Mercedes OM407 and OM409 specifications and manuals

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Popular Diesel Engine Specs

Workshop manual, specs and bolt torques for OM407 and OM409 engines

OM407 Essential Diesel Engine Bolt Tightening Torques

Main Bearing Bolts 
12pt bolts:
 300 Nm + 90-100° 
Hex bolts:
 80-90 Nm + 90-100°

Connecting Rod Bolts
step 1 = 100 Nm 
step 2 + 90-100°

Cylinder head Bolts
step 1 =  10 Nm
step 2 =  60 Nm
step 3 = 120 Nm
step 4 = 180 Nm
final step + 90-100°

OM407 Diesel Engine Specs

Arrangement
OM407 -ADE407N
6 Cylinder In-Line
4-stroke cycle
Naturally aspirated

ADE407C
6 Cylinder In-Line
4-stroke cycle
Compensated

OM407A - ADE407T
6 Cylinder In-Line
4-stroke cycle
Turbocharged

Designations
German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE 

Displacement
11.41 liter

Compression ratio:
407N 16.5:1
407C 16.0:1
407T 16.0:1

Weight approx:
407N 795 kg, 1749 lb

Designations
German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE

Power 
 407N
233 hp, 174 kW @ 2200 rpm

 407C
234 hp, 175 kW @ 2200 rpm

 407T
276 hp, 206 kW @ 2200 rpm

Designations
German - English
A = Turbocharger = T
L = Intercooler = I
OM = Diesel engine = ADE

Torque 
 407N
614 lb.ft, 823 Nm @ 1400 rpm

 407C
727 lb.ft, 975 Nm @ 1300 rpm

 407T
868 lb.ft, 1177 Nm @ 1300 rpm


OM407-OM409 Diesel Engine workshop repair Manuals

Dimensions approx: ade multi engine dimensions image


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Phone: +27 72 754 4660
email: steve@barringtondieselclub.co.za
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