Volvo XC90 1
Weaknesses, engine ratings and buying advice
The XC90 I (2002-2014) on the P2 platform is a genuine cult classic: Volvo's first big SUV, seven seats from the factory, ahead of its time on safety and with a cabin that still works today. Built almost unchanged for over twelve years, it has cemented itself as an indestructible family ship. On the 2026 market the broad range is around EUR 10,000-60,000 (skewed by late years); realistically solid P2 examples go for EUR 5,000-13,000, the rare V8 plays at EUR 6,900-13,500.
The central buying criterion is NOT the engine but the Aisin AW55-50SN torque-converter automatic. This is THE issue: from around 100,000 km expect shift shocks — especially on downshifts and when selecting D — plus slipping under part load. The cause is often the valve body or a worn B4 servo cover. Repair: a new valve body including removal/refit and adaptation drive runs about EUR 1,330, the B4 cover plus a transmission flush is far cheaper. Mandatory after any purchase: a transmission fluid flush — regardless of engine. On the engine front the five-cylinder petrol B5254T2 is the sensible choice (tough, cheap parts), the diesel D5244T runs forever but the early versions tend toward head cracks. And then the Yamaha V8 B8444S (4.4, 315 hp) — gorgeously silky, but with an infamous Achilles' heel: the balance shaft bearing fails on engines up to serial number 6833. Water collects in a depression below the bearing (e.g. after a high-pressure engine wash), destroys it, and the shaft eats into the timing-chain area — worst case an engine failure with five-figure repair costs. From engine number 6833 (2006+) the block has a drainage hole — those examples are safe.
Other P2 trouble spots: the optional rear air suspension with a tiring compressor and bags (EUR 300-900), front axle and tie rods wear early (rattles, steering play), the Haldex AWD needs regular oil changes or the clutch pack plays up, subframe rust, and the typical cold solder joints in audio/nav units.
Test-drive red flags: test the Aisin gearbox for hard shocks — cold AND warm, on selecting D and on downshifts; every jolt is a warning. On the V8 check the engine serial number (up to 6833 = balance-shaft risk) and listen for rattling/clattering from the timing drive. Air suspension sitting level, front axle for rattles, Haldex service history. Insider pick: a late B5254T2 or D5244T (2007+) with a clean gearbox history and documented transmission flush — unspectacular but rock solid. The V8 is one for the heart, only with an engine number above 6833 and a fat wallet for the fuel bill.
315 PS
XC90 · Benzin
V8 in a family SUV
Fun to Drive!238–243 PS
3.2L Benzin
4 weaknesses
Good Choice181–185 PS
2.4L D5 Diesel
7 weaknesses
Stay Away!Generations
Engine Overview
The Volvo XC90 1 is available with 6 engine variants — from 163 to 315 hp. 2 variants had engine changes — the model year is crucial.
Classic 2.4-litre five-cylinder common-rail diesel of the first D5 generation, a durable long-runner with 400,000 km potential given proper maintenance. The characteristic smooth, gruff five-cylinder note defines it. Its central weak spot is injector sealing in the cylinder head: as the clamp torque relaxes, combustion gases escape past the copper sealing washer and bake into hard carbon known as Black Death, seizing the injector and in the worst case damaging the head. Drive is via a timing belt including the water pump, which must be replaced strictly to interval since this is an interference design that suffers catastrophic valve and piston damage on belt failure. The EGR valve tends to soot up and hydraulic tappets can tick cold from around 100,000 km on poor oil. Key points: approved oil only, regular injector checks, and a strict belt interval.
- !! Injector seal leaking (Black Death) from 150,000 km
The copper ring seal under the injectors fails to seal properly. Hot exhaust gas escapes, burning oil and forming black soot crusts around the injectors — known as Black Death.
Symptoms: Black soot crusts visible around injectors, diesel/exhaust smell in engine bay, misfires, rough engine running. - !! Timing belt + water pump from 160,000 km
The timing belt including the water pump must be renewed by interval at the latest. The engine is an interference design: a belt failure or jump brings valves into piston contact, meaning catastrophic engine damage. A failing water pump or tensioner pulley often triggers the break.
Symptoms: Squealing or rattling from the belt drive, coolant loss from a leaking water pump; after a break the engine no longer starts and cranks unusually freely. - !! EGR valve sooted from 140,000 km
Over time soot deposits in the EGR valve so it no longer opens or closes fully. This causes power fluctuation and increased smoke. Heavier coking in the EGR tract risks follow-on damage in the intake area.
Symptoms: Fluctuating power under acceleration, black smoke, hesitation at low rpm, check engine light, occasional limp mode.
+ 3 more engine weaknesses + vehicle weaknesses
Developed 2.4-litre five-cylinder common-rail diesel in its second stage, now with a diesel particulate filter and swirl-flap intake manifold to meet tighter emissions standards. This brings extra weak spots: the swirl-flap linkage with its plastic ball joints tends to disconnect once soot raises the flap resistance, throwing fault code P2015 and limp mode. In the worst case a snapped flap element can be ingested. The DPF clogs under predominant short-trip use because regeneration temperature is never reached. The familiar injector seal in the head stays critical: leaking copper washers lead to Black Death. Timing-belt drive including the water pump, an interference engine, so keep the belt interval strict. The EGR tends to soot up. Long motorway runs for clean regeneration and consistent injector maintenance are advisable.
- !! Injector seal leaking (Black Death) from 150,000 km
The copper seal under the piezo injectors no longer seals properly. Combustion gases escape, burn the engine oil, and form black carbon crusts around the injectors — costly problem on the D5244T4.
Symptoms: Black crusts around injectors, soot smell in engine bay, misfires, power loss, increased fuel consumption. - !! Timing belt + water pump from 160,000 km
Replace timing belt every 160,000 km or 10 years. Water pump must be changed at the same time without exception. New belt with old pump is a frequent cause of immediate consequential damage.
Symptoms: No warning. Belt failure leads to total damage with bent valves. - !! Swirl flap linkage breaks from 150,000 km
The swirl flaps in the intake manifold disconnect once soot raises the flap resistance and the plastic ball joint of the linkage fails. Result: fault code P2015 and limp mode. Rarely a snapped flap part can be ingested.
Symptoms: Power loss, limp-home mode, check engine light with P2015, oily deposits around the flap actuator, occasional hesitation at low rpm.
+ 4 more engine weaknesses + vehicle weaknesses
Third-generation 2.4-litre five-cylinder common-rail diesel with diesel particulate filter and swirl-flap intake manifold, closely related to the second stage. Refinement and low-end pull are typical strengths of these five-cylinders. The swirl-flap mechanism remains the sore point: plastic ball joints and linkage disconnect when sooted, fault code P2015 appears and the engine goes into limp mode. The DPF suffers under short-trip use as the required regeneration temperature is not reached and diesel wash-down dilutes the engine oil. The injector seal in the head needs vigilance: as the clamp torque relaxes, escaping combustion gases create Black Death. Replace the timing belt and water pump to interval, as this interference engine risks catastrophic damage on belt failure. Consistent maintenance and regular long-distance use keep the engine healthy.
- !! Injector seal leaking from 150,000 km
On the later D5244T10, injector copper seals can also leak. The two-stage turbocharging system increases cylinder pressure, placing greater stress on sealing surfaces.
Symptoms: Black deposits around injectors, fuel smell, misfires, rough engine running. - !! Timing belt + water pump from 160,000 km
Replacement interval 160,000 km or 10 years. On the two-stage turbo diesel, engine damage from belt failure is even more costly — so maintenance must not be skipped.
Symptoms: No warning signal. Belt failure leads to immediate engine damage. - !! Swirl flap linkage breaks from 150,000 km
The intake manifold swirl flap on the D5244T10 carries the same design problem as in the T4. The plastic linkage fatigues and breaks; loose parts can cause engine damage.
Symptoms: Check engine light, rattling intake noise, power loss, possible engine damage on complete failure.
+ 3 more engine weaknesses + vehicle weaknesses
Evolved naturally aspirated whiteblock with revised engine management and an electronic throttle (first-generation Magneti Marelli module). Cast-iron block, aluminium head, timing-belt drive — an interference engine, so renew the belt with tensioner and the belt-driven water pump every 120,000 km or 8 years to avoid valve damage. Refinement and longevity are good as long as the crankcase ventilation stays clear; a clogged oil separator raises crankcase pressure and pushes seals out. The electronic throttle can become temperamental with age. Clean servicing and regular oil changes are decisive.
- !! Timing belt replacement mandatory from 160,000 km
The timing belt also drives the water pump. Belt failure or skipping causes immediate engine damage. Replacement interval 160,000 km or 10 years including water pump.
Symptoms: No warning before belt breaks. Sudden stall or loud rattling signals damage. - !! Cam phaser (VVT) oil leak from 150,000 km
The seal of the intake camshaft phaser hardens and starts to leak. Oil collects around the belt area, can contaminate the timing belt and in the worst case shorten its life. A typical whiteblock theme as mileage rises.
Symptoms: Oil traces around the timing belt area, oily belt cover, in rare cases belt contamination; usually no power loss. - !! PCV oil separator clogged from 120,000 km
The plastic PCV oil separator housing becomes brittle and clogs internally with sludge. Elevated crankcase pressure forces oil past seals — typical Volvo five-cylinder problem.
Symptoms: Rough idle, whistling noise, oil mist from breather hoses, oil spots under the vehicle.
+ 3 more engine weaknesses + vehicle weaknesses
2.5-liter five-cylinder, the widely used standard Whiteblock turbo variant with a Mitsubishi TD04L charger and around 154 kW. Aluminum block with wet liners, timing-belt driven (interval roughly 120,000 km / 10 years, water pump runs off it) — an interference engine, so a snapped belt bends the exhaust valves. The crankcase ventilation system (PCV/oil trap) is the typical weak spot: when it clogs, crankcase pressure rises, forcing oil past the valve cover gasket and crank seals, and on the turbo it drives up oil consumption. The turbo oil-drain seal is prone to leaking. The valve cover gasket hardens with age and weeps. Overall a smooth, mature engine with moderate output that reaches high mileage without trouble given consistent PCV care and synthetic oil.
- !! Timing belt + water pump mandatory from 160,000 km
Replacement interval 160,000 km or 10 years. Timing belt drives water pump. An old pump failing after a belt change can instantly destroy the new belt.
Symptoms: No warning signal. Missed service causes engine damage without warning. - !! PCV oil separator clogged from 100,000 km
Plastic PCV system hoses become brittle and crack, separator clogs with sludge. Crankcase vacuum draws oil past camshaft and crankshaft seals.
Symptoms: Whistling noise from under bonnet, oil spots on underbody at rear of engine, rising oil consumption, smoke from engine bay. - !! Turbo drain pipe seal leaking from 150,000 km
The turbocharger oil drain line seals with O-rings that stretch at higher mileage. Oil loss at the turbo housing and increased oil consumption follow.
Symptoms: Blue smoke after coasting, oil accumulation under the vehicle near the turbo, oil consumption 0.5–1 L per 1,000 km.
+ 2 more engine weaknesses + vehicle weaknesses
Transverse 2.9-litre inline-six, evolution of the T6 with twin-turbos and CVVT. Belt-driven timing — keep the interval strict and renew the water pump, tensioner, CVVT hubs and camshaft seals with the belt. The CVVT phasers are the classic weak point and rattle on cold start when worn. The water pump is driven off the power-steering pump ancillary drive; its bearing can fail at higher mileage. The PCV diaphragm clogs and builds crankcase pressure — neglected, it harms turbo oil drainage and seals. Look after timing belt, PCV and turbo oil supply and it is a refined, strong six.
- !! Timing belt + camshaft adjusters from 100,000 km
Camshaft adjusters frequently leak oil. Timing belt should be changed every 100,000 km. A break causes costly valve damage. Combination of a leaking adjuster and an old belt is common.
Symptoms: Oil patch at top of engine, camshaft fault code, rough engine running, check engine light. - !! Water pump and bearing failure from 180,000 km
The water pump, driven off the power-steering pump ancillary drive, and its bearing tend to fail at high mileage — risking coolant loss and overheating. The smooth inline-six tolerates overheating poorly and head-gasket damage can follow. Always renew the water pump with the timing belt.
Symptoms: Coolant loss, puddle under the engine, grinding or whining noise from the pump, rising coolant temperature, sweet smell. - !! Turbocharger oil feed strainer clogged from 180,000 km
The oil feed strainer to the B6294T turbocharger can block, interrupting oil supply to the turbo shaft. Without sufficient oil, the shaft runs dry and the turbocharger is irreparably damaged in a short time.
Symptoms: Loud screaming or rattling from turbo, power loss, blue smoke, metal particles in oil
+ 1 more engine weaknesses + vehicle weaknesses
Longitudinal 3.2-litre SI6 naturally-aspirated unit from the Ford era (P3 platform), closely related to the turbo variants. Chain-driven timing, NOT a belt. A defining design feature: two of the four catalytic converters are integrated into the exhaust manifold — if they fail the manifold must be replaced as an expensive assembly. The rear-mounted READ unit (axial-bearing ancillary drive module) uses splash-lubricated needle bearings before MY2011 that wear early and produce grinding noise; removal requires special tools. The camshaft sealing plugs and the vacuum-pump seal tend to leak oil. Valve stem seals can cause mild oil consumption at high mileage. Keep an eye on the thermostat and ageing coolant hoses.
- !! READ unit (thrust bearing) fails from 130,000 km
The READ (Rear Engine Auxiliary Drive) on early B6324S engines uses needle bearings instead of ball bearings. These bearings can seize with inadequate lubrication. Switched to ball bearings from 2011 (B6324S5).
Symptoms: Loud rattling or grinding from the rear of the engine, oil pressure loss, MIL light, engine noise under load. - !! Camshaft end plugs leaking from 100,000 km
Technical service bulletins document oil leaks at the B6324S camshaft end plugs. Oil seeps from the side of the cylinder head. Volvo has issued a repair procedure.
Symptoms: Oil leak at the side of the cylinder head, oil smell after driving, engine oil loss with no visible underbody source. - !! Integrated exhaust-manifold catalytic converters fail from 160,000 km
Two of the four catalytic converters are integrated directly into the exhaust manifold. If the substrate cracks or clogs, the manifold must be replaced as one very expensive assembly. Poor accessibility drives labour time up further.
Symptoms: Catalyst efficiency fault code, power loss, rattling from broken ceramic, raised emissions, check-engine light.
+ 3 more engine weaknesses + vehicle weaknesses
Revised 3.2-litre SI6 naturally-aspirated unit from MY2011 with numerous detail improvements. Chain-driven timing, NOT a belt. The key upgrade: the rear-mounted READ unit received ball bearings instead of needle bearings and is far more durable as a result. Also a DLC-coated valvetrain, revised spark plugs and updated mapping. The camshaft sealing plugs remain a potential oil-leak point. The PCV/oil-separator unit should be serviced from around 150,000 km to avoid crankcase pressure and the resulting seal leaks. Oil consumption is generally moderate. The thermostat and engine mounts age with mileage. Overall the more mature, more reliable version of the 3.2 NA.
- !! Camshaft end plugs leaking from 100,000 km
B6324S5 camshaft end plugs can leak oil — same TSB issue as the predecessor. Volvo has issued a repair procedure (TNN21-28).
Symptoms: Oil seeping from the side of the cylinder head, oil smell after driving, gradual oil loss. - !! PCV diaphragm valve fails — oil sucked into intake from 100,000 km
The B6324S5 uses a diaphragm for PCV regulation. When the diaphragm fails, full intake vacuum acts on the crankcase: oil is actively drawn into the intake tract. A functioning PCV system shows slight negative pressure at idle.
Symptoms: Oil consumption with no visible leaks, oil in air filter element, rough idle, whistling noise. - ! Slight to moderate oil consumption from 150,000 km
Even the revised B6324S5 shows slight to moderate oil consumption at higher mileages. Up to 0.5 L per 1,000 km is internally tolerated by Volvo, but should be monitored.
Symptoms: Oil level visibly drops between oil changes, no smoke or leaks detectable.
+ 1 more engine weaknesses + vehicle weaknesses
Transversely mounted 4.4-litre V8, designed by Volvo and built by Yamaha. To fit the tight engine bay the cylinder banks sit at an unusual 60-degree angle instead of the V8-typical 90 degrees, which requires a balance shaft for smoothness. That shaft is the Achilles heel: on engines up to serial number 6833 the half-exposed balance-shaft bearing can be destroyed by ingressing water — a rattle that, left untreated, takes out the timing chain and in the worst case causes engine damage running into five figures. Never spray water directly into the engine bay. Otherwise a strong, refined engine; valve cover gaskets and the water pump age, and the crankcase ventilation should be checked regularly, as oil-fouled ignition coils otherwise cause misfires.
- !! Balance shaft bearing fails (critical) from 100,000 km
The half-exposed balance-shaft bearing is destroyed on engines up to serial number 6833 by water collecting in a recess in the block. From no. 6833 a drilled hole drains the recess. Result: rattle, later engine damage.
Symptoms: Loud metallic clattering or banging from lower engine, power loss, engine oil pressure drop, stop immediately. - !! Timing chain wears due to balance shaft failure from 100,000 km
Secondary failure of the balance-shaft bearing damage: the rattling shaft eats away at the opposite mount, the drive sprocket wears, the timing chain stretches and can jump — then pistons hit valves.
Symptoms: Rattling noise on start, check engine light with crankshaft/camshaft fault, engine shudder, power loss. - !! Water pump and cooling system from 130,000 km
V8 water pump can fail. On an eight-cylinder engine with high heat output, overheating is especially damaging. Check coolant level and quality regularly.
Symptoms: Coolant temperature rises, coolant loss, heater delivers cold air, overheating warning.
+ 3 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Aisin AW55-50/51 automatic: harsh shift shocks, valve body The Aisin torque-converter automatic is the XC90 I's biggest weakness. From around 120,000 km abrupt gear changes, jolting when selecting D, and on five-cylinder cars the valve body can fail. Regular fluid changes greatly extend its life. Symptoms: Harsh shift shocks selecting D/R, jolting on upshifts, delayed engagement, limp mode; the T6's 4-speed converter auto is very unreliable. from 120,000 km | High | |
| Haldex AWD coupling and transfer case failure The Haldex all-wheel drive system on early XC90 models (pre-2007) shows wear at the coupling and differential. If the damage is not corrected, the entire drivetrain can fail. Symptoms: Car behaves like FWD on ice, grinding noise when cornering, AWD warning from 100,000 km | High |
Top Reported Issues
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Known Problems and Issues +
A total of 63 weaknesses have been documented for the Volvo XC90 1 (2002–2014) — 50 engine-related and 13 vehicle-related. 4 problem engines: B8444S (4.4L V8), D5244T (2.4L D5), D5244T4 (2.4L D5), D5244T10 (2.4L D5). Typical issues affect Gearbox, Suspension, Steering, Electronics. Considered reliable: B6324S5 (3.2L).
XC90 (D5244T, 2002–2006) — Stay Away!: Injector seal leaking (Black Death), Timing belt + water pump, EGR valve sooted. Power: 163 PS.
XC90 (D5244T4, 2005–2014) — Stay Away!: Injector seal leaking (Black Death), Timing belt + water pump, Swirl flap linkage breaks. Power: 185 PS.
XC90 (D5244T10, 2009–2014) — Stay Away!: Injector seal leaking, Timing belt + water pump, Swirl flap linkage breaks. Power: 200 PS.
XC90 (B5244S2, 2002–2014) — Be Careful: Timing belt replacement mandatory, Cam phaser (VVT) oil leak, PCV oil separator clogged. Power: 170 PS.
XC90 (B5254T2, 2002–2014) — Be Careful: Timing belt + water pump mandatory, PCV oil separator clogged, Turbo drain pipe seal leaking. Power: 209 PS.
XC90 (B6294T, 2002–2006) — Be Careful: Timing belt + camshaft adjusters, Water pump and bearing failure, Turbocharger oil feed strainer clogged. Power: 272 PS.
XC90 (B8444S, 2005–2014) — Stay Away!: Balance shaft bearing fails (critical), Timing chain wears due to balance shaft failure, Water pump and cooling system. Power: 315 PS.
XC90 (B6324S, 2006–2014) — Be Careful: READ unit (thrust bearing) fails, Camshaft end plugs leaking, Integrated exhaust-manifold catalytic converters fail. Power: 238–243 PS.
What to watch out for with the Volvo XC90? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Volvo XC90 1 have? +
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Which Volvo XC90 1 engine is the most reliable? +
Which Volvo XC90 1 engine is the most fun? +
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Last updated: February 2026 · All information without guarantee