Citroën C3
The EP3 (8FP) is a chain-driven naturally aspirated engine from the Prince family with variable valve timing. Premature chain tensioner failure was a known production fault (recall until 2011). Oil change intervals must be strictly observed as oil starvation directly threatens the timing chain and camshaft phaser.
C3 with automatic
98 hp with automatic in the C3 II — comfortable small car for city traffic; the automatic costs some liveliness but adds comfort.
Engine Weaknesses 6
EP3 engines up to model year 2011 were affected by a faulty hydraulic chain tensioner. If the chain stretches, valve timing shifts, and with further wear the chain can jump a tooth causing severe engine damage. PSA made several revisions.
Symptoms: Metallic rattling on cold start, power loss, rough idle, start problems or harsh engine noises in advanced cases
The EP3 is prone to elevated oil consumption from worn valve stem seals, especially on the exhaust valves. Additionally the oil separator in the valve cover gasket can tear and route unfiltered oil into the intake tract.
Symptoms: Blue smoke at startup or under throttle, frequent oil top-ups needed, oil smell from engine bay, oil in intake manifold
The thermostat housing with integrated coolant temperature sensor on the EP3 1.4 VTi is prone to leaks and sensor faults. Citroën issued a technical solution for affected C3 vehicles involving an additional sensor.
Symptoms: Coolant level drops without visible leakage, temperature gauge inaccurate, overheating warning, fault codes for coolant temperature
The ignition coils on the EP3 1.4 VTi can fail prematurely and cause misfires. Prolonged driving with a faulty coil risks damaging the catalytic converter with unburnt fuel.
Symptoms: Stumbling on acceleration, rough idle, engine check light, misfire fault codes P030x
Ignition coils on the EP3 have a high failure rate and are one of the most common reasons for workshop visits. A coil failure causes misfires that can damage the catalytic converter through unburnt fuel if the engine is run for too long.
Symptoms: Heavy jolting and vibrating, engine warning light (P0301–P0304), power loss, increased fuel consumption, erratic idle
The oil separator (crankcase ventilation) on the EP3 can become blocked over time, leading to crankcase overpressure. The result is oil leaks at gasket faces and increased oil consumption.
Symptoms: Oil loss at gasket faces, whistling noise from the engine bay, increased oil consumption, occasional exhaust smoke
Vehicle Weaknesses 5
Vehicles from December 2009 to July 2010 had brake pads that did not meet manufacturer specifications and may have produced insufficient braking force. Faulty ABS/ESP hydraulic components were also fitted.
Springs, shock absorbers and steering joints are flagged above average at the MOT on the C3 II. Worn ball joints and steering joints also regularly cause MOT failures after 5–7 years.
Brake discs on the C3 II wear too frequently and need changing often. The MOT flags the brakes above average across all build years. Older examples also show rusty brake lines.
Headlights, tail lights and indicators are flagged excessively often at the MOT in all build years. On 2010–2011 models, the earth cable to the gearbox can break, causing a sudden engine failure.
Exhaust system rust from the second MOT inspection is a known problem. Doors and bonnet rust from the inside at the flanges, as does the tailgate. Particularly on vehicles without regular cavity protection.
