FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Engine: Application and ID


Engine serial No.





Engine number location

Example: B 23 4 I3 M 00 X000001

Pos. 1 Engine type
B = Petrol engine

Pos 2-3 Swept volume
20 = 1.985 dm3
23 = 2.290 dm3

Pos. 4 Cylinder head
4 = in-line 4-cylinder block with 2 balancer shafts and cylinder head with twin camshafts operating 4 valves per cylinder.
5 = in-line 4-cylinder block with 2 balancer shafts and cylinder head with twin camshafts operating 4 valves per cylinder.
Ecopower / Low-friction engine (gen 4)

Pos. 5 Version
I = Fuel injection
E = Turbocharged engine with charge air cooler, low-pressure turbo
L = Turbocharged engine with charge air cooler. Stage 1
R = Turbocharged engine with charge air cooler. Stage 2

Pos. 6 Car compliance
1 = Saab 9-3 with exhaust emission control ECE-R15/04
3 = Saab 9-3 with exhaust emission control fulfilling European requirements in accordance with 91/441/EEC, Swedish requirements in accordance with A12 environment class 3 and US CFR 40 part 86
5 = Saab 9-3 with exhaust emission control fulfilling requirements in accordance with State of California Administration Code Title 13, Swedish requirements in accordance with A14 environment class 2 and US CFR 40 part 86
7 = Saab 9-3 with exhaust emission control fulfilling requirements in accordance with US/ CARB TLEV and Swedish requirements in accordance with A14 environment class 1

Pos. 7 Gearbox type
A = Automatic transmission
M = Manual gearbox.

Pos 8-9 Various
00 = Basic

Pos. 10 Model year according to ISO 3779
X = 1999
Y = 2000
1 = 2001
2 = 2002
3 = 2003

Pos. 11-16 Serial number