Samiksha Jaiswal (Editor)

BMW M54

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Production
  
2000–2006

Predecessor
  
Configuration
  
Successor
  
BMW M54 Project M54 engine E46Fanatics

Manufacturer
  
BMW, Bayerische Motoren Werke AG

Part 1 bmw m54 engine disassembly get to know your engine


The BMW M54 is a straight-6 DOHC piston engine which replaced the M52 and was produced from 2000-2006. There was no "technical update" (TU) version of the M54 produced, therefore the engine specifications remained the same throughout its 7-year production. The M54 began to be phased out following the introduction of the BMW N52 in 2004.

Contents

BMW M54 Photo DIY BMW M54 6cylinder Crankcase Ventilation PCV 325i

The main differences between the M54 and its M52TU predecessor are the non-return fuel system, a fully electronic throttle (without mechanical backup), an electronically controlled thermostat and that the North American engines no longer use an iron block. The M54 uses an aluminium block and aluminium cylinder head with cast iron cylinder liners and, like the M52TU, the M54 features variable valve timing to both camshafts (called dual VANOS by BMW) and a dual length intake manifold (called "DISA" by BMW).

BMW M54 BMW E60 5Series Water pump Replacement M54 6 Cylinder Pelican

Part 5 bmw m54 engine disassembly cams and head removal


M54B22

The 2,171 cc (132 cu in) M54B22 produces 125 kW (168 hp) at 6100 rpm and 210 N·m (150 lb·ft) of torque at 3500 rpm.

Applications:

  • 2000-2006 E46 320i, 320Ci
  • 2000-2003 E39 520i
  • 2000-2002 E36/7 Z3 2.2i
  • 2003-2005 E85 Z4 2.2i
  • 2003-2005 E60/E61 520i
  • M54B25

    BMW M54 httpsuploadwikimediaorgwikipediacommonsthu

    The M54B25 is a 2,494 cc (152 cu in) engine with an 84 mm (3.3 in) bore and 75 mm (3.0 in) stroke. Output is 141 kW (189 hp) at 6000 rpm and 245 N·m (181 lb·ft) of torque at 3500 rpm.

    Applications:

    BMW M54 M54 Engine Details Bimmerfest BMW Forums

  • 2000-2002 E36/7 Z3 2.5i
  • 2000-2006 E46 325i, 325xi, 325Ci
  • 2000-2004 E46/5 325ti
  • 2000-2004 E39 525i
  • 2003-2005 E60/E61 525i, 525xi
  • 2003-2006 E83 X3 2.5i
  • 2002-2005 E85 Z4 2.5i
  • M54B30

    At 2,979 cc (182 cu in), the M54B30 is the largest M54 engine. The extra capacity is achieved using an increased stroke of 89.6 mm (3.5 in). Power is 170 kW (230 hp) at 5,900 rpm and torque is 300 newton metres (220 lb·ft) at 3,500 rpm. There was also a slightly more powerful version of the M54B30 that could be ordered as part of the M Performance package in Canada or the Performance package in the USA. This engine used different camshafts and reprogrammed engine management to develop 175 kW (235 hp) at 5,900 rpm and 301 newton metres (222 lb·ft) at 3500 rpm and have a slightly higher redline of 6800 rpm (although the Canadian cars still show the limiter at 6500 rpm on the tachometer).

    The M54B30 was on the Ward's 10 Best Engines list through 2001-2003.

    Applications:

  • 2000-2006 E46 330i, 330xi, 330Ci
  • 2000-2004 E39 530i
  • 2000-2002 E36/7 Z3 3.0i
  • 2003-2005 E60 530i
  • 2002-2005 E85 Z4 3.0i
  • 2003-2006 E83 X3 3.0i
  • 2000-2006 E53 X5 3.0i
  • 2002-2005 E65/E66 730i, 730Li
  • S54

    The S54 is the high performance equivalent to the M54. It was used in the E46 M3, Z3 M Coupé / Roadster, and the E85 Z4 M Roadster / E86 M Coupe. The S54 is technically an evolution of the iron-block S52B32. It shares few major components with the S52 and differences include:

  • Increased cylinder bore to 87 mm (from 86.4 mm) for a new total displacement of 3,246 cc (from 3,201 cc)
  • Modified camshafts
  • Block deck taller by 20mm
  • High pressure Double VANOS continuously variable valve timing system with faster operation at high rpm
  • Increased compression to 11.5:1 (from 11.3:1)
  • More advanced BMW/Siemens MSS 54 engine management control
  • Finger-type rocker arms for reduced reciprocating mass and friction
  • One-piece aluminum head casting for lighter weight
  • Scavenging oil pump to maintain pressure during heavy cornering
  • S54B32

    Applications:

  • 2000-2006 E46 M3 (except North America) 252 kW (338 hp; 343 PS), 365 N·m (269 lb·ft)
  • 2000-2006 E46 M3 (North America only) 248 kW (333 hp; 337 PS), 355 N·m (262 lb·ft)
  • 2000-2002 E36/7 Z3M (except North America) 239 kW (325 PS), 354 N·m (261 lb·ft)
  • 2000-2002 Z3 M Coupé / Roadster (North America only) 235 kW (315 hp), 341 N·m (252 lb·ft)
  • 2002-2011 Wiesmann Roadster MF3 256 kW (348 PS), 365 N·m (269 lb·ft)
  • 2003 E46 M3 CSL 265 kW (360 PS), 370 N·m (270 lb·ft)
  • 2006-2008 E85/E86 Z4M (except North America) 252 kW (343 PS), 365 N·m (269 lb·ft)
  • 2006-2008 E85/E86 Z4M (North America only) 246 kW (330 hp), 355 N·m (262 lb·ft)
  • S54B32HP

    The upgraded S54 engine used in the E46 M3 CSL, officially designated S54 B32HP, has a high flow carbon fiber air intake, modified valve and camshaft timing, and a retuned DME using a MAP sensor instead of the MAF sensor found in a standard M3. However, the engine is further modified in order to reduce weight – it features a lightweight exhaust manifold (made standard on late models of the normal M3) and thinner exhaust piping. Additionally, the intake and exhaust manifolds are slightly straightened to improve engine responsiveness.

    References

    BMW M54 Wikipedia


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