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BYD2022–2023 Major issues documented

BYD Yuan Plus: common faults & what to check

Thinking about buying a used BYD Yuan Plus (2022–2023) in New Zealand? We've documented 5 known faults for this model spanning electrical and suspension. Each researched and verified before it's published. The most serious issues here are rated major. 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.

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

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5

Documented faults

Major

Most serious

$400–$1,100

Typical repair

2

Systems covered

Which BYD Yuan Plus are you looking at?

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

Start your free check on this BYD Yuan Plus

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BYD Yuan Plus

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Can't confirm for this car

BYD Yuan Plus

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 BYD Yuan Plus before you hand over any money. Every documented fault is listed below, each with its own page.

  • Costly issue

    Check 12V battery date stamp and test voltage under load.

    See why

    12V Auxiliary Battery Drain and System Lockout

    BYD's e-Platform 3.0 keeps multiple domain controllers active in standby, drawing more current from the 12V auxiliary battery than a conventional ICE vehicle. Batteries can flatten within 1–2 weeks without driving, leading to full system lockout where the vehicle cannot be unlocked or started. Recovery requires a jump-start or dealer reset of the BMS. Documented across NZ and AU Atto 3 owner communities.

    What you would notice

    • Vehicle completely unresponsive to key fob or door handle after sitting idle
    • No 12V power to any system
    • BMS or low-voltage fault codes on reconnection
    • Repeated need to jump-start from 12V terminals under bonnet

    Typically $250–$650 to put right.

  • Costly issue

    Open and close the charging port flap multiple times and confirm it latches positively.

    See why

    Charging Port Latch Mechanism Failure

    The combined AC and DC charging port on early BYD Atto 3 units has been reported to develop latch mechanism failures where the port flap fails to latch securely closed or the lock-release actuator sticks, preventing the charging cable from being removed after a session. The issue has required dealer intervention to resolve in some cases. A revised latch mechanism was applied in later production. Pre-owned examples should be tested with both AC and DC charger connections before purchase.

    What you would notice

    • Charging flap door failing to latch shut after closing
    • Charging cable unable to be released after a completed charge session
    • Latch actuator clicking repeatedly without disengaging the cable
    • Fault code related to charging port communication or lock

    Typically $400–$1,400 to put right.

  • Costly issue

    Lift front of vehicle and spin each wheel by hand, listening for roughness or grinding.

    See why

    Front Hub Bearing Premature Wear

    Early-production Atto 3 units (2022–2023) have documented cases of front hub bearing failure appearing before 40,000 km. The bearing is integrated into the front knuckle assembly on the e-Platform 3.0, making replacement more involved than on conventional MacPherson setups. The added unsprung mass from the front drive unit is believed to accelerate wear on the bearing spec used in initial production. Reported by NZ and AU independent EV workshops.

    What you would notice

    • Rumbling or grinding noise from front wheel, increasing with speed
    • Noise changes when steering load shifts side to side
    • ABS or traction control fault codes triggered by speed sensor in bearing
    • Vibration felt through steering wheel at highway speeds

    Typically $550–$1,200 to put right.

  • Costly issue

    Inspect CCS2 port pins for corrosion deposits.

    See why

    CCS2 Charging Port Contact Corrosion

    In NZ/AU coastal environments, salt air accelerates corrosion on the CCS2 DC fast-charge port contacts and housing. Corroded contacts cause charging errors, interrupted sessions, and in severe cases the port fails to latch or release. Documented by NZ EV forum owners and independent EV workshops along coastal regions.

    What you would notice

    • DC fast-charge session stops unexpectedly mid-session
    • Charging error codes displayed on instrument cluster
    • Port latch does not engage or release properly
    • Visible green or white corrosion deposits on charge pins

    Typically $300–$900 to put right.

  • Worth checking

    Bounce each front corner firmly and listen for knocking or creaking from the suspension.

    See why

    Front Lower Control Arm Bushing Knock and Creak

    A proportion of early BYD Atto 3 units delivered to Australia have exhibited front suspension knocking and creaking attributed to premature deterioration of the front lower control arm bushings. The issue presents as a knocking sound over potholes and expansion joints and a creaking sound when the suspension is compressed and extended slowly, such as when exiting a steep driveway. The rubber compound used in early-production bushings has shown accelerated hardening in Australian conditions. BYD warranty replacements have been carried out on confirmed units.

    What you would notice

    • Knocking from the front suspension over road imperfections
    • Creaking when the front suspension is fully compressed or extended
    • Noise changes character with steering angle
    • Clunk when traversing driveways or speed humps at low speed

    Typically $450–$1,100 to put right.

See all 5 documented issuesEverything researched for the BYD Yuan Plus.
Depends on which engine this BYD Yuan Plus has — 5Each of these is documented for one particular engine. Pick the year and engine above to see which of them apply.
Electrical3

01Charging Port Latch Mechanism Failure

Open and close the charging port flap multiple times and confirm it latches positively.ev2022 onwardElectrical
OccasionalElectrical $400–$1,400 to fix

Can't confirm for this car

The combined AC and DC charging port on early BYD Atto 3 units has been reported to develop latch mechanism failures where the port flap fails to latch securely closed or the lock-release actuator sticks, preventing the charging cable from being removed after a session. The issue has required dealer intervention to resolve in some cases. A revised latch mechanism was applied in later production. Pre-owned examples should be tested with both AC and DC charger connections before purchase.

Symptoms to notice

  • Charging flap door failing to latch shut after closing
  • Charging cable unable to be released after a completed charge session
  • Latch actuator clicking repeatedly without disengaging the cable
  • Fault code related to charging port communication or lock

What to check

  1. Open and close the charging port flap multiple times and confirm it latches positively.
  2. If a charger is available, connect and attempt to release the cable to confirm clean disengagement.
  3. Inspect the latch mechanism for signs of wear or misalignment.
  4. Check service history for any charging port repairs.

Where to look: Charging port assembly, front passenger-side guard

Ask the seller

  • “Has the charging port flap ever failed to stay closed?”
  • “Has a charging cable ever become stuck in the port?”
  • “Has BYD replaced or repaired the charging port under warranty?”

02CCS2 Charging Port Contact Corrosion

Inspect CCS2 port pins for corrosion deposits.ev2022 onwardElectrical
OccasionalElectrical $300–$900 to fix

Can't confirm for this car

In NZ/AU coastal environments, salt air accelerates corrosion on the CCS2 DC fast-charge port contacts and housing. Corroded contacts cause charging errors, interrupted sessions, and in severe cases the port fails to latch or release. Documented by NZ EV forum owners and independent EV workshops along coastal regions.

Symptoms to notice

  • DC fast-charge session stops unexpectedly mid-session
  • Charging error codes displayed on instrument cluster
  • Port latch does not engage or release properly
  • Visible green or white corrosion deposits on charge pins

What to check

  1. Inspect CCS2 port pins for corrosion deposits.
  2. Check port housing rubber seal for cracking or deformation.
  3. Test a DC fast-charge session and monitor for interruptions.
  4. Look inside port housing for moisture staining.

Where to look: Right-rear quarter panel charging port

Parts involved: Body corrosion.

Ask the seller

  • “Has the charging port been cleaned or serviced?”
  • “Where is the vehicle predominantly parked — coastal or inland?”
  • “Any charging errors or interrupted sessions shown in the BYD app history?”

0312V Auxiliary Battery Drain and System Lockout

Check 12V battery date stamp and test voltage under load.ev2022 onwardElectrical
CommonElectrical $250–$650 to fix

Can't confirm for this car

BYD's e-Platform 3.0 keeps multiple domain controllers active in standby, drawing more current from the 12V auxiliary battery than a conventional ICE vehicle. Batteries can flatten within 1–2 weeks without driving, leading to full system lockout where the vehicle cannot be unlocked or started. Recovery requires a jump-start or dealer reset of the BMS. Documented across NZ and AU Atto 3 owner communities.

Symptoms to notice

  • Vehicle completely unresponsive to key fob or door handle after sitting idle
  • No 12V power to any system
  • BMS or low-voltage fault codes on reconnection
  • Repeated need to jump-start from 12V terminals under bonnet

What to check

  1. Check 12V battery date stamp and test voltage under load.
  2. Ask about idle periods between drives.
  3. Inspect for any aftermarket accessories increasing parasitic draw.
  4. Ask if vehicle has ever failed to respond after standing for more than a week.

Where to look: 12V auxiliary battery under bonnet, right side

Parts involved: 12V battery.

Ask the seller

  • “How often is the vehicle driven? Has it ever failed to start after sitting idle?”
  • “Has the 12V auxiliary battery been replaced?”
  • “Any BMS or low-voltage fault codes in the service history?”
Body, brakes, suspension & interior2

01Front Hub Bearing Premature Wear

Lift front of vehicle and spin each wheel by hand, listening for roughness or grinding.ev2022–2023Suspension
OccasionalSuspension $550–$1,200 to fix

Can't confirm for this car

Early-production Atto 3 units (2022–2023) have documented cases of front hub bearing failure appearing before 40,000 km. The bearing is integrated into the front knuckle assembly on the e-Platform 3.0, making replacement more involved than on conventional MacPherson setups. The added unsprung mass from the front drive unit is believed to accelerate wear on the bearing spec used in initial production. Reported by NZ and AU independent EV workshops.

Symptoms to notice

  • Rumbling or grinding noise from front wheel, increasing with speed
  • Noise changes when steering load shifts side to side
  • ABS or traction control fault codes triggered by speed sensor in bearing
  • Vibration felt through steering wheel at highway speeds

What to check

  1. Lift front of vehicle and spin each wheel by hand, listening for roughness or grinding.
  2. Check for play by rocking wheel at 3 and 9 o'clock positions.
  3. Scan for ABS wheel-speed sensor fault codes.
  4. Road test at 80–100 km/h listening for droning.

Where to look: Front left and right wheel hub and knuckle assembly

Parts involved: Wheel bearing.

Ask the seller

  • “Any humming or rumbling from the front end at highway speed?”
  • “Have any ABS or stability control warnings appeared?”
  • “Have the front wheel bearings been inspected at service?”

02Front Lower Control Arm Bushing Knock and Creak

Bounce each front corner firmly and listen for knocking or creaking from the suspension.ev2022 onwardSuspension
OccasionalSuspension $450–$1,100 to fix

Can't confirm for this car

A proportion of early BYD Atto 3 units delivered to Australia have exhibited front suspension knocking and creaking attributed to premature deterioration of the front lower control arm bushings. The issue presents as a knocking sound over potholes and expansion joints and a creaking sound when the suspension is compressed and extended slowly, such as when exiting a steep driveway. The rubber compound used in early-production bushings has shown accelerated hardening in Australian conditions. BYD warranty replacements have been carried out on confirmed units.

Symptoms to notice

  • Knocking from the front suspension over road imperfections
  • Creaking when the front suspension is fully compressed or extended
  • Noise changes character with steering angle
  • Clunk when traversing driveways or speed humps at low speed

What to check

Bounce each front corner firmly and listen for knocking or creaking from the suspension. Inspect the rubber element of the front lower arm bushings for cracking or distortion. Check for any BYD warranty service records relating to front suspension work. If a workshop inspection is possible: On a hoist, grab the front lower control arm and check for play in the bushings.

Where to look: Front lower control arm bushings, both sides

Ask the seller

  • “Has any knocking or creaking been noticed from the front suspension?”
  • “Has BYD replaced any suspension components under warranty?”
  • “Is the noise present on rough roads or when parking over driveways?”

Other BYD models

BYD Atto 39 documented faultsBYD Seal6 documented faults

BYD Yuan Plus buyer questions

Is the BYD Yuan Plus reliable?

Like any used car, it depends on the specific example and its service history. Across the 5 documented faults for the BYD Yuan Plus, the recurring problem areas are electrical and suspension. A BYD Yuan Plus 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 BYD Yuan Plus?

We've catalogued 5 known faults for the BYD Yuan Plus, covering electrical and suspension. All 5 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 BYD Yuan Plus?

Most single repairs on the BYD Yuan Plus fall between $400–$1,100 at NZ independent-workshop rates. Some of the 5 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 BYD Yuan Plus?

Yes. A BYD Yuan Plus 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.