Jaguar S-Type X200Saloon1999–2008Every engine fitted to the S-Type X200 - from the 3.0-litre AJ-V6 to the 4.0-litre V8, the supercharged 4.2 S-Type R, and the PSA-developed 2.7-litre diesel. Real UK costs, honest failure data, and Jaguar's Ford-era revival. Backed by 70+ real UK X200 enquiries in 2025 [EM-VERIFIED].
70+X200 Enquiries (2025)EM-VERIFIEDSaloon
8Engine Codes
Part ofEngine Finders
Every engine fitted to the S-Type X200 specifically - from the launch 3.0 V6 and 4.0 V8 to the later 2.5 V6, 4.2 V8, supercharged S-Type R and the 2.7 diesel.
Overview
The S-Type (project code X200) marked Jaguar's return to the mid-size executive sector, launched at the 1998 British International Motor Show and entering UK sales in 1999.
Built at Castle Bromwich, it was the first all-new saloon introduced after Ford's 1989 takeover. The engine range launched with Jaguar's AJ-V6 (3.0 litres) and AJ-V8 (4.0 litres). A 2002 revision brought a 2.5-litre V6 and replaced the 4.0 with a 4.2-litre V8; the supercharged 4.2 S-Type R followed. A 2004 facelift added a 2.7-litre diesel developed with PSA, and a final 2007 revision brought further updates before the XF replaced it in 2008.
Key Facts
Platform
Ford DEW98 (shared with Lincoln LS)
Predecessor
N/A (return to segment)
Successor
Jaguar XF (X250)
Sibling body styles in this generation
N/A - X200 is the sole body style
Market Intelligence
The S-Type X200 generated 70 real UK engine enquiries in 2025 [EM-VERIFIED], concentrated on the 3.0 V6 and 2.7 diesel as these Ford-era Jaguars enter affordable-classic territory.
Best Petrol Overall
AJ-V6 3.0L - 3.0 V6
“The 3.0-litre AJ-V6 is the most common S-Type engine and the one to trust - smooth, reliable and well-supported. It's the engine that defined the X200's driving character.”
Who it's for: buyers who want the classic S-Type experience without V8 complexity.
Highest Risk
AJD 2.7L V6 Diesel
“The 2.7 diesel is a PSA-Ford joint venture engine - the same unit used in Land Rover and Peugeot/Citroën products. Known for injector, EGR and turbo issues; it's the most complex engine in the X200 range.”
Who it's for: buyers who want diesel economy and are prepared for specialist maintenance.
Most Expensive Failure
AJ8FT Supercharged 4.2L - S-Type R
“Supercharger rebuilds, cooling system failures and timing chain work on the 4.2 SC can run into thousands. This is the most expensive S-Type to maintain - but also the most rewarding.”
Who it's for: enthusiasts who want 400bhp and are ready for the bills that come with it.
Best Value
AJ-V6 3.0L
“The most common X200 engine by far, with cheap parts, nationwide specialist coverage, and a well-understood failure profile. A £2,500–£4,500 recon makes financial sense against a £1,500–£5,500 vehicle.”
Who it's for: buyers who want the most cost-effective S-Type ownership.
Best Petrol Overall
AJ-V6 3.0L - 3.0 V6
“The 3.0-litre AJ-V6 is the most common S-Type engine and the one to trust - smooth, reliable and well-supported. It's the engine that defined the X200's driving character.”
Who it's for: buyers who want the classic S-Type experience without V8 complexity.
Highest Risk
AJD 2.7L V6 Diesel
“The 2.7 diesel is a PSA-Ford joint venture engine - the same unit used in Land Rover and Peugeot/Citroën products. Known for injector, EGR and turbo issues; it's the most complex engine in the X200 range.”
Who it's for: buyers who want diesel economy and are prepared for specialist maintenance.
Most Expensive Failure
AJ8FT Supercharged 4.2L - S-Type R
“Supercharger rebuilds, cooling system failures and timing chain work on the 4.2 SC can run into thousands. This is the most expensive S-Type to maintain - but also the most rewarding.”
Who it's for: enthusiasts who want 400bhp and are ready for the bills that come with it.
Best Value
AJ-V6 3.0L
“The most common X200 engine by far, with cheap parts, nationwide specialist coverage, and a well-understood failure profile. A £2,500–£4,500 recon makes financial sense against a £1,500–£5,500 vehicle.”
Who it's for: buyers who want the most cost-effective S-Type ownership.
Most Overlooked
AJ25 2.5L V6
“The 2.5 V6 is rarer than the 3.0 but offers similar reliability with slightly better economy. It's often overlooked by buyers chasing the bigger engines - but it's a genuinely solid choice.”
Who it's for: buyers who want the S-Type experience with lower running costs.
The X200 rule
A £2,500–£4,500 3.0 V6 recon against a £1,500–£5,500 S-Type sits at 45–300% of the car's value. On a sub-£2,500 high-mileage example, that brushes our 60% Jaguar threshold - we'll honestly tell you to walk away. Against a well-kept £4,000+ example, the same recon drops to a routine 63–100% - assess carefully. Value the car first.
3.0/2.5
V6 Thermostat Housing & Coolant Leaks
Affected models:
S-Type 2.5 V6, 3.0 V6 (1999–2008).
Typical failure mileage:
80,000–150,000 miles.
Root cause:
The plastic thermostat housing can crack with age and heat cycling; coolant leaks are the most common V6 failure. The engine is otherwise robust - this is the main weak point.
Tiered Cost Table
Preventative (Repair)
Dealer
Specialist
£500–£900
£300–£700
Catastrophic (Replacement)
Dealer
Specialist
£3,500–£5,500
£2,500–£4,500
Our Recommendation
On any high-mileage V6 S-Type, inspect the thermostat housing for cracks and check for coolant loss. A £300–£700 preventative repair is cheaper than the £2,500+ replacement that follows an overheating failure.
4.0
V8 Timing Chain Tensioner Wear
Affected models:
S-Type 4.0 V8 (1999–2002).
Typical failure mileage:
80,000–130,000 miles.
Root cause:
Early AJ-V8 engines suffer from timing chain tensioner wear - a well-documented issue on the 4.0-litre unit. Rattle on startup is the classic early warning. The 4.2-litre that replaced it in 2002 is improved.
Tiered Cost Table
Preventative (Repair)
Dealer
Specialist
£1,200–£2,200
£800–£1,600
Catastrophic (Replacement)
Dealer
Specialist
£4,500–£7,500
£3,500–£6,500
Our Recommendation
If your 4.0 V8 S-Type has no documented chain history, treat it as a priority inspection - £800–£1,600 now is far cheaper than the £3,500+ replacement that follows a failure. Cold-start rattle is the warning sign to watch for.
2.7
Diesel Injector & EGR Failure
Affected models:
S-Type 2.7 D (2004–2007).
Typical failure mileage:
60,000–120,000 miles.
Root cause:
The 2.7-litre PSA-Ford diesel (AJD/AJTDV6) is known for injector failure, EGR clogging and turbocharger issues. It's a complex engine that requires specialist attention - the same unit used in Land Rover and Peugeot/Citroën products.
Tiered Cost Table
Preventative (Repair)
Dealer
Specialist
£800–£1,800
£600–£1,500
Catastrophic (Replacement)
Dealer
Specialist
£4,500–£7,000
£3,500–£5,800
Our Recommendation
The 2.7 diesel is the most complex engine in the X200 range - regular servicing and early intervention are essential. At the first sign of rough running or smoke, get it inspected by a specialist who knows this PSA-Ford unit.
No Generation variance from the Engine Page baseline - no dedicated Engine Pages exist for these families yet, so baseline figures are drawn from the EM_Proprietary_Data Table A. Labour hours estimated at 10–14 hours for V6 and diesel engines, 12–16 for V8s, and 14–18 for the supercharged V8 due to additional complexity.
Scope note: All variants listed are S-Type X200 only. The S-Type R is the supercharged 4.2-litre V8 performance flagship. The 4.0 V8 was produced 1999–2002; the 4.2 V8 replaced it from 2002. The 2.5 V6 was introduced in 2002. The 2.7 diesel joined in 2004.
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,300
reconditioned, supply only
[JAG-QUOTE]
Most Common Failures
Live FeedJaguar S-Type 3.0 V6
AJ-V6
4
enquiries
Jaguar S-Type 2.7 D
AJD
3
enquiries
Jaguar S-Type R
AJ8FT SC
2
enquiries
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,300
reconditioned, supply only
[JAG-QUOTE]
Most Common Failures
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,300
reconditioned, supply only
[JAG-QUOTE]
Most Common Failures
Scope note: All variants listed are S-Type X200 only. The S-Type R is the supercharged 4.2-litre V8 performance flagship. The 4.0 V8 was produced 1999–2002; the 4.2 V8 replaced it from 2002. The 2.5 V6 was introduced in 2002. The 2.7 diesel joined in 2004.
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,300
reconditioned, supply only
[JAG-QUOTE]
Most Common Failures
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,300
reconditioned, supply only
[JAG-QUOTE]
Most Common Failures
Most Requested Engines (2025)
Most Requested Variants
Average Replacement Cost
£4,300
reconditioned, supply only
[JAG-QUOTE]
Most Common Failures
Live FeedJaguar S-Type 3.0 V6
AJ-V6
4
enquiries
Jaguar S-Type 2.7 D
AJD
3
enquiries
Jaguar S-Type R
AJ8FT SC
2
enquiries
Trusted X200 Engine Suppliers
every garage and engine rebuilder in our network is vetted, rated and reviewed by real S-Type owners, as part of the Engine Finders network.
Compare S-Type Engine Replacement Companies
see prices, warranty terms and supply & fit options side-by-side before you commit.
UK Engine Replacement Services for X200
covering every variant from 2.5 V6 to S-Type R, with supply-only or full supply & fit available nationwide.
Find the best Jaguar S-Type X200 engine replacement UK drivers rely on. Compare real prices from trusted specialists on EnginesMarket today and get back on the road with confidence.
Compare Jaguar S-Type X200 Engine Prices on EnginesMarket