Peugeot RCZ T75

Powerful PSA diesel (2.0L HDi, 100-133 kW) for mid-size cars and SUVs. Common-rail with turbo, later versions as BlueHDi with SCR catalyst and AdBlue. Fundamentally robust and long-lasting with high torque. Injectors and the turbocharger are the main wear items. Timing belt with water pump should be replaced at least every 160,000 km. DPF regeneration becomes problematic with short-trip driving patterns.

• !! Timing belt snap caused by defective water pump from 90,000 km

  The plastic impeller of the water pump can disintegrate from as early as 50,000 km. Fragments enter the timing belt drive and cause the belt to snap with subsequent total engine destruction.

  Symptoms: Coolant temperature rises unusually, coolant loss without visible leak, faint grinding or squealing from the timing belt drive, sudden engine shutdown when belt snaps
  600–900 $
  Ad timing belt kit DW10 water pumpSKF VKMC 03259water pump 2.0 HDi
• !! Dual-mass flywheel wear from 130,000 km

  The dual-mass flywheel wears prematurely, especially on the 107 hp variant. Oil dilution from DPF regeneration accelerates wear. The clutch should always be renewed at the same time.

  Symptoms: Squealing or clattering when starting and stopping the engine, pronounced vibrations at idle, juddering when pulling away, knocking at low revs under load
  1,000–1,800 $
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• !! Leaking injectors causing oil dilution from 140,000 km

  Leaking injectors allow diesel into the engine oil, drastically reducing its lubricity. The rising oil level is often overlooked. This can cause piston and bearing damage.

  Symptoms: Diesel smell at the dipstick, oil level rises above maximum, strong exhaust smell inside the car, engine judders or knocks more than usual, increased fuel consumption
  400–1,500 $
  Ad fuel injector gasket DW10fuel injector 2.0 HDi BoschKupferdichtring fuel injector DW10

+ 6 more engine weaknesses + vehicle weaknesses

Turbo version of the Prince engine (1.6L THP 150, 110 kW) — notorious for timing chain problems in early production years (2007-2012). The chain stretches, skips, and causes valve damage. From 2013 onward with an improved chain tensioner, the situation improved significantly. Oil consumption from piston rings and valve carbon buildup are additional classic weak spots. Plan for high-pressure fuel pump and thermostat housing as wear items.

• !! Timing chain stretch — notorious main problem from 80,000 km

  The THP 150 is notorious for timing chain stretch. The hydraulic tensioner and plastic guide rails fail early. A jumped chain risks catastrophic engine damage. The problem particularly affects vehicles produced before 2013.

  Symptoms: Loud rattling/clattering on cold start, rhythmic knocking, power loss, fault codes P0016/P0017, poor cold starting
  700–4,000 $
  Ad timing chain EP6DT THP 150chain tensioner 1.6 THPtiming chain kit Peugeot 308 THPchainnführungsschiene EP6DT
• !! Extreme oil consumption from 80,000 km

  Many THP 150 engines consume alarmingly large amounts of oil from 80,000 km — sometimes 1 litre per 1,500–2,000 km. Causes are worn piston rings, turbocharger shaft seals and a defective crankcase ventilation system.

  Symptoms: Oil level drops rapidly, bluish smoke under acceleration, oil smell, frequent topping up required
  300–5,000 $
  Ad piston rings EP6DT THPPCV valve 1.6 THPcrankcase ventilation EP6DT
• !! Turbocharger failure and wastegate malfunction from 80,000 km

  The twin-scroll turbocharger of the THP 150 develops housing cracks from 60,000–80,000 km. The wastegate can develop leaks and lose the ability to hold boost pressure. Full turbocharger replacement is often required.

  Symptoms: Boost pressure missing, power loss, whistling noise, black/blue smoke, engine management light
  1,800–2,800 $
  Ad turbocharger EP6DT THP 150wastegate 1.6 THPturbocharger Peugeot 308 THP

+ 6 more engine weaknesses + vehicle weaknesses

Revised THP with 156 PS (115 kW) — slightly more powerful than the EP6DT. The timing chain remains the main problem: a full chain kit replacement costs 1,000-4,000 EUR depending on the extent of damage. Piston ring coking leads to increased oil consumption starting from 50,000 km. VVT solenoid valves clog from oil degradation. The turbocharger (Borgwarner K03) and high-pressure fuel pump are additional cost drivers. Only operate with short oil change intervals.

• !! Timing chain stretch and tensioner failure from 80,000 km

  The hydraulic chain tensioner jams or fails; the chain stretches from around 70,000–90,000 km. Rattling on cold start that briefly subsides after warm-up. Continued operation risks catastrophic engine damage from incorrect valve timing.

  Symptoms: Rattling on cold start at around 2,000–3,000 rpm, disappears after warm-up. In advanced stage: rattling on every cold start, engine management light
  1,000–4,000 $
  Ad 0816H9 timing chain kit EP6CDT9822827180 timing chain THP 156chain tensioner 1.6 THP 5FV
• !! Increased oil consumption due to coked piston rings from 80,000 km

  Piston rings coke up from deposits and lose their sealing effect. Oil consumption of 1 L/5,000 km is still considered normal by PSA; consumption above 1 L/1,000 km indicates compression problems. Poor oil quality or long oil change intervals are often the cause.

  Symptoms: Blue exhaust cloud on cold start or under load, dropping oil level between change intervals, smoke when revving
  1,500–4,500 $
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• !! High-pressure pump wears out prematurely from 90,000 km

  Design weakness of the HP pump: excessive pressure against the shaft seal leads to premature wear. Fault code P0087 (rail pressure too low) is the typical result. PSA acknowledged the problem and offered goodwill coverage up to 150,000 km / 7 years.

  Symptoms: Stumbling on cold start, fault P0087 (rail pressure too low), rail pressure 6–7 bar instead of 50 bar, engine runs normally again after restart
  320–800 $
  Ad 1920LL high-pressure fuel pump EP6CDT9819938480 HPFP THP 15613517588879 fuel pump 1.6 THP

+ 5 more engine weaknesses + vehicle weaknesses

High-performance THP variant (1.6L, 128-147 kW) for sporty models like the 208 GTi and RCZ. Same timing chain issues as the EP6DT, but here under higher thermal and mechanical load. Turbocharger and high-pressure fuel pump wear faster than on the 150 PS variant. Regular oil changes with 5W-30 every 10,000 km are mandatory. From 2013 onward with improved chain tensioner and redesigned valve cover, reliability improved significantly.

• !! Timing chain stretch under high load from 80,000 km

  The simplex timing chain of the EP6DTS stretches especially quickly under the higher output (175–200 hp). The chain can jump from around 80,000 km — in the worst case causing valve-to-piston contact and catastrophic engine damage.

  Symptoms: Rattling on cold start, rough engine running, engine management light, power loss; if chain jumps: sudden engine shutdown
  1,200–4,500 $
  Ad EP6DTS timing chain kit1.6 THP chain tensionerPSA 0816.H9 timing chain
• !! Excessive oil consumption from coked piston rings from 100,000 km

  Direct-injection-related coking of the oil control rings leads to extreme oil consumption of 1–3 L/1,000 km. The higher thermal load of the EP6DTS means the problem occurs more frequently than on the EP6DT.

  Symptoms: Rapidly dropping oil level between services, blue smoke when revving, oil-fouled spark plugs, oil pressure warning
  2,000–4,000 $
  Ad EP6DTS piston rings1.6 THP oil control ringEP6 piston ringsatz
• !! High-pressure pump (HPFP) loses hydraulic oil from 100,000 km

  The high-pressure pump of the THP 200 is a hydraulic plunger pump with metal bellows. It gradually loses its internal hydraulic oil and fails — typically from 60,000–70,000 miles. Fault code P0087.

  Symptoms: Engine stumbling under load, power loss, starting problems, MIL with P0087, stalling at full throttle
  500–1,200 $
  Ad EP6DTS high-pressure fuel pump1.6 THP high-pressure fuel pumpPSA high-pressure fuel pump 1920LL

+ 5 more engine weaknesses + vehicle weaknesses

Most powerful THP variant (1.6L, 153 kW/225 PS) for the 208 GTi by PS and RCZ R. Revised twin-scroll turbo technology with significantly more torque than the base THP. The timing chain was improved compared to early THP variants but remains a concern at high mileage. HPFP seals and VVT solenoid valves wear faster under the high load. Valve carbon buildup from direct injection is inherent to the design.

• !! Timing chain stretch under extreme turbo load from 100,000 km

  The EP6FADTX is the most highly loaded variant of the Prince family (225 hp). Despite the improved chain, stretch occurs from around 100,000 km. The start-stop system generates additional load cycles on the chain.

  Symptoms: Chain rattle on cold start, rough engine running, valve timing fault in OBD, power loss; if chain jumps: catastrophic damage
  1,200–3,000 $
  Ad 0816H9 timing chain kit EP6FADTX9822827180 timing chain THP 225chain tensioner Prince engine EP6
• !! Severe carbon build-up on intake valves from 55,000 km

  Exclusively direct injection at 225 hp turbo output. The high exhaust temperature and volume of oil mist cause carbon to build up particularly quickly. Intake valves and ports foul significantly faster than on weaker THP variants.

  Symptoms: Noticeable power loss despite functioning turbo, increased consumption, hesitation at part throttle, misfire fault code
  400–900 $
  Ad EP6FADTX Walnut BlastingTHP 225 intake valvee cleaning1.6 THP intake manifold cleaning
• !! High oil consumption from coked oil control rings from 90,000 km

  At 225 hp thermal load the oil control rings coke up faster. Oil consumption of 1 L/1,000 km is not unusual. In advanced cases valve stem seals and possibly piston rings need replacement.

  Symptoms: Oil level drops rapidly, blue smoke under acceleration, oil-fouled spark plugs, oil smell inside the car
  2,000–4,500 $
  Ad EP6FADTX piston ringsTHP 225 valve stem sealsEP6 oil control ring

+ 4 more engine weaknesses + vehicle weaknesses

1.6-liter naturally aspirated engine (88 kW) from the Prince engine family, a PSA/BMW joint development. The timing chain can stretch from 60,000-80,000 km onward — rattling on cold start is the warning sign. Valve cover gasket and VVT solenoid valves are additional wear points. The VVT actuator filter screens get clogged with old oil residue. With regular oil changes (5W-30, max. 15,000 km intervals) and chain monitoring, a decent daily driver engine.

• !! Timing chain stretch and tensioner failure from 100,000 km

  The EP6 shares the Prince engine's timing chain problem. The hydraulic tensioner fails, the chain stretches and can jump. PSA revised the tensioner several times; significantly improved from 2013.

  Symptoms: Rattling on cold start, rhythmic clattering at idle, power loss, engine management light P0016/P0017
  500–900 $
  Ad timing chain EP6 1.6 VTichain tensioner EP6C Princetiming chain kit Peugeot 308 1.6 VTi
• !! Increased oil consumption from 120,000 km

  The EP6 VTi tends towards oil consumption from cylinder bore wear. Less pronounced than on the THP, but still relevant. Regular oil level checks are mandatory.

  Symptoms: Oil level drops between change intervals, bluish smoke, elevated emissions at MoT/TÜV
  200–2,000 $
  Ad piston rings EP6 1.6 VTivalve stem seal EP6C
• !! Water pump leaking from 100,000 km

  The water pump on the EP6 can develop leaks and in the worst case cause overheating. Coolant loss is often noticed too late. Replacement together with the timing chain makes sense.

  Symptoms: Coolant loss, coolant warning, engine overheats, puddle under the car
  200–500 $
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+ 3 more engine weaknesses + vehicle weaknesses