XJ X350 / X358 · 2003–2009

Jaguar XJ 4.2 V8 XJ X350 / X358 · 298 hp (2003 to 2009)

The Jaguar XJ 4.2 V8 of the XJ X350 / X358 generation uses the AJ34 4.2 V8 petrol engine with 298 hp.

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Technical specifications

Fuel: Petrol
Power: 298 PS / 219 kW
Displacement: 4 196 cm³
Cylinders: 8
Engine code: AJ34 4.2 V8
Period covered: 2003–2009
Documented market: Europe

Transmission

Automatic · 6 speeds

Figures apply to the cited configuration and market; equipment and transmissions may vary by production date.

Specification source : [1] AutoKarnet

This version

298 hp (219 kW), rear-wheel drive, 6-speed automatic. Built from 2003 to 2009.

AutoKarnet advice

In the range

It is the only petrol version of this generation. The AJ34 4.2 V8 engine is also fitted to: Jaguar XK (XK X100), Jaguar XK (XK X150).

AutoKarnet advice

Maintenance and records

Oil and filter change

Typical interval: 26,000 km or 12 months, whichever comes first.

26 000 km

12 months

JLR STJLR.03.5005 / STJLR.03.5007 / Ford WSS-M2C913 — Engine, model year and severe use may require a shorter interval; do not exceed the service warning. The listed oil approvals are not interchangeable: check the one for the engine.

Source [1]

Brake fluid

Brake fluid: generally replaced every 2 years; inspect the brakes at each service.

24 months

Brake fluid: generally replaced every 2 years; inspect the brakes at each service.

Source [1]

Questions about this version (2)

Which engine is in the Jaguar XJ 4.2 V8 XJ X350 / X358?

The AJ34 4.2 V8 petrol engine (4 196 cc), 298 hp (219 kW).

AutoKarnet advice

Which oil for the Jaguar XJ 4.2 V8?

A JLR STJLR.03.5005 / STJLR.03.5007 / Ford WSS-M2C913-approved oil suited to the AJ34 4.2 V8 engine.

AutoKarnet advice

Documentary sources

[1] Rédaction AutoKarnet
AutoKarnet · FR · Europe · Synthèse éditoriale AutoKarnet · Accessed 09/10/2026