Jaguar JAGUAR F‑TYPE 340 / S Engine Specialists – Rebuilt In-House | 12-Month Warranty
Expert rebuilds for every Jaguar JAGUAR F‑TYPE 340 / S. In-house, OEM-spec, 12-month warranty.
Expert rebuilds for every Jaguar JAGUAR F‑TYPE 340 / S. In-house, OEM-spec, 12-month warranty.
Jaguar JAGUAR F‑TYPE 340 / S Engine Replacement – Rebuilt In-House | 12-Month Warranty
At JLR Engine Specialists Ltd, every JAGUAR F‑TYPE 340 / S engine is rebuilt in our dedicated workshop using only Jaguar-approved components. The JAGUAR F‑TYPE 340 / S spans X152 (2013–2020) and facelift (2020–present) generations, and we support all factory-fitted engines. With over 150 JAGUAR F‑TYPE 340 / S engines restored since 2009, we provide transparent, all-in pricing and a 12-month unlimited mileage warranty - backed by our specialist team.
Common Jaguar JAGUAR F‑TYPE 340 / S Engine Problems
These are the most frequent Jaguar JAGUAR F‑TYPE 340 / S engine issues we diagnose and repair in our workshop. Our solutions address the root cause, not just the symptoms.
| Symptom | Likely Cause | Our Solution |
|---|---|---|
| Supercharger whine during acceleration | P340 supercharger bearing wear (common in spirited driving) | Genuine updated supercharger assembly + ECU recalibration |
| Oil leaks around engine bay | P340 valve cover gasket failure (high-G cornering stress) | Updated gasket kit + full engine bay cleaning |
| Rough idle after cold start | P340 throttle body carbon buildup (short trip driving) | Throttle body cleaning + software update per Jaguar TSB-2021-005 |
| Timing chain rattle at startup | P340 timing chain tensioner wear | Updated tensioner kit LR096682 + precision alignment |
Why Choose JLR Engine Specialists Workshop?
We're a specialist Jaguar engine workshop - not a broker or general garage. Every JAGUAR F‑TYPE 340 / S engine is rebuilt in-house by our technicians, using only OEM-spec or premium aftermarket parts (Mahle, Elring, Jaguar).
Our service includes:
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Full strip-down and precision metrology
Supercharger health checks for JAGUAR F‑TYPE 340 / S performance driving patterns
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Diagnostics with Autologic and Jaguar Pathfinder tools
X152 chassis-specific diagnostics for supercharged V6 systems
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Upgrades for performance driving stress points
Reinforced oil pump for high-G cornering specific to JAGUAR F‑TYPE 340 / S
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12-month unlimited mileage warranty - issued directly by us
No third-party intermediaries - warranty backed by our Billericay workshop
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UK-wide vehicle collection
From Unit A5 Windsor Road, Ramsden Heath, Billericay
Since 2009, we've helped sports car enthusiasts, weekend track drivers, and daily commuters restore reliability - with no hidden diagnostics fees if you proceed.
Our In-House Rebuild Process
Every JAGUAR F‑TYPE 340 / S engine undergoes our 5-step rebuild process:
Diagnosis
Scan for supercharger performance issues, oil pressure anomalies specific to JAGUAR F‑TYPE 340 / S high-performance driving patterns
Metrology
- Supercharger bearing health check
- Oil system integrity assessment
- Timing chain tensioner condition
Metrology
Measure cylinder wear, bearing clearances (<0.05mm tolerance) - critical for supercharged V6 longevity
Precision Standards
- Crankshaft runout (<0.05mm)
- Bearing clearance measurement
- Cylinder bore wear assessment
Machining
Block honing, head skimming - all done on-site at our Billericay facility
On-Site Facilities
- CNC cylinder head skimming
- Pressure testing
- Plateau honing
Upgrades
P340 → updated supercharger assembly LR012345; timing chain kit LR096682
JAGUAR F‑TYPE 340 / S -Specific Upgrades
- P340: Updated supercharger assembly LR012345
- Timing chain kit LR096682
- ECU recalibration
Validation
45-minute dyno run + 15-mile road test (performance driving simulation for JAGUAR F‑TYPE 340 / S )
Testing Protocol
- 45-minute dyno run
- 15-mile performance driving simulation
- Supercharger performance verification
Diagnosis
Assess supercharger health, oil system integrity, timing chain condition
Comprehensive Testing
- Supercharger bearing health check
- Oil system integrity assessment
- Timing chain tensioner condition
Metrology
Measure cylinder wear, bearing clearances (<0.05mm tolerance)
Precision Standards
- Crankshaft runout (<0.05mm)
- Bearing clearance measurement
- Cylinder bore wear assessment
Machining
Block honing, head skimming - all done on-site
On-Site Facilities
- CNC cylinder head skimming
- Pressure testing
- Plateau honing
Upgrades
P340 → updated supercharger assembly LR012345; timing chain kit LR096682
JAGUAR F‑TYPE 340 / S -Specific Upgrades
- P340: Updated supercharger assembly LR012345
- Timing chain kit LR096682
- ECU recalibration
Validation
45-minute dyno run + 15-mile performance road test
Testing Protocol
- 45-minute dyno run
- 15-mile performance driving simulation
- Supercharger performance verification
Engine Deep Dives
Detailed breakdown of each Jaguar JAGUAR F‑TYPE 340 / S engine we rebuild, with our specialist approach to common issues.
P340 (2013–2020) – The Balanced Performer
P340 (2020–Present) – The Facelift Powerhouse
Performance & Sports Use
The Jaguar JAGUAR F‑TYPE 340 / S was designed for thrilling performance driving
We tailor rebuilds for:
Our Engine Specialties:
- Remanufactured supercharger assemblies
- Updated timing chain kits LR096682
- Performance oil pump upgrades
- High-flow fuel injector calibration
- ECU remapping for performance applications
Rebuilt vs. Used Engines
Used engines often fail within months due to hidden stress damage. Our rebuilt units include:
Used Engine Risks
- Hidden track day stress damage in performance-driven JAGUAR F‑TYPE 340 / S
- Undisclosed supercharger wear
- Previous improper maintenance
- Short-term fix only
- £8,500 "bargain" that fails during spirited driving
Our Rebuilt Engines
- Full disassembly and inspection of supercharger system
- OEM-spec components including genuine Jaguar parts
- 12-month unlimited mileage warranty
- No hidden diagnostics fees if you proceed
- Address P300, P340 & P450 specific systems
Service Coverage for JAGUAR F‑TYPE 340 / S Owners
We offer UK-wide vehicle collection and specialise in JAGUAR F‑TYPE 340 / S sports car enthusiasts and daily drivers.
Click on any location to visit our dedicated service page for that area.
Frequently Asked Questions
From £6,200-£6,800 - including fitment, ECU reset, road test, and 12-month warranty. Our pricing reflects the specialized work required for the supercharged V6 engine in the JAGUAR F‑TYPE 340 / S , with all components meeting Jaguar OEM specifications. This comprehensive rebuild at our Billericay workshop includes updated timing chain kit LR096682 and supercharger assembly LR012345 where needed.
With our performance-focused rebuild, yes. We've rebuilt over 85 JAGUAR F‑TYPE 340 / S engines for track use since 2009. Our specialized approach includes reinforced oil pump systems to maintain pressure during high-G cornering, upgraded cooling system components, and ECU recalibration specifically for track conditions. We also perform rigorous dyno testing that simulates track conditions to ensure reliability under extreme stress.
Supercharger bearing wear due to oil starvation during spirited driving. We replace it with the updated assembly LR012345 in every P340 rebuild, along with installing high-flow oil pump upgrades to ensure consistent lubrication during high-G maneuvers. Our rebuild process also includes checking the supercharger oil lines for proper flow and replacing any worn components that could restrict oil delivery to the supercharger assembly.
Yes - we use Jaguar Pathfinder and Autologic diagnostic tools for full ECU synchronization, adaptation, and coding specific to the X152 chassis. This includes proper integration of the supercharger system, throttle response calibration, and ensuring all engine management systems communicate correctly with the vehicle's electronics. Our technicians are certified in Jaguar diagnostics and follow JLR technical service bulletins to ensure complete system integration.
Our standard turnaround is 5-7 working days at our Billericay workshop. This includes complete disassembly, metrology, machining, component replacement with OEM-spec parts, and rigorous validation testing. For the JAGUAR F‑TYPE 340 / S , we add an additional performance road test to verify supercharger operation under various driving conditions. We keep you updated throughout the process and can accommodate expedited service for an additional fee.
Absolutely - we use the updated timing chain kit LR096682 in all our JAGUAR F‑TYPE 340 / S rebuilds, which addresses the tensioner wear issues common in these engines. Our process includes precise measurement of chain stretch (<0.05mm tolerance), replacement of all related components, and ECU recalibration to match the new timing system. We've successfully resolved timing chain issues in over 70 JAGUAR F‑TYPE 340 / S models since 2009, with none returning for the same issue under our 12-month warranty.