINT, ARAL Super Tronic, BMW Super Power Plus, CASTROL TXT, DEA Viscobil S1, FINA FE 2000 5W-30, LIQUI MOLY Profi Synthol, MOBIL 1, MOBIL 1 Rally Formula, SHELL Helix Ultra, VALVOLINE Syn Power, VEEDOL Spezial R Plus. | |
| Viscosity SAE 5W-40: AGIP Extra HTS, ARAL Super Tronic, AVIA SYNTH, BMW Super Power, BP Visco 5000, DEA Viscobil S1, ELF Synthese, ESSO Megatron, FINA First, FINA Motortronic RS, LIQUI MOLY Synthoil High Tech, MOBIL 1, MOBIL 1 Rally Formula, MOTUL Synergie, SHELL Helix Plus, SHELL Helix Ultra, TOTAL Activa 9000, TOTAL quartz 9000, VALVOLINE Syn Power. | |
| Diesel engine 320d | |
| Any engine oils that meet both ACEA A3-96 and ACEA B3-96 standards. Viscosity: OW-X, 5W-X and 10W-X. Here X stands for any value, such as 30, 40 or 50. | |
| Volume, with filter replacement | |
| 316i | 4.0 |
| 318i | 4.0 |
| 320i | 6.5 |
| 323i | 6.5 |
| 328i | 6.5 |
| 320d | 5.0 |
| The difference between the "max" and "min" marks on the measuring rod | 1 liter |
| System pressure, bar | |
| At idle speed | not less than 0.5 |
| Petrol engines at 5000 rpm | 4.0 – 4.5 |
| Diesel engines at 4000 rpm | 3.7 – 4.7 |
| Pressure reducing valve | |
| Opening pressure, bar | 4.0 |
| Cooling system | Circulation, with water pump, thermostat, fan and plate-and-tube radiator |
| Coolant volume | |
| 316i | 6.0 |
| 318i | 6.0 |
| 320i | 8.4 |
| 323i | 8.4 |
| 328i | 8.4 |
| 320d | 7.0 |
| Air filter | Dry, with paper element |
| Ribbed V-belts | |
| 318i | 6 RK x 1733 (5 RK x 950) |
| 320d | 5 RK x 2030 (5 RK x 836) |
| 320i, 323i, 328i | 6 RK x 1538 (5 RK x 863) |
| Fuel | |
316i | unleaded, not worse than AI 95 |
318i | unleaded, not worse than AI 95 |
320i | unleaded, not worse than AI 983) |
| 323i | unleaded, not worse than AI 983) |
| 325i | unleaded, not worse than AI 98 |
| 328i | unleaded, not worse than AI 983) |
| 330i | unleaded, not worse than AI 983) |
| M3 | unleaded, not worse than AI 983) |
| 320d | Diesel |
| 330d | Diesel |
| 3)It is possible to refuel with AI 95 gasoline with a slight decrease in engine power. AI 91 can be used only in exceptional cases. | |
| Engine management system1) | |
316i | BMS 46 |
318i | BMS 46 |
320i | Siemens MS 42.0 |
| 323i | Siemens MS 42.0 |
| 325i | Siemens MS 42.0 |
| 328i | Siemens MS 42.0 |
| 320d | DDE Bosch 3.0 |
| 330d | DDE Bosch 3.0 |
| 1) BMS - BMW engine management system. MS - engine management system (Motronic). DDE - digital diesel engine management system | |
| Anti-lock brake system ABS dynamic stability control system built into ABS - DSC3, on early E46 models traction control system - (Teves ABS/ASC Mark20ET) | |
| Supplemental Safety System SRS | MRS2, MRS3 |
| AT with electronic control EGS/AGS | A5S 360R Siemens AGS 20 |
| Tightening forces of threaded connections | |
| Tightening torques for fasteners are also given in the text of the Chapter and in some illustrations*. *Tightening torques highlighted in bold in the text must be strictly observed; efforts not in bold are only approximate | |
| Cylinder head bolts | |
| M43TU engines | |
| 1st reception | 30 H•m |
| 2nd reception | 90° |
| 3rd reception | 90° |
| M52TU engines | |
| 1st reception | 40 H•m |
| 2nd reception | 90° |
| 3rd reception | 90° |
| M47 Engines | |
| 1st reception | 80 H•m |
| 2nd reception | 180° |
| 3rd reception | 50 H•m |
| 4th reception | 90° |
| 5th reception | 90° |
| Tightening the cylinder head bolts on a warm engine during maintenance or repairnot allowed. | |
| Bolts securing the lower part of the intake manifold to the cylinder head | |
| M6 | 10 H•m |
| M7 | 15 H•m |
| M8 | 22 H•m |
| Engine Mounts and Bracket | |
| Bolt M8 | 22 H•m |
| Bolt M10 | 47 H•m |
| Oil drain plug | |
| M12 (for 17 mm key) | 25 H•m |
| M22 | 60 H•m |
| Threaded plug for locking chain tensioner (320d) | 30 H•m |
| *) Replace the sealing ring | |
| Sprockets for camshafts (320d) | 20 H•m + 35° |
| Flywheel to crankshaft mounting bolts | |
| 316i, 318i | 120 H•m |
| 320i, 323i, 328i, 320d | 105 H•m |
| Gearbox flange mounting bolts | |
| M8 | 22 H•m |
| M10 | 45 H•m |
| M12 | 70 H•m |
| Oil pressure sensor | 35 H•m |
| Spark plugs | 25 H•m |