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640.941
Engine overview
Manufacturer
MERCEDES-BENZ
Production years
2005-2012
Vehicles with this engine
W245
W169
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
Engine code
640.941
Capacity
1991 cc
Idle speed
650 - 850 rpm
Normal
27.0 - 32.0 bar
Differential limit between cylinders
< 3.0 bar
Oil pressure
> 0.8 bar/rpm
Oil pressure
> 3.0 / 2000 > 4.0 / 4000 bar/rpm
Engine (diesel)
System (make and type)
CDI A
Number of cylinders
4
Injector firing order
1 - 3 - 4 - 2
Injector (make and type)
Bosch ZEREAK20S
High-pressure pump:
Bosch CP3/S3
Low-pressure pump:
Bosch
Exhaust gas analysis
< 1.5 m-1
Cooling system
Cap pressure
1.4 bar
Thermostat opens at
87 - 102 °C
Electrical
Battery
45 Ah
Alternator
150 A
Brakes
Disc thickness, front
25.0 mm
Disc thickness, front, min.
22.4 mm
Disc thickness, rear
8.0 mm
Disc thickness, rear, min.
7.0 mm
Brake pad thickness, front
19.7 mm
Brake pad thickness, front, min.
11.7 mm
Brake pad thickness, rear
14.4 mm
Brake pad thickness, rear, min.
8.5 mm
Steering and wheel alignment
Vehicle condition
:
Toe-in, front
0°12' ± 10' °
Camber, front
A (± 20') °
Castor, front
B (± 30') °
Toe-in, rear
C °
Camber, rear
-1°30' ± 30' °
Wheels and tyres
Tyre size
205/55 R16 91H/V (6Jx16)
Front tyre pressure
2.0 - 2.2 bar
Rear tyre pressure
2.0 - 2.6 bar
Optional
215/45 R17 87V (7Jx17)
Front tyre pressure
2.5 bar
Rear tyre pressure
2.5 - 2.6 bar
Optional
195/55 R16 87T/H (6Jx16)
Spare tyre size
T125/90 R16 98M (3.5Jx16)
Capacities
Engine sump, incl. filter
5.8 (J358923) l
Engine sump, incl. filter
5.4 (J358924) l
Manual transmission
711.640
Gearbox refill
1.8 l
Automatic transmission
722.800
Gearbox refill
6.0 l
Gearbox refill
4.0 l
Cooling system
10.8 l
Air-conditioner refrigerant
840 (1J393301) g
Air-conditioner refrigerant
770 (1J393302) g
Air-conditioner compressor oil
120 ml
Torque settings
Cylinder head (Torx)
M12:
Cylinder head (Torx)
M10:
Big-end bearing cap — Stage 1
5 Nm
Big-end bearing cap — Stage 2
15 Nm
Big-end bearing cap — Stage 3
90 °
Main bearing cap — Stage 1
40 Nm
Main bearing cap — Stage 2
90 °
Glow plugs
15 Nm
Oil plug
30 Nm
Oil filter
25 Nm
Wheel nuts
130 Nm
Front hub — Stage 1
80 Nm
Front hub — Stage 2
90 °
Rear hub
120 Nm
Emissions
Emission code
70/220*2003/76B
Emission standard
Euro 4
CO2 average
159 - 164 g/km
CO
0.040 - 0.124 g/km
NOx
0.217 - 0.223 g/km
HC NOx
0.228 - 0.238 g/km
Particles
0.003 - 0.023 g/km
CO2 average
146 - 151 g/km
CO
0.259 - 0.339 g/km
NOx
0.187 - 0.196 g/km
HC NOx
0.221 - 0.256 g/km
Particles
0.003 - 0.016 g/km
CO2 average
159 - 165 g/km
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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Who makes these pages, and how TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
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The story behind TorqFix → Workshop data on this page last updated 22 Aug 2026.
