Volvo XC60

Engines before model year 2012 had a known piston ring problem with elevated oil consumption. Volvo offered an 8-year / 100,000-mile warranty extension. Revised pistons and rings from 2012.

Symptoms: Rapidly dropping oil level, blue exhaust smoke, engine oil blackens faster than normal.

The SI6 timing chain is fundamentally robust and 'engine-life' rated. Rare but documented: chain tensioner gives up and chain slaps. Repair on this engine is very labour-intensive.

Symptoms: Rattling or chattering noise from top of engine especially cold, check engine light, P0340 fault.

The B6304T4 thermostat sticks in the closed position, especially when it has not been changed for a long time. The warm-up phase is normal, but then it fails to open and engine temperature climbs to critical levels.

Symptoms: Engine temperature rises too high after a short drive, temperature warning, poor heater output in cold weather

SI6 B6304T4 PCV diaphragm tears and produces a hissing noise. Damaged PCV increases crankcase pressure and can damage seals. Typical long-life wear item on this engine.

Symptoms: Whistling hissing noise from engine bay especially at idle, oil seeping, rough idle.

Like its predecessor the B6304T2, the B6304T4 PCV diaphragm is also a known wear item. The diaphragm tears, causes hissing noises, and allows oil vapour into the intake tract. Replacing the membrane alone is often not a lasting fix — complete box replacement recommended.

Symptoms: Hissing at idle, elevated oil consumption, oil mist on air filter hose

The B6304T4 received Volvo's revised piston rings but remains sensitive to poor oil change discipline. Neglected PCV maintenance accelerates piston ring wear. Maximum 10,000 km oil change interval.

Symptoms: Increasing oil consumption above 200,000 km, blue smoke under load, slightly cloudy oil

D5 diesel (2009–2013) is prone to frequent cylinder head cracks and worn cylinder liners. Coolant loss without a visible leak is the warning sign; total engine failure is possible.

A recall was issued for five-cylinder diesel XC60 I vehicles because the ribbed belt can break prematurely. Without this belt, the alternator, power steering pump and A/C compressor all fail; in the worst case the engine overheats.

The Haldex pump on the XC60 I AWD blocks up with oil sludge when the oil change is neglected. Recommendation: change Haldex oil every 30,000 km, otherwise the rear axle loses drive. Pump replacement costs €400–800.

Foam insulation and wheel arch liners trap moisture and dirt; rust forms from the inside behind the clips. Check wing and wheel arch at the 10 o'clock and 2 o'clock positions.

Volvo itself confirms: on the XC60 I the two-component windscreen adhesive at the upper edge detaches. Water gets under the carpet, damages electronics and leads to mould growth. Documented multiple times in online forums.

The XC60 I draws an elevated quiescent current through its numerous control units. Many owners report battery failures after 2–3 years, especially with predominantly short-trip use. Deep discharge can damage electronics.

MOT reports and used car advisers confirm: the front axle on the XC60 I is frequently flagged. Tie rod ends and ball joints wear early, especially in combination with the heavy diesel engine.