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Z12XE
Engine overview
Manufacturer
OPEL / VAUXHALL
Production years
2000-2014
Vehicles with this engine
S07
X01
H00
T98
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
Engine code
Z 12 XE
Capacity
1199 cc
Idle speed
780-1000 rpm
Normal
14-16 bar
Differential limit between cylinders
1.0 bar
Oil pressure
1.5 / 780-1000 bar/rpm
Idle speed
700 - 940 rpm
Normal
14.0 - 16.0 bar
Max. compression loss between cylinders
25 %
Oil pressure
1.5 bar/rpm
Engine (petrol)
Fuel system (make and type)
Motronic ME 1.5.5
Number of cylinders
4
Firing order
1-3-4-2
Spark plugs (make and type)
FR 8 LDCU
Spark plug gap
0.9-1.1 mm
Fuel pump pressure
3.8 bar
CO exhaust gas
< 0.5 %
Lambda
0.97-1.03
Lambda change (Delta Lambda)
0.03
Oil temperature during test
80 °C
Fast-idle speed
2800-3200 rpm
CO at fast-idle speed
< 0.3 %
Fuel system (make and type)
Bosch Motronic ME 1.5.5
Spark plugs (make and type)
Bosch FR 8 LDCU
Spark plug gap
0.9 - 1.1 mm
Fuel pump pressure
3.8 ± 0.2 bar
Lambda
0.97 - 1.03
Cooling system
Thermostat opens at
92 °C
Stage 1/Fan 1
98 °C
Stage 2/Fan 2
103 °C
Stage 3
106 °C
Electrical
Battery
44 Ah
Alternator
49 A
Brakes
Disc thickness, front
11.0 mm
Disc thickness, front, min.
8.0 mm
Disc thickness, front
24.0 mm
Disc thickness, front, min.
21.0 mm
Disc thickness, rear
10.0 mm
Disc thickness, rear, min.
8.0 mm
Drum diameter, rear
200.0 mm
Drum diameter, rear, max.
201.0 mm
Steering and wheel alignment
Toe-in, front
0°00' ± 10' °
Camber, front
-1°00' ± 30' (2001-2002) -0°30' ± 45' (2003-2004) °
Camber, front
-1°10' ± 30' (2001-2003) -0°40' ± 45' (2004) °
Camber, front
-0°50' ± 30' (2000-2003) -0°20' ± 45' (2004) °
Max. difference left side - right side
1° °
Castor, front
4°00' ± 30' °
Castor, front
4°15' ± 30' °
Toe-in, rear
0°20' ± 20' °
Toe-in, rear
0°25' +30'/-20' °
Toe-in, rear
0°15' ± 20' °
Max. difference left side - right side
15' °
Camber, rear
-1°40' ± 30' °
Max. difference left side - right side
35' °
Camber, front
-1°00' ± 30' (2000-2002) -0°30' ± 45' (2003-2004) °
Camber, front
-1°10' ± 30' (2000-2003) -0°40' ± 45' (2003) °
Camber, front
-0°50' ± 30' (2000-2002) -0°20' ± 30' (2003-2004) °
Castor, front
3°30' ± 30' °
Castor, front
3°45' ± 30' °
Camber, rear
-1°45' ± 30' °
Toe-in, rear
0°12' +30'/-20' °
Toe-in, rear
0°07' +30'/-20' °
Wheels and tyres
Tyre size
165/70/14
Optional
175/70/14
Optional
195/60/15
Front tyre pressure
2.1 bar
Rear tyre pressure
1.8 bar
Capacities
Engine sump, incl. filter
3.5 l
Plug location
F13
Gearbox refill
1.6 l
Cooling system
5.2 5.5 l
Air-conditioner refrigerant
600 g
Air-conditioner compressor oil
150 ml
Torque settings
Cylinder head bolts — Stage 1
25 Nm
Cylinder head bolts — Stage 2
60 °
Cylinder head bolts — Stage 3
60 °
Cylinder head bolts — Stage 4
60 °
Spark plugs
25 Nm
Wheel bolts
110 Nm
Wheel bearing unit to hub
90 Nm + 30° + 15° Nm
Wheel bearing unit to hub
50 Nm + 30° + 15° Nm
Emissions
Emission code
70/220*2001/1B
Emission standard
Euro 4
CO2 average
149 g/km
CO
0.319 g/km
HC
0.054 g/km
NOx
0.021 g/km
Emission code
70/220*2001/100B
CO2 average
146 - 149 g/km
Emission code
70/220*1999/102B
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.
