Citroën Xsara
The TU5JP4 is a robust 16-valve naturally aspirated engine with belt drive and is considered the most reliable variant of the TU family. Oil dilution from short-trip driving and occasional hydraulic tappet ticking are known weak points. Well maintained, often problem-free up to 250,000 km.
Solid all-rounder
109 hp in the Xsara — the most sensible engine choice for the compact. Makes the Xsara a pleasant companion without sporting arrogance.
Engine Weaknesses 5
The TU5JP4 is an interference engine; a snapped timing belt destroys valves and pistons. PSA recommends replacement every 80,000 km; many specialists advise 60,000 km. Water pump and camshaft seal should be renewed at the same time.
Symptoms: Sudden engine stall, engine will not restart, metallic banging sounds as a precursor when belt is worn
The timing belt tensioner and idler pulley on the TU5JP4 can wear prematurely. As this is an interference engine, belt failure inevitably causes valve damage and frequently a complete write-off.
Symptoms: Squealing or rustling noise from the timing area, on failure immediate engine shutdown, bent valves
According to a Citroën Technical Bulletin, some TU5JP4 engines produced in September–October 2005 suffer from premature piston ring wear and elevated oil consumption. Affected engines consume noticeably more than 0.5 l/1,000 km.
Symptoms: Frequent oil top-ups, blue smoke from exhaust under acceleration or after standstill, oil smell
Ignition coils on the TU5JP4 fail frequently, individually or in succession. Beyond typical wear, a known issue on the 206 is that leaking windscreen washer jets drip onto the injector of cylinder 4 and destroy it.
Symptoms: Rough idle, stumbling on acceleration, engine check light, misfire fault codes P030x
The TU5JP4 tends to hydraulic tappet clatter, especially after prolonged standstill or on a cold engine. The cause is usually viscous oil in the hydraulic circuit or old oil with reduced pressure build-up. 5W-40 engine oil is recommended.
Symptoms: Metallic ticking at the top of the engine immediately after start-up, disappears after warm-up, louder when oil level is low
Vehicle Weaknesses 5
On the Xsara the electric thermal switch for the radiator, which should activate the cooling fan when water temperature rises, frequently fails. Without timely fan operation the engine risks overheating.
The Xsara's braking system receives poor marks at MOT inspections: wear and insufficient braking performance are frequently flagged. Handbrake and footbrake performance in particular stand out.
Oil loss at the engine block is a classic Citroën problem that was not resolved in the Xsara. Typical is oil seepage upper right on the engine block from a leaking head gasket — should be checked before purchase.
At 12.8% of all Xsara vehicles presented at the MOT, lighting defects are flagged — the single most common fault. Blown bulbs, corroded sockets, and failed headlight adjusters are typical causes.
The air conditioning on older Xsara models regularly loses refrigerant through aged seals. On vehicles over 10 years old annual top-ups are often necessary. Air conditioning compressors can also cause problems.
