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Volvo2017–2023 Critical issues documented

Volvo XC40: common faults & what to check

Thinking about buying a used Volvo XC40 (2017–2023) in New Zealand? We've documented 16 known faults for this model spanning engine, cooling, brakes, and body & rust. Each researched and verified before it's published. The most serious issues here are rated critical. Every one is listed below with its symptoms and repair cost, and each has its own page with where to look and what to ask the seller. Free, no account needed.

Check this exact Volvo XC40

  • Odometer history
  • Money owing
  • Reported stolen
  • Ownership history
  • Official NZ vehicle register data
  • NZ owned and operated

Type the plate for the free basics. The full record is a paid check from $13.49, one car at a time, no subscription.

No NZ plate yet, or buying in Australia? Pick the generation and engine and start a free check below. New to KickTyres? How the check works →

16

Documented faults

Critical

Most serious

$350–$1,800

Typical repair

7

Systems covered

Which Volvo XC40 are you looking at?

3 generation variants documented. Pick the shape you recognise: the faults, the servicing and the timeline below all narrow to it. Free, no account needed.

Petrol

1 variant documented

Electric

1 variant documented

Now narrow it to the engine

A 1.8 and a 2.4 of the same car do not fail the same way, so the faults below narrow to the engine as well as the year. Free, no account needed.

Start your free check on this Volvo XC40

No plate needed. You get the risk score, the buyer's checklist and the guided inspection for the exact car you picked above — not the whole nameplate.

Volvo XC40Engine not picked yet

Pick the engine above first: the XC40 came with 3, and without it the report has to show all of their faults. Pick the engine

Free. The paid plate check is separate, and stays optional.

Can't confirm for this car

Volvo XC40

Nothing has been narrowed yet, so nothing below is a claim about a particular car. Pick a year and an engine to see which faults apply.

Tell us the engine, or check the engine code on the car, before relying on this.

matched on no vehicle context

What to look out for

The checks worth doing on a Volvo XC40 before you hand over any money. Every documented fault is listed below, each with its own page.

  • Serious issue

    Demand stamped Volvo service history showing timing belt and water pump replacement.

    See why

    Timing Belt & Water Pump Failure — 2.0T Petrol Drive-E

    The B4204T23 and B4204T27 Drive-E 2.0T engines use a rubber timing belt (not a chain), which also drives the coolant water pump. Belt failure or water pump seizure causes immediate belt snap, resulting in catastrophic piston-to-valve contact and total engine write-off. Volvo specifies replacement at 150,000 km or 10 years, but high-mileage or poorly serviced examples frequently present without documented belt history.

    What you would notice

    • Engine stops suddenly without warning while driving
    • Rattling or slapping noise from front of engine before failure
    • Coolant temperature spike from failing water pump
    • No restart after stall — engine turns over freely (no compression)
    • Oil or coolant leak from timing belt cover area

    Typically $1,800–$2,500 to put right.

  • Costly issue

    Pull the dipstick cold before the test drive — oil should be at or near the max mark.

    See why

    Drive-E 2.0T Excessive Oil Consumption

    The B4204T-series Drive-E engines are documented to consume engine oil between service intervals at rates above industry norms, primarily due to piston ring design and positive crankcase ventilation (PCV) system faults. Affected engines can consume 0.5–1.5 litres per 1,000 km without presenting external leaks. Owners running the engine low on oil risk accelerated bearing wear, turbocharger oil starvation, and catalytic converter contamination from oil passing the rings.

    What you would notice

    • Oil level drops to minimum within 5,000 km of a service
    • Blue-grey smoke from exhaust on cold start or hard acceleration
    • Oily residue inside air intake ducting
    • Engine oil low warning light illuminated
    • Catalytic converter smell or reduced catalyst efficiency warning

    Typically $200–$8,500 to put right.

  • Costly issue

    Heavy carbon buildup appears as a black, crusty ring around the valve stem reducing the valve curtain area.

    See why

    B4204T GDI Intake Valve Carbon Buildup at High Mileage

    The B4204T and B4204T6 engines fitted to the XC40 use gasoline direct injection (GDI) without a secondary port-injection circuit. Without fuel wash the intake valve stems and back-faces accumulate combustion blowby deposits (carbon). By 100,000–130,000 km deposits are typically thick enough to restrict airflow, causing intermittent misfires on cold start, rough idle, and a measurable reduction in power. The only effective remediation is walnut-shell blast cleaning of the intake ports with the inlet manifold removed, or mechanical scraping under direct vision.

    What you would notice

    • Rough idle, especially on cold start, that clears as engine warms
    • Intermittent misfire codes P030X on one or more cylinders
    • Reduced power and throttle response compared to earlier in the vehicle's life
    • Failed or marginal emissions test without other faults present
    • Increased fuel consumption with no mechanical fault found

    Typically $750–$1,600 to put right.

  • Costly issue

    Ask the seller how often the car is charged; infrequent charging accelerates 12V depletion.

    See why

    PHEV 12V Auxiliary Battery Drain and Failure — Recharge

    The XC40 Recharge PHEV relies on a small 12V AGM auxiliary battery to power control modules, high-voltage contactors, and startup sequences. When the vehicle sits without the HV pack being regularly charged, the 12V battery discharges below the threshold needed to wake the HV system. Volvo's battery-to-battery charging circuit can also fail to top up the 12V battery from the HV pack, leaving owners stranded with a car that cannot start even though the traction battery shows charge.

    What you would notice

    • Car will not respond to key fob or start button — completely dead
    • All screens and interior lights extinguish suddenly
    • Repeated need to jump-start even after HV pack is fully charged
    • Dashboard warning 'Battery Charging System Failure' or 'Service Required'
    • Infotainment system spontaneously reboots while driving

    Typically $250–$650 to put right.

  • Costly issue

    Press firmly on the headliner around the sunroof aperture — any sagging or damp feel confirms water entry.

    See why

    Panoramic Sunroof Drain Blockage and Cabin Water Ingress

    XC40 models fitted with the optional panoramic sunroof have four drain tubes routed through the A and C pillars to exit beneath the vehicle. Debris, leaf matter, and road grime block these drains, causing water to back up and overflow into the headliner, A-pillar trim, and floor carpets. Repeated saturation of carpets and underfelt leads to corrosion of floor pan metal, mould growth, and — critically — water ingress into control modules located under the front seats.

    What you would notice

    • Damp or wet front floor carpets after rain, particularly driver's side
    • Sagging or stained headliner material around sunroof seal
    • Musty mould smell from carpet and A-pillar trim area
    • Intermittent electrical faults in modules located under seats
    • Water dripping from overhead dome light or sunshade housing during cornering

    Typically $150–$4,500 to put right.

  • Costly issue

    Ask for Haldex service records.

    See why

    Haldex Rear Axle Coupling Failure — AWD Models

    AWD XC40 models use a Haldex Generation 5 electrohydraulic rear axle coupling to distribute torque to the rear wheels on demand. The unit has an internal oil pump and clutch pack that require dedicated Haldex fluid and filter service every 37,500–60,000 km. Neglected fluid degrades, the internal pump cavitates, and clutch plates score, eventually leaving the vehicle in permanent front-wheel drive or causing complete coupling lock-up and driveline vibration.

    What you would notice

    • Vibration or shudder from rear axle during acceleration out of corners
    • AWD warning light or traction control errors on dashboard
    • Vehicle behaves as FWD only — no drive to rear wheels under load
    • Burning smell from rear underbody after spirited driving
    • Clunking noise when transitioning between drive and coast

    Typically $350–$3,200 to put right.

See all 16 documented issuesEverything researched for the Volvo XC40, including 3 rated critical.
Depends on which engine this Volvo XC40 has — 16Each of these is documented for one particular engine. Pick the year and engine above to see which of them apply.
Engine, transmission & cooling11

01Timing Belt & Water Pump Failure — 2.0T Petrol Drive-E

Demand stamped Volvo service history showing timing belt and water pump replacement.petrol2017–2023Engine
OccasionalEngine $1,800–$2,500 to fix

Can't confirm for this car

The B4204T23 and B4204T27 Drive-E 2.0T engines use a rubber timing belt (not a chain), which also drives the coolant water pump. Belt failure or water pump seizure causes immediate belt snap, resulting in catastrophic piston-to-valve contact and total engine write-off. Volvo specifies replacement at 150,000 km or 10 years, but high-mileage or poorly serviced examples frequently present without documented belt history.

Symptoms to notice

  • Engine stops suddenly without warning while driving
  • Rattling or slapping noise from front of engine before failure
  • Coolant temperature spike from failing water pump
  • No restart after stall — engine turns over freely (no compression)
  • Oil or coolant leak from timing belt cover area

What to check

Demand stamped Volvo service history showing timing belt and water pump replacement. If mileage is over 100,000 km with no record, budget $1,800–$2,500 for immediate replacement. Check for coolant weeping from the water pump weep hole under the front engine cover.

Where to look: Front of engine block, behind plastic cover, passenger side

Parts involved: Timing belt, Water pump.

Ask the seller

  • “Can you show me the service history entry specifically for timing belt and water pump replacement?”
  • “Has the car been serviced exclusively at Volvo dealers or authorised workshops?”
  • “What is the current odometer reading and when was the last major service performed?”

02Electric Water Pump Failure Causing Overtemperature Warning

petrol2017 onwardCooling
OccasionalCooling $1,250–$2,300 to fix

Can't confirm for this car

The Drive-E B4204T and B4204T6 engines fitted to the XC40 use an electrically driven water pump (EWP) as part of the integrated thermal management system. The EWP brushless motor windings or internal electronics fail without warning between 80,000 and 160,000 km, losing coolant circulation. The driver receives a dashboard overtemperature warning. If the vehicle continues to be driven the engine can sustain head gasket failure or warped cylinder head. Fault code ECM-3880 or ECM-0040 is logged. Replacement requires draining the cooling system and installing the updated EWP assembly.

Symptoms to notice

  • Engine temperature warning illuminated on the driver display
  • Temperature gauge climbing into the red zone at idle or low speed
  • No audible coolant circulation sound from the engine bay at idle
  • Fault codes ECM-3880 or ECM-0040 stored in engine control module
  • Possible coolant steam from the engine bay in severe cases

What to check

With the engine at operating temperature and idling, listen for the electric pump hum from the lower front of the engine — absence of hum with the engine warm is diagnostic. Inspect the coolant reservoir level and look for signs of previous overheating: white scale on the reservoir cap, discolouration in the coolant, or a milky residue on the oil filler cap indicating head gasket compromise. If a workshop inspection is possible: Connect a Volvo-compatible scan tool (VIDA or third-party equivalent) and check for active or stored ECM-3880 and ECM-0040 codes.

Where to look: Lower front of engine, electric water pump mounted on the engine block below the alternator bracket

Parts involved: Water pump.

Ask the seller

  • “Has the electric water pump ever been replaced?”
  • “Has the car ever shown an engine overtemperature warning or high-temperature light?”
  • “Are there any stored fault codes in the engine control module?”
  • “Has the coolant ever been changed or topped up unexpectedly?”

03Drive-E 2.0T Excessive Oil Consumption

Pull the dipstick cold before the test drive — oil should be at or near the max mark.petrol2017–2023EngineRead the full fault: symptoms, where to look, what to ask the seller

04Haldex Rear Axle Coupling Failure — AWD Models

Ask for Haldex service records.2017–2023Transmission
OccasionalTransmission $350–$3,200 to fix

Can't confirm for this car

AWD XC40 models use a Haldex Generation 5 electrohydraulic rear axle coupling to distribute torque to the rear wheels on demand. The unit has an internal oil pump and clutch pack that require dedicated Haldex fluid and filter service every 37,500–60,000 km. Neglected fluid degrades, the internal pump cavitates, and clutch plates score, eventually leaving the vehicle in permanent front-wheel drive or causing complete coupling lock-up and driveline vibration.

Symptoms to notice

  • Vibration or shudder from rear axle during acceleration out of corners
  • AWD warning light or traction control errors on dashboard
  • Vehicle behaves as FWD only — no drive to rear wheels under load
  • Burning smell from rear underbody after spirited driving
  • Clunking noise when transitioning between drive and coast

What to check

Ask for Haldex service records. During a test drive, do a slow-speed full-lock circle on loose gravel or grass — a seized or disengaged Haldex will either bind hard (locked) or show no rear engagement (wheel spin purely front). If a workshop inspection is possible: Lift the rear differential cover to check for burnt fluid smell or metal flake contamination.

Where to look: Rear axle, centre of rear subframe between rear wheels

Parts involved: Clutch.

Ask the seller

  • “Has the Haldex unit ever had its fluid and filter serviced, and do you have the receipt?”
  • “Has any AWD warning light or traction control fault appeared on the dashboard?”
  • “Has the vehicle ever been used for towing, which accelerates Haldex wear?”

05High-Pressure Fuel Pump (HPFP) Failure — 2.0T Petrol

During a hard acceleration test from 60–100 km/h, listen for any stumbling, misfiring, or momentary power loss.petrol2017–2023Engine
OccasionalEngine $1,200–$2,800 to fix

Can't confirm for this car

The direct-injection 2.0T Drive-E engine uses a camshaft-driven high-pressure fuel pump to supply fuel at the 200+ bar pressure required for GDI operation. The pump's internal roller followers and lobes can wear prematurely, causing fuel pressure to drop under load. The result is misfires, power loss, and in severe cases the engine entering a limp mode that prevents safe motorway driving. Complete pump failure leaves the vehicle unable to start.

Symptoms to notice

  • Hesitation or stumble under hard acceleration or high load
  • Engine misfires at high RPM — particularly above 4,000 RPM
  • Engine management warning light with fuel pressure fault codes
  • Difficulty starting from cold with multiple cranking attempts needed
  • Power loss at motorway speed with engine falling into limp mode

What to check

During a hard acceleration test from 60–100 km/h, listen for any stumbling, misfiring, or momentary power loss. If a workshop inspection is possible: Use an OBD reader to check for stored fault codes in the fuel system module — particularly P0087 (fuel rail pressure too low) or P0193. A dealer can perform a fuel rail pressure test under load to confirm pump output.

Where to look: Top of engine, mounted to camshaft carrier on the exhaust camshaft

Parts involved: High-pressure fuel pump.

Ask the seller

  • “Has the engine ever misfired, hesitated under acceleration, or triggered a check engine light?”
  • “Has the car ever had fuel system or fuel pump work performed?”
  • “Can I take the car for an extended motorway test drive at sustained high speed?”

067DCT Dual-Clutch Transmission Fluid Degradation Causing Judder

petrol2017 onwardTransmissionRead the full fault: symptoms, where to look, what to ask the seller

07PHEV High-Voltage Battery Coolant Pump Failure — Recharge

The XC40 Recharge PHEV uses a dedicated electric coolant pump to regulate high-voltage battery pack temperature.hybrid2019–2023Cooling
OccasionalCooling $900–$2,200 to fix

Can't confirm for this car

The XC40 Recharge PHEV uses a dedicated electric coolant pump to regulate high-voltage battery pack temperature. These brushless DC pumps are prone to bearing wear and internal seal failure, causing loss of coolant circulation. The battery management system detects elevated pack temperatures and progressively restricts charging rate and available electric range; in severe cases it disables HV charging entirely to prevent thermal damage.

Symptoms to notice

  • Charging speed drops significantly at public AC chargers
  • Electric range displayed is substantially below rated spec after full charge
  • Battery temperature warning or hybrid system fault on instrument cluster
  • Coolant loss from secondary reservoir with no visible external leak
  • Car defaults to petrol-only mode and refuses to draw on battery

What to check

Carly for Volvo) and read any stored DTC codes in the Battery Management System module — fault codes referencing coolant pump, battery temperature deviation, or cooling loop failure. During a cold-to-warm drive, monitor whether AC charging slows or stops. Check for coolant level drop in the secondary (PHEV battery) coolant reservoir. If a workshop inspection is possible: Connect a Volvo VIDA or third-party OBD tool (e.g.

Where to look: Underbody rear area near HV battery pack, secondary cooling circuit

Parts involved: Water pump.

Ask the seller

  • “Has the vehicle ever shown a battery temperature warning or refused to charge to full?”
  • “What is the typical electric-only range being achieved vs the rated figure?”
  • “Has the secondary coolant reservoir ever needed topping up?”

08B4204T GDI Intake Valve Carbon Buildup at High Mileage

Heavy carbon buildup appears as a black, crusty ring around the valve stem reducing the valve curtain area.petrol2017 onwardEngine
CommonEngine $750–$1,600 to fix

Can't confirm for this car

The B4204T and B4204T6 engines fitted to the XC40 use gasoline direct injection (GDI) without a secondary port-injection circuit. Without fuel wash the intake valve stems and back-faces accumulate combustion blowby deposits (carbon). By 100,000–130,000 km deposits are typically thick enough to restrict airflow, causing intermittent misfires on cold start, rough idle, and a measurable reduction in power. The only effective remediation is walnut-shell blast cleaning of the intake ports with the inlet manifold removed, or mechanical scraping under direct vision.

Symptoms to notice

  • Rough idle, especially on cold start, that clears as engine warms
  • Intermittent misfire codes P030X on one or more cylinders
  • Reduced power and throttle response compared to earlier in the vehicle's life
  • Failed or marginal emissions test without other faults present
  • Increased fuel consumption with no mechanical fault found

What to check

Heavy carbon buildup appears as a black, crusty ring around the valve stem reducing the valve curtain area. Compare observed deposits against photographic reference for 100,000 km and 150,000 km typical accumulation rates. Request service records for any previous intake cleaning procedure. If a workshop inspection is possible: With the engine cold and the intake manifold accessible, remove the intake manifold and use a borescope to inspect the back-face of each intake valve.

Where to look: Intake manifold and intake valve ports — cylinder head intake side, accessible after manifold removal

Parts involved: Intake manifold.

Ask the seller

  • “Has the intake manifold ever been removed for intake valve cleaning?”
  • “Has the vehicle ever had misfire codes or rough idle complaints?”
  • “What is the total mileage and has any power reduction been noticed over time?”

09B4204T6 Turbo Inlet Hose Split at Boost Clamp

Squeeze the hose along its full length and at both clamp sites feeling for cracks, softness, or delamination.petrol2017 onwardEngine
OccasionalEngine $380–$800 to fix

Can't confirm for this car

On the XC40 T4 and T5 fitted with the B4204T6 engine the high-pressure turbo inlet hose that routes from the intercooler outlet to the throttle body is reinforced with a worm-drive clamp at the intercooler end. Under sustained boost loads such as extended motorway merging or uphill overtaking the clamp localises stress on the silicone sleeve and the hose splits longitudinally or de-beads from the clamp. The result is an immediate boost leak, loss of power, and activation of limp mode. Volvo revised the clamp specification and hose part number in 2021.

Symptoms to notice

  • Sudden loss of power with engine entering limp mode at highway speeds
  • Audible pop or hiss from the engine bay under hard acceleration
  • MIL illuminated with boost pressure underrun code P0299 or P0234
  • Excessive black smoke from exhaust momentarily after boost loss

What to check

  1. Squeeze the hose along its full length and at both clamp sites feeling for cracks, softness, or delamination.
  2. Inspect the clamp for corrosion or over-tightening marks.
  3. Check for soot or oil residue around the clamp indicating a past blow-off.
  4. Confirm the revised hose part number (32229869 or later) is fitted.
  5. If a workshop inspection is possible: With the engine cold, remove the engine cover and trace the intercooler outlet hose along the driver's side of the engine to the throttle body.

Where to look: Driver's side engine bay; intercooler-to-throttle-body charge air hose and clamp at the intercooler outlet

Parts involved: Turbocharger.

Ask the seller

  • “Has the turbo inlet or charge air hose ever been replaced?”
  • “Has the car ever entered limp mode or lost power suddenly during overtaking?”
  • “Are there any stored or cleared boost pressure fault codes in the history?”

10Coolant leaks (hoses/water pump) and weak air-conditioning performance

With the engine cold, check the coolant reservoir level and look around visible hose clamps and the radiator ends for dried coolant.petrol2018 onwardCooling
OccasionalCooling $300–$1,800 to fix

Can't confirm for this car

Petrol and mild-hybrid XC40s (T3/T4/T5, B3/B4) develop coolant leaks from hose connections, the water pump and occasionally the radiator as they age, and the air-conditioning system is a repeat complaint - poor cooling, noises or outright failure reported from relatively low mileages on T5 and diesel variants. Neither is catastrophic if caught early, but an overheated 2.0 turbo engine is, and NZ summer use shows up weak air-con quickly. Both issues are cheap to check and useful negotiating points.

Symptoms to notice

  • Coolant level dropping between services
  • Coolant smell or crusty residue around hose joints
  • Air-con blowing cool but not cold
  • Hissing or unusual noises when the AC compressor engages

What to check

  1. With the engine cold, check the coolant reservoir level and look around visible hose clamps and the radiator ends for dried coolant.
  2. Run the air-con on max cold at the start of the test drive and confirm it gets genuinely cold within a couple of minutes, at idle as well as on the move.
  3. Ask for any AC regas or repair invoices - repeat regassing means a leak.

Where to look: Engine bay coolant hoses, water pump and radiator; AC condenser in front of the radiator

Parts involved: Water pump.

Ask the seller

  • “Has the car ever lost coolant or overheated?”
  • “Has the AC ever been regassed or repaired?”
  • “Any cooling system parts replaced under warranty?”

11B3 Three-Cylinder Engine Mount Vibration (B3154T)

Observe the engine at idle with the bonnet open for visible rocking.petrol2018 onwardEngine
OccasionalEngine $500–$1,200 to fix

Can't confirm for this car

The three-cylinder B3154T engine fitted to entry-level XC40 variants has an inherently higher vibration output due to the odd-cylinder firing interval. Engine mounts that degrade even moderately transmit this vibration into the cabin more noticeably than on four-cylinder variants. Premature mount failure in this application is documented on XC40 owner forums, with owners reporting increased vibration at idle and under light throttle that worsens with mount age. The issue is compounded by the relatively high torque output of the turbocharged three-cylinder.

Symptoms to notice

  • Noticeable vibration at idle through steering wheel or seat
  • Vibration worsens when engine is warm
  • Clunk on Drive engagement from Park
  • Excessive engine movement visible in engine bay under light load

What to check

Observe the engine at idle with the bonnet open for visible rocking. Compare mount condition to the vehicle mileage — mounts under 60,000km showing collapse are defective. If a workshop inspection is possible: On a hoist, apply lever force to the engine block and check for mount collapse.

Where to look: Engine mounts, left and right sides, between engine and front subframe

Ask the seller

  • “Have the engine mounts been inspected or replaced?”
  • “Is there any vibration felt at idle or under light throttle?”
  • “Has the car been serviced at a Volvo dealer or specialist?”
Electrical2

01PHEV 12V Auxiliary Battery Drain and Failure — Recharge

Ask the seller how often the car is charged; infrequent charging accelerates 12V depletion.hybrid2019–2023ElectricalRead the full fault: symptoms, where to look, what to ask the seller

02Infotainment freezes, audio dropouts and 12V battery drain

Run the infotainment hard during the viewing: navigation plus Bluetooth audio plus reversing camera, and watch for lag or crashes.2018 onwardElectrical
CommonElectrical $150–$1,500 to fix

Can't confirm for this car

Early Sensus-equipped XC40s (2018-2021) and later Google/Android Automotive cars (2022-on, including Recharge) both have well-documented software gremlins: frozen or black screens, audio cutting out entirely, slow boot-up, and connectivity dropouts. Separately, the powered tailgate motor can keep running after closing and various modules can fail to sleep, flattening the 12V battery - even on the EV, a flat 12V bricks the car. Volvo has steadily improved things via over-the-air and dealer updates, so an up-to-date car is much better behaved.

Symptoms to notice

  • Centre screen freezing or rebooting while driving
  • Audio cutting out on all sources
  • Slow start-up of the infotainment
  • Flat 12V battery after short periods parked
  • Powered tailgate motor whirring after closing

What to check

  1. Run the infotainment hard during the viewing: navigation plus Bluetooth audio plus reversing camera, and watch for lag or crashes.
  2. Confirm software is current (Settings > System > updates, or ask the dealer to check).
  3. Ask about any flat-battery incidents and check whether the 12V battery has already been replaced young.

Where to look: Centre touchscreen and driver display; 12V battery under the bonnet

Parts involved: 12V battery.

Ask the seller

  • “Is the software fully up to date - OTA or dealer?”
  • “Has the 12V battery ever gone flat or been replaced?”
  • “Any screen freezes or audio dropouts?”
Body, brakes, suspension & interior3

01Recharge: regenerative-braking software recall (loss of brakes in One Pedal Drive) and inconsistent pedal feel

ev2021 onwardBrakes
RareBrakes $0–$800 to fix

Can't confirm for this car

In mid-2025 Volvo issued a global software recall (over 400,000 vehicles including 2023-2024 XC40/EX40 Recharge) after identifying that continuous regenerative braking - coasting downhill in One Pedal Drive or 'B' mode - could momentarily cause a complete loss of braking. The fix is a free brake-control software update delivered over-the-air or by a dealer, and buyers must confirm it has been applied. Day to day, owners also note an inconsistent pedal feel as the car blends regen and friction braking, and friction discs can rust from under-use since regen does most of the stopping.

Symptoms to notice

  • Recall not yet performed on the VIN
  • Spongy or inconsistent brake pedal as regen hands over to friction brakes
  • Grinding or scoring from rusty, under-used discs
  • Brake warning messages

What to check

  1. Check the VIN with a Volvo dealer (or the NZTA/manufacturer recall lookup) to confirm the 2025 brake software recall has been completed, and check the current software version.
  2. On the test drive, use One Pedal Drive and also brake firmly from speed to feel the friction brakes bite cleanly.
  3. Look at the discs through the wheels for heavy rust scoring - common on EVs that rarely use friction brakes.

Where to look: Brake control module (software); brake discs visible behind each wheel

Ask the seller

  • “Has the 2025 brake software recall been completed on this VIN?”
  • “Is the car on the latest software?”
  • “When were the brake discs and pads last inspected?”

02Panoramic Sunroof Drain Blockage and Cabin Water Ingress

Press firmly on the headliner around the sunroof aperture — any sagging or damp feel confirms water entry.2017–2023Body & Rust
OccasionalBody & Rust $150–$4,500 to fix

Can't confirm for this car

XC40 models fitted with the optional panoramic sunroof have four drain tubes routed through the A and C pillars to exit beneath the vehicle. Debris, leaf matter, and road grime block these drains, causing water to back up and overflow into the headliner, A-pillar trim, and floor carpets. Repeated saturation of carpets and underfelt leads to corrosion of floor pan metal, mould growth, and — critically — water ingress into control modules located under the front seats.

Symptoms to notice

  • Damp or wet front floor carpets after rain, particularly driver's side
  • Sagging or stained headliner material around sunroof seal
  • Musty mould smell from carpet and A-pillar trim area
  • Intermittent electrical faults in modules located under seats
  • Water dripping from overhead dome light or sunshade housing during cornering

What to check

Press firmly on the headliner around the sunroof aperture — any sagging or damp feel confirms water entry. Pour a small amount of water into the sunroof drain channels (visible in the sunroof surround) and confirm water exits beneath the car within 30 seconds. Inspect the CEM (Central Electronics Module) under the driver's seat for corrosion or water staining. If a workshop inspection is possible: Lift the front floor mats and press the carpet; dampness or a musty smell indicates drain blockage history.

Where to look: Panoramic sunroof frame, A-pillar and C-pillar drain channels, front footwells

Parts involved: Body corrosion.

Ask the seller

  • “Have the floor carpets ever been wet or damp, particularly after heavy rain?”
  • “Have the sunroof drain channels ever been cleaned or inspected at a service?”
  • “Has any electrical fault or warning light appeared that was traced to moisture or corrosion?”

03CleanZone Air Purifier Filter Blockage — HVAC Airflow Loss

Set the HVAC blower to maximum and check airflow volume from all vents — it should be strong and consistent.2017–2023Interior
CommonInterior $80–$350 to fix

Can't confirm for this car

The XC40 CleanZone system incorporates a HEPA-grade air purifier with a filter located in the HVAC intake path. Unlike the standard cabin filter, the CleanZone filter has no standard service interval displayed in most owner handbooks and is frequently overlooked. A saturated filter severely restricts cabin airflow, forces the blower motor to work harder (shortening its life), and can cause the HVAC system to draw humid air past the filter, producing mould growth and persistent musty odour in the cabin.

Symptoms to notice

  • Noticeably weak cabin airflow even at maximum fan speed
  • Musty or stale smell from all vents, especially on startup
  • Blower motor emits a strained high-pitched whine under load
  • Windscreen demisting is slow or ineffective
  • Air quality warning or HVAC fault on the Sensus infotainment system

What to check

Set the HVAC blower to maximum and check airflow volume from all vents — it should be strong and consistent. A noticeably weak airflow on maximum fan speed is the key indicator. Ask the seller when the CleanZone filter was last replaced. If a workshop inspection is possible: Remove the glovebox to access the filter housing and visually inspect the filter condition — black or grey saturation confirms blockage.

Where to look: HVAC plenum behind glovebox, passenger side dashboard

Ask the seller

  • “Has the CleanZone air purifier filter ever been replaced, separate from the standard cabin filter?”
  • “Have you noticed any reduction in blower fan effectiveness or unusual smells from the vents?”
  • “Does the car have the full CleanZone option and has it been serviced at Volvo dealers?”

Volvo XC40 faults in detail

Each of these has its own page: the symptoms, where to look, what to ask the seller and what the repair costs. Free, no account needed.

7DCT Dual-Clutch Transmission Fluid Degradation Causing JudderMajor · TransmissionDrive-E 2.0T Excessive Oil ConsumptionMajor · EnginePHEV 12V Auxiliary Battery Drain and Failure — RechargeMajor · Electrical

What these repairs cost on other cars

Some of the Volvo XC40’s documented faults are repairs other models share. Each page lists the documented NZ cost for every model it affects.

Other Volvo models

Volvo XC9027 documented faultsVolvo XC6020 documented faultsVolvo S6018 documented faultsVolvo V6011 documented faultsVolvo XC706 documented faults

Volvo XC40 buyer questions

Is the Volvo XC40 reliable?

Like any used car, it depends on the specific example and its service history. Across the 16 documented faults for the Volvo XC40, the recurring problem areas are engine, cooling, and brakes. A Volvo XC40 with a full service history and no signs of the issues listed on this page can be a sound buy but each one needs to be checked individually before you commit.

What are the most common problems with a used Volvo XC40?

We've catalogued 16 known faults for the Volvo XC40, covering engine, cooling, and brakes. All 16 are written out in full on this page, with the symptoms to notice, what to inspect, and typical repair costs for each. Free to read, no account needed.

How much do repairs cost on a Volvo XC40?

Most single repairs on the Volvo XC40 fall between $350–$1,800 at NZ independent-workshop rates. Some of the 16 documented faults cost less and a few cost considerably more, and no one car needs them all. Knowing which ones to look for before you view is what lets you negotiate the price down or walk away.

Should I get a pre-purchase inspection on a Volvo XC40?

Yes. A Volvo XC40 inspection focused on its known weak points is the single best way to avoid an expensive mistake. KickTyres gives you a guided, model-specific inspection plus a market valuation and negotiation figure for $24.90 far less than the cost of missing one of the faults on this page.