Land Rover2018–2021Technical specifications

Discovery 3.0 Sd6: Technical specifications

Workshop data for the 3-litre diesel (engine code 306DT). Covers engine, fluids, brakes, service, torques and air conditioning: the figures to check before a job or a parts order.

Summary

Match the engine code (306DT) and chassis (L462) to the vehicle before ordering parts or applying these figures.

Vehicle specifications

Overview

Make
Land Rover
Model
Discovery
Chassis
L462
Years
2018–2021
Fuel
Diesel
Engine code
306DT

Performance & efficiency

Power
225 kW (306 hp)
Engine size
2,993 cc
Cylinders
6 · DOHC
Compression ratio
16.1:1
Fuel system
Bosch

Fluids & capacities

Engine oil (with the filter)
5.9 litres
All 82 specifications below

Engine & identification

Vehicle identification

No. of cylinders Type6/DOHC
Capacity cc2993
Compression ratio :116,1
Fuel system MakeBosch
Fuel system TypeEDC 17CP55.2

Injection system

Air metering TypeMass/MAP
Pump typeCommon rail
Fuel main pump delivery pressure bar2000 Max

Injection sequence

The injection sequence for the Land Rover Discovery 3.0 Sd6 (2018–2021) is 1-4-2-5-3-6.

Injection sequence1-4-2-5-3-6

Valve clearances

Valve clearances on the Land Rover Discovery 3.0 Sd6 (2018–2021) are hydraulic — they self-adjust, so no manual clearance figure applies.

Valve clearance - INLET mmHydraulic
Valve clearance - EXHAUST mmHydraulic

Engine oil & fluids

Engine oil

The Land Rover Discovery 3.0 Sd6 (2018–2021) takes 5.9 litres of engine oil with the filter. The specified engine oil grade is SAE 5W-30 for all ambient temperatures, with oil specification STJLR.03.5005.

Coolant

The listed coolant type is Havoline XLC. The recorded coolant colour is Orange. The listed total cooling-system capacity is 9.4 litres.

Grades, filling conditions and capacities

Lubricants and capacities — complete reference
Engine oil options
Ambient temperature range All temperatures
Engine oil grade SAE 5W-30
Engine oil classification OEM STJLR.03.5005
Engine with filter(s) litres 5.9
Other lubricants and capacities
Automatic transmission fluid Type Shell L12108 (ZF Lifeguard 8)
Automatic transmission (drain & refill) litres —
View more information —
Filling and checking level
Automatic transmission (dry fill) litres 8.5
Automatic transmission - dry-fill capacity
Differential oil grade - front SAE 75W-90 Castrol SAF-XO
Differential front/AT litres 0.51-0.54
Differential oil grade - rear SAE 75W-90 Castrol SAF-XO
Differential rear litres 0.85-0.87
Transfer box oil grade SAE —
Transfer box litres —
Coolant Type Havoline XLC
Coolant Colour Orange
Cooling system - total capacity litres 9.4
Cooling system
Brake fluid Type DOT 4
Brake fluid classification LRES22BF03
Brake fluid litres 0.9
Selective catalytic reduction (SCR) additive Type AdBlue (AUS 32/ARLA 32)
Selective catalytic reduction (SCR) additive litres 18.0

Brakes & wear limits

Brake disc thickness

Brake discs on the Land Rover Discovery 3.0 Sd6 (2018–2021) are replaced at a minimum thickness of 31 mm (ventilated) front and 23 mm (ventilated) rear.

Minimum disc thickness for replacement - ventilated Front31 mm
Minimum disc thickness for replacement - ventilated Rear23 mm

Brake disc and drum dimensions

Disc runout Front0,05 mm
Disc runout Rear0,07 mm
Minimum pad thickness Front2 mm
Minimum pad thickness Rear3 mm

Service & electrical

Glow plugs

Glow plugs for the Land Rover Discovery 3.0 Sd6 (2018–2021): Original equipment 9X2Q-6M090-AC and Bosch 250603005.

Glow plug - part no. Original equipment9X2Q-6M090-AC
Glow plug - part no. Bosch250603005

Service checks and adjustments

Thermostat opens °C82-96

Tightening torques

Cylinder head bolt torque

The cylinder head bolts on the Land Rover Discovery 3.0 Sd6 (2018–2021) are tightened in 5 stages: 20 Nm, then 40 Nm, then 80 Nm, then 90°, then a final 90°.

Cylinder head
Renew boltsYes
Tighten20 Nm
Tighten40 Nm
Tighten80 Nm
Tighten90°
Tighten90°
Cylinder head instructions—
Other engine tightening torques
Oil pump to cylinder block10 Nm
View more information—
Sump boltsM6=10 Nm M8=23 Nm
View more information—
Assemble components within 7 minutes.
Flywheel/driveplate-/45 Nm+90°
Crankshaft pulley/damper centre bolt1)150 Nm 2)300 Nm+90°
View more information—
Crankshaft pulley/damper centre bolt
Camshaft sprocket/gear—
View more information—
Camshaft carrier/cap—
View more information—
Inlet manifold to cylinder head10 Nm
Exhaust manifold to cylinder head1)5 Nm 2)28 Nm
Water pump10 Nm
Injector/clamp9 Nm
Injector pipe unions1)15 Nm 2)35 Nm
Fuel/injection pump sprocket/gear50 Nm
Fuel/injection pump mounting23 Nm
Glow plugs10 Nm
Crankshaft position (CKP) sensor/engine speed (RPM) sensor5 Nm
Camshaft position (CMP) sensor10 Nm
Nitrogen oxide (NOx) sensor48 Nm
Engine oil pressure switch14 Nm
Oil filter25 Nm
Chassis tightening torques
Front hub120 Nm+60°
Rear hub120 Nm+60°
Steering wheel48 Nm
Steering rack/box mounting110 Nm+240°
Steering track rod end140 Nm
Brake disc to hub Front10 Nm
Brake caliper to carrier Front35 Nm
Brake caliper/carrier to hub Front133 Nm+60°
Brake disc to hub Rear10 Nm
Brake disc to hub
Brake caliper to carrier Rear10 Nm
Brake caliper to carrier
Brake caliper/carrier to hub Rear110 Nm+120°
ABS sensor Front9 Nm
ABS sensor Rear9 Nm
Road wheels—

Air conditioning

No. of AC service connectors2
Air conditioning restrictor typeExpansion valve
Compressor clutch/magnetic couplingYes
Compressor variable displacement solenoidYes
Air conditioning refrigerant Type—
Do not mix R134a with R1234yf.
Air conditioning refrigerant quantity grams800±10
Air conditioning oil groupPAG
Air conditioning oil TypeSPA2
Air conditioning oil quantity cm³80

Frequently asked questions

What is the injection sequence of the Land Rover Discovery 3.0 Sd6?

The injection sequence for the Land Rover Discovery 3.0 Sd6 (2018–2021) is 1-4-2-5-3-6.

What glow plugs does the Land Rover Discovery 3.0 Sd6 use?

Glow plugs for the Land Rover Discovery 3.0 Sd6 (2018–2021): Original equipment 9X2Q-6M090-AC and Bosch 250603005.

How much oil does the Land Rover Discovery 3.0 Sd6 take?

The Land Rover Discovery 3.0 Sd6 (2018–2021) takes 5.9 litres of engine oil with the filter. The specified engine oil grade is SAE 5W-30 for all ambient temperatures, with oil specification STJLR.03.5005.

What are the valve clearances for the Land Rover Discovery 3.0 Sd6?

Valve clearances on the Land Rover Discovery 3.0 Sd6 (2018–2021) are hydraulic — they self-adjust, so no manual clearance figure applies.

What is the cylinder head torque for the Land Rover Discovery 3.0 Sd6?

The cylinder head bolts on the Land Rover Discovery 3.0 Sd6 (2018–2021) are tightened in 5 stages: 20 Nm, then 40 Nm, then 80 Nm, then 90°, then a final 90°.

What is the minimum brake disc thickness for the Land Rover Discovery 3.0 Sd6?

Brake discs on the Land Rover Discovery 3.0 Sd6 (2018–2021) are replaced at a minimum thickness of 31 mm (ventilated) front and 23 mm (ventilated) rear.

More on the Discovery