BMW S52B32 Engine: Specs, Problems, Reliability, & More

BMW S52B32 Engine: Specs, Problems, Reliability, & More. The S52B32 is based upon the M52B28 engine. This engine was designed particularly for the North American M-version versions instead of the S50B32 engine made use of in the European market.

BMW S52B32 Engine: Specs, Problems, Reliability, & More

The engine obtained cast iron cyndrical tube block (the exact same style as the M52B28 has in North America) with 86.4 mm bore. It has a strong and also lightweight forged crankshaft able to handle raised tons. Connecting rods conserved the length of 135 mm long, but and the piston compression elevation is 31 mm. The stroke of the crankshaft was raised approximately 89.6 mm providing a 10.5:1 compression ratio and 3.2-liter variation.

BMW S52B32 Engine: Specs, Problems, Reliability, & More

The S52 engine uses an upgraded M52 cyndrical tube head with Double VANOS system. It has bigger water networks for much better air conditioning, stiffer shutoff springs, and brand-new camshafts. The head gasket is distinct for this engine and not interchangeable with M52 engines. S52B32 camshaft specifications: period 252/244 deg, valve lift 10.2/ 10.2 mm.

The consumption consists of a simple plastic consumption manifold and also electronic throttle body, yet the exhaust system obtained brand-new much more reliable exhaust manifold. The engine control system (ECU) is Siemens MS41.1.

Some European car enthusiasts acquire S52 engines from the U.S.A. due to its higher integrity as well as tuning capacity. This engine can be located under a hood of the US/Canada BMW M3 E36 or Z3M autos up until 2000. In 2000, it was changed by the genuine M-engine – S54B32.

S52B32 Engine Problems and Reliability

  1. The slim walls of the plastic thermostat are the usual reason for coolant leaks.
  2. The boosted air conditioning network in the head likewise raises an opportunity to get coolant in the cylinder when the engine is overheating.
  3. High oil consumption can lead to severe damage of pistons under a high load.
  4. Double VANOS life is only about 120,000 miles.
  5. Air leakages in the consumption manifold create an incorrect dimension of the Lambda sensor. That is extremely typical for the S52 engine.
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Engine Specs

  • Manufacturer: Munich Plant
  • Production years: 1996-2000
  • Cylinder block material: Cast Iron
  • Cylinder head material: Aluminum
  • Fuel type: Gasoline
  • Fuel system: Fuel injection
  • Configuration: Inline
  • Number of cylinders: 6
  • Valves per cylinder: 4
  • Valvetrain layout: DOHC
  • Bore, mm: 86.4S
  • troke, mm: 89.6
  • Displacement, cc: 3152
  • Type of internal combustion engine: Four-stroke, naturally aspirated
  • Compression Ratio: 10.5:1
  • Power, hp 240 hp: /6,000
  • Torque, lb ft: 240 lb-ft (320 Nm)//3,800
  • Engine weight: –
  • Firing order: 1-5-3-6-2-4
  • Engine oil weight: 0W-30, 0W-40, 5W-30, 5W-40
  • Engine oil capacity, liter: 5.5
  • Oil change interval, mile: 6,000 (10,000 km) or 12 month
  • Applications: 1996-1999 E36 M3 (Canada and USA only), 1998-2000 E36/7/8 Z3M (Canada and USA only)

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