Peugeot 508 1.6 THP Engine ReplacementCompare Prices & Get Quotes
Get quotes today from trusted UK Peugeot 508 1.6 THP engine specialists. Compare prices on reconditioned, rebuilt and used 1.6 THP engines - supply & fit available nationwide.
Supply & Fit Available
12-Month Warranty
Nationwide Delivery
100+ Suppliers
From £1,900 to £3,300
Used from £550 · Reconditioned from £1,100 · Common codes: EP6DT, EP6CDT, 5FX, 5FV, RFJ
From £550
Tested, bare/short engine
From £1,100
Rod bearings addressed, tested
From quote
Upgraded bearings, full teardown, revised valvetrain
Secure enquiry - no spam, no pressure. Genuine quotes only from vetted UK Peugeot 508 1.6 THP specialists.
3 Simple Steps3 Simple Stepsto Finding the Best Peugeot 508 1.6 THP Replacement Engineto Finding the Best Peugeot 508 1.6 THP Replacement Engine
Most replacements completed within 3-5 days.
Variant HistoryPeugeot 508 1.6 THP - Engine History & Specs at a Glance
The 1.6 THP (Turbo High Pressure) arrived with the first-generation Peugeot 508 in 2010 as the performance-oriented petrol option. Based on the Prince engine family co-developed with BMW, it delivered responsive turbocharged performance across 150hp, 156hp and 165hp variants before being replaced by the PureTech family on the second-generation 508.
Variant HistoryPeugeot 508 1.6 THP - Engine History & Specs at a Glance
The 1.6 THP (Turbo High Pressure) arrived with the first-generation Peugeot 508 in 2010 as the performance-oriented petrol option. Based on the Prince engine family co-developed with BMW, it delivered responsive turbocharged performance across 150hp, 156hp and 165hp variants before being replaced by the PureTech family on the second-generation 508.
Peugeot 508 1.6 THP
Fuel TypePetrol
Engine Size Range1.6L
Power Output Range150-202hp across the variant's historyEngine History Timeline
EP6DT (1.6L 150hp) launched with the original Gen 1 508 saloon
EP6DT (1.6L 156hp) introduced as the core THP variant for GT and GT Line trims
EP6CDT (1.6L 163hp/165hp) added as a higher-output option
Facelift styling with minor calibration updates; THP continues
EP6DT (1.6L 202hp) introduced as the range-topping petrol option
1.6 THP discontinued on Gen 2 508 replaced by 1.6 PureTech
Key Specs Snapshot
Fuel TypePetrolEngine Size Range1.6LPower Output Range150-202hp across the variant's historyYears Produced2010-2018Every engine fitted to the Peugeot 508 1.6 THP is covered below, with UK rebuilt pricing and known failure points.
Peugeot 508 1.6 THP Engine Codes - Specifications & Replacement CostPeugeot 508 1.6 THP Engine Codes - Specifications & Replacement Cost
1.6L Turbo Petrol (2010-2018)
Power Output150-156hpYears Fitted2010-2018
Compatible Trim Levels
- GT 1.6 THP
- GT Line 1.6 THP
- Allure 1.6 THP
- First Edition 1.6 THP
- SW GT 1.6 THP
Find your exact engine code, specs and UK replacement cost guide.
Used
Tested, ready-to-fit engine
£550-£1,100
Reconditioned
Addressed known issues, tested
£1,100-£1,800
Rebuilt
Full teardown, upgraded internals
£1,900-£3,300
Common Failure
Timing chain tensioner failure is the most documented issue on EP6DT units, typically appearing between 50,000-75,000 miles (80,000-120,000 km). Cold-start rattle is the earliest warning sign; if left unaddressed, chain failure can cause catastrophic valve-to-piston contact on this interference engine.
The Peugeot 508 1.6 THP is a responsive turbocharged petrol engine, but timing chain tensioner failure, turbocharger oil leaks and increased oil consumption dominate replacement enquiries - the early THP generation is widely regarded as the most problematic petrol engine fitted to the 508. Every rebuilt engine supplied through EnginesMarket includes upgraded components designed to address the original failure point - plus a minimum 12-month unlimited-mileage warranty. Use the problem groups below to compare repair costs versus replacement value for your specific 1.6 THP.
Why EP6DT 1.6 THP Engines Rattle on Cold Start
Affected Vehicles
Peugeot 508 1.6 THP (EP6DT/EP6CDT, 2010-2018)
Typical Failure Mileage
50,000-75,000 miles (80,000-120,000 km)
Root Cause
The hydraulic timing chain tensioner loses pressure, allowing chain slack. This causes a characteristic rattling noise on cold starts lasting 2-3 seconds. On this interference-design engine, a snapped chain means valve-to-piston contact and catastrophic engine damage.
Why It Happens
The hydraulic timing chain tensioner loses pressure, allowing chain slack. This causes a characteristic rattling noise on cold starts lasting 2-3 seconds. On this interference-design engine, a snapped chain means valve-to-piston contact and catastrophic engine damage.
Dealer (parts + labour)
£1,800-£2,600
Specialist (parts + labour)
£1,100-£1,700
What it involves
Replace tensioner, guides, chain; reset ECU adaptation
Suitability
Viable if caught before noise worsens; prevents catastrophic failure
1 - 2 daysDealer (parts + labour)
£2,900-£4,200
Specialist (parts + labour)
£1,800-£2,800
What it involves
Remove head to inspect valves; replace damaged components + full chain system
Suitability
Appropriate if early valve contact suspected; adds cost uncertainty
1 - 2 daysDealer (parts + labour)
£4,500-£6,800
Specialist (parts + labour)
£1,900-£3,300
What it involves
Supply & fit rebuilt EP6DT unit with upgraded tensioner, dyno tested, 12-month warranty
Suitability
Best value when valves damaged or engine has 75k+ miles; eliminates repeat risk
1 - 2 daysAll prices are indicative UK market ranges based on current UK specialist supplier data.| Repair Tier | Dealer (Parts + Labour) | Specialist (Parts + Labour) | What It Involves | Suitability | Estimated Time |
|---|---|---|---|---|---|
 Minor - Preventative Chain Kit Replacement Minor | £1,800-£2,600 | £1,100-£1,700 | Replace tensioner, guides, chain; reset ECU adaptation | Viable if caught before noise worsens; prevents catastrophic failure | 1 - 2 days |
 Intermediate - Cylinder Head Inspection + Chain Kit Best Value | £2,900-£4,200 | £1,800-£2,800 | Remove head to inspect valves; replace damaged components + full chain system | Appropriate if early valve contact suspected; adds cost uncertainty | 1 - 2 days |
Full Replacement - Rebuilt EP6DT with Upgraded Tensioner Best Value | £4,500-£6,800 | £1,900-£3,300 | Supply & fit rebuilt EP6DT unit with upgraded tensioner, dyno tested, 12-month warranty | Best value when valves damaged or engine has 75k+ miles; eliminates repeat risk | 1 - 2 days |
Vehicle Value Check
Vehicle Value Check
A typical Peugeot 508 1.6 THP of 2011-2016 vintage is worth approximately £4,000-£12,000 depending on mileage and condition [INDUSTRY ESTIMATE]. For vehicles worth £4,000-£8,000, a chain kit replacement or used engine typically offers better value than a full rebuilt unit. For vehicles worth over £8,000, a rebuilt engine with upgraded timing components justifies the premium via warranty and reliability. Owners have reported repair bills exceeding £3,500 for timing chain failure on these engines.
Our Recommendation
Our Recommendation
On a Peugeot 508 1.6 THP, preventative chain replacement at the first sign of cold-start rattle is critical and cost-effective. These engines are interference designs - a snapped chain is catastrophic. If rattling is present or a compression test shows valve damage, a rebuilt engine with upgraded tensioner is the safer long-term investment. Regular oil changes every 8,000-10,000 km (5,000-6,000 miles) using fully synthetic 0W-30 oil can help extend timing chain life.
Don't Let Engine Failure Write Off Your Peugeot 508 1.6 THP
From timing chain tensioner failure to turbocharger oil leaks and increased oil consumption, Peugeot 508 1.6 THP engine problems follow predictable patterns - the early THP generation is the most problematic petrol engine fitted to the 508. EnginesMarket makes it simple to compare prices from trusted UK Peugeot 508 1.6 THP specialists for rebuilt, reconditioned and used engines. Every unit includes upgraded components addressing the original failure point, plus a minimum 12-month unlimited-mileage warranty and nationwide delivery. Compare prices today and get back on the road without the main dealer premium.
Compare rebuilt EP6DT Peugeot 508 1.6 THP engine prices
12-Month Minimum
UK Specialists Vetted
Best Price GuidanceImportant Information
Important Information
"All prices are indicative UK market ranges based on historical quote data and repair requests from our network of engine specialists. Dealer pricing is estimated based on published main dealer labour rates and genuine OEM parts pricing. Specialist pricing reflects actual quote data from EnginesMarket's UK network. Actual costs vary depending on damage severity, vehicle condition, variant, and workshop location within the UK. Use our free comparison tool to get tailored quotes for your specific Peugeot 508 1.6 THP. Every engine supplied through EnginesMarket carries a minimum 12-month unlimited mileage warranty - always confirm exact terms with your chosen supplier."
Peugeot 508 1.6 THP Engine ReplacementFrequently Asked Questions
Question 1How much does a Peugeot 508 1.6 THP engine replacement cost in the UK-
A Peugeot 508 1.6 THP replacement engine typically costs £550-£1,200 for a used unit, £1,100-£1,900 for a reconditioned unit, or £1,900-£3,500 for a rebuilt unit with 12-month warranty. Supply & fit labour adds approximately £400-£800.
- Used engines from £550 for higher-mileage EP6DT units
- Rebuilt EP6DT engines average £1,900-£3,300 supply only
- Supply & fit typically adds £400-£800 depending on location
Question 2What are the signs of timing chain failure in a Peugeot 508 1.6 THP-
The most common sign is a rattling noise from the engine on cold start, lasting 2-3 seconds. Other symptoms include rough idling, loss of power, and the engine management light illuminating. If left unaddressed, timing chain failure can cause catastrophic engine damage.
- Cold-start rattle is the earliest and most reliable warning sign
- Chain kit replacement typically costs £1,100-£1,700 from a specialist
- These are interference engines - a snapped chain means valve-to-piston contact
Question 3Is it worth replacing the engine in a Peugeot 508 1.6 THP-
For a 508 1.6 THP worth £4,000-£12,000, replacement is often worthwhile if the rest of the car is in good condition. If the vehicle is worth under £4,000, a used engine or scrapping may be more cost-effective. One owner reported a £3,500 repair bill for timing chain failure on a 1.6 THP.
- Vehicle value check is essential before committing to replacement
- Rebuilt engine with 12-month warranty adds value for long-term ownership
- Specialist pricing is typically 30-40% below main dealer rates
Question 4How long does a Peugeot 508 1.6 THP engine replacement take-
Most Peugeot 508 1.6 THP engines are dispatched within 24-48 hours, with supply & fit installation typically completed within 1-2 working days at approved garages.
- Rebuilt engines usually ready for dispatch within 1-2 days
- Professional installation takes 6-8 hours for experienced mechanics
- Post-fit ECU adaptation and road test add 1-2 hours
Question 5What warranty comes with Peugeot 508 1.6 THP replacement engines-
Rebuilt Peugeot 508 1.6 THP engines include a minimum 12-month unlimited-mileage warranty. Used engines typically carry 3-6 months cover depending on supplier terms. Always verify warranty terms before purchase.
- Rebuilt/remanufactured units: 12-month unlimited mileage standard
- Reconditioned engines: 12-month warranty with possible mileage limits
- Used engines: 3-6 month warranty typical, verify before purchase
Question 6What's the difference between the 1.6 THP and the 1.6 PureTech in the Peugeot 508-
The 1.6 THP (EP6DT/EP6CDT) was fitted to the first-generation 508 (2010-2018) and is known for timing chain tensioner issues, turbocharger oil leaks and increased oil consumption. The 1.6 PureTech (EP6FDT) replaced it on the second-generation 508 (2018 onwards), offering improved reliability, better efficiency, and power outputs of 180hp or 225hp.
- 1.6 THP: Gen 1 only, 2010-2018, known timing chain and turbo issues
- 1.6 PureTech: Gen 2 only, 2018-2024, 180hp or 225hp variants
- Engine codes are not interchangeable between generations
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