TD4, TDV6, TDV8: Land Rover diesel engines with Common Rail direct fuel injection system

TD4, TDV6, TDV8: Land Rover diesel engines with Common Rail direct fuel injection system

TD4, TDV6, TDV8 is a line of diesel power units installed on Land Rover vehicles. It is presented by turbocharged engines. Most of them are equipped with a Common Rail direct injection system. However, there are versions with different fuel supply systems: with direct injection and a distribution high-pressure fuel pump without common rail or with injection in a swirl chamber. These motors were a common development of other car makers such as PSA Peugeot, Citroën, Ford Motor Company and BMW. Many versions have twin-turbo, which guarantees maximum efficiency and performance of the motors, also providing excellent traction characteristics.

Popular TD4, TDV6 and TDV8 engines

Engine model Engine index Capacity, l Quantity and arrangement of cylinders Quantity of valves Output, hp Maximum torque, Nm Model applications
TD4 204D3 (M47TUD20) 2.0 4, in-line 16 116‒150 280‒330 Land Rover Freelander
224DT(DW12BTED4) 2.2 4, in-line 16 122–200 360‒450 Land Rover Discovery Sport; Land Rover Freelander; Range Rover Evoque
ZSD-424 2.4 4, in-line 16 122 360 Land Rover Defender
TDV6 306DT, 30DDTX 3.0 V6 24 211‒306 520‒700 Range Rover Sport; Land Rover Discovery; Range Rover
276DT 2.7 V6 24 190 440 Land Rover Discovery; Range Rover
TDV8 448DT 4.4 V8 32 313‒339 700‒740 Range Rover
368DT 3.6 V8 32 271‒272 630‒640 Land Rover Range Rover; Range Rover Sport

Common malfunctions of TD4, TDV6 and TDV8 engines

MalfunctionsEngines
Unreliable swirl flaps. Due to poor fastening they can tear off and cause damage to pistons and turbine.204D3
Crankshaft pulley breaks down quite soon.204D3
The process of demounting injectors is complicated and laborious. In most cases they are to be drilled out.224DT, DW12BTED4
The pump which supplies fuel into the rail wears down fast due to impurities in diesel fuel. Products of its wear clog the injectors.ZSD-424,  306DT, 30DDTX, 276DT
There is a knocking sound coming from under the bonnet after 200.000 km, which is caused by damage to connecting rod ends.ZSD-424
The engine stalls or doesn’t start due to a poor design of the crankshaft position sensor.306DT, 30DDTX
Premature failure of crankshaft bearing due to imperfectness of its design.306DT, 30DDTX, 276DT
The turbocharger starts to malfunction due to a defective driving mechanism.276DT
Plastic elements of the intake manifold get cracked, as well as air pipes.448DT
Cracked thermostat casing causes the engine to overheat.368DT
Oil leaking from the turbocharger causes oil starvation of the power unit.368DT
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