RHZ engine — SQ 2.0 diesel (2L)
2L · 109 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | RHZ |
| Capacity | 1997 cc |
| Idle speed | 850 ± 25 (820 ± 25) rpm |
| Normal | 30.0 bar |
| Minimum | 25.0 bar |
| Differential limit between cylinders | < 5.0 bar |
| Oil pressure | 2.0 / 1000 4.0 / 4000 bar/rpm |
Engine (diesel)
| System (make and type) | Bosch EDC 15C2 |
| Number of cylinders | 4 |
| Injector firing order | 1 - 3 - 4 - 2 |
| Pressure | 2.8 / 850 bar/rpm |
| Injector pressure | 200 - 1350 bar |
| Oil temperature during test | 80 °C |
| Exhaust gas analysis test method (Germany only) | B |
| Max. no-load governed speed | 4600 - 5100 rpm |
| Exhaust gas analysis test method (Germany only) | B / 1 |
| Test time | 1 s |
Cooling system
| Thermostat opens at | 83 - 95 °C |
Electrical
| Alternator | 150 A |
Capacities
| Engine sump, incl. filter | 4.75 l |
| Gearbox refill | 2.7 l |
| Gearbox refill | 2.2 l |
| Transfer box | 1.7 l |
| Differential, 4WD front | 1.0 l |
| Differential, 4WD rear | 2.5 l |
| Cooling system | 9.2 l |
| Air-conditioner compressor oil | 120 ml |
Torque settings
| Cylinder head bolts — Stage 1 | 20 Nm |
| Cylinder head bolts — Stage 2 | 60 Nm |
| Cylinder head bolts — Stage 3 | 220 ° |
| Glow plugs | 10 Nm |
| Oil plug | 34 Nm |
| Wheel nuts | 100 Nm |
| Front hub | 216 Nm |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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Get free diagnosis →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.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.