BMW 523i (E60)

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BMW 5 series 2003 2.5 petrol description

Sedan BMW 523i has been produced from March, 2005 to March, 2007. It has six-cylinder petrol engine with displacement of 2.5 litres, which produces power of 177 horsepower on 5800 rpm and torque 230 Nm (Newton metres) on 3500 revolutions per minute.

This 6-cylinder 24-valve engine camshaft is driven by chain (What is an engine chain and belt? ). Engine has fuel injection system, this is an atmospheric engine (without turbine). Engine versions compliant with Euro 4 and Euro 5 emission standards available. Engine lifespan (mileage before major repairs or overhaul) can last from 220 up to 370 thousand kilometres. It is important to remember that engine life is highly dependent on regular maintenance and the quality of the oils and fuels used.
More engine specs
On this engine, the valve seals and crankcase breather valve diaphragm tend to fail after ... This BMW 5 series 2.5 engine oil type is 5W-30 and oil capacity is 6.5 litres.

BMW 523i has classical rear wheel drive (RWD) and manual gearbox with 6 gears.
BMW 523i accelerates to speed 100 kilometres per hour in 8.5 seconds. The maximum speed of this car is 235 km/h.

BMW 523i fuel consumption is 8.5 litres per 100km in combined city/highway mode (11.8 km/l), fuel consumption in city - 12 l/100km, highway fuel economy - 6.4 l/100km. Fuel tank capacity is 70 litres or 18.49 gallons, which gives a mileage up to 820 kilometers without refueling in urban cycle and even up to 1080 kilometers on highway.
According to user reviews, this BMW real everyday fuel consumption is 9.5 litres per 100 km, which is 12% more than the manufacturer's stated. More - Real BMW 5 series fuel consumption.

BMW 5 series safety

During safety testing BMW 5 series has obtained 4 stars from five, which means good safety level.
Adults (driver and passenger) safety of BMW 5 series is evaluated with four stars, children safety - with four stars, and for pedestrian protection BMW 5 series got one star.

With the same engine there is also BMW 5 series version with automatic gearbox (BMW 523i AT) available, which is more sluggish, reaching 100 km/h 0.8 seconds later (in 9.3 seconds), moreover, it is less economic with manufacturer's fuel consumption is higher by 0.8 litres per 100 km or 9 % - 9.3 litres per 100 km, whereas users reported real fuel consumption is higher by 1.2 litres per 100 km or 13 % - 10.7 litres per 100 km.

BMW 5 series 2.5 service information and maintenance intervals Oil change intervals, capacities and specifications, service information for filters, spark plugs, belts etc.

BMW 523i technical data

Model:	BMW 523i
Body style:	Sedan
Production period:	2005. March ... 2007. March
Engine:	2497 cm³ Petrol, 6 cylinders	CO2 emissions:	205 g/km
Power:	177 HP ON 5800 RPM	Torque:	230 NM ON 3500 RPM
Gearbox:	Manual gearbox (6 gears)	Drive type:	Rear wheel drive (RWD)
Top speed:	235 km/h	Acceleration 0-100 km/h:	8.5 seconds
Fuel consumption (l/100km):	8.5 (combined) 12.0 (urban) 6.4 (highway)
Real fuel consumption:	9.5 l/100km (24.8 MPG) by user reviews from various sources
Fuel tank capacity:	70 litres (18.5 gallons)
Car dimensions:	4.84m (length) 1.85m (width) 1.47m (height)
Turning diameter:	11 meters
Trunk capacity:	520 litres
Gross weight:	2030 kg

BMW 523i engine N52B25

Engine reliability and common problems:

On this engine, the valve seals and crankcase breather valve diaphragm tend to fail after 80-100 000 km, leading to increased oil consumption. It is recommended to choose engines manufactured in the last years of production (after 2010). The engine is not suitable for power boost modifications.
Overall, this engine can last around 220,000 to 370,000 km if properly maintained, using the correct quality oil and fuel, and carrying out regular checks and maintenance.
The engine has hydraulic valve tappets (lifters), which provide quieter operation and do not require periodic adjustment, but are more complex in design and can cause serious engine damage in the event of failure.

Engine displacement	2497 cm³
Number of cylinders	6
Bore (cylinder diameter)	82 mm
Stroke length (piston move)	78.8 mm
Compression ratio	11 : 1
Camshaft drive	Timing chain Chain motors are considered more reliable, chain replacement usually is required less often than a timing belt, but they are often louder and vibrate more. More service info
Timing chain change interval	120,000 km (recommended) Sometimes manufacturers do not specify timing chain replacement intervals and design chains for engine life. However, once the recommended change interval has been reached, it is recommended to periodically check the condition of the chain and to change the chain if excessive stretching is detected or if unusual noises from the engine or other symptoms occur.
Fuel system	Injection
BMW 523i oil type	5W-30
Oil capacity	6.5 litres (6.9 quarts) More service info
Coolant capacity	9.8 litres (10.4 quarts)
Power	177 - 218 HP ON 5800 RPM
Torque	230 - 250 NM ON 3500 RPM
Start of production (year)	2004
Duration of production	7 years
Engine also used on	BMW 3 sērija BMW X3 BMW Z4
	Generally, the use of an engine in several models and its long production run is an indication of the quality of the engine and the success of its design.

Carmakers tend to use similar engines with different parameters for models available in different markets and time periods.

Most often compared to

Mercedes E 240 2002 2002 Compare BMW 523i vs Mercedes E 240 2002 2002

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BMW 523i 2007 Compare BMW 523i vs BMW 523i 2007

Mercedes CLS 320 2005 CDI 2004 Compare BMW 523i vs Mercedes CLS 320 2005 CDI 2004

Volvo S80 2.5 T 2003 Compare BMW 523i vs Volvo S80 2.5 T 2003

Compare BMW 5 series 2003 2.5 petrol 2005 to other cars

All BMW 5 series sedan [2003 - 2007] modifications

Modification	Engine	Power	Consumption	Gearbox	Drive type
BMW 520d Sep 2005 — Mar 2007 Most fuel efficient diesel version	2.0 Diesel	163 HP	5.9 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 520d Sep 2005 — Mar 2007	2.0 Diesel	163 HP	6.9 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 520i Jul 2003 — Mar 2005	2.2 Petrol	170 HP	9.0 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 520i Sep 2003 — Mar 2005	2.2 Petrol	170 HP	9.8 l/100km	Automatic ⁽⁵⁾	Rear wheel
BMW 523i Mar 2005 — Mar 2007 Most fuel efficient petrol version	2.5 Petrol	177 HP	8.5 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 523i Mar 2005 — Mar 2007	2.5 Petrol	177 HP	9.3 l/100km	Automatic ⁽⁵⁾	Rear wheel
BMW 525i Sep 2003 — Mar 2005	2.5 Petrol	192 HP	9.4 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 525i Sep 2003 — Mar 2005	2.5 Petrol	192 HP	9.9 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 525i Mar 2005 — Mar 2007	2.5 Petrol	218 HP	8.7 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 525i Mar 2005 — Mar 2007	2.5 Petrol	218 HP	9.4 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 525xi 4x4 Mar 2005 — Mar 2007	2.5 Petrol	218 HP	9.6 l/100km	Manual ⁽⁶⁾	All wheel
BMW 525xi 4x4 Mar 2005 — Mar 2007	2.5 Petrol	218 HP	10.0 l/100km	Automatic ⁽⁶⁾	All wheel
BMW 525d Jan 2004 — Mar 2007	2.5 Diesel	177 HP	6.7 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 525d Jan 2004 — Mar 2007	2.5 Diesel	177 HP	7.8 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 530i Jul 2003 — Mar 2005	3.0 Petrol	231 HP	9.8 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 530i Jul 2003 — Mar 2005	3.0 Petrol	231 HP	9.9 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 530i Mar 2005 — Mar 2007	3.0 Petrol	258 HP	8.8 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 530i Mar 2005 — Mar 2007	3.0 Petrol	258 HP	9.3 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 530xi 4x4 Mar 2005 — Mar 2007	3.0 Petrol	258 HP	9.7 l/100km	Manual ⁽⁶⁾	All wheel
BMW 530xi 4x4 Mar 2005 — Mar 2007	3.0 Petrol	258 HP	10.0 l/100km	Automatic ⁽⁶⁾	All wheel
BMW 530d Jul 2003 — Sep 2005	3.0 Diesel	218 HP	6.9 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 530d Jul 2003 — Sep 2005	3.0 Diesel	218 HP	7.8 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 530d Sep 2005 — Mar 2007	3.0 Diesel	231 HP	6.7 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 530d Sep 2005 — Mar 2007	3.0 Diesel	231 HP	7.5 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 530xd 4x4 Sep 2005 — Mar 2007	3.0 Diesel	231 HP	7.6 l/100km	Manual ⁽⁶⁾	All wheel
BMW 530xd 4x4 Sep 2005 — Mar 2007	3.0 Diesel	231 HP	8.2 l/100km	Automatic ⁽⁶⁾	All wheel
BMW 535d Sep 2004 — Mar 2007 Most powerfull diesel version (272 HP)	3.0 Diesel	272 HP	8.0 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 540i Mar 2006 — Mar 2007	4.0 Petrol	306 HP	11.0 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 540i Mar 2006 — Mar 2007	4.0 Petrol	306 HP	10.0 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 545i Sep 2003 — Sep 2005	4.4 Petrol	333 HP	11.0 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 545i Sep 2003 — Sep 2005	4.4 Petrol	333 HP	11.0 l/100km	Automatic ⁽⁶⁾	Rear wheel
BMW 550i Sep 2005 — Mar 2007 Most dynamic version - 100 km/h in 5.5 seconds	4.8 Petrol	367 HP	11.0 l/100km	Manual ⁽⁶⁾	Rear wheel
BMW 550i Sep 2005 — Mar 2007 Most powerfull petrol version (367 HP)	4.8 Petrol	367 HP	11.0 l/100km	Automatic ⁽⁶⁾	Rear wheel

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