Peugeot 207 GTi

The EP6DT engine's timing chain is its most notorious weakness. Pre-November 2011 engines used a tensioner with a soft seal ring that allowed oil pressure to bleed off overnight. This causes the chain to go slack, producing a distinctive rattle on cold start lasting 1-30 seconds. If ignored, the chain can skip teeth or snap, causing catastrophic valve-to-piston contact. The chain, guides, tensioner, and VVT sprockets typically all need replacing together. Parts cost around €200-350, with labor at 5-6 hours. Independent garages charge €800-1,200 total, while Peugeot dealers quote €1,500-2,000. PSA updated the tensioner part in late 2011 but the issue persists to some degree on all EP6DT engines. Typically occurs between 60,000-100,000 km, though some fail earlier with poor oil maintenance.

The high-pressure fuel pump on the EP6DT engine is prone to failure, typically between 80,000-120,000 km. Symptoms include intermittent failure to start (fuel rail not reaching the required 5.0 bar), rough idle, and loss of power. A genuine Peugeot HPFP costs €400-600, while aftermarket alternatives are available from €250. Labor is about 1-1.5 hours. Reconditioned pumps from specialists can be a cost-effective option at around €200-300. Some owners have experienced sudden failures without warning, while others notice gradual starting difficulties first.

Like all direct-injection engines, the EP6DT accumulates carbon deposits on the back of the intake valves because fuel does not wash over them. The PCV system routing oil vapors into the intake manifold accelerates this process. Symptoms develop gradually: rough idle, misfires, reduced power (up to 20% loss), and increased fuel consumption. The issue typically becomes noticeable between 50,000-80,000 km. Walnut blasting is the most effective cleaning method, costing €400-600 at a specialist. Some owners use intake cleaning additives as preventive maintenance, but these only help marginally. This problem will recur every 40,000-60,000 km. Regular spirited driving and shorter oil change intervals help slow the buildup.

The KKK K03 turbocharger can fail due to oil starvation when the oil feed line becomes blocked with carbon deposits. Symptoms include turbo lag, unusual whistling or grinding noises, blue smoke, and loss of power. The exhaust manifold can also develop hairline cracks after 60,000-80,000 km of heavy use, affecting turbo performance. A remanufactured turbo costs €500-800, while a new genuine unit runs €1,000-1,500. Labor is 4-5 hours for removal and installation. Always replace the oil feed pipe when fitting a new turbo, as the blocked feed line is often the root cause. Regular oil changes with quality 5W-30 synthetic oil are essential for turbo longevity.

The Peugeot 207's electric power steering system is a known weak point across all variants, not just the GTi. The EPS motor and its integrated ECU can fail due to internal component breakdown, producing fault codes C1404 and C1414. The steering becomes very heavy and the EPS warning light illuminates. A new unit from Peugeot is expensive (€800-1,200), but remanufacturing services can repair the existing unit for €250-450 with a 24-month warranty. The repair involves replacing internal components with upgraded parts. This issue can occur at any mileage but is more common on cars over 8 years old.

The ABS pump motor and ECU module on the Peugeot 207 commonly fail with fault codes C1380 (pump locked) and C1350 (solenoid valve internal fault). Symptoms include ABS warning light, STOP warning message, loss of speedometer signal, and sometimes simultaneous power steering warnings. A new OEM ABS pump module costs €600-1,200, but remanufactured units are available from €200-400 with lifetime warranties. Specialist repair services can rebuild the existing unit from €200-300. The repair is usually plug-and-play with no additional coding required.

The EP6DT engine uses a plastic thermostat housing that becomes brittle over time due to heat cycling. Hairline cracks develop, allowing coolant to leak and pool on top of the gearbox. This typically becomes apparent after 80,000 km. If not addressed, coolant loss can lead to overheating and head gasket damage. The thermostat housing part costs €100-160, with labor at 2-4 hours depending on accessibility. Total repair cost at an independent garage is €250-400, while Peugeot dealers charge €400-600.

A well-documented Peugeot 207 problem: water enters the engine bay fusebox through deteriorated seals around the washer pump wiring and coolant sensor connections. This causes intermittent and seemingly random electrical faults including malfunctioning wipers, lights, warning lights, and even stalling. The fix involves removing the fusebox, drying it thoroughly, cleaning all connector blades, and resealing with appropriate sealant. If corrosion has damaged the fusebox internals, replacement costs around €120-150 for the part alone. Preventive sealing of the cable entry points is recommended.