5.0 V8 & 5.0 V8 Supercharged: Jaguar AJ133

The 2010 facelift brought Jaguar's all-new 5.0-litre AJ133 with direct injection?Direct injection sprays fuel straight into the cylinder at high pressure rather than into the intake port, more power and efficiency, but it can lead to carbon build-up on the intake valves over time.. Naturally aspirated it makes 276 kW; supercharged, a mighty 375 kW. More power and no worse economy than before, but the early engines have a well-known timing-chain weakness you must check.

Jaguar AJ133 5.0 V8 engine from a Range Rover L322

Jaguar AJ133 5.0 V8, the 2010-2012 petrol · engine photo

ENGINE QUICK FACTS

Engine code	Jaguar AJ133
Type	5.0 V8 (NA & S/C)
Power	276 / 375 kW
Torque	510 / 625 Nm
0-100 km/h (MY2011)	7.6 / 6.2 s
Years	2010-2012
Gearbox (MY2011)	ZF 6HP28
Verdict	Mighty; watch timing chain

WATCH OUT 2010 to early-2012 5.0 engines (both NA and S/C) can suffer timing-chain tensioner and guide wear, dependent on oil-change history. Land Rover introduced revised chain parts at a specific 2012 VIN. Do not buy a 2010-2012 5.0 unless the updated chain components are fitted or you have budgeted for them.

AT A GLANCE Reliability: ●●●○○ chain caveat · Performance: ●●●●● (S/C) very fast · Running cost: high

Strengths	Weaknesses
+ Strong power, efficient DI engine	– Early timing-chain tensioner wear
+ Newest interior, electronics, dash	– Complex high-pressure fuel system
+ S/C version is seriously rapid	– DI carbon build-up over high miles

Specifications

Engine code	AJ133 (LR "LR-V8 Petrol")
Configuration	90° V8, direct injection; NA or supercharged
Displacement	5,000 cc
Bore × stroke	92.5 mm × 93.0 mm
Power (NA)	approx. 276 kW @ 6,500 rpm
Torque (NA)	approx. 510 Nm @ 3,500 rpm
Power (S/C)	approx. 375 kW @ 6,000 rpm
Torque (S/C)	approx. 625 Nm @ 2,500 rpm
Gearbox (MY2011)	ZF 6HP28 6-speed automatic (NA and Supercharged)
Years in L322	2010-2012

Performance & economy

Manufacturer / period figures; real-world economy is typically lower. Petrols were often LPG-converted to cut fuel costs.

0-100 km/h	NA: 7.6 sec · S/C: 6.2 sec
Top speed (MY2011)	NA: 210 · S/C: 225 km/h
Economy	NA: ~24.2 · S/C: ~12.4 l/100km
CO₂ emissions	~299-348 g/km
Kerb weight	~2,550-2,600 kg
Bore × stroke	92.5 mm × 93.0 mm
Torque (NA)	510 Nm @ 3,500
Torque (S/C)	625 Nm @ 2,500

Power vs the L322 range

This engine	375 kW
Range span	130 kW (Td6) to 375 kW (5.0 S/C)

Design & technology

The AJ133 is a clean-sheet, all-aluminium V8 with spray-guided direct injection, shared with Jaguar's XF, XK and XFR/XKR. The supercharged version uses a roots-type blower for 375 kW. The switch to direct injection gives more power and efficiency, at the cost of intake-valve carbon build-up over very high mileage and a costlier high-pressure fuel system.

Performance

The naturally aspirated 5.0 (276 kW) is brisk; the supercharged (375 kW) is properly fast for a 2.5-tonne SUV, with Land Rover quoting 5.9 seconds to 60 mph for the MY2011 supercharged model. For MY2011, both petrol variants use the ZF 6HP28 six-speed automatic.

Reliability

Timing-chain concerns need to be assessed for the exact engine and repair history. Do not infer an affected build range, revised-parts cutoff or required repair from the model year alone. The MY2011 transmission specification does not establish reliability of the engine or electronics.

Common faults to check

Issue	Symptom & notes
Timing chain tensioner/guides	Rattle, especially cold start; the key check on any 2010-2012 5.0.
High-pressure fuel pump	DI system is costlier; watch for fuelling faults.
Intake carbon (DI)	Build-up over high mileage; de-carbon if rough.
Supercharger (S/C)	As 4.2 S/C, coupler/intercooler upkeep.
Service history	Oil-change record is decisive for chain health.

Maintenance notes

Confirm the applicable oil specification and service schedule, and investigate chain symptoms using the correct engine documentation.
For claimed timing-chain repairs, check the invoice against the applicable bulletin. JLR SSM71893 refers AJ133 repairs to LTB00474 version 2; confirm the car's applicability rather than assuming all cars need the same work.
Budget for the high-pressure fuel system and possible de-carbon at high miles.
On S/C cars, maintain the supercharger?supercharger: A belt-driven air compressor that forces more air into the engine for big extra power, with no turbo lag. and intercooler circuit.

Verdict

VERDICT The most powerful and modern L322 petrols, with the best interior and electronics. The timing-chain issue on early cars is the deal-breaker to check: a 5.0 with updated chain parts and a full oil-change history is a superb car; one without is a gamble.

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