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Variant History
Peugeot 308 GTi 1.6 THP Engine History & Specs at a Glance
The Peugeot 308 GTi 1.6 THP is the performance flagship of the 308 range, bringing hot-hatch power to the compact family car. Powered by the Prince engine family - jointly developed by PSA and BMW - the 1.6 THP features twin-scroll turbocharging, direct injection and advanced engine management. Available in 200hp, 250hp and 270hp outputs across two generations, the 308 GTi offers genuine hot-hatch performance with 0-60mph times as low as 5.8 seconds. However, its complexity and well-documented reliability issues - particularly timing chain stretch, high-pressure fuel pump failure and carbon buildup - have made it a significant source of replacement enquiries for owners of the 308 GTi.
2010
First-generation 308 GTi launched with 5FY (EP6DTS) 1.6 THP 200hp, 275 Nm torque, 0-100km/h in 7.7 seconds
2015
Second-generation 308 GTi launched with EP6FDTR 1.6 THP 250hp (246bhp) and 270hp (268bhp) versions
2015
250hp version: 0-60mph in 6.0 seconds, 47mpg combined
2015
270hp version: 0-60mph in 5.8 seconds, 47mpg combined
2017
Production of 308 GTi ends; successor models adopt electrified powertrains
Every 5FY and EP6FDTR engine fitted to the Peugeot 308 GTi 1.6 THP is covered below, with UK rebuilt pricing and known failure points.
The Peugeot 308 GTi 1.6 THP (5FY/EP6FDTR) is a thrilling hot-hatch engine, but its Prince architecture - shared with BMW and Mini - has well-documented weaknesses. Timing chain stretch, high-pressure fuel pump failure, carbon buildup and oil consumption are the primary drivers of replacement enquiries. The EP6FDTR 270hp variant is particularly susceptible to timing chain and HPFP issues due to higher cylinder pressures and temperatures. Every rebuilt Peugeot 308 GTi 1.6 THP engine through EnginesMarket includes upgraded components addressing the original failure points, plus a minimum 12-month unlimited-mileage warranty.
Common failure points and repair options
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Timing Chain Failure
Affected
Peugeot 308 GTi 1.6 THP (5FY, EP6FDTR, 2010-2017)
Typical failure mileage
30,000-65,000 miles (50,000-100,000 km)
Root cause
The Prince engine's timing chain tensioner can lose hydraulic pressure, allowing chain slack to develop. Over time, the chain stretches and the plastic guides wear, leading to rattling on cold start and, in severe cases, chain jump and valve-piston contact. The timing chain can require intervention as frequently as every 30,000 km (18,600 miles). One owner reported timing chain replacement at 58,000 miles and again at 98,000 miles. Cold-start rattle lasting 2-3 seconds indicates tensioner failure.
Repair options
Repair tier
Dealer price
Specialist price
Minor - Timing Chain Kit Replacement
£900-£1,600
£600-£1,100
Full Replacement - Rebuilt 5FY/EP6FDTR Engine
£4,000-£5,500
£1,800-£4,500
Our recommendation
If your Peugeot 308 GTi 1.6 THP exhibits the characteristic cold-start rattle - it will sound worse than a diesel - address it immediately. A timing chain kit replacement is significantly cheaper than a full engine replacement. Once the rattle is constant or accompanied by loss of power, the chain has likely jumped - at that stage, a rebuilt engine with upgraded timing components is the safest option. Regular oil changes with fully synthetic 0W-30 oil are critical to preventing timing chain guide wear.
The Bosch HPFP's internal cam follower wears prematurely, causing metal contamination to circulate through the high-pressure fuel rail and injectors. Symptoms include hard starting, rough idle, misfires and, in severe cases, complete non-start. The HPFP has a reported lifespan as low as 50,000 km (31,000 miles). Early-series engines (pre-2011) are most affected. Fault codes P000A and P000B (VVT system) can also be related.
Repair options
Repair tier
Dealer price
Specialist price
Minor - HPFP & Rail Flush
£500-£750
£320-£480
Full Replacement - Rebuilt 5FY/EP6FDTR Engine
£4,000-£5,500
£1,800-£4,500
Our recommendation
HPFP failure on the Peugeot 308 GTi 1.6 THP is catastrophic if delayed. If diagnostic codes show fuel rail pressure deviation alongside metallic fuel, budget for a full engine replacement immediately - repairing injectors alone will not prevent repeat failure. The 270hp EP6FDTR variant is especially susceptible; HPFP failure is one of the most common reasons for 308 GTi engine replacement.
Direct injection petrol engines do not wash the intake valves with fuel, allowing carbon deposits from the PCV system to accumulate on valve stems and seats. This restricts airflow, causing rough idle, hesitation, reduced power and increased fuel consumption. The 1.6 THP is also known for high oil consumption - one owner reported needing 1 litre of oil every 1,000 miles, which was described as "apparently normal".
Repair options
Repair tier
Dealer price
Specialist price
Minor - Walnut Blast Carbon Cleaning
£400-£700
£250-£500
Full Replacement - Rebuilt 5FY/EP6FDTR Engine
£4,000-£5,500
£1,800-£4,500
Our recommendation
Carbon buildup is a known characteristic of direct injection engines. A professional walnut blast cleaning every 40,000-60,000 miles is a worthwhile preventative measure. If the engine has been running poorly for an extended period, carbon scoring may have damaged cylinder walls - in which case a rebuilt unit is the only reliable fix. Monitor oil consumption closely - if it exceeds 1 litre per 1,000 miles, have the engine inspected.
Don't Let Engine Failure Write Off Your Peugeot 308 GTi
Whether you're dealing with timing chain rattle, HPFP failure, carbon buildup or oil consumption, EngineMarket connects you directly with verified UK Peugeot 308 GTi 1.6 THP specialists who understand these exact failure patterns. Every rebuilt unit features upgraded components to permanently address the root cause, is bench-tested for performance, and comes with a minimum 12-month unlimited mileage warranty. Skip the main dealer premium - compare transparent supply-and-fit quotes from multiple trusted specialists and get back on the road with confidence.
Everything Peugeot 308 GTi 1.6 THP owners usually ask before choosing a rebuilt, reconditioned or used replacement engine.
A rebuilt Peugeot 308 GTi 1.6 THP engine typically costs **£1,800-£4,500** supply-only, depending on power output and supplier. 5FY 200hp units start around **£1,800**, while EP6FDTR 250hp and 270hp units range **£2,200-£4,500**. Used engines start from **£900**. Supply & fit adds **£500-£1,000** labour. Main dealer replacement can exceed **£5,500**. A rebuild for a similar 1.6 THP engine has been quoted at circa **£4,000**.
The most common Peugeot 308 GTi 1.6 THP (5FY/EP6FDTR) engine problems are **timing chain stretch and tensioner failure** causing cold-start rattle (as early as 30,000 km / 18,600 miles), **high-pressure fuel pump (HPFP) failure** causing hard starting and misfires (lifespan as low as 50,000 km), **carbon buildup on intake valves** from direct injection, and **excessive oil consumption** (1 litre per 1,000 miles reported). The EP6FDTR 270hp variant is particularly susceptible to HPFP failure and timing chain guide wear. The timing chain has been known to require replacement twice - at 58,000 and 98,000 miles.
Timing chain rattle on cold start (common from 18,600-65,000 miles)
Replacing a Peugeot 308 GTi 1.6 THP engine is worthwhile if the vehicle is otherwise sound and the replacement cost stays below the vehicle's value. With 308 GTi values typically **£4,000-£14,000**, a rebuilt engine at **£1,800-£4,500** represents a significant investment but often makes sense for well-maintained examples. When a timing chain fails causing piston and valve damage, replacing the engine is often the easiest and cheapest option. For sub-£4,000 examples, a used engine from £900 may be more economical. With replacement costs reaching **£4,000-£5,500** when major internal damage occurs, specialist rebuilt units offer competitive value.
With proper maintenance, the Peugeot 308 GTi 1.6 THP (5FY/EP6FDTR) engine can reach **100,000-130,000 miles**. However, HPFP failure can appear as early as **31,000 miles**, and timing chain issues from **18,600-65,000 miles**. Regular oil changes with correct 0W-30 fully synthetic oil, timely timing chain replacement and HPFP monitoring are essential for longevity. The engine lifespan is rated at approximately **200,000 km (124,000 miles)**.
Timing chain inspection recommended from 30,000 miles
HPFP failure common from 31,000 miles
Carbon cleaning recommended every 40,000-60,000 miles
Regular oil changes with 0W-30 fully synthetic critical for chain health
The first-generation 308 GTi (2010-2014) uses the **5FY (EP6DTS)** engine producing **200hp** and 240 Nm of torque. The second-generation 308 GTi (2015-2017) uses the **EP6FDTR** engine in two states of tune: **250hp** (246bhp) and **270hp** (268bhp). Both 250hp and 270hp versions share the same 1.6L architecture, but the 270hp has a higher-output calibration and more aggressive engine mapping. The 270hp version offers 0-60mph in 5.8 seconds versus 6.0 seconds for the 250hp. The 270hp is also more susceptible to HPFP failure and timing chain guide wear due to higher cylinder pressures.
5FY 200hp: 200hp, first generation (2010-2014)
EP6FDTR 250hp: 250hp, second generation (2015-2017)
EP6FDTR 270hp: 270hp, second generation (2015-2017)
Your Peugeot 308 GTi 1.6 THP engine code is **5FY (EP6DTS)** for 200hp models or **EP6FDTR** for 250hp and 270hp models. It appears on the VIN plate under the bonnet, stamped on the engine block, or on your V5C registration document section D.2. Enter your reg above for instant verification.
Comparing Peugeot 308 GTi 1.6 THP engine quotes is completely free and carries no obligation. Enter your registration above, tell us your 5FY or EP6FDTR engine code, and receive transparent, fixed-price quotes from our vetted UK specialists within hours. Whether you need a used engine for a quick fix or a fully rebuilt 5FY or EP6FDTR unit with upgraded HPFP and timing components and a 12-month warranty, we'll match you with the right supplier for your budget.