Land Rover Range Rover L322

4.4-litre V8 diesel with a known cast crankshaft weakness — forged crankshaft upgrade recommended. Plastic timing chain tensioners and coolant pipes are critical weak points. Repairs can cost £4,000–£20,000. Only acceptable with a very well-maintained service history and oil changes at max. 8,000 km.

• !! Crankshaft fracture from casting weakness from 180,000 km

  The production cast-iron crankshaft of the 448DT is known for premature cracking. Tuners and specialists recommend upgrading to a forged crankshaft. Repair costs are extreme.

  Symptoms: Dull knocking from the engine block, oil pressure warning light, metallic noises, sudden engine seizure
  5,000–25,000 $
  Ad crankshaft 448DT SDV8geschmiedete crankshaft 4.4 TDV8Hauptlager 448DT Range Rover
• !! Plastic timing chain tensioner failure from 120,000 km

  The plastic timing chain tensioner of the 448DT is the single most critical weak point. Metallic rattling on cold start lasting more than 5 seconds warns of impending engine destruction. Typically affected from 100,000–160,000 km.

  Symptoms: Loud metallic rattling on cold start (>5 seconds), check engine light P0008/P0016/P0017, power loss
  2,000–7,000 $
  Ad timing chain 448DT TDV8 SDV8chain tensioner 4.4 TDV8timing chain kit Range Rover 4.4 Diesel
• !! Plastic coolant pipe under intake manifold from 100,000 km

  The plastic coolant crossover pipe running under the intake manifold cracks from embrittlement. Sudden coolant loss threatens — the engine can be overheated before the temperature warning appears. Pre-emptive replacement with aluminium pipes is recommended.

  Symptoms: Sudden coolant loss, overheating warning, steam, in worst case hydrolock
  500–2,500 $
  Ad coolantrohr 448DT TDV8Crossover Pipe 4.4 SDV8coolantleitung Range Rover 4.4 Diesel

+ 2 more engine weaknesses + vehicle weaknesses

3.6-litre V8 diesel with sensitive Siemens piezo injectors. The water-cooled EGR cooler can gradually leak coolant into the charge air cooler over years — until the engine fails catastrophically. High-pressure pump and injectors are the most common cost items. High-quality maintenance is non-negotiable.

• !! Piezo injector failure (often 4 of 8) from 130,000 km

  The Siemens piezo injectors of the 368DT are very sensitive and expensive. Inspections frequently reveal multiple failed injectors (documented: 4 out of 8). New injectors cost approximately €500 each.

  Symptoms: Rough running, individual cylinder fault codes, power loss, increased fuel consumption, limp mode
  1,500–5,000 $
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• !! High-pressure pump failure with system pressure loss from 120,000 km

  The 368DT high-pressure pump is prone to failure. Vehicles enter limp-home mode after 12–15 km of driving. Fault codes for low fuel rail pressure are typical.

  Symptoms: Limp mode after a few kilometres, hard start, fault codes for low fuel rail pressure
  1,000–3,000 $
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• !! EGR cooler leak: coolant into intercooler from 100,000 km

  The water-cooled EGR cooler can pass coolant into the intercooler. Over roughly three years the coolant slowly fills the intercooler until it reaches the turbo and enters the engine, causing severe engine damage.

  Symptoms: Sporadic power loss, white smoke, after years: sudden catastrophic engine failure
  3,000–12,000 $
  Ad EGR radiator 368DT TDV8EGR radiator 3.6 TDV8intercooler Range Rover 3.6 Diesel

+ 2 more engine weaknesses + vehicle weaknesses

Jaguar-developed V8 (4.4L), not a BMW M62 — more robust and longer-lived than its predecessor. Timing chain with plastic guides and VANOS seals need attention over time. Check the PCV system regularly. More reliable than many Land Rover diesels when properly maintained.

• !! Plastic timing chain guide breaks from 120,000 km

  The BMW M62 uses a very long single-row timing chain with plastic guides. The guides can break and shed fragments into the sump. Sunken fragments can block the oil pump pickup — engine damage possible.

  Symptoms: Cold start rattling (chain tensioner), plastic particles in engine oil, check engine light, misfires
  800–4,000 $
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• !! VANOS seals worn: clatter and power loss from 100,000 km

  The VANOS units (BMW variable camshaft timing) deteriorate over time. Seals become porous, the cam phasers clatter and tick. The engine loses power and responsiveness at low RPM.

  Symptoms: Tactile diesel-like clatter from the cylinder head at low RPM, power loss in the lower rev range, P0011/P0021
  200–1,500 $
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• !! Thermostat (105°C) and cooling system failures from 100,000 km

  All M62-equipped L322s were delivered with a 105°C thermostat. The thermostat and coolant hoses are prone to premature wear. Heater hose connectors frequently break.

  Symptoms: Coolant loss, overheating, broken heater connections, coolant warning light
  150–800 $
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+ 1 more engine weaknesses + vehicle weaknesses

Solid 5.0-litre V8 (naturally aspirated, no supercharger). Timing chain and guides are the known weak point from around 130,000 km. Short oil change intervals (max. 8,000 km) significantly reduce the risk. Replace plastic coolant pipes preventively with aluminium items. Character: refined V8 with decent power delivery.

• !! Timing chain guides and tensioners fail from 130,000 km

  The AJ133 5.0L V8 (naturally aspirated) is known for premature wear of the plastic timing chain guides and hydraulic tensioners. The fault typically appears from 120,000–150,000 km. Extended oil change intervals are a frequent contributing factor.

  Symptoms: Rattling/knocking on cold start, P0008/P0016/P0017, engine light, power loss
  3,000–7,000 $
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• !! Plastic coolant pipes become brittle from 110,000 km

  Like the supercharged V8, the naturally aspirated V8 has numerous plastic coolant pipes and fittings that become brittle and crack. Pre-emptive replacement with metal pipes (Euro AMP kit) is strongly recommended.

  Symptoms: Sudden coolant loss, overheating warning, steam from the engine bay
  500–2,500 $
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• !! Ignition coil failure and spark plug wear from 100,000 km

  Ignition coils on the 5.0 V8 tend to fail, often in combination with oil-fouled spark plugs (caused by valve stem seals). Rough running and misfire codes on multiple cylinders simultaneously are typical.

  Symptoms: Rough running, P030X misfire codes, engine light, oil-fouled spark plugs
  400–1,500 $
  Ad ignition coil 508PN 5.0 V8ignition coil kit AJ133 Range Roverspark plug 5.0 V8 Range Rover

+ 1 more engine weaknesses + vehicle weaknesses

4.2-litre V8 supercharged with performance but several critical weaknesses. The coolant pipe under the supercharger can rupture suddenly and cause engine damage — preventive replacement with aluminium pipes is strongly recommended. Supercharger torsion coupling wears from around 90,000 km. Budget for high running costs.

• !! Plastic coolant pipe under supercharger bursts from 100,000 km

  The plastic coolant pipe running behind and under the supercharger cracks from thermal cycling-induced embrittlement. Coolant loss is sudden — by the time the overheating warning appears it is usually too late.

  Symptoms: Sudden coolant loss, overheating warning, steam, engine damage if reaction is delayed
  1,000–6,000 $
  Ad coolantrohr AJ33S 4.2 SCCrossover Pipe Range Rover 4.2 Superchargedcoolantleitung L322 4.2 SC
• !! Supercharger snout: bearings and coupler wear out from 90,000 km

  The Eaton supercharger coupler element — plastic and metal — wears out and gives way. Grinding noises from the supercharger or at idle point to bearing failure. Land Rover has issued a TSB on this subject.

  Symptoms: Grinding or rattling noises from the supercharger, hesitation under acceleration, power loss
  1,500–4,000 $
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• !! Timing chain and guides wear from 130,000 km

  Like the naturally aspirated V8, the 4.2 SC also has timing chains with plastic guides that can wear. Cold start rattling is the typical warning sign. A missed inspection risks a jumped chain.

  Symptoms: Metallic rattling on cold start, check engine light P0008/P0016, power loss
  2,000–7,000 $
  Ad timing chain AJ33S 4.2 SCtiming chainnführung Range Rover 4.2 SuperchargedTiming Chain Kit L322 4.2

+ 1 more engine weaknesses + vehicle weaknesses